Issued Patents 2017
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9842999 | Benzotriazole derivative and an organic electroluminescent device | Shigetaka Numazawa, Kanae OTSUKA, Shigeru Kusano | 2017-12-12 |
| 9837620 | Benzopyridoindole derivative and organic electroluminescent element | Kouki KASE, Shigeru Kusano, Teruaki Koizumi | 2017-12-05 |
| 9818949 | Compound having acridan ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Eiji Takahashi | 2017-11-14 |
| 9732036 | Compound having carbazole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Kazunori Togashi, Shigeru Kusano | 2017-08-15 |
| 9705099 | Phosphorescent organic light emitting devices having a hole transporting cohost material in the emissive region | Vadim Adamovich, Hitoshi Yamamoto, Michael S. Weaver, Norimasa Yokoyama, Naoaki Kabasawa | 2017-07-11 |
| 9705092 | Phosphorescent organic light emitting devices combined with hole transport material having high operating stability | Hitoshi Yamamoto, Michael S. Weaver, Norimasa Yokoyama, Naoaki Kabasawa | 2017-07-11 |
| 9564600 | Compound having an indolocarbazole ring structure and organic electroluminescent device | Norimasa Yokoyama, Sawa Izumi, Hiroshi Ookuma, Shuichi Hayashi | 2017-02-07 |