Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9782616 | Fire extinguishing agent and fire extinguishing method | Yusuke Koshiba | 2017-10-10 |
| 7980137 | Dual pressure sensor | Motohiro Furuya | 2011-07-19 |
| 7765879 | Flow control valve for measuring flow coefficient and flow rate | Motohiro Furuya | 2010-08-03 |
| 6286550 | Valve apparatus | Seiji Yamaki, Kenichi Kawazoe, Hiroshi Yamamoto, Ryoji Okutsu, Koji Izumi | 2001-09-11 |
| D421791 | Double-seated control valve plug | Ryoji Okutsu, Ryuji Shinozaki | 2000-03-21 |
| D403049 | Double-seated control valve | Ryoji Okutsu, Hiroshi Yamamoto, Koji Izumi | 1998-12-22 |
| D403052 | Yoke of valve | Ryoji Okutsu, Hiroshi Yamamoto, Koji Izumi | 1998-12-22 |
| D350750 | Tape recorder | Yuji Oki | 1994-09-20 |
| D308717 | Fishing reel | Etsuo Hiraishi | 1990-06-19 |