Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7287507 | Engine oil supply apparatus | Makoto Shirai, Toru Fujikawa, Atsutoshi Ikegawa | 2007-10-30 |
| 4677945 | Mechanical valve lifter construction adapted for mechanical/hydraulic valve lifter interchangability | — | 1987-07-07 |