Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9972977 | Spark plug for internal combustion engine | Aki Miyawaki, Atsushi Honda, Syoichi Takemoto, Akihiro Ando, Takanobu Aochi | 2018-05-15 |
| 9954344 | Spark plug for internal combustion engine | Kenji Hattori, Toshiya Nakamura, Yasuomi Imanaka, Hirofumi Suzuki, Hiroshi Araki +2 more | 2018-04-24 |
| 9948067 | Spark plug | Ryuichi Ohno, Kenji Hattori | 2018-04-17 |