Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158584 | Oxygen enriching module and oxygen enriching apparatus using same | — | 1992-10-27 |
| 4926817 | Combustion chamber of subchamber type internal combustion engine | Koji Imoto, Tadao Omura, Yoichi Kataoka, Kunihiko Nakajima, Motoyuki Maekawa +1 more | 1990-05-22 |
| 4875445 | Combustion chamber of a sub-chamber type internal combustion engine | Koji Imoto, Mataji Tateishi, Tadao Omura, Kunihiko Nakajima, Motoyuki Maekawa +1 more | 1989-10-24 |