Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10153620 | Spark plug | Kentaro KIUCHI, Kazuhiko Mori, Yuusuke Teranishi | 2018-12-11 |
| 10063037 | Spark plug | Masaki Tokumaru, Kazuhiko Mori, Kei Takahashi | 2018-08-28 |
| 9236716 | Spark plug | Kei Takahashi | 2016-01-12 |
| 7663296 | Spark plug for internal combustion engine | Iwao Kunitomo, Yoshihiro Matsubara | 2010-02-16 |