Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4911119 | Oil pump mounting system for internal combustion engines | Katuhiko Ohno, Keisuke Ishii | 1990-03-27 |
| 4890583 | Crankcase of an engine | Katsuhiko Ohno, Keisuke Ishii | 1990-01-02 |
| 4881510 | Breather device of an engine | Keisuke Ishii | 1989-11-21 |