Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8690627 | Organic EL element producing method comprising energization treatment step and storage treatment step | Tetsuya Katagiri | 2014-04-08 |
| 8049232 | Organic EL element having a plurality of light emitting layers | — | 2011-11-01 |
| D291095 | Laser printer | Kiyotaka Morozumi, Masanori Hashimoto | 1987-07-28 |