Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976973 | Process for producing protein-rich fish meal and fish oil | Yoichi Shirakawa, Takayoshi Azumi, Junichi Hisano | 1990-12-11 |
| 4568667 | Aqueous preparation containing vitamin E and saponins | Yoichi Shirakawa, Makoto Itoh, Keigi Koyama | 1986-02-04 |