Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10637214 | Spark plug having a recess formed in an electrode | — | 2020-04-28 |
| 10559944 | Spark plug for internal combustion engine | Koji Yamanaka | 2020-02-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10637214 | Spark plug having a recess formed in an electrode | — | 2020-04-28 |
| 10559944 | Spark plug for internal combustion engine | Koji Yamanaka | 2020-02-11 |