Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879235 | Process for producing protease by cultivating a protease-producing mold in a liquid medium | Yaichi Fukushima, Tetsuro Fukase, Harumichi Itoh | 1989-11-07 |
| 4797358 | Microorganism or enzyme immobilization with a mixture of alginate and silica sol | Yaichi Fukushima, Katsumichi Osaki, Katutoshi Okamura, Kazutaka Imai | 1989-01-10 |