Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700317 | Spark plug for an internal combustion engine and manufacturing method of the same | Keiji Kanao | 2004-03-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700317 | Spark plug for an internal combustion engine and manufacturing method of the same | Keiji Kanao | 2004-03-02 |