Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9147522 | Ignition coil for internal combustion engine | Makio Takahashi, Takanobu Kobayashi, Yoichi Anzo, Makoto Kurahashi | 2015-09-29 |
| 9010306 | Ignition coil for internal combustion engines | Kazuhide Kawai, Katsunori Akimoto, Makoto Kurahashi | 2015-04-21 |
| 8528533 | Plughole waterproofing device for engine | Shoji Kishi, Takahiro Kajihara, Makoto Kurahashi | 2013-09-10 |
| 6858974 | Spark plug for internal combustion engine | Kenichi Ishida, Kazuyuki Kubo, Toshihiro Ohkama | 2005-02-22 |
| 6803765 | Misfire detection system for internal combustion engines | Kenichi Ishida, Toshihiro Okama, Kazuyuki Kubo, Tomoyuki Kimura | 2004-10-12 |
| 6691555 | Firing state discrimination system for internal combustion engines | Toshihiro Ohkama, Kenichi Ishida | 2004-02-17 |
| 6655367 | Plug-hole-installed ignition coil unit for internal combustion engines | Toshihiro Ohkama, Yoshihito Ozawa, Kazuyuki Kubo, Kenichi Ishida | 2003-12-02 |