Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9146457 | Electro-photographic photoreceptor and image forming apparatus including the same | Seung-ju Kim | 2015-09-29 |
| 8778579 | Electrophotographic photoreceptor having excellent lifetime characteristics and charge uniformity, and electrophotographic image forming apparatus and electrophotographic cartridge using the electrophotographic photo receptor | — | 2014-07-15 |
| 7449270 | Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives as electron transport materials in charge generating layer and the electrophotographic imaging apparatus using the photoreceptor | Beom Jun Kim, Seung-ju Kim, Saburo Yokota, Kyung-yol Yon, Moto Makino +2 more | 2008-11-11 |