Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4275688 | Cooling system for internal combustion engine | Yoshimasa Hayashi | 1981-06-30 |
| 4245595 | Internal combustion engine for motor vehicles | Yoshimasa Hayashi, Akira Kimura | 1981-01-20 |
| 4230087 | Low-noise-level internal combustion engine | Yoshimasa Hayashi, Akira Kimura | 1980-10-28 |
| 4222353 | Cooling system for internal combustion engine | Yoshimasa Hayashi | 1980-09-16 |
| 4213440 | Low-noise-level reciprocating piston engine | Yoshimasa Hayashi, Akira Kimura | 1980-07-22 |