Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6112577 | Piezoelectric resonance type knock sensor for internal combustion engine | Junichi Suzuka, Osamu Shinkai | 2000-09-05 |
| 5655362 | Exhaust emission control system in engine | Takuya Sugino, Takahiro Naka, Moriyoshi Awasaka, Kenji Fujiki | 1997-08-12 |
| 4964294 | Non-resonating type knock sensor | Akio Ito, Katsumi Yamamoto | 1990-10-23 |
| 4660409 | Piezoelectric pick-up device for internal combustion engine | Hiroshi Miyata | 1987-04-28 |
| 4638206 | Sheet-like piezoelectric element | Tsutomu Tsunooka, Tadashi Takeuchi, Kunihiro Ushida | 1987-01-20 |
| 4483181 | Combustion pressure peak detector for combustion control for an internal combustion engine | Koji Maekawa | 1984-11-20 |