Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6956319 | Structure of spark plug designed to provide higher wear resistance to center electrode and production method thereof | Yasutake Ishino | 2005-10-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6956319 | Structure of spark plug designed to provide higher wear resistance to center electrode and production method thereof | Yasutake Ishino | 2005-10-18 |