Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11901116 | Internal-combustion-engine ignition coil apparatus | Kenta Moriyama, Mitsuharu Hashiba | 2024-02-13 |
| 11107625 | Ignition coil device for internal combustion engine | Yuma Sumitomo, Mitsuharu Hashiba | 2021-08-31 |
| 10319516 | Ignition coil | Yuma Sumitomo, Mitsuhara Hashiba | 2019-06-11 |
| 8225775 | Ignition coil device | Takashi Idogawa, Takeshi Shimizu, Tomohito Matsui | 2012-07-24 |
| 7441552 | Ignition coil apparatus for an internal combustion engine | Tomohito Matsui | 2008-10-28 |
| 7295093 | Internal combustion engine ignition coil apparatus | Tomokazu Umezaki | 2007-11-13 |
| 7228854 | Ignition coil apparatus for an internal combustion engine | Masahiro Iwa | 2007-06-12 |
| 7196606 | Ignition coil apparatus for an internal combustion engine | Tomokazu Umezaki | 2007-03-27 |
| 6107790 | Ignition coil for internal combustion engine | Takafumi Narishige, Shigemi Murata, Mitsuru Koiwa, Yutaka Ohashi | 2000-08-22 |
| 5722378 | Ignition detection circuit | Masaaki Taruya, Mitsuru Koiwa | 1998-03-03 |
| 5669367 | Ignition apparatus for internal combustion engine | Shigemi Murata, Mitsuru Koiwa | 1997-09-23 |
| 5662091 | Ignition apparatus for internal combustion engine | Mitsuru Koiwa, Shigemi Murata | 1997-09-02 |
| 5477203 | Ignition coil assembly for internal combustion engine | Shigemi Murata, Mitsuru Koiwa, Yutaka Ohashi | 1995-12-19 |
| 5438971 | Ignition coil device for an internal combustion engine | Shigemi Murata, Mitsuru Koiwa, Yutaka Ohashi | 1995-08-08 |
| 5365909 | Ignitor for an internal combustion engine | Masaaki Taruya, Mitsuru Koiwa | 1994-11-22 |
| 5199407 | Current limiter in an ignition apparatus for an internal combustion engine | Masaaki Taruya, Mitsuru Koiwa | 1993-04-06 |
| 5172302 | Ignition coil unit for an internal combustion engine | Masaaki Taruya, Mitsuru Koiwa | 1992-12-15 |
| 5146907 | Ignition apparatus having a current limiting function for an internal combustion engine | Masaaki Taruya, Mitsuru Koiwa | 1992-09-15 |