Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481124 | Thermal shock resistant porous sound absorbing body | Shosuke Koga, Mitsuru Koketsu, Yoshihiro Ohta | 1984-11-06 |
| 4378859 | Silencer for intake/exhaust gas duct | Masanosuke Ikai | 1983-04-05 |
| 4336863 | Silencer in gas flow passage | — | 1982-06-29 |