Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671705 | Control system for two opposed solenoid-type electromagnetic valve | Yasushi Matsumoto, Shigeru Yanagisawa | 1997-09-30 |
| 5669341 | Valve operating system for internal combustion engine | Akihito Ushirono, Takahiro Okuyama | 1997-09-23 |
| 5636601 | Energization control method, and electromagnetic control system in electromagnetic driving device | Takashi Moriya, Yasuyuki Komatsu, Hiroshi Sono | 1997-06-10 |