Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10790638 | Spark plug for internal combustion engine use and method of manufacturing spark plug | — | 2020-09-29 |
| 10718309 | Ignition coil for internal combustion engine | — | 2020-07-21 |
| 10460868 | Ignition coil for internal combustion engine | — | 2019-10-29 |
| 10431376 | Ignition coil for internal combustion engine | — | 2019-10-01 |
| 10359021 | Ignition coil for internal combustion engine | — | 2019-07-23 |
| 10177536 | Spark plug, spark plug gasket, and manufacturing method thereof | — | 2019-01-08 |
| 9659703 | Ignition coil for internal combustion engine | — | 2017-05-23 |
| 9548156 | Ignition coil for internal combustion engine | — | 2017-01-17 |
| 9353722 | Ignition coil for internal combustion engine | — | 2016-05-31 |
| 9010306 | Ignition coil for internal combustion engines | Katsunori Akimoto, Gakuji Moriya, Makoto Kurahashi | 2015-04-21 |
| 8925533 | Ignition coil for internal combustion engine | Kengo Nakao, Katsunori Akimoto | 2015-01-06 |
| 7394342 | Ignition coil and manufacturing method and apparatus thereof | Shoji Takahashi, Chihiro Ikedo | 2008-07-01 |
| 7381362 | Production method for ceramic porous material | Hideo Uemoto, Shunzo Shimai, Takashi Matsuyama | 2008-06-03 |
| 7234454 | Ignition coil and method for manufacturing an ignition coil | Takashi Tauchi, Koji Tsunenaga, Katsutoshi Shibata | 2007-06-26 |
| 7236074 | Ignition coil | Shouichi Takeyama | 2007-06-26 |
| 7222616 | Stick ignition coil apparatus for ignition plug | Shouichi Takeyama, Masahiko Aoyama | 2007-05-29 |
| 7145426 | Ignition coil for internal combustion engine | Shouichi Takeyama, Masahiko Aoyama | 2006-12-05 |
| 7009483 | Ignition coil device and method of manufacturing the same | Shouichi Takeyama, Masahiko Aoyama, Hideyuki Kato | 2006-03-07 |
| 6995644 | Stick-type ignition coil having improved structure against crack or dielectric discharge | Norihiro Adachi, Yoshimi Nakase, Tomonari Chiba | 2006-02-07 |
| 6982622 | Ignition coil device | Shouichi Takeyama, Masahiko Aoyama | 2006-01-03 |
| 6977572 | Stick-shaped ignition coil having internal hole for resin | Shouichi Takeyama, Masahiko Aoyama | 2005-12-20 |
| 6967552 | Ignition coil device and method of manufacturing the same | Masahiko Aoyama, Shouichi Takeyama | 2005-11-22 |
| 6930583 | Stick-type ignition coil having improved structure against crack or dielectric discharge | Norihiro Adachi, Yoshimi Nakase, Tomonari Chiba | 2005-08-16 |
| 6868844 | Ignition coil assembly | — | 2005-03-22 |
| 6861122 | Ceramic member with fine protrusions on surface and method of producing the same | Shunzo Shimai, Makoto Takahashi, Hiroaki Shitara, Fumio Tokuoka, Masahiko Ichishima +3 more | 2005-03-01 |