Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11480080 | Muffler | Seiji Kondo, Katsuhiko Kainuma | 2022-10-25 |
| 11377990 | Exhaust pipe | Takeshi Osanai, Yoshiaki Kataoka, Hayato Tawada, Katsuhiko Kainuma | 2022-07-05 |
| 11261768 | Muffler | Hayato Tawada, Katsuhiko Kainuma | 2022-03-01 |
| 10961895 | Muffler | Tsuneyuki Higashino, Katsuhiko Kainuma, Takehiro Miura, Hayato Tawada | 2021-03-30 |
| 10180099 | Heat insulating structure for exhaust junction pipe | Masahiro Jinda, Munehiro Tsubosaka, Takuya Kondo, Toshikazu Namikiri, Manabu Yokoyama | 2019-01-15 |