| ■Tokyo National Research
Institute for Cultural Properties |
■Center for Conservation
Science |
| ■Department of Art Research,
Archives and Information Systems |
■Japan Center for
International Cooperation in Conservation |
| ■Department of Intangible
Cultural Heritage |
|
On Wednesday, June 11, 2025. a delegation of researchers from the National Research Institute of Cultural Heritage (NRICH), Korea, visited our Institute. The NRICH is an agency under the Cultural Heritage Administration of Korea, dedicated to the research and investigation of various aspects of Korean cultural heritage. The institution traces its origins to the Cultural Heritage Research Office of the Cultural Heritage Management Bureau, established in 1969. Currently, it operates with an organizational structure comprising two divisions, six departments, and one team—namely, the Division of Administrative Operations, the Division of Research Planning, the Department of Archaeological Research, the Department of Art and Cultural Heritage Research, the Department of Architectural Cultural Heritage Research, the Department of Conservation Science Research, the Department of Restoration Technology Research, the Department of Safety and Disaster Prevention Research, and the Digital Cultural Heritage Research Information Team, respectively. In addition, the NRICH maintains seven regional research centers (located in Gyeongju, Buyeo, Gaya, Naju, Jungwon, Seoul, and Wanju), as well as a Cultural Heritage Conservation Science Center.
Since 2023, the NRICH has been contributing information on Korean artists to the Union List of Artist Names (ULAN, https://www.getty.edu/research/tools/vocabularies/ulan/), a database managed by the Getty Research Institute (GRI) in the United States. Prior to this, our Institute had already begun collaborating with the Getty Research Institute in 2016, supplying digital data and bibliographic information on our library holdings to the Getty Research Portal (GRP, https://portal.getty.edu/)—a digital collection of art-related literature from institutions around the world. This prior collaboration served as a model case and facilitated the current exchange.
The delegation, consisting of five researchers led by Ms. Kim Eun-young, Director of the Department of Art and Cultural Heritage Research, was welcomed by Mr. KIKKAWA Hideki (Head, Modern and Contemporary Art Section, Department of Art Research, Archives and Information Systems) and Mr. TASHIRO Yuichiro (Researcher, The Archives Section, Department of Art Research, Archives and Information Systems). After a presentation on our Institute’s initiatives, both parties engaged in a productive discussion. Although based in different countries, both institutions share commonalities in the cultural context of East Asia. The discussion addressed ways to effectively disseminate information on East Asian art and culture to Western audiences, and explored avenues for future collaboration.
Our Institute is currently the only institution in Japan engaged in joint projects with the Getty Research Institute. Building on this priority status, we hope to further expand our international network and fulfill our role as a central “hub” for scholarly exchange between Japan and the world, thereby contributing more comprehensively to academic research in Japan.
(Materials from Our Institute’s Collection Registered in the GRP)
・Japanese Art Exhibition Catalogs（951 records）
・Complete series of Japanese Art of Meiji period（64 records）
・Compilation of Artist’s Seals（85 records）
・Ranking List of Japanese Artist（61 records）
・Oda Kazuma Collection （135 records）
・Maeda Seison Collection（269 records）
・Rare Books （335 records）
・Japanese Wood Print Books（210 records）
etc.
A prototype database of Bibliograhic Records from Yearbook of Japanese Art (Nihon bijutsu nenkan)
Nihon bijutsu nenkan (Year Book of Japanese Art, hereinafter called “NENKAN” https://www.tobunken.go.jp/joho/japanese/publication/nenkan/nenkan.html) is a data book that compiles trends in the art world in Japan over the course of a year. It was first published in 1936, and been published annually since, by the Art Research Institute of the Imperial Academy of Fine Arts, the predecessor of Tokyo National Research Institute for Cultural Properties (TOBUNKEN). Starting with the 2022 edition, published in January 2025, a major revision was made by removing a “References Published in Periodicals” section that had long been included in the NENKAN, and instead making them available only on the database.
As an associate fellow of the Department of Art Research, Archives and Information Systems, I conducted a presentation titled “Current Status and Issues of Nihon bijutsu nenkan” on June 5, 2025. I reported on the recent revision of NENKAN and also discussed future issues for NENKAN. The exhibition information published in the NENKAN, which is based on media available in Tokyo, is naturally biased toward the Kanto region. As one solution to this problem, I proposed a new means of information gathering through collaboration with other institutions. In the discussion following the presentation, opinions were exchanged on the significance of the institute continuing to publish NENKAN and compiling a chronological historical record, as well as anticipated issues in collaboration with other institutions.
In the future, we aim to further improve the “References in Exhibition Catalogues” section, a unique section of NENKAN, and to build a database that reflects the classification system we have developed to date for describing and understanding the art world, and to introduce a system for instantly publishing “References in Periodicals” information entered within the institute. Not only will we continue the publication of NENKAN, which has a long history, but we will also strive to provide information that is more accessible to many people, based on modern methods of providing information.
Director Kim Daljin (Kim Daljin Art Research & Consulting) introducing a digital terminal for viewing archival materials
Researcher Ms. Im Jeong-eun (Leeum Museum of Art) explaining the preservation status of the Lee Gu-yeol Collection
Researcher Ms. Lee Ji-hee (National Museum of Modern and Contemporary Art, Korea) outlining the current state of art archive
As part of a research initiative of the Department of Art Research, Archives and Information Systems, “Comprehensive Research on the Sharing of Research Findings and Scholarly Information on Cultural Properties” (Project Code: SH01), we have been conducting collaborative research with domestic and international institutions to organize and disseminate the outcomes and data of investigations on cultural properties conducted by our Institute in alignment with international standards.
