①1990–1998 Fiscal Years: Based on a Grant-in-Aid for Publication of Scientific Research Results (Ministry of Education, Culture, Sports, Science and Technology)
and cooperation from the Japanese Society for the Study of Wooden Documents.
②2003–2007: Grant-in-Aid for Scientific Research (S), titled "The development of the automatical system with a reasoning function which recognizes the character of the excavated written sources such as Wooden Tablets" (Representative researcher WATANABE Akihiro, project number 15102001)
③2008–2012: Grant-in-Aid for Scientific Research (S), titled "The improvement of the support system to decode excavated historical documents and the development of the comprehensive research center database" (Representative researcher WATANABE Akihiro, project number 20222002)
④2013–2017: Grant-in-Aid for Scientific Research (S), titled "Collection and regulation of functional data for converting excavated documentary materials such as mokkan into an academic resource" (Representative researcher WATANABE Akihiro, project number 25220401)
⑤2008–2010: Grant-in-Aid for Scientific Research under the category of Grant-in-Aid for Young Scientists (B), titled "Analysis and extraction study on syntax and character mark pattern of wood tablets" (Representative researcher BABA Hajime, project number 20720182)