Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7712695 | Spool braking device for fishing reel | Isao Yusa, Toshiaki Ito | 2010-05-11 |
| 4740711 | Pipeline built-in electric power generating set | Shoji Sato, Hiroyoshi Yamamoto | 1988-04-26 |