Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5851250 | Filter element for air cleaner | Tsuyoshi Minari, Yasunari Arai, Yukihisa Horikoh, Kouji Kume, Hirotsugu Kojima | 1998-12-22 |
| 4300928 | Structure for supporting air filter | Hajime Akado, Akira Yamashita, Yasuhiko Nakamura | 1981-11-17 |
| 4273564 | Air cleaner of internal combustion engines | Hajime Akado, Akira Yamashita | 1981-06-16 |