Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796349 | Pneumatic tire including protrusion dividing groove space of main groove having groove width narrowed during inflation | Hiroshi Iizuka | 2004-09-28 |
| 6744355 | System for notifying person of level of danger of occurrence of tire failure | Tomohiko Kogure | 2004-06-01 |