Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7307157 | Process for producing chitin derivatives and/or chitosan derivatives having a crosslinked structure | Fumio Yoshii, Naotsugu Nagasawa, Tamikazu Kume | 2007-12-11 |
| 5977203 | Process for producing crosslinked polycaprolactone | Keizo Makuuchi, Fumio Yoshii, Shin Hasegawa, Darmawan Darwis | 1999-11-02 |