Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8316689 | Quantitative evaluation of scratch-induced damages on polymeric and coating materials | Jong-Il Weon, Si Yong Song, Jong-Bae Lee, Sung-Goo Lee, Jae-heung Lee | 2012-11-27 |
| 6582879 | Reactive photo acid-generating agent and heat-resistant photoresist composition with polyamide precursor | Moon-Young Jin, Jong Chan Won, Sang Yeol Choi | 2003-06-24 |
| 6525109 | Process of preparing polycarbonates using microwave | Jae-heung Lee, Young Chan Ko, Il Seok Choi, Cheol-Hyun Kim, Kwang Soo Yoon +1 more | 2003-02-25 |
| 6433184 | Polyamide-imide having head-to-tail backbone | Jae-heung Lee, Young-Taik Hong, Moon-Young Jin, Kyoung Su CHOI, Ho-Jin Park | 2002-08-13 |
| 6423812 | Process of preparing polycarbonates | Young Chan Ko, Il Seok Choi, Cheol-Hyun Kim, Kwang Soo Yoon, Seung Joo Kim +2 more | 2002-07-23 |
| 6232432 | Process for the preparation of polycarbonates | Jae-heung Lee, Sung-Goo Lee, Sang Hyun Park, Young Chan Ko, Il Seok Choi +1 more | 2001-05-15 |
| 6172127 | Preparation of polyimide foam | Jae-heung Lee, Sung-Goo Lee, Mi-Hie Yi, Seung Su Kim | 2001-01-09 |
| 6162893 | Soluble polyimide resin having a dialkyl substituent for a liquid crystal alignment layer, the monomers and manufacturing methods thereof | Mi-Hie Yi, Moon-Young Jin, Jin-Tae Jung, Jae Geun Park, Dae W. Ihm | 2000-12-19 |
| 6057379 | Method of preparing polyimide foam with excellent flexibility properties | Jae-heung Lee, Sung-Goo Lee, Mi-Hie Yi, Seung Su Kim | 2000-05-02 |
| 6054554 | Soluble polyimide resin comprising polyalicyclic structure | Mi-Hie Yi, Wenxi Huang | 2000-04-25 |
| 6046303 | Soluble polyimide resin having alkoxy substituents and the preparation method thereof | Mi-Hie Yi, Moon-Young Jin, Jin-Tae Jung, Jeong-Ghi Koo, Jae Eun Cho | 2000-04-04 |
| 6031067 | Soluble polyimide resin and process of preparation of the same | Mi-Hie Yi, Wenxi Huang | 2000-02-29 |
| 6018055 | Polyarylether containing N-substituted imide groups and process for producing the same | Dong-Hack Suh, Young-Taik Hong, Eun-Young Chung | 2000-01-25 |
| 6013760 | Soluble polyimide resin for liquid crystal alignment layer and process of preparation of the same | Mi-Hie Yi, Moon-Young Jin, Dae W. Ihm, Jae Min Oh | 2000-01-11 |
| 5955568 | Process for preparing polyamideimide resins by direct polymerization | Dong-Hack Suh, Mi-Hie Yi, Young-Taik Hong, Moon-Young Jin | 1999-09-21 |
| 5919942 | Cyclohexane-1,2,4,5-diimide derivative and process for preparing the same | Dong-Hack Suh, Young-Taik Hong, Sang Hyun Park | 1999-07-06 |
| 5824766 | Polyamideamic acid resin prepolymers, high heat resistant polyamideimide foams prepared therefrom, and processes for preparing them | Mi-Hie Yi, Moon-Young Jin, Young-Taik Hong | 1998-10-20 |
| 5693744 | Amorphus polyamides having second order nonlinear optical property, and method for preparing them | Moon-Young Jin, Young-Wun Kim | 1997-12-02 |
| 5569738 | Melt processable etherimideimide/etherimide copolymer | Jong Chan Won, Young-Taik Hong, Sang-Sun Woo, Youn S. Don | 1996-10-29 |
| 5532334 | Process for preparing polyamideimide resins having high molecular weight | Dong-Hack Suh, Mi-Hie Yi, Young-Taik Hong, Jong Chan Won | 1996-07-02 |
| 5521276 | Polyamideimide resins containing isophorone diamine structures | Mi-Hie Yi, Jae-heung Lee, Moon-Young Jin, Young-Taik Hong | 1996-05-28 |
| 5489616 | Process for manufacturing phosphoric acid-type chelate resin as uranyl ion absorbents | In Hwan Park, Jin Chul Jung, Jae-Oh Joo | 1996-02-06 |
| 5457163 | Phosphonic acid chelating resins for uranyl ion adsorption | In Hwan Park, Jin Chul Jung, Jae-Oh Joo | 1995-10-10 |
| 5243010 | Aromatic polyamide containing pendant silyl groups | Mi-Hie Yi | 1993-09-07 |
| 5241037 | Nadimide-terminated polyarylates and cured polyarylate resins | Mi-Hie Yi, Sam Kwon Choi | 1993-08-31 |