Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809650 | Variable compression control arrangement for internal combustion engine | Hiromichi Ofuji, Takaharu Goto, Takehisa Kondo, Seinosuke Hara, Seiji Suga +2 more | 1989-03-07 |
| 4801539 | Fermentation method for producing hyaluronic acid | Hidemichi Akasaka, Hisayuki Komasaki | 1989-01-31 |