Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4792387 | Air-fuel ratio detecting device | Takeshi Kamiya, Yutaka Nakayama, Tetsusyo Yamada | 1988-12-20 |
| 4674283 | Turbocharging system for an internal combustion engine | Noboru Ishida, Mitsuyoshi Kawamura | 1987-06-23 |
| 4584086 | Device for detecting concentration of oxygen in exhaust gas | Nobuhiro Hayakawa, Masahiko Yamada | 1986-04-22 |