Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12404848 | Electric compressor | Soichiro Hayashi | 2025-09-02 |
| 7963113 | Cylinder device | Mitsuhiro Hanaoka, Osamu Ueno, Toshiaki Mitani | 2011-06-21 |
| 7021724 | Vacuum booster | Toshiyuki Suwa | 2006-04-04 |
| 6718863 | Vacuum booster | — | 2004-04-13 |
| 6571556 | Reservoir of hydraulic master cylinder for vehicles | Kazuhiro Kosugi | 2003-06-03 |
| 5431090 | Valve member holding structure in a vacuum booster | Toshiyuki Suwa | 1995-07-11 |
| 5277100 | Tandem type vacuum booster | — | 1994-01-11 |
| 5211018 | Pedestal mount for brake | Toshiyuki Suwa | 1993-05-18 |
| 5195421 | Vacuum booster | Toshiyuki Suwa | 1993-03-23 |
| 5178054 | Tandem type vacuum booster | Chiseki Kaneko | 1993-01-12 |
| 5178055 | Vacuum booster | Toshiyuki Suwa | 1993-01-12 |
| 4987824 | Tandem-type vacuum booster with noise suppressing air passage | Kiyotaka Kobayashi, Yoshiharu Nagafuji | 1991-01-29 |
| 4887517 | Master cylinder with piston retainer | — | 1989-12-19 |
| 4821623 | Vacuum type booster | — | 1989-04-18 |