Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136341 | Polycyclic aromatic compound and light emission layer-forming composition | Takuji Hatakeyama, Keiichi Nakamoto, Motoki Yanai | 2021-10-05 |
| 10988917 | Toilet flush device and toilet device | Ken Higuchi, Takeya Ichiyanagi | 2021-04-27 |