In fiscal year 2025, to examine the current state of art archives in the Republic of Korea—where recent developments in both IT infrastructure and cultural initiatives have attracted growing attention—Mr. KIKKAWA Hideki (Head, Modern and Contemporary Art Section) and Mr. TASHIRO Yuichiro (Researcher, The Archives Section) conducted a field study in South Korea from Monday, June 23 to Thursday, June 26.
Their visit began at Kim Daljin Art Research & Consulting, one of South Korea’s pioneering institutions in the field of art archives. There, they met with Director Kim Daljin and Chief Archivist An Hyo-re. Although a privately operated archive, Kim Daljin Art Research & Consulting shares many points in common with our Institute, particularly in the collection of archival materials related to contemporary artists, such as through the acquisition of materials donated by Mr. SASAKI Shigeo. This visit allowed for a fruitful exchange of views concerning the preservation and utilization of archival resources.
They then visited the Leeum Museum of Art, one of Korea’s foremost private art museums. Guided by researcher Ms. Im Jeong-eun, they toured the document consultation room and viewed archival materials—including those related to the renowned modern art critic Lee Gu-yeol (1932–2020)—which had been collected in conjunction with oral history projects.
Their next destination was the Seoul Museum of Art Archives, newly established in 2023 by the Seoul Museum of Art. There, they met with curator Mr. Yu Ye-dong and records researcher Mr. Cho Eun-seong, and were introduced to cutting-edge archival preservation technologies, a comprehensive management system, and an AI-assisted art thesaurus—a systematically structured vocabulary system for art-related knowledge.
They also visited the National Museum of Modern and Contemporary Art, Korea (MMCA), South Korea’s representative institution for modern and contemporary art. Researcher Ms. Lee Ji-hee led a tour of the museum’s archival holdings. Unlike the Museum of Contemporary Art in Japan, the MMCA encompasses both contemporary and modern art dating back to the late 19th century. After visiting each of the MMCA’s branches—Gwacheon, Deoksugung, and Seoul—they held a discussion with Mr. Kim In-hye, Director of Curatorial Affairs, on the development of art archives tailored to the characteristics of the museum’s respective collections.
Since the early 2000s, the development of art archives in South Korea has advanced rapidly. Noteworthy is the active engagement of professionally trained archivists—many of whom have studied archival science at the graduate level—in overseeing and operating archival institutions. In addition, South Korea’s emphasis on the use of advanced digital technologies such as AI in both the preservation and utilization of records is particularly remarkable.
This research trip yielded significant insights into the future of art archives in Japan. It also provided an opportunity to reflect anew on the value of our Institute’s soft-content assets. At the time of the visit, the MMCA was hosting the exhibition “Surrealism and Modern Korean Painting” (April 17–July 6, Deoksugung Branch), curated by Mr. Park Hye-seong, a researcher who had previously conducted investigations at our Institute in November of the prior year into materials related to Korean students who had studied in Japan before 1945. The visit not only allowed for a meaningful reunion, but also offered a valuable opportunity to view an exhibition that had directly benefited from research conducted at our Institute.
The materials accumulated by our Institute since the 1930s include many items of great value for considering the modern history of East Asia. The long-term compilation of modern art resources, as well as the ongoing efforts to make archival holdings publicly accessible, have begun to attract the attention of researchers across East Asia. As such, it is our hope that by continuing to collaborate with various institutions, and by actively disseminating our collections, we can enhance international recognition and promote their use in research, thereby contributing to the advancement of East Asian art historical studies.
Visual investigation of damage made by termites that intruded through cracks in the floor and observation of living termites
Observation of lacquered door panels with pest damage and confirmation of sampling points
Visual investigation of decorations made by colored lacquer maki-e technique
Wat Ratchapradit, located in Bangkok, Thailand, is a first-grade Royal temple founded by King Rama IV in 1864. Since the temple’s foundation, the double-door openings of the windows and entrances of the ordination hall have been adorned with many lacquered panels made in Japan. Mother-of-pearl inlay with underpainting and colored lacquer maki-e were used to apply motifs such as flowers and birds, as well as Chinese legends, on these panels, which are highly decorative. Over time, deterioration has been detected on the panels, and therefore the Fine Arts Department of the Ministry of Culture of Thailand has been restoring them. TOBUNKEN has provided technical assistance for the restoration and conducted studies on the panels.
To maintain the solemn atmosphere of the ordination hall as a place of worship, the lacquered door panels will be returned to their original positions. However, some panels were damaged, presumably by insects. The same problems may recur if the panels are returned to their original positions without protective measures. For that reason, a research project for on-site conservation of the lacquered door panels was launched as a funded study by Wat Ratchapradit, and we conducted an on-site investigation on June 9-11, 2025.
We observed the general condition of the ordination hall, as well as the presence of wood-boring pests such as termites. We also visually inspected the lacquered door panels that were damaged by insects. Initially, we thought the panels had not been damaged recently and that insect activity had ceased. However, through our investigation, we discovered that termites currently enter the ordination hall through small cracks in the floor and that the panels may still be further damaged by termites. We will propose protective measures to the Thai side to maintain the condition of the lacquered door panels in their original positions.
In addition, we examined the lacquered door panels. Some uncertainties remain regarding the materials and techniques used for the panels, and therefore we are conducting visual investigations and scientific analyses of the fragmented materials. Based on the results of the study, we will make suggestions for the restoration and replication of the lacquered door panels.
