Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516319 | Method of making radio frequency interference suppressing ignition distributor rotor | Masazumi Sone, Hiromitsu Nagae | 1985-05-14 |
| 4510915 | Plasma ignition system for an internal combustion engine | Yasuki Ishikawa, Hiroshi Endo, Masazumi Sone | 1985-04-16 |
| 4495421 | Optical power supply switching apparatus | Hiroshi Endo, Masazumi Sone, Hideo Kasuya | 1985-01-22 |
| 4473755 | Device for preventing noise leakage and manufacturing method of the device | Hiroshi Endo, Masazumi Sone, Hideo Kasuya | 1984-09-25 |
| 4455989 | Plasma ignition system for internal combustion engine | Hiroshi Endo, Masazumi Sone, Yasuki Ishikawa | 1984-06-26 |
| 4448181 | Plasma ignition system for an internal combustion engine | Yasuki Ishikawa, Hiroshi Endo, Masazumi Sone | 1984-05-15 |
| 4445491 | Ignition system for starting a diesel engine | Yasuki Ishikawa, Hiroshi Endo, Masazumi Sone | 1984-05-01 |
| 4441479 | Ignition system for a multi-cylinder internal combustion engine of a vehicle | Hiroshi Endo, Masazumi Sone, Yasuki Ishikawa | 1984-04-10 |
| 4433669 | Plasma ignition system for an internal combustion engine | Yasuki Ishikawa, Hiroshi Endo, Masazumi Sone | 1984-02-28 |
| 4425485 | Radio frequency interference suppressing ignition distributor rotor | Masazumi Sone, Hiromitsu Nagae | 1984-01-10 |
| 4418660 | Plasma ignition system using photothyristors for internal combustion engine | Hiroshi Endo, Masazumi Sone, Yasuki Ishikawa | 1983-12-06 |
| 4419547 | Ignition distributor for internal combustion engine | Masazumi Sone | 1983-12-06 |
| 4403350 | Interference avoidance electronic system for an automotive vehicle | Masazumi Sone | 1983-09-06 |
| 4396855 | Plasma jet ignition plug with cavity in insulator discharge end | Masazumi Sone | 1983-08-02 |
| 4369343 | Ignition distributor having electrodes with thermistor discharging portions | Masazumi Sone | 1983-01-18 |
| 4366801 | Plasma ignition system | Hiroshi Endo, Yasuki Ishikawa | 1983-01-04 |
| 4327702 | Plasma jet ignition system with noise suppressing arrangement | Masazumi Sone | 1982-05-04 |
| 4308488 | Plasma jet ignition system | Yukitsugu Hirota | 1981-12-29 |