Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6858974 | Spark plug for internal combustion engine | Gakuji Moriya, Kenichi Ishida, Kazuyuki Kubo | 2005-02-22 |
| 6691555 | Firing state discrimination system for internal combustion engines | Gakuji Moriya, Kenichi Ishida | 2004-02-17 |
| 6655367 | Plug-hole-installed ignition coil unit for internal combustion engines | Yoshihito Ozawa, Kazuyuki Kubo, Kenichi Ishida, Gakuji Moriya | 2003-12-02 |