Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656577 | Fluid composition for fluid coupling | Tomohiro Kato, Hironari Ueda, Mikiro Arai, Toshiaki Kuribayashi | 1997-08-12 |
| 5334319 | Composition for hydraulic lubrication and coupling | Hirotaka Tomizawa, Noboru Umemoto | 1994-08-02 |
| 5334320 | Compositions for hydraulic, lubricating and coupling | Hirotaka Tomizawa, Noboru Umemoto | 1994-08-02 |
| 5332515 | Fluid for viscous coupling | Hirotaka Tomizawa, Noboru Umemoto | 1994-07-26 |