Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5065642 | Apparatus for absorbing torque variation | Junji Kagiyama, Kiyonori Kobayashi, Mototaka Nakane, Masakazu Kamiya, Mitsuhiro Umeyama +2 more | 1991-11-19 |
| 5025680 | Torsional damper type flywheel device | Mitsuhiro Umeyama, Masaki Inui, Kenichi Yamamoto | 1991-06-25 |
| 4693354 | Clutch damper | Mitsuhiro Umeyama, Hisao Ohtani, Kenichi Kametaka, Masaru Kinoshita, Nobuyuki Kobayashi | 1987-09-15 |
| 4319499 | Lubricating device for final drive gearing of power transmission unit | Yoshio Sanui, Yasuyoshi Yasui | 1982-03-16 |