Peeling bark from a tree using a customized spoon
Peeling off the outer parts and extracting the inner parts
Children focusing on washi-making with Mr. Fukunishi
People engaged in noriutsugi supplies intently listened to the explanation by Mr. Fukunishi
“Neri,” a substance extracted from noriutsugi trees, is essential for making Uda washi (Japanese traditional paper) that is used for cultural property restoration. Under the strong sunshine in early summer, people in Shibetsu Town, Hokkaido, carefully remove bark from noriutsugi and peel off its outer parts by hand to extract the inner parts. Furthermore, to reduce reliance on the wild species, they have begun to grow noriutsugi trees in nurseries.
Four members of the Tokyo National Research Institute for Cultural Properties (TOBUNKEN), Mr. NISHIDA Noriyoshi, Head of Analytical Science Section, Center for Conservation Science, Ms. ICHIMIYA Yae, Associate Fellow of the same Center, Ms. MAEHARA Megumi, Head of Intangible Cultural Properties Section, the Department of Intangible Cultural Heritage, and Mr. ODAWARA Naoya, Associate Fellow of the same Department, visited Shibetsu Town from June 24 to 27, 2025. They inspected the process of barking noriutsugi and peeling off its outer parts, and video-recorded the way to grow nursery trees with talks provided by the related parties. They also participated in and video recorded dissemination activities, including a workshop by Mr. FUKUNISHI Masayuki, a holder of selected conservation techniques for handmade washi essential for mounting (Uda washi paper) held at the Shibetsu Town Culture Hall, targeting elementary school students and the wider public. These videos are planned for use in research, education, and dissemination related to the succession of cultural properties after editing.
TOBUNKEN concluded an agreement on collaboration and cooperation on materials for cultural property restoration with Shibetsu Town on November 2, 2023. Recording and disseminating the activities to ensure sustainable supplies of noriutsugi and dissemination activities are expected to benefit this collaboration and cooperation.
Measuring the outside diameter of common reeds (at Kurita Trading Co., Ltd.)
Common reeds grown to over three meters
The Department of Intangible Cultural Heritage is investigating the common reeds (Phragmites australis) used to make the rozetsu (reed) of hichiriki (Japanese traditional flute) as a part of a project to investigate the raw materials essential for intangible cultural properties. Accompanied by Ms. NAKAMURA Hitomi, a hichiriki player who also makes rozetsu by herself, we conducted a survey of common reed fields around Watarase-yusuichi (retarding basin) on June 16, 2025. Watarase-yusuichi, a Ramsar-designated wetland since July 2012, is one of the largest common reed fields in Japan, as 2,500 ha of the area is covered by various plants, around half of which comprises the common reed fields.
We started this investigation by visiting Kurita Trading Co., Ltd. We asked them to select thick common reeds suitable for the rozetsu of hichiriki and provide them to us as sample materials. We plan to request several rozetsu creators to use the samples to make rozetsu and assess the suitability of common reeds grown in Watarase-yusuichi for rozetsu.
The Council for Conservation and Utilization of Watarase-yusuichi was organized, consisting of local governments, representatives of local community associations, and related associations of four cities and two towns: Tochigi City, Oyama City, and Nogi Town, Tochigi Prefecture; Itakura Town, Gunma Prefecture; Koga City, Ibaraki Prefecture; and Kazo City, Saitama Prefecture. With the Ministry of Land, Infrastructure, Transport and Tourism and the Ministry of Environment as observers, the Council is seeking a future vision for Watarase-ryusuichi and submitting requests based on accumulated discussions on damage caused by animals and the means of water control, while conducting activities to raise awareness through the creation of a guidebook for learning about its environment.
Furthermore, as it is essential to burn common reeds every year to maintain the common reed bed in good condition, the related four cities and two towns, their related fire departments, the Joint Association of Watarase-yusuichi Utilization Unions, the Acclamation Promotion Foundation, and the River Management Office of Upper Tone River set up a Common Reed Burning Network, and conduct the burning of common reeds together.
While the demand for domestic common reeds is limited and the number of business operators utilizing common reeds and Amur silvergrass has decreased to five, the network of business operators, local governments, local community associations, and related associations, manages to maintain the common reed beds in Watarase-yusuichi, and makes continuous efforts to promote public awareness and wider understanding. We are continuing to investigate the characteristics of common reeds in Watarase-yusuichi, and to explore their usage, as some gagaku players believe that they are suitable for rozetsu of hichiriki.
Applying agricultural sheets to prevent weed growth as part of cultivating kōzo.
Mr. Fukunishi explaining about kōzo raw material.
Although a wide range of tools and raw materials are used in the preservation and restoration of cultural property, fine arts, and crafts, many are at risk of being discontinued in the future due to a lack of skilled successors and increasing difficulty in securing the necessary materials. In response to this situation, the Center for Conservation Science, Department of Intangible Cultural Heritage, and the Department of Art Research, Archives and Information Systems at the Tokyo National Research Institute for Cultural Properties (TOBUNKEN) has been involved in the commissioned research of “Investigation of Tools and Materials Used for the Preservation and Restoration of Fine Arts and Crafts” as part of the project of the Agency for Cultural Affairs, “Support for the Management of Tools and Materials Used for the Preservation and Restoration of Fine Arts and Crafts.” This report introduces a field survey of the cultivation of kozo (paper mulberry), the raw material for washi (Japanese paper), which is essential for the restoration of cultural property. It also presents the current use of wood ash in the cooking process used to obtain kozo fibers.
