Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7307157 | Process for producing chitin derivatives and/or chitosan derivatives having a crosslinked structure | Fumio Yoshii, Naotsugu Nagasawa, Hiroshi Mitomo | 2007-12-11 |
| 7208593 | Self-cross-linked alkyl cellulose | Fumio Yoshii, Tadashi Murakami | 2007-04-24 |
| 6875862 | Self-cross-linked alkyl cellulose and processes for producing the same | Fumio Yoshii, Tadashi Murakami | 2005-04-05 |
| 6617448 | Process for producing grosslinked starch derivatives and crosslinked starch derivatives produced by the same | Fumio Yoshii | 2003-09-09 |
| 6117815 | Plant growth promoter | Keizo Makuuchi, Fumio Yoshii, Naotsugu Nagasawa, Quoc Hien Nguyen | 2000-09-12 |