Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6151893 | Flexible tube for automobile exhaust systems | Shouji Watanabe, Tadashi Nakasuji, Eizo Suyama, Katsuyuki Okada | 2000-11-28 |
| 5967193 | Flexible pipe unit for use in exhaust pipe line of automotive engine | Tadashi Nagai, Eizo Suyama, Syoji Watanabe, Seiji Katou, Toshiaki Kimura +5 more | 1999-10-19 |
| 5901988 | Structure for coupling pipe with breeches pipe | Eizo Suyama | 1999-05-11 |
| 5806899 | Flexible connection tube for automotive exhaust system | Tanomo Norikawa | 1998-09-15 |