Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8227161 | Electrophotographic toner and method of preparing the same | Yoda Shin, Tac-hoe Koo | 2012-07-24 |
| 8158320 | Toner and process of preparing the same | In-Bae Kim, Ki-won Seok | 2012-04-17 |
| 8137885 | Hybrid toner and method of preparing the same | In-Bae Kim, Sang-deok Kim | 2012-03-20 |
| 7935470 | Toner for electrophotography | Jae-hyeuk Jeong, Min-young Cheong, Kyeong Pang, Yo-da Shin, Hae-ree Joo | 2011-05-03 |
| 7932008 | Hybrid toner and method of preparing the same | In-Bae Kim, Sang-eun Shim | 2011-04-26 |
| 7927776 | Toner for electrophotography | Jae-hyeuk Jeong, Hae-ree Joo | 2011-04-19 |
| 7892716 | Method of preparing core-shell toner and toner prepared using the method | Min-young Cheong, Chang-kook Hong, Jun-Young Lee | 2011-02-22 |
| 7842449 | Method of preparing toner and toner prepared using the method | Chang-kook Hong, Jun-Young Lee, Min-young Cheong | 2010-11-30 |
| 7759041 | Method of preparing toner and toner prepared using the method | Chang-kook Hong, Min-young Cheong | 2010-07-20 |
| 7749675 | Method of preparing toner and toner prepared using the method | Jun-Young Lee, Chang-kook Hong, Min-young Cheong | 2010-07-06 |
| 7585608 | Method of preparing toner and toner prepared using the method | Chang-kook Hong, Jun-Young Lee, Min-young Cheong | 2009-09-08 |
| 7494754 | Electrophotographic photoreceptor containing asymmetric naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same | Beom Jun Kim, Seung-ju Kim, Saburo Yokota, Moto Makino, Ji-Young Lee +1 more | 2009-02-24 |
| 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, Moto Makino, Hwan-koo Lee +2 more | 2008-11-11 |
| 7432029 | Electrophotographic photoreceptor containing asymmetrical naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the photoreceptor | Seung-ju Kim, Beom Jun Kim, Ji-Young Lee, Saburo Yokota, Moto Makino +1 more | 2008-10-07 |
| 7413836 | Electrophotographic photoreceptor containing asymmetrical naphthalenetetracarboxylic acid diimide derivative as electron transporting material in a charge generating layer and electrophotographic image forming apparatus employing the photoreceptor | Seung-ju Kim, Beom Jun Kim, Saburo Yokota, Moto Makino, Hwan-koo Lee +1 more | 2008-08-19 |
| 7396624 | Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same | Beom Jun Kim, Seung-ju Kim, Saburo Yokota, Hwan-koo Lee | 2008-07-08 |
| 7378214 | Preparation method of toner having micro radius | Jun-Young Lee, Sang Woo Kim | 2008-05-27 |
| 7374852 | Liquid toner composition and preparation method of the same | Min-young Cheong, Ki-won Seok, Jung Wook Kim, Hae-ree Joo, Nam-Jeong Lee | 2008-05-20 |
| 7371496 | Liquid toner for electrophotography and method of preparing the same | Nam-Jeong Lee, Joong-hwan Choi, Min-young Cheong, Ki-won Seok | 2008-05-13 |
| 7354534 | Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same | Nam-Jeong Lee, Saburo Yokota, Hwan-koo Lee, Hae-ree Joo, Boom-jun Kim | 2008-04-08 |
| 7349654 | Developer cartridge for a wet-type image forming apparatus | Hae-ree Joo, Jung Wook Kim, Ki-won Seok, Deuck-woo Jang, Min-young Cheong | 2008-03-25 |
| 7314692 | Phenylazomethylene-cyclohexadienone derivatives comprising electron withdrawing group and electrophotographic photoreceptor comprising the derivatives | Beom Jun Kim, Saburo Yokota, Hwan-koo Lee, Seung-ju Kim | 2008-01-01 |
| 7307129 | Method for preparing latex containing pigment copolymerized with a crystalline polymer | Jun-Young Lee, Sang Woo Kim | 2007-12-11 |
| 7291429 | Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material using the derivatives | Beom Jun Kim, Saburo Yokota, Hwan-koo Lee, Seung-ju Kim | 2007-11-06 |
| 7271236 | Preparation method of polyester resin | Sang Woo Kim, Young-Ho Lee, Seong-geun Oh | 2007-09-18 |