Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9985216 | Indenoindole derivative and organic electroluminescent element | Shigetaka Numazawa, Norimasa Yokoyama, Si-In KIM, Shigeru Kusano | 2018-05-29 |
| 9905770 | Compound having acridan ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Eiji Takahashi | 2018-02-27 |
| 9882136 | Organic electroluminescent device | Shuichi Hayashi, Motonori Tsuji, Yoshikazu Aoki | 2018-01-30 |
| 9871210 | Naphthotriazole derivatives and organic electroluminescence devices | Shigetaka Numazawa, Mari Toriya, Shingo Ozawa, Shigeru Kusano | 2018-01-16 |