Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9975995 | Ion conducting polymer comprising partially branched block copolymer and use thereof | Jang Yong Lee, Tae Ho Kim, Duk Man Yu, Seog Je Kim | 2018-05-22 |
| 9540319 | Method for purifying sulfonated aromatic monomer | Seog Je Kim, Ji Young Park, Dong Hyun Lee | 2017-01-10 |
| 9325023 | Method for manufacturing membrane-electrode assembly for polymer electrolyte fuel cell and membrane-electrode assembly manufactured thereby | Tae Ho Kim, Young-Jun Yoon, Kyung Seok Yoon, Duk Man Yu | 2016-04-26 |
| 8419918 | Method of surface modification of polyimide film using ethyleneimines coupling agent, manufacturing method of flexible copper clad laminate and its product thereby | Hyung Dae Kang, Seog Je Kim, Jae-heung Lee | 2013-04-16 |
| 7803460 | Filament bundle type nano fiber and manufacturing method thereof | Jae-Rock Lee, Seung-Yong Jee, Hyo Joong Kim, Seok Won Kim, Soo-Jin Park | 2010-09-28 |
| 6433184 | Polyamide-imide having head-to-tail backbone | Kil-Yeong Choi, Jae-heung Lee, Moon-Young Jin, Kyoung Su CHOI, Ho-Jin Park | 2002-08-13 |
| 6018055 | Polyarylether containing N-substituted imide groups and process for producing the same | Kil-Yeong Choi, Dong-Hack Suh, Eun-Young Chung | 2000-01-25 |
| 5955568 | Process for preparing polyamideimide resins by direct polymerization | Kil-Yeong Choi, Dong-Hack Suh, Mi-Hie Yi, Moon-Young Jin | 1999-09-21 |
| 5919942 | Cyclohexane-1,2,4,5-diimide derivative and process for preparing the same | Kil-Yeong Choi, Dong-Hack Suh, Sang Hyun Park | 1999-07-06 |
| 5824766 | Polyamideamic acid resin prepolymers, high heat resistant polyamideimide foams prepared therefrom, and processes for preparing them | Kil-Yeong Choi, Mi-Hie Yi, Moon-Young Jin | 1998-10-20 |
| 5569738 | Melt processable etherimideimide/etherimide copolymer | Kil-Yeong Choi, Jong Chan Won, Sang-Sun Woo, Youn S. Don | 1996-10-29 |
| 5532334 | Process for preparing polyamideimide resins having high molecular weight | Kil-Yeong Choi, Dong-Hack Suh, Mi-Hie Yi, Jong Chan Won | 1996-07-02 |
| 5521276 | Polyamideimide resins containing isophorone diamine structures | Kil-Yeong Choi, Mi-Hie Yi, Jae-heung Lee, Moon-Young Jin | 1996-05-28 |