Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136416 | Rubber composition | Takuma Tsuboi, Shotaro Shibata, Yoshiaki Kumamoto, Motoi Konishi | 2021-10-05 |
| 10961425 | Viscous water-based composition | Yoshiaki Kumamoto | 2021-03-30 |
| 10906993 | Modified cellulose fibers | Shotaro Shibata, Yoshiaki Kumamoto, Takuma Tsuboi, Motoi Konishi | 2021-02-02 |