Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8398087 | Bonded piston seal | Tomoaki Nishimura, Kiyofumi Fukasawa, Katsumi Abe | 2013-03-19 |
| 7823432 | Method of forming spring washer blind-holes into a piston for an automobile transmission | Masakazu Ooka, Yoshiki Hiyama, Kentaro TANABE, Satoshi Sato, Yoshihisa Yamazaki +1 more | 2010-11-02 |
| 7789210 | Sealing device | Yasunari Hamaya, Kiichiro Goto, Ken Yoshikawa, Shinji Nagasawa, Yasushi Sugiyama +1 more | 2010-09-07 |
| 7647864 | Piston for hydraulic clutch | Toshiki Watanabe, Kiichiro Goto | 2010-01-19 |
| 6045138 | Sealing device for reciprocal movement | — | 2000-04-04 |