Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4444288 | Muffler for internal combustion engine | Mutuo Sekiya, Hideharu Tanaka, Fusaoki Uchikawa | 1984-04-24 |
| 4371581 | Sound absorber | Fusaoki Uchikawa, Hideharu Tanaka, Mutsuo Sekiya | 1983-02-01 |
| 4352853 | Sound absorber | Fusaoki Uchikawa, Hideharu Tanaka, Mutsuo Sekiya | 1982-10-05 |