Issued Patents All Time
Showing 76–76 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7927720 | Quinoxaline derivative and light-emitting element, light-emitting device, and electronic device using quinoxaline derivative | Hiroko Nomura, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo | 2011-04-19 |