Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033524 | Tire with three elastomeric protective layers located in the bead portion of the tire | — | 1991-07-23 |
| 4261403 | Radial tires having improved irregular wear resistance employing liquid polymer as processing and reinforcing aid in tread rubber | Isamu Imai | 1981-04-14 |