Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4491621 | Diaphragm | Tadaoki Okumoto, Masatoshi Sugimoto, Noriyuki Horiuchi, Seiichi Sahara, Tetsuo Yamada +2 more | 1985-01-01 |
| 4486480 | Rubber hose comprising a liquid nitrile-butadiene copolymer incorporated into a partially hydrogenated unsaturated acrylonitrile-butadiene copolymer | Tadaoki Okumoto, Masatoshi Sugimoto, Takashi Kawazoe, Seiichi Sahara, Tetsuo Yamada +2 more | 1984-12-04 |