Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552476 | Spark plug for internal combustion engine having better self-cleaning function | Ken Hanashi, Hironori Osamura | 2003-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552476 | Spark plug for internal combustion engine having better self-cleaning function | Ken Hanashi, Hironori Osamura | 2003-04-22 |