- 2017 - 2020 Market Fluctuations and Fertilizer Merchants in the Late Modern period
- 2017 - 2019 近世後期の肥料商と社会変動
- 2017 - 2018 越後宮川新田高橋家文書の研究
- 2015 - 2017 近世の肥料商と農業経営
- 2012 - 2014 近世・近代の地域社会と名望家
- 2011 - 2013 Local Market and Manure Merchants in the Late Tokugawa Period
- 2009 - 2012 Fundamental Research on the Idomura Family in Ohmi-no-kuni,Sakata-gun,Minoura-mura, and their Documents
- 2012 - 近世質地請戻し慣行の研究
- 2010 - 日本近世の自立と連帯
- 2008 - 2010 Commercial Crop Areas and Manure Merchants in the Late Tokugawa Period
- 2005 - 2007 日本近世村落における共生と対抗
- 2006 - 2007 Studies on Kyosei Philosophy from Standpoint of Eastern Thoughts
- 2006 - 2007 A fundamental study of manure dealer in Tokugawa Period
- 2004 - 2005 A Basic Research on People's Consciousness of Social Unity in the TOKUGAWA Period
- 1997 - 1998 An Introductory Study of the Unification of the Peasantry in the Early-Modem Times
- 1991 - 1992 近世の土地売買と社会慣行の研究
- 近世民衆社会意識論
- 土地所有論
- 日本の近代化と民衆社会
- 日本の近代化と商業・市場
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