Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8920894 | Rubber-resin laminate | Toyofumi Otaka, Yoritaka Yasuda, Taro Ozaki | 2014-12-30 |
| 8871118 | Semi-conductive rubber composition and vulcanizate thereof | Yoritaka Yasuda, Toyofumi Otaka, Tadahiro Ono | 2014-10-28 |