We visited four kozo fields in Yoshino Town and Gojo City, Nara Prefecture, on June 9-10, 2025, and learned about the meticulous work involved in tasks called mekaki (the removal of unnecessary new shoots and buds to concentrate nutrients on the remaining ones) and weed control, as well as the various innovations and challenges involved in the cultivation process. There is no end to the challenges, such as determining the cause of “red streaks” that appear on the inner bark, which reduce the usable amount of raw material because they discolor the fibers, and dealing with insects that were not seen in the past. The number of people responsible for this type of cultivation management is decreasing year by year, which poses a significant challenge in terms of ensuring a stable supply of this raw material.
We also visited the paper-making factories of Mr. FUKUNISHI Masayuki and Mr. UEKUBO Ryoji. The raw materials and wood ash are carefully selected and the delicate process of removing inclusions one-by-one by hand is repeated, because such inclusions make the material unsuitable for the restoration of cultural property. The issue of ensuring a stable supply of wood ash in the future was also discussed. An alkaline solution obtained from wood ash is essential for extracting kozo fibers, but it is also becoming increasingly difficult to procure the ash to obtain good quality fiber.
Going forward, we will conduct scientific research into the interactions between ash derived from various plant species and various raw materials and woods, with the aim of addressing specific challenges. In parallel, we will focus on strengthening our role as a network hub, connecting experts and knowledge across related fields, while continuing our ongoing efforts to document production techniques and processes.
“Biography of HISHIDA Shunso, Part I” from “Documents from the Meiji and Taisho Art History Compilation Project” Mr. ODAKANE Taro, a researcher at the Institute of Art Research, compiled a critical biography of the Japanese painter HISHIDA Shunso in 1938. The results were made public in 1940 as the 9th series of “Bijutsu Kenkyu Shiryo” (Art Research Materials).
On May 1, information on “Documents from the Meiji and Taisho Art History Compilation Project” was released on the Institute’s website “Material Archives.”
https://www.tobunken.go.jp/
joho/japanese/library/pdf/
archives_TOBUNKEN_MEIJITAISHO02.pdf
The Meiji and Taisho Art History Compilation Project was a prewar compilation project conducted by the Institute of Art Research, the predecessor of the Tokyo National Research Institute for Cultural Properties (TOBUNKEN), which focused on the collection of materials related to art of the Meiji and Taisho periods and the creation of critical biographies of artists. The “Meiji and Taisho Masterpieces Exhibition” held at the Tokyo Prefectural Art Museum (now the Tokyo Metropolitan Art Museum) in 1927 under the auspices of the Asahi Shimbun was so well received that a committee was set up to compile a history of Meiji and Taisho art. In 1932, the Institute of Art Research began a compilation project funded with the profits from the exhibition donated by the Asahi Shimbun Company. Many of the art books and magazines from the Meiji and Taisho periods in the Institute’s collection were collected through this project.
The materials that have been made available to the public at this time are review biographies of artists and manuscripts of original materials written by researchers who were involved in the project. Some of the materials, such as “Historical Materials of Oil Paintings by TAKAHASHI Yuichi” (owned by Tokyo University of the Arts), have already been published, but others are valuable because they are transcriptions of materials whose existence is unknown. Advance reservations are required to view the collection.
We hope you will make use of these materials, which convey the spirit of research on Japanese modern art during the period of the Institute of Art Research.
https://www.tobunken.go.jp/joho/japanese/library/special_collection/index.html
Dedicated terminal for viewing high-resolution optical survey images in the Library
Thumbnail overview of all six volumes
Enlarged view of the calligraphic text section
We have been conducting collaborative research with domestic and international scholars on the Shuten-dōji Handscrolls by Sumiyoshi Hiroyuki, discovered in Leipzig, Germany, in 2019 (hereafter referred to as the “Leipzig Scrolls”). As of May 22, 2025, we had made the entire six-volume Leipzig Scrolls available to the public as digital content in the Library of the Tokyo National Research Institute for Cultural Properties.
Handscrolls (emaki) are a horizontal narrative painting format. When printed in books, viewing the entire work at once requires significant reduction of the size of the image, making it difficult to observe details. With the digital content, however, users can freely scroll, zoom in and out on any section, and view transcribed text alongside the text image.
Volumes 1 and 6 of the Leipzig Scrolls returned to Japan for the first time and displayed to the public at the Suntory Museum of Art as part of the Shuten Dōji Begins exhibition, which ran until June 15, 2025. The exhibition concluded successfully with positive reception.
In the digital content format, users can also view every scene from Volumes 2 through 5, which were not included in the exhibition.
Please refer to the Tobunken Library Visitor’s Guide before accessing the content.
https://www.tobunken.go.jp/joho/japanese/library/library.html
Scene from the seminar
The Department of Art Research, Archives and Information Systems regularly invites distinguished scholars from abroad to deliver presentations as part of its research seminar series. This year, on May 21, we hosted Mr. Tim T. Zhang from the Metropolitan Museum of Art in New York for a presentation titled “On the Grape Paintings by Motsurin Jōtō (Bokusai).”
Motsurin Jōtō (d. 1492), a Zen monk also known by the name Bokusai, was a devoted disciple of Ikkyū Sōjun (1394–1481). Following Ikkyū’s death, Motsurin dedicated himself to preserving and transmitting his teacher’s legacy. For Motsurin, the brush served as a crucial means for inheriting and embodying Ikkyū’s teachings as well as maintaining his monastic order after the master’s passing, as evidenced by his numerous calligraphic works, inscriptions on portraits, and inscribed paintings. The grape painting, in the collection of The Metropolitan Museum of Art, exemplifies this body of work.
