- 2021 - 2024 壬辰戦争期、豊臣秀吉=日本国王冊封のために贈られた明朝箚付・冠服類の総合的研究
- 2018 - 2022 Comprehensive research on the garments and crowns given to Japan from the Ming dynasty during the Imjin War
- 2010 - 2014 Surveillance study about the position, the structure, and the function of the double capital or the subcapital in a Korean history
- 2010 - 2014 Comparative history of capital system and capital in Japan and the Eeast Asia various countries
- 2009 - 2011 Comparative Historical Studies on Imperial Capitals (Ducheng) and these Systems in Pre-modern East Asia
- 2007 - 2009 Diachronic Research on Ancient Imperial Capitals in Japan : A Comparison of Capitals and Capital Systems in Various Countries in East Asia
- 2004 - 2008 The Urban Environmental Management in the East Asia from the Point of Historical Analysis
- 2004 - 2006 Comparative history of capital and capital system in the Eeast Asia various countries
- 2000 - 2005 A STUDY OF PUBLISHING CULTURE IN EAST ASIA
- 2001 - 2004 Priority of Ming and Qing Dynasties concerned in editing and publishing of official history
- 2001 - 2004 A Study of Publishing Culture in East Asia Group E:"Study of Publishing Policies"
- 1997 - 1999 A SOCIAL HISTORICAL STUDY OF THE CAPITAL PEKING DURING MING-CHING DYNASTIES
- 1998 - 1998 東アジア出版文化史の研究をめぐる企画調査
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