Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10777974 | Spark plug for internal combustion engine that makes re-discharge less prone to occur | Noriaki Nishio, Masamichi Shibata, Kanechiyo Terada, Ken Hanashi, Fumiaki Aoki | 2020-09-15 |
| 10693280 | Spark plug | — | 2020-06-23 |