Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4748122 | 2,5-diketo-D-gluconic acid reductase | Takayasu Sonoyama, Bunji Kageyama, Masahiro Tanimoto | 1988-05-31 |
| 4287137 | Vane-type fluid impeller and method of aerating a liquid | Takayasu Sonoyama, Hiroyoshi Tani | 1981-09-01 |