Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9755152 | Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Daizou Kanda, Shigeru Kusano | 2017-09-05 |
| 9564600 | Compound having an indolocarbazole ring structure and organic electroluminescent device | Norimasa Yokoyama, Makoto Nagaoka, Sawa Izumi, Hiroshi Ookuma | 2017-02-07 |
| 9553272 | Organic electroluminescent device | Norimasa Yokoyama, Eiji Takahashi, Daizou Kanda, Hiroshi Ookuma | 2017-01-24 |