Issued Patents 2016
Showing 1–2 of 2 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 |