Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7259193 | Liquid ink composition and method of producing a liquid ink composition | Nam-Jeong Lee, Hae-ree Joo, Joong-hwan Choi | 2007-08-21 |
| 7248060 | Test apparatus for evaluating electrical properties of liquid toner and test method for the same | Jung Wook Kim, Ki-won Seok, Deuck-woo Jang, Hae-ree Joo, Min-young Cheong | 2007-07-24 |
| 7217482 | Electrophotographic photoreceptor containing a chelate compound | Beom Jun Kim, Saburo Yokota, Hwan-koo Lee, Seung-ju Kim | 2007-05-15 |
| 7172843 | 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 | 2007-02-06 |
| 7169519 | Double-layered positively-charged organic photoreceptor | Nam-Jeong Lee, Saburo Yokota, Hwan-koo Lee, Hae-ree Joo, Beom Jun Kim | 2007-01-30 |
| 7157196 | Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material having the same | Seung-ju Kim, Saburo Yokota, Hwan-koo Lee, Beom Jun Kim | 2007-01-02 |
| 7149454 | Liquid electrophotography printer having exhaust system with oxidative catalyst filter | Young No, Kwang-ho No, Jeong-hun Pang, Joong-hwan Choi | 2006-12-12 |
| 7132208 | Composition for forming overcoat layer for organic photoreceptor and organic photoreceptor employing overcoat layer prepared from the composition | Nam-Jeong Lee | 2006-11-07 |
| 7115346 | Multi-layered electrophotographic positively charged organic photoconductor and manufacturing method thereof | Saburo Yokota, Hwan-koo Lee, Hae-ree Joo, Boem-jun Kim, Nam-Jeong Lee | 2006-10-03 |
| 7083883 | Polymer having stilbenquinone structure and electrophotographic photoreceptor containing the same | Beom Jun Kim, Saburo Yokota, Hwan-koo Lee | 2006-08-01 |
| 7083886 | Single layered electrophotographic photoreceptor | Saburo Yokota, Hwan-koo Lee, Beam-Jun Kim | 2006-08-01 |
| 7060405 | Naphthoquinone derivative and electrophotographic photoreceptor containing the same | Beom Jun Kim, Saburo Yokota, Hwan-koo Lee | 2006-06-13 |
| 7045264 | Single layered electrophotographic photoreceptor | Saburo Yokota, Hwan-koo Lee, Beom Jun Kim, Nam-Jeong Lee | 2006-05-16 |
| 7027752 | Wet-type electrophotographic printer with photocatalystic filter | Jeong-hun Pang, Joong-hwan Choi | 2006-04-11 |
| 6951703 | Liquid developer for developing latent electrostatic image and method for preparing the same | Seong-joon Chae, Joong-hwan Choi, Jeong-hun Pang | 2005-10-04 |
| 6949321 | Double-layered positively-charged organic photoreceptor | Nam-Jeong Lee, Hae-ree Joo, Saburo Yokota, Hwan-koo Lee, Beom Jun Kim | 2005-09-27 |
| 6949322 | Composition for forming overcoat layer for organophotoreceptor using polyaminoether and organophotoreceptor employing overcoat layer prepared from the composition | Nam-Jeong Lee, Saburo Yokota, Hwan-koo Lee, Hae-ree Joo, Beom Jun Kim | 2005-09-27 |
| 6413318 | Sheet coating apparatus | Yong-baek Yoo | 2002-07-02 |