- 2020 - 2025 A Historical Study of Civil Engineering Technology on the Construction of Ancient Japanese Cities
- 2017 - 2023 日本古代木簡の源流と特質
- 2014 - 2019 Study of Eastern Asia Society Culture
- 2014 - 2018 Constructing a Database of Japanese Pottery with Ink Inscriptions
- 2014 - 2018 A New Introduction to History for Researchers, Teachers and Citizens
- 2013 - 2017 Reconstruction of Japanese ancient documents in the East Asia
- 2013 - 2017 Japan-Korea Collaborative Research on Gilt Bronze Buddhist Statues in East Asia from 5th through 9th Century
- 2012 - 2017 Checkpoint and traffic policy in ancient and medieval East Asia
- 2012 - 2016 An interdisciplinary comparative study of craft production around the ancient capitals of Japan
- 2011 - 2016 Multidisciplinary studies on ceremony and management of ancient temples
- 2010 - 2016 Comprehensive Study on the Development of the Writing Culture of the Ancient Japanese Archipelago
- 2011 - 2015 Constructing a Database of Japanese Pottery with Ink Inscriptions as a Contribution to Ancient East Asian History
- 2011 - 2014 Publishing a World History Textbook for Liberal Arts Based on the Latest Research
- 2009 - 2014 Construction the study of Woodern Documents in Eastern Asia
- 2010 - 2012 The reconstruction of the system of the Ancient Japanesedocuments by the mutual comparison of wooden tablets and Shosoin documents,compilations
- 2008 - 2012 The improvement of the Support system to decode excavated historical documents and the development of the comprehensive research center database
- 2007 - 2010 Compilation of Date Base of Pottery with Ink Inscriptions as an Approach to Understanding Local Societies of Ancient Japan.
- 2006 - 2008 The study of wooden tablets in Asuka and Fujiwara areas, and the routiene in the public office
- 2006 - 2008 The Study of Transferring Historical Records in Nara during Modern Times
- 2004 - 2007 A Synthetic study on Cities and Gardens in Ancient East Asia
- 2003 - 2007 The development of the automatical system with a reasoning function which recognizes the character of the excavated written sources such as Wooden Tablets
- 2003 - 2005 7世紀出土文字史料の研究-書風と全国出土遺構に関する情報収集-
- 2002 - 2004 The research of a lawsuit documents and related historical materials at the Heian era
- 1998 - 1999 都鄙間交流からみた日本律令国家の研究
- 古代都城制の研究
- 出土文字資料の研究
- 日本古代交通の研究
- Study on the ancient Palace Site
- Study on the documents excavated
- Study on Japanese ancient traffic system
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