Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7436457 | Analog/digital signal processor and analog/digital signal processing method | Noh-byung Park | 2008-10-14 |
| 6630061 | Apparatus for generating a mixture gas of oxygen and hydrogen | Yung-Kil Jun, Jung-Hi Kim | 2003-10-07 |
| 6525109 | Process of preparing polycarbonates using microwave | Kil-Yeong Choi, Young Chan Ko, Il Seok Choi, Cheol-Hyun Kim, Kwang Soo Yoon +1 more | 2003-02-25 |
| 6497372 | Automatic temperature control valve | Yung-Kil Jun, Jung-Hi Kim | 2002-12-24 |
| 6433184 | Polyamide-imide having head-to-tail backbone | Kil-Yeong Choi, 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 | Kil-Yeong Choi, Sung-Goo Lee, Sang Hyun Park, Young Chan Ko, Il Seok Choi +1 more | 2001-05-15 |
| 6172127 | Preparation of polyimide foam | Kil-Yeong Choi, Sung-Goo Lee, Mi-Hie Yi, Seung Su Kim | 2001-01-09 |
| 6057379 | Method of preparing polyimide foam with excellent flexibility properties | Kil-Yeong Choi, Sung-Goo Lee, Mi-Hie Yi, Seung Su Kim | 2000-05-02 |
| 5962287 | Process for producing erythritol using mutant Trichosporonