Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11462802 | Composition for manufacturing secondary battery separator and secondary battery including the same | Hwan-Kyu Jung, Hyo Shin Kwak, Sang Hye Shin | 2022-10-04 |
| 11261399 | Lubricant composition for gear oil | Kyong Ju Na | 2022-03-01 |
| 11111456 | Lubricant composition for hydraulic oil | Jin Hun Ju | 2021-09-07 |
| 9847469 | Natural-superlattice-structured thermoelectric material | Yong Rae Cho, Jong-soo Rhyee, Yoo Jang Song, Jin-Hee Kim | 2017-12-19 |
| 9419196 | Oxide nanoparticle-dispersed, chalcogenide-based, and phase-separated composite thermoelectric material | Jong-soo Rhyee | 2016-08-16 |
| 8092966 | Toner particle having excellent charging characteristics, long term credibility and transferring property, method for producing the same and toner containing said toner particle | Jong Eun Kim, Bong Hyun Jeong, Chang-Soon Lee | 2012-01-10 |
| 7592114 | Color toner for non-magnetic mono-component system for increasing printing quality and a method for preparing the same | Joo-Yong Park, Chang-Soon Lee | 2009-09-22 |
| 7550241 | Positive chargeable magnetic toner composition | Won-Sup Lee, Chang-Soon Lee, Joo-Yong Park | 2009-06-23 |
| 7374846 | Method for preparing of non-magnetic monocomponent color toner having superior long term stability | Tae-Hee Yoon, Joo-Yong Park, Chang-Soon Lee | 2008-05-20 |
| 7312009 | Color toner having low contamination of charging elements | Joo-Yong Park, Chang-Soon Lee | 2007-12-25 |
| 7309555 | Non-magnetic monocomponent color toner and preparation method thereof | Joo-Yong Park, Chang-Soon Lee | 2007-12-18 |