Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11242775 | Valve timing adjustment device | Hitoshi Maegawa, Tomohiro Hayashi, Hiroki Takahashi, Kenji Tada | 2022-02-08 |
| 9972977 | Spark plug for internal combustion engine | Aki Miyawaki, Atsushi Honda, Syoichi Takemoto, Akihiro Ando, Masamichi Shibata | 2018-05-15 |
| 9377001 | Spark plug for internal combustion engine | Kaori Doi, Masamichi Shibata, Noriaki Nishio | 2016-06-28 |
| 9371806 | Spark plug for internal combustion engine | Takayuki Inohara, Shinichi Okabe, Masamichi Shibata, Noriaki Nishio | 2016-06-21 |
| 9287685 | Spark plug for internal combustion engine | Takayuki Inohara, Shinichi Okabe, Masamichi Shibata, Kaori Doi | 2016-03-15 |
| 9234491 | Spark plug for internal combustion engine | Masamichi Shibata, Noriaki Nishio, Kaori Doi | 2016-01-12 |
| 9166377 | Spark plug for internal combustion engine | Masamichi Shibata | 2015-10-20 |
| 8963408 | Spark plug for internal combustion engines | Masamichi Shibata, Takayuki Inohara, Shinichi Okabe, Kaori Doi | 2015-02-24 |
| 8552629 | Spark plug designed to ensure desired degree of ignitability of fuel | Takayuki Inohara, Shinichi Okabe, Atsushi Iwami, Masamichi Shibata | 2013-10-08 |
| 8515837 | Method of boxing fuel injectors | Tetsuji Kudoh, Hisatoshi Tsukahara | 2013-08-20 |
| 8466607 | Spark plug for internal-combustion engines | Shinichi Okabe, Takayuki Inohara, Masamichi Shibata | 2013-06-18 |