Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6107790 | Ignition coil for internal combustion engine | Nobuyuki Sawazaki, Shigemi Murata, Mitsuru Koiwa, Yutaka Ohashi | 2000-08-22 |
| 5602714 | Ignition coil for internal combustion engine | Takeshi Shimizu | 1997-02-11 |
| 5220901 | Capacitor discharge ignition system with inductively extended discharge time | Shingo Morita, Mitsuru Koiwa | 1993-06-22 |
| 5215066 | Ignition apparatus for an internal combustion engine | Shingo Morita, Mitsuru Koiwa | 1993-06-01 |