Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11248504 | Exhaust device for internal combustion engine | Keisuke Kishikawa, Kazuya Yoshio, Takuya Otsuka | 2022-02-15 |
| 11236652 | Exhaust device for internal combustion engine | Keisuke Kishikawa, Kazuya Yoshio, Takuya Otsuka | 2022-02-01 |
| 10787943 | Exhaust device for internal combustion engine | Keisuke Kishikawa, Kazuya Yoshio, Takuya Otsuka | 2020-09-29 |
| 10233879 | Structure for mounting resonators to duct | Takeji Kawazumi, Fuyuki Hosokawa | 2019-03-19 |
| 9579971 | Fuel cap provided with breather mechanism | Takuma Koishikawa, Takeshi Uemae, Takashi Toriki, Takumi Sakamoto, Takeshi Shimura +2 more | 2017-02-28 |