Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9842996 | Amine compound having hetero-fused ring and organic electroluminescent element using amine compound | Kei Yoshida, Toshihiro Iwakuma | 2017-12-12 |
| 9604972 | Nitrogen-containing heteroaromatic ring compound | Kei Yoshida | 2017-03-28 |