Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9385510 | Spark plug for internal combustion engine and method of manufacturing spark plug | Hironori Osamura, Kanechiyo Terada, Junichi Wada, Masamichi Shibata, Yuuki Tsukamoto | 2016-07-05 |
| 9231378 | Spark plug for internal combustion engine | — | 2016-01-05 |