In his seminar presentation, Mr. Zhang offered a close comparative analysis of the grape painting held by the Metropolitan Museum and the version housed in the Tokyo National Museum, meticulously examining the differences in artistic expression and historical context. He analyzed the five-character quatrain inscribed on the Met’s painting, which features the term rishu (lízhū in Chinese)—a precious pearl said to lie beneath a black dragon’s jaw. Mr. Zhang demonstrated how the term functions as a poetic metaphor for grapes. He argued that, within the context of Motsurin’s inscription, the grapes come to symbolize the wisdom attained through sudden enlightenment.
Mr. Zhang further observed that Motsurin appears to have touched the painted grapes with his inked fingers, leaving visible fingerprints. This physical act, he suggested, evidences his grasping of wisdom while also represents a deliberate, performative gesture grounded in the calligraphy and painting tradition of suiboku (zuìmò in Chinese, literally, “intoxicated ink”). By integrating this embodied act with the inscription’s emphasis on intoxication, Mr. Zhang revealed the work’s underlying intent to celebrate the enlightenment that Motsurin attained under his teacher’s guidance.
Mr. Zhang’s presentation illuminated the interplay between poetic symbolism and visual representation, and the immediacy of bodily traces embedded within the calculated composition. Through Motsurin’s brushwork and fingerprints, the seminar revealed how Buddhist wisdom and reverence for Ikkyū find tangible form in an interwoven practice of painting, calligraphy, and verse, known as the “Three Perfections,” leaving a deep impression on all participants.
This research seminar provided a valuable opportunity to broaden our international perspectives on the study of Zen monastic art in East Asia and opened new avenues for future collaboration and research.
We remain committed to actively inviting leading scholars from abroad and to fostering meaningful scholarly exchange on a global scale.
Performance by master HAYASHIYA Shojaku
Talk show featuring master HAYASHIYA Shojaku (right) and Mr. MIYA Nobuaki (left)
On May 23, 2025, a symposium entitled “Tokyo National Research Institute for Cultural Properties’ Recording Project for Performing Arts (Rakugo): Stories of Shohon Shibai Banashi by Master HAYASHIYA Shojaku” was held in the seminar room of the Tokyo National Research Institute for Cultural Properties (TOBUNKEN).
The Department of Intangible Cultural Heritage has been conducting projects to record performances of intangible cultural properties, mainly classical performing arts, selecting genres and repertoires that are rarely performed in public. As part of this project, we have been recording live performances of the traditional Japanese stories called Shohon Shibai Banashi by master HAYASHIYA Shojaku since 2013, and now that the number of performances has reached sixty, we decided to hold a symposium to review the records of his performance works.
The symposium began with an opening remark and introduction given by Ms. MAEHARA Megumi, Head of the Intangible Cultural Properties Section, Department of Intangible Cultural Heritage, followed by a presentation by Mr. IJIMA Mitsuru, Visiting Researcher of TOBUNKEN, entitled “The Project to Record Performances of Shohon Shibai Banashi at the Tokyo National Research Institute for Cultural Properties,” and a presentation by Mr. MIYA Nobuaki, Associate Professor, Kyoto University of the Arts, entitled “The World of Shohon Shibai Banashi.” Next, the master HAYASHIYA Shojaku performed “Masakado” (without props) and ‘Suimon-mae’ (with props) from “Shinkei Kasanegafuchi,” and the event was recorded in front of the audience. In addition, in a discussion between master HAYASHIYA Shojaku and Mr. MIYA, master Shojaku shared stories of how he became attracted to and learned Shohon Shibai Banashi, as well as his thoughts on the future of Shohon Shibai Banashi. The event concluded with a closing remark by ISHIMURA Tomo, Director of the Department of Intangible Cultural Heritage.
These recordings of master HAYASHIYA Shojaku’s performances (Shohon Shibai Banashi) will soon be available to view (with a few exceptions) at the TOBUNKEN library. An announcement will be made on our website when these become available.
The Department of Intangible Cultural Heritage will continue to record classical performing arts that are rarely performed, and make them available to the public in an appropriate manner, in an effort to contribute to the preservation of intangible cultural properties.
Conference venue
Presentation scene (poster session）
Presentation scene (oral session）
From May 6 to May 9, 2025, three members of the Center for Conservation Science―Dr. AKIYAMA Junko (Head of Preventive Conservation Section), Dr. Chi Chih Lien (Associate Fellow, Analytical Science Section), and Ms. TERASHIMA Kai (Research Assistant, Analytical Science Section)—participated in the International Conference on Analytical Techniques for Heritage Studies and Conservation – TECHNART 2025, held in Perugia, Italy.
TECHNART is an international conference focused on scientific approaches to the analysis of cultural heritage. The 2025 program featured the latest developments in non-invasive, imaging-based analytical techniques such as Macro X-ray Fluorescence Scanning (MA-XRF), Macro X-ray Powder Diffraction Scanning (MA-XRPD), and Reflectance Imaging Spectroscopy (RIS), as well as studies on image analysis using machine learning and the development of environmentally sustainable conservation materials. (See: TECHNART 2025 program.pdf)
Dr. Chi presented a poster entitled “Analysis of Green Coloring Materials in the Takamatsu Matsudaira Family Illustrated Book on Natural History Using Hyperspectral Imaging.” Focusing on a designated tangible cultural property of Kagawa Prefecture, the study employed hyperspectral reflectance data and principal component analysis (PCA) to classify and identify the green colorants used. This approach, which integrates large-scale spectral datasets with statistical methods, proved effective for gaining insight into painting materials and techniques. Discussions and exchanges during the session further underscored the importance of developing comprehensive pigment databases and advancing multidimensional data analysis as shared international challenges.
