- 2005 - 2007 Oxygen isotope study on diamond-facies ultrahigh-pressure metamorphic rocks (Geophysical Lab., Carnegie Inst.)
- 2004 - 2006 Growth mechanism of diamond in deeply subducted materials and its implication for carbon recycling (UC, Riverside; JSPS Long-term Program)
- 2005 - International Lithosphere Program Task Group: Ultra-Deep Continental Crust Subduction
- 1999 - 2004 International Lithosphre Program Task Group III-8 Process and Dynamics in Formation and Exhumation of the Ultrahigh-pressure Metamorphic Terrain
- 2002 - 2003 SIMS carbon isotope study of microdiamonds
- 2001 - 2002 The evolution of deeply subducted carbonates and the formation of microdiamonds
- 2001 - 2001 New discovery of coesite and ultrahigh-pressure rocks from Indian Himalayas (Wadia Inst. of Himalayan Geology)
- 1999 - 2000 Alkali magmatisms at continental collision zones and its significance for Eurasian Plate
- 1999 - 2000 Micro-Laue X-ray diffraction study on the growth mechanism of microdiamonds in dolomite marble in the Kokchetav UHP Terrane (KEK, Japan)
- 1998 - 2000 C, O and Sr isotope compositions of the carbonates in ultrahigh-pressure rocks (Geophysical Lab., Carnegie Inst.)
- 1998 - 1998 Petrogenesis of diamond facies ultrahigh-pressure metamoprphic rocks (Academy of Sciences, Kazakhstan; JSPS Short Term Program)
- 1997 - 1998 Ultrahigh-Pressure Metamorphism and Tectonics - Continental Collisions and Meterials Recycling
- 1993 - 1998 International Lithosphre Program Task Group III-6 Ultrahigh-pressure Metamorphism and Geodynamics in Collision Type Orogenic Belts
- 1996 - Study on ultrahigh-pressre metamorphic terrane, Kazakhstan (TIT)
- 1993 - Study on ultrahigh-pressure carbonate rocks (Stanford University)
- 1988 - 1990 Geochemical Studies on Basic Rocks Accompanied with Massive Sulfide Deposits
- The evolution of deeply subducted carbonates and the formation of microdiamonds
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日本地学教育学会
, 資源地質学会
, Mineralogical Society of Japan
, 日本岩石鉱物鉱床学会
, Geological Society of Japan
, Mineralogical Society of America
, Geological Society of America (Fellow)
, American Geophysical Union