Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9793687 | Spark plug for internal combustion engine, having an annular ground electrode facing an outer circumference of a center electrode | Masataka Deguchi, Kanechiyo Terada, Tetsuya Miwa, Hironori Osamura, Yuuki Tsukamoto | 2017-10-17 |
| 9702332 | Ignition device | Koichi Hattori, Atsuya Mizutani | 2017-07-11 |
| 9660424 | Spark plug | Kaori Doi, Yuuto Tamei | 2017-05-23 |