Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822561 | Aluminum bearing alloy | Soji Kamiya, Yuji Yokota, Tatsuhiko Fukuoka | 1989-04-18 |
| 4818487 | Aluminum bearing alloy | Soji Kamiya, Yuji Yokota, Tatsuhiko Fukuoka | 1989-04-04 |
| 4806308 | Aluminum bearing alloy | Soji Kamiya, Yuji Yokota, Tatsuhiko Fukuoka | 1989-02-21 |