Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842500 | Vane pump with positioning pins for cam ring | Tohru Fujie | 1989-06-27 |
| 4800321 | High pressure sodium lamp | Yujiro Ike, Akihiro Yonezawa, Shinichi Ooshima, Akihiro Kamiya | 1989-01-24 |