Research theme for competitive and other funds (3)：
2007 - 2009 The mechanism of multifunctional biological activity of Ganoderma lucidam with preventive effects of sex-hormone related disease
2006 - 2007 Effect of Australian cypress essential oils on Anti-obesity and elucidation of the mechanisms
2003 - 2005 Expressions and functions of poplar peroxidase related to lignin biosynthesis and stress responses.
H. Tan, A. Ashour, Y. Katakura, K. Shimizu. A structure-activity relationship study on antiosteoclastogenesis effect of triterpenoids from the leaves of loquat (Eriobotrya japonica). Phytomedicine. 2015. 22. 4. 498-503
Q. Zhu, T. Nakagawa, A. Kishikawa, K. Ohnuki, K. Shimizu. In vitro bioactivities and phytochemical profile of various parts of the strawberry (Fragaria×ananassa var. Amaou). Journal of Functional Foods. 2015. 13. 1. 38-49
E.T. Arung, W. Suwinarti, M. Hendra, Supomo, I. W. Kusuma, D. C. N. Puteri, H. A. Eroglu, Y-U, Kim, K. Shimizu, H. Ishikawa. Antioxidant and anti-melanogenesis activities of an extract of the Indonesian Lai fruit (Durio kutejensis). Tropical Journal of Pharmaceutical Research. 2015. 14. 1. 41-46