Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968523 | Process for preparation of shellfish extract concentrate, and shellfish extract concentrate | Koichi Usui, Masahide Ogawa, Koyoshi Takai, Teiji Sato, Masanori Tanaka | 1990-11-06 |
| 4770894 | Decolorized oyster extract concentrate | Koichi Usui, Masahide Ogawa, Kiyoshi Takai, Teiji Sato, Masanori Tanaka | 1988-09-13 |