Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11424599 | Spark plug with insulator with particular shape | Naoki Nishio, Yusuke KAWASHIMA | 2022-08-23 |
| 10978856 | Spark plug | Naoki Nishio | 2021-04-13 |
| 10958044 | Spark plug | Yusuke KAWASHIMA, Naoki Nishio | 2021-03-23 |