Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10439367 | Ignition plug for an internal combustion engine and method for manufacturing the same | Masayuki Tamura, Masamichi Shibata | 2019-10-08 |
| 10323303 | Electrode material and electrode for ignition plug, and ignition plug | Hajime Ota, Kazuo Yamazaki, Naoki Sugihara | 2019-06-18 |