Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D938896 | Automobile tire | — | 2021-12-21 |
| 11186125 | Pneumatic tire | — | 2021-11-30 |
| 9849730 | Pneumatic tire | Hideki Hamanaka, Koichi Kotoku | 2017-12-26 |
| 9783003 | Pneumatic tire | Koichi Kotoku, Hideki Hamanaka | 2017-10-10 |
| 9604503 | Pneumatic tire | Hideki Hamanaka, Koichi Kotoku | 2017-03-28 |
| 9604502 | Pneumatic tire | Tsuyoshi Kunugi, Hideki Hamanaka, Koichi Kotoku | 2017-03-28 |
| 9259971 | Pneumatic tire | Hideki Hamanaka, Koichi Kotoku | 2016-02-16 |