Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628247 | Display system with latent image reduction | Daniel Toffolo, Silviu Palalau, William Rogers | 2003-09-30 |
| 4562822 | Ignition system for an internal combustion engine | Yasuki Ishikawa, Hiroshi Endo, Akio Kawai | 1986-01-07 |
| 4558685 | Engine ignition device | Yasuki Ishikawa, Akio Kawai | 1985-12-17 |
| 4516319 | Method of making radio frequency interference suppressing ignition distributor rotor | Iwao Imai, Hiromitsu Nagae | 1985-05-14 |
| 4510915 | Plasma ignition system for an internal combustion engine | Yasuki Ishikawa, Hiroshi Endo, Iwao Imai | 1985-04-16 |
| 4495421 | Optical power supply switching apparatus | Hiroshi Endo, Iwao Imai, Hideo Kasuya | 1985-01-22 |
| 4473755 | Device for preventing noise leakage and manufacturing method of the device | Iwao Imai, Hiroshi Endo, Hideo Kasuya | 1984-09-25 |
| 4468543 | Ignition distributor | Yukitsugu Hirota, Takao Miyashita, Tatsuo Igawa | 1984-08-28 |
| 4455989 | Plasma ignition system for internal combustion engine | Hiroshi Endo, Iwao Imai, Yasuki Ishikawa | 1984-06-26 |
| 4448181 | Plasma ignition system for an internal combustion engine | Yasuki Ishikawa, Hiroshi Endo, Iwao Imai | 1984-05-15 |
| 4445491 | Ignition system for starting a diesel engine | Yasuki Ishikawa, Hiroshi Endo, Iwao Imai | 1984-05-01 |
| 4441479 | Ignition system for a multi-cylinder internal combustion engine of a vehicle | Hiroshi Endo, Iwao Imai, Yasuki Ishikawa | 1984-04-10 |
| 4433669 | Plasma ignition system for an internal combustion engine | Yasuki Ishikawa, Hiroshi Endo, Iwao Imai | 1984-02-28 |
| 4425485 | Radio frequency interference suppressing ignition distributor rotor | Iwao Imai, Hiromitsu Nagae | 1984-01-10 |
| 4418660 | Plasma ignition system using photothyristors for internal combustion engine | Hiroshi Endo, Iwao Imai, Yasuki Ishikawa | 1983-12-06 |
| 4419547 | Ignition distributor for internal combustion engine | Iwao Imai | 1983-12-06 |
| 4403350 | Interference avoidance electronic system for an automotive vehicle | Iwao Imai | 1983-09-06 |
| 4396855 | Plasma jet ignition plug with cavity in insulator discharge end | Iwao Imai | 1983-08-02 |
| 4384331 | Noise suppressor for vehicle digital system | Hiroshige Fukuhara, Yukitsugu Hirota | 1983-05-17 |
| 4369343 | Ignition distributor having electrodes with thermistor discharging portions | Iwao Imai | 1983-01-18 |
| 4354070 | Distributor for internal combustion engine | Takao Miyashita, Hiromitsu Nagae | 1982-10-12 |
| 4337408 | Plasma jet ignition plug | Yukitsugu Hirota | 1982-06-29 |
| 4327702 | Plasma jet ignition system with noise suppressing arrangement | Iwao Imai | 1982-05-04 |
| 4308436 | Distributor for internal combustion engine | Yukitsugu Hirota, Takao Miyashita, Hiromitsu Nagae, Takeo Tamamura | 1981-12-29 |
| 4275690 | Ignition distributor | Yukitsugu Fukumori | 1981-06-30 |