Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416361 | Friction facings reinforced with stitching | Kiyohisa Suzuki, Yasunobu Yamamoto, Ryoichi Tomikawa, Hiroshi Ban, Nobuyasu Ishida | 1983-11-22 |
| 4411851 | Method for making friction material without asbestos fibers including repeated pressing and degassing steps | Yasuhiro Matsumoto, Hisami Tsujio | 1983-10-25 |
| 4385682 | Motor vehicle clutch facing and friction property modifier therefor | Yasunobu Yamamoto, Eiji Hamada | 1983-05-31 |
| 4364997 | Clutch facing material and method for manufacturing the same | Yasunobu Yamamoto, Eizi Hamada | 1982-12-21 |
| 4187133 | Method for manufacturing a clutch facing | Yasunobu Yamamoto, Ryoichi Tomikawa, Yasuhiro Matsumoto | 1980-02-05 |