Ms. TERASHIMA gave an oral presentation titled “Investigation on the Use of Smalt in 17th–18th-Century Japanese Illustrations Using MA-XRF and RIS-VNIR,” focusing on two-dimensional spectroscopic analysis of Edo-period paintings. This presentation highlighted the use of smalt (blue pigments made from cobalt-containing glass), commonly seen in Western oil paintings, in Japanese artworks, and discussed its unique application and coloring effects. Presentations by participants from the United States and Portugal on similar topics reflected international interest, providing valuable opportunities for comparative perspectives and deeper discussions.
Many of the international research teams included not only experts in conservation science and cultural heritage science but also developers of hardware and software for analytical instruments, demonstrating an interdisciplinary approach. While cross-disciplinary research is advancing in Japan as well, further expansion of venues for diverse presentations will be key to future development. Insights gained through participation in this conference will be integrated into ongoing and future research activities.
Inspection of a funori harvesting site
Consultation with Kamitsushima Fishery Cooperative
The Center for Conservation Science of Tokyo National Research Institute for Cultural Properties (TOBUNKEN) has been commissioned by the Agency for Cultural Affairs to conduct research on “Tools and Raw Materials Used in Fine Arts and Crafts.” We are carrying out this project in collaboration with the Department of Art Research, Archives and Information Systems and the Department of Intangible Cultural Heritage. In this regard, on May 13-14, 2025, we visited Tsushima City, Nagasaki Prefecture, to conduct a survey on a material called “funori.”
Funori is a collective term for species of seaweeds belonging to the Genus Gloiopeltis in the Family Endocladiaceae, with ma-funori (Gloiopeltis tenax) and fukuro-funori (Gloiopeltis furucata) being the primary varieties used in a variety of applications. Funori is often bleached, sun-dried, and processed into a sheet-like form known as “ita-funori.” Paste made by cooking funori in water is widely used in the production of arts and crafts (such as textiles, plaster, brushes, and so on) and in cultural property restoration. In particular, its solubility in water makes it highly valued in restoration works, as it can easily be removed with water. Based on this characteristic, funori is used for temporary surface coating to protect artworks during restoration. Conservators also consider it to have a cleaning effect, making it an indispensable material for cultural property restoration.
However, due to a shortage of workers and changes in the environment, it has become increasingly difficult to obtain funori.
Most of the funori used as adhesive is harvested in Tsushima and the Goto Islands. For this survey, we visited Kamitsushima and Mitsushima, which have fishermen’s cooperatives, accompanied by Mr. OKAMURA Kazuyuki of the Agency for Cultural Affairs and Mr. OWAKI Toyohiro of Owaki Manzo Shoten Co., Ltd., a valuable manufacturer in the production of dried funori, along with representatives from the Nagasaki Prefecture of Fisheries Co-operative Association. We held a lecture meeting with seaweed harvesters about the uses and importance of funori, with lectures about the methods of funori cultivation by Ms. SAITSU Mako of the Tsushima Fisheries Industry Extension and Guidance Center, Tsushima Development Bureau, Nagasaki Prefecture, and representatives from TOBUNKEN, followed by a meeting to discuss stable supply. The participants expressed great interest in the efforts to increase production mentioned by Ms. SAITSU, making it a very valuable opportunity for discussion. We also inspected the local harvesting sites and observed the growth conditions of funori.
In the current situation in which the procurement of tools and raw materials is becoming difficult, this was a valuable opportunity to once again recognize the importance of collaboration and cooperation among various organizations to move forward together.
Survey on the façade elements of historic houses in Kirtipur
Kirtipur, located in the southwest of Kathmandu Valley in Nepal, is on the Tentative Lists of World Heritage Sites as the “Medieval historic settlement of Kirtipur.” However, due to rapid urbanization and damage caused by the Gorkha earthquake in 2015, the historic townscape of Kirtipur has been changing; notably, the number of privately owned historic houses has been decreasing, the degree of which has not yet been ascertained.
The Tokyo National Research Institute for Cultural Properties (TOBUNKEN) and the Kirtipur Municipal Government have been taking inventory of historic houses in Old Kirtipur, along with a pilot case study of preservation of a historic house.（https://www.tobunken.go.jp/materials/ekatudo/2385501.html）
During a mission that took place from May 23 to 31, 2025, TOBUNKEN staff, a Kirtipur Municipal Engineer, and a Nepalese expert conducted a survey for the inventory of historic houses, including a study on the façade elements of those houses. While 137 houses were listed in the previous survey, conducted in July of last year, this time we added more cases, bringing the total number of candidate houses to 164. Studies of the façade elements of all candidates revealed the features of the historic houses and layers of time that span the unique history of Old Kirtipur.
The collected data will be analyzed, including discussions regarding the materials involved in the construction, to clarify the criteria for what constitutes a “Historic House of Kirtipur.” This inventory of historic houses is expected to be not only useful as a record of historic houses in Kiritpur, but also as basic data for creating a regulatory framework to support the preservation of historic houses in Kiritpur.
Dr. Hisham Elleithy
Prof. Miroslav Bárta
On Saturday, May 10, 2025, the Tokyo National Research Institute for Cultural Properties (TOBUNKEN) held a symposium entitled “Archaeology and International Cooperation in Egypt.” This symposium is part of an annual series that has been held since 2021, each year focusing on a different region. It aims to promote the protection of cultural heritage through the sharing of archaeological research results, as well as reports on collaborative projects such as site conservation and capacity building.
