Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9921508 | Method of preparing poly-silicic-ferric coagulant (PSFC) for electrostatic charge image developing toner | Sung Hwa Lee, Yeong-sik Mun | 2018-03-20 |
| 8603717 | Toner having multiple inflection points on storage modulus curve with respect to temperature and method of preparing the same | Jae Bum Park, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Sun Hwang +4 more | 2013-12-10 |
| 8492060 | Method of forming toner image and electrophotographic image forming apparatus capable of realizing wide color gamut | Dae Woong Choi, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Jae Bum Park +4 more | 2013-07-23 |
| 8475995 | Toner having core-shell structure and method of preparing the same | Dae Il Hwang, Woo Young Yang, Keon Il Kim, Jae Bum Park, Il Sun Hwang +4 more | 2013-07-02 |
| 8389196 | Method of preparing toner | Woo Young Yang, Keon Il Kim, Dae Il Hwang, Jae Bum Park, Il Sun Hwang +4 more | 2013-03-05 |
| 8389188 | Toner using resin having active hydrogen-containing group and method of preparing the same | Dong Won Kim, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Jae Bum Park +4 more | 2013-03-05 |
| 6893493 | Preparation method of solvent-free water-dispersible hydroxypropyl methyl cellulose phthalate nanoparticle | Kyu-Il Cho, Hyon Ho Baek, Jung Hyun Kim, Jun-Young Lee, Jung Hwan Park | 2005-05-17 |