●1: 50,000 scale geological quadrangle map "Hakkoda-san"
(1992-present, in charge of the Lower Pleistocene and lower units)
●Study on the Deep Geothermal Resources Survey (1992-2001,
in charge of Sub-Group Leader)
●Research Cooperation Project
on Exploration of Small-scale Geothermal Resources in the Eastern
Part of Indonesia (1997-2002, in charge of GREEN Team Leader)
●UN-ESCAP Pre-Feasibility
Study on the Geothermal Resource in the Republic of Vanuatu (2002)
●CCOP Asia Geothermal Resource
Database (2001-2004, in charge of Contact Person)