Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639165 | Method of operating pump and bearing device for pump | Kohji Aizawa, Akira Yamaguchi, Shigenobu Nagasawa, Shiro Matsui, Kunio Takada | 1997-06-17 |
| 4915349 | Gas governor apparatus and gas piping system | Tomoaki Inoue, Kazuhiko Kawaike, Seishi Watahiki, Shinji Sonoda | 1990-04-10 |