Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34906 | Motor-driven throttle valve assembly | Isamu Ishizawa | 1995-04-18 |
| 4840146 | Multiple throttle mechanism for internal combustion engines | Shozo Yanagisawa, Isamu Ishizawa | 1989-06-20 |
| 4809659 | Motor-driven throttle valve assembly | Isamu Ishizawa | 1989-03-07 |
| 4779597 | Fail-safe system for vehicle engine | Yutaka Takaku | 1988-10-25 |
| 4712531 | Apparatus for adjusting specific volume of intake air for engine | Isamu Ishizawa | 1987-12-15 |
| 4660518 | Idling return device for internal combustion engines | — | 1987-04-28 |
| 4247491 | Accelerator pump for carburetor | Tohru Nakagawa | 1981-01-27 |
| 4245608 | Idling control apparatus for internal combustion engine | Tohru Nakagawa | 1981-01-20 |