This year’s symposium focused on Egypt and was structured in two parts: keynote lectures by invited researchers from Egypt and from the Czech Republic; and project reports from various sites of Japan’s international cooperation efforts in Egypt.
First of all, we were honored to receive a welcome address from Prof. Sakuji Yoshimura, President of Higashi-Nippon International University and a pioneering figure in Japanese Egyptology.
In Session I, Dr. Hisham Elleithy of the Supreme Council of Antiquities, Ministry of Tourism and Antiquities, Egypt, delivered a keynote lecture entitled “Recent and Ongoing International Joint Projects for the Egyptian Antiquities.” He presented archival work related to the Nubian Monuments Salvage Campaign, collaborative site management projects with France, South Korea, and Germany, and recent excavation achievements. This was followed by a lecture by Prof. Miroslav Bárta of the Czech Institute of Egyptology, Charles University, entitled “Cooperation on the Pyramid Fields: Abusir and Saqqara.” He presented an overview of the history of excavations conducted by the Czech team at the Abusir necropolis and introduced an ongoing re-excavation project at the so-called “Mariette Cemetery” in North Saqqara—originally explored by a French director of antiquities in the late 19th century but only fragmentarily published.
In Session II, the respective work and results of eight Japanese projects covering archaeological excavations, conservation, and capacity-building in Egypt were presented, entitled as follows:
“Conservation and Reconstruction of the Second Boat of Khufu” (Prof. KUROKOCHI Hiromasa; Ms. YAMADA Ayano)
“Wall Painting Conservation of the Mastaba Tomb of Idout” (Ms. SUITA Mariko)
“Excavation Project at North Saqqara” (Prog. Dr. KAWAI Nozomu)
“Excavation at Al-Khokha on the West Bank of Luxor” (Prof. Emeritus KONDO Jiro)
“Conservation of the Wall Paintings in the Royal Tomb of Amenhotep III” (Prof. NISHISAKA Akiko)
“GEM-CC (Grand Egyptian Museum Conservation Center) and GEM-JC (Joint Conservation) Projects” (Prof. TANIGUCHI Yoko)
“Excavation at Akoris” (Dr. HANASAKA Tetsu)
“Excavation at Kom al-Dibaʾ” (Prof. HASEGAWA So)
The symposium drew a significant number of researchers and graduate students, providing a valuable opportunity to reaffirm the importance of deepening archaeological knowledge through international collaboration. It also offered new prospects for academic contributions to cultural heritage preservation. Moreover, the event proved to be particularly meaningful by enabling participants to present their ongoing activities together with diverse Japanese projects beyond their institutional or team affiliations in one forum. The invited foreign experts also appreciated the opportunity to gain a comprehensive overview of the contributions being made by Japanese scholars in Egypt.
Investigation of artwork in the Museum of Art and Design Hamburg (Museum für Kunst und Gewerbe Hamburg)
Although many artworks produced in Japan are housed in institutions overseas—particularly in Europe and North America—there are only a limited number of specialists abroad who are well-versed in their conservation and restoration. As a result, when such works are undergoing deterioration or have sustained damage, it is often difficult to carry out restoration at the appropriate time and using suitable methods. Consequently, these artworks may not only become unavailable for exhibition or educational use, but also risk further deterioration.
In response to this situation, the cooperative program offers support for the conservation and restoration of Japanese artworks housed in museums, art galleries, and libraries overseas, either by bringing the artworks to Japan for restoration or by providing expert conservation advice.
Between May 26 and 29, 2025, a detailed investigation of the current condition of the work The Moon and Autumn Plants, a two-panel folding screen by IKEDA Koson, was conducted at the Museum of Art and Design Hamburg (Museum für Kunst und Gewerbe Hamburg). The museum had expressed concern regarding the condition of the work, which has not been exhibited in recent years.
The investigation revealed various forms of deterioration and damage, including flaking and loss of pigments, as well as weakening of the underlying support and lining paper. These findings confirmed that the artwork is in urgent need of conservation treatment. Additionally, it was found that the screen had undergone one or more previous disassembling restorations. During those treatments, the backing paper (karakami) and the wooden frame were reassembled in positions and orientations that differed from their original state.
Meanwhile, in the previous fiscal year, we conducted investigations and provided on-site conservation advice at the Baur Foundation, Museum of Far Eastern Art (Switzerland), the Museum Rietberg (Switzerland), and the National Museum in Poznań (Poland). Based on the findings of these investigations, preparations are currently underway to begin the restoration in Japan on the Emperor’s Visit, an eight-panel folding screen from the collection of the Museum Rietberg.
Survey of a house in Zhemgang province
Stone masonry house in Gasa province in northwest
Since 2012, the Tokyo National Research Institute for Cultural Properties (TOBUNKEN) has been continuously engaged in research on vernacular houses in Bhutan, in collaboration with the Department of Culture and Dzongkha Development (DCDD), Ministry of Home Affairs, Royal Government of Bhutan. The DCDD promotes a policy of preserving and utilizing vernacular houses by integrating them into the legal protecting framework of cultural heritage, while TOBUNKEN supports the initiative from academic and technical aspects. During a survey mission from May 13 to 23, 2025, two staff members of TOBUNKEN, one external expert from Japan, and two DCDD officials carried out the survey of traditional houses in middle, southern, and northwestern Bhutan.
