Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340952 | Exhaust muffler combining components made of different materials | — | 1994-08-23 |
| 4779703 | Silencing device for internal combustion engine | Isao Takahashi, Hiroo Kawakami, Masaki Kojima | 1988-10-25 |