Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9343877 | Spark plug and manufacturing method thereof | Kei Takahashi | 2016-05-17 |
| 9236715 | Spark plug and method of manufacturing spark plug | Yasushi Sakakura | 2016-01-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9343877 | Spark plug and manufacturing method thereof | Kei Takahashi | 2016-05-17 |
| 9236715 | Spark plug and method of manufacturing spark plug | Yasushi Sakakura | 2016-01-12 |