Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9174497 | Pneumatic tire with tread having chamfered circumferential groove portion of bent auxiliary groove | Takaaki Kojima, Shungo Fujita, Shu Nagai, Soutarou Iwabuchi | 2015-11-03 |
| 8267132 | Pneumatic tire | Toshiyuki Ishiguro, Sotaro Iwabuchi, Shungo Fujita | 2012-09-18 |