Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8840481 | Power transmission part, damper mechanism, and flywheel assembly | Kozo Yamamoto, Tomoki Hada, Kazuhiko Kawaguchi | 2014-09-23 |
| 8568243 | Flywheel assembly | Kozo Yamamoto, Tomoki Hada | 2013-10-29 |
| 8376864 | Damper mechanism | Kozo Yamamoto, Tomoki Hada | 2013-02-19 |
| 6302799 | Dampening disk assembly | Hideki Hashimoto, Takashi Harada | 2001-10-16 |
| 6283866 | Dampening disk assembly | Hideki Hashimoto, Takashi Harada | 2001-09-04 |
| 6257089 | Dampening disk assembly with spring retaining plate | Hideki Hashimoto, Takashi Harada | 2001-07-10 |
| 6244963 | Dampening disk assembly | Hideki Hashimoto, Takashi Harada | 2001-06-12 |
| 6209701 | Damper disk assembly | Hideki Hashimoto | 2001-04-03 |
| 6056103 | Dampening disk assembly | Hideki Hashimoto, Takashi Harada | 2000-05-02 |
| 6050383 | Damper disk assembly | Hideki Hashimoto | 2000-04-18 |