Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371806 | Spark plug for internal combustion engine | Takanobu Aochi, Shinichi Okabe, Masamichi Shibata, Noriaki Nishio | 2016-06-21 |
| 9287685 | Spark plug for internal combustion engine | Takanobu Aochi, Shinichi Okabe, Masamichi Shibata, Kaori Doi | 2016-03-15 |
| 8963408 | Spark plug for internal combustion engines | Masamichi Shibata, Shinichi Okabe, Takanobu Aochi, Kaori Doi | 2015-02-24 |
| 8552629 | Spark plug designed to ensure desired degree of ignitability of fuel | Shinichi Okabe, Takanobu Aochi, Atsushi Iwami, Masamichi Shibata | 2013-10-08 |
| 8466607 | Spark plug for internal-combustion engines | Takanobu Aochi, Shinichi Okabe, Masamichi Shibata | 2013-06-18 |
| 7500455 | Valve timing control apparatus | Shigeyuki Kusano, Akira Shimadu, Eiji Isobe | 2009-03-10 |
| 7472670 | Valve timing controller | Taei Sugiura, Eiji Isobe | 2009-01-06 |
| 7458351 | Valve timing controller | Akihiko Takenaka, Eiji Isobe, Yoshihito Moriya, Takashi Inoue, Koichi Shimizu | 2008-12-02 |
| 7444969 | Variable valve timing apparatus | Yasumichi Inoue, Zenichiro Mashiki, Noboru Takagi, Yoshihito Moriya, Haruyuki Urushihata +2 more | 2008-11-04 |
| 6920855 | Valve timing adjustment device | Akihiko Takenaka | 2005-07-26 |
| 6883482 | Variable valve timing controller | Akihiko Takenaka | 2005-04-26 |
| 6848401 | Valve timing adjusting device | Akihiko Takenaka, Michio Adachi | 2005-02-01 |
| 6805082 | Valve timing adjustment device | Akihiko Takenaka | 2004-10-19 |
| 6799553 | Variable valve timing controller | Akihiko Takenaka, Haruyuki Urushihata, Hideji Tani, Hideji Yoshida | 2004-10-05 |