- 2022 - 2026 Comprehensive research on research and preservation methods for stone cultural heritage adapted to dramatic environmental changes caused by global warming
- 2020 - 2025 Establishment of consolidation technique using the conservation inorganic materials for the wall paintings at the archaeological site of Pompei
- 2019 - 2023 Experimental study on the luminous environment for reducing lampenflora in limestone caves
- 2016 - 2020 Establishment of the new conservation / restoration methodology and management system on the wall paintings of archaeological areas of Pompeii and Herculaneum
- 2015 - 2018 Study on reduction methods of green organisms in old tombs through environmental control
- 2012 - 2015 Study on Conservation of Remaining Structure in Machu Picchu Site, Peru
- 2006 - 2008 Prediction of biological damage on brick monuments in Southeast Asia and conservation measures based on building environmental engineering
- 2002 - 2005 Research on changes in coloring of historic buildings
- 2002 - 2004 Study on Deterioration and Conservation of Sukhothai Historic Site, Thailand
- 2000 - 2003 Study for the Conservation of Mural Paintings in Temples and Tumuli of Hebei, China
- 2000 - 2001 Non-destructive and in-site analyses of the pigments of muralpaintings
- 1999 - 2001 Study on deteriorarion mechanism and protective measures of historical stone monuments
- 1998 - 2001 Conservation of Cultural Heirtage in the World - Study for the establishing the System for International Cooperation by Japan
- 1999 - 2000 Study on physical properties of materials related to the deterioration of stone monuments and brick buildings.
- 1998 - 2000 Study on the Conservation of Ayutthaya Historic Site, Thailand
- 1996 - 1998 Evaluation of Synthetic Resins as Conservative of Stone for the Conservation of Historic Buildings
- 1995 - 1997 INVESTIGATION OF DETERIORATION AND CONSERVATION OF BRICK RAMAINS IN THAILAND
- 1996 - 1996 古墳の装飾に用いられた赤色顔料に関する鉱物学的研究
- 1993 - 1995 Evaluation of Exterior Coatings (Minium Color) for Development of the Conservation of Historic Wooden Building
- 1992 - 1994 Joint Study on the Deterioration of the Relics in a Desert Region in China
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