Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11800785 | Material for organic device and organic electroluminescent device using the same | Takuji Hatakeyama, Kazushi SHIREN, Guofang Wang, Yasuyuki Sasada | 2023-10-24 |
| 11647666 | Organic electroluminescent element | Takuji Hatakeyama, Katsuya Masuda, Motoki Yanai | 2023-05-09 |
| 11600790 | Polycyclic aromatic compound for organic electroluminescent device | Takuji Hatakeyama, Akio Tajima, Akihide MIZUTANI, Daisuke Baba | 2023-03-07 |
| 11248009 | Polycyclic aromatic compound, material for an organic device, organic electroluminescent element, display apparatus and lighting apparatus | Takuji Hatakeyama, Hiroyuki Imai, Daisuke Inoue, Akio Tajima | 2022-02-15 |
| 11139438 | Organic electroluminescent element | Takuji Hatakeyama, Daisuke Baba, Kazushi SHIREN | 2021-10-05 |
| 10811613 | Polycyclic aromatic compound | Takuji Hatakeyama, Guofang Wang, Yohei Ono, Kazushi SHIREN | 2020-10-20 |