Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6060821 | Heater equipped spark plug | Takahiro Suzuki | 2000-05-09 |
| 5852340 | Low-voltage type igniter plug having a semiconductor for use in jet and other internal combustion engines and a method of making the semiconductor | Eigo Goto | 1998-12-22 |
| 4601848 | Resistor compositions for producing a resistor in resistor-incorporated spark plugs | Masao Sakai, Makoto Sugimoto, Miyakazu Hashizume, Yutaka Tanaka | 1986-07-22 |