Based on location information collected in advance by the DCDD, we surveyed three stone houses, one rammed earth house, and a bamboo house with post and beam structure in Zhemgang province in the south; three rammed earth houses and six stone houses in Trongsa province in the middle area; and two stone houses in Gasa province in the northwest. Among these, some upper-class houses were found to have extremely thick and substantial stone masonry walls.
As an overview of the traditional houses in Bhutan, rammed earth structures are dominant in the western area where the capital Thimphu is located, while stone masonry structures are so in the eastern and higher northern area. The previous joint surveys revealed that the border between the areas in which these two construction methods are applied is situated around Bumthang province in the middle of Bhutan. The survey conducted on this mission confirmed the architectural features of stone masonry houses in the south and northwest area of Bhutan and clarified a part of the border area of rammed earth house distribution, which is centered on the western area. It could be considered that the differences in construction methods are defined by the various local conditions, such as geographical features, natural resources, material supplies, availability of craftsmen, or by family status, social position, and so on. Further investigation into the distribution and coexistence of these two construction methods is expected to provide additional clues to understand the transition and transmission of the architectural methods of houses in Bhutan.
The surveys were conducted with the support of a JSPS Grant-in-Aid for Scientific Research (B) “Vernacular Stone Masonry Houses of Bhutan: A Study on the Architectural Characteristics and the Suitable Approach for Protection as Cultural Heritage” (Principal Researcher: TOMODA Masahiko).
Database table relationships
Since the 2022 fiscal year, Tokyo National Research Institute for Cultural Properties (TOBUNKEN) has been involved in “The Investigation of Tools and Materials Used for the Preservation and Restoration of Fine Arts and Crafts” as part of the Agency for Cultural Affairs’ “TAKUMI Project,” and the Department of Art Research, Archives and Information Systems is in charge of the “Archiving of Cultural Property Restoration Records” initiative. As reported, on March 31, 2025, a prototype of the “Database of Restoration Records for Cultural Properties (Fine Arts and Crafts)” was made publicly available online. A study meeting on this database and Restoration Records for Cultural Properties was held on April 17, 2025.
The structure and operation of this database, its status as official documentation of the restoration records regarding nationally designated cultural properties, the current situation of the source materials, and future developments were reported by Mr. OYAMADA Tomohiro, Ms. YAMANAGA Naomi, and Mr. TARASHIMA Satoshi. In a discussion that took place after the meeting, in addition to questions about the presentation, various issues were raised, such as the relationship between databases of collections at museums and art galleries and repair records, and the scope of information to be collected.
It is true that there is an impression that restorations of cultural properties are unavoidable actions taken in response to deterioration due to aging or damage by other causes. For this reason, restoration records that convey the state of the property before repair have not attracted much public attention. However, in recent years, there has been a growing awareness that cultural properties cannot be preserved unless they are repaired at appropriate intervals, and that past repair records are a great help for their future repairs and preservation. We hope that the publication of this database will encourage further discussion and organization of cultural property repair records.
His Excellency Shaikh Khalifa bin Ahmed Al Khalifa at the event
Lecturers of the symposium
The Osaka-Kansai Expo 2025 started in April, and the Kingdom of Bahrain is hosting a pavilion at the Expo. His Excellency Shaikh Khalifa bin Ahmed Al Khalifa, President of the Bahrain Authority for Culture and Antiquities (BACA), who is in charge of the pavilion, came to Japan to attend the opening ceremony of the expo.
The Tokyo National Research Institute for Cultural Properties (TOBUNKEN) has been undertaking various projects aiming to preserve the cultural heritage in Bahrain for many years. Following a request by H. E. Shaikh Khalifa bin Ahmed Al Khalifa, the institute held the symposium and experience event, “The History and Culture in Bahrain” jointly with BACA on April 20th in 2025.
Japanese and Bahraini archaeologists and Marikofun, Kofun performer, delivered lectures and participants also enjoyed presentations on the history and culture of Bahrain through various XR contents such as VR experience of Bahraini archaeological sites using VR goggles.
Digital Content of “Dōshoku sai-e”
Research Report on “Kasuga Gongen Genki-e”
Research Report on “Map of the World”
The Tokyo National Research Institute for Cultural Properties uses cutting-edge science and technology to investigate and record the precious cultural properties that our ancestors have protected and passed down, and makes the results open to the public. We have now published Ito Jakuchu’s “Dōshoku Sai-e” (30 scrolls in total) online as part of the digital content of the optical survey conducted by the Tokyo National Research Institute for Cultural Properties and the works stored in The Museum of the Imperial Collections, Sannomaru Shozokan. (https://www.tobunken.go.jp/doshokusaie/) This website publishes high-resolution photographs of Ito Jakuchu’s “Dōshoku Sai-e” taken during an optical survey conducted as a joint research project between 2001 and 2008 by the Imperial Household Agency’s Sannomaru Shozokan Museum of the Imperial Palace (as it was then) and the data of coloring material analysis using fluorescent X-rays. In addition, we have been publishing reports on “Kasuga Gongen Genki-e” (20 volumes in total), known as a representative picture scroll work from the Kamakura period, two volumes at a time, since 2017, and this is the 10th report, the final volume in the series. We have also published a comprehensive report on the “Map of the World,” including images of related works such as the “Map of the World and Four Capitals Screen” (Kobe City Museum), the “Battle of Tunis and World Map Screen” (Kōsetsu Museum of Art), “Western Kings and Princes on Horseback Screen” (Suntory Museum of Art, Kobe City Museum), and “Western Kings and Princes” (Nagasaki Museum of History and Culture). We hope that this report will be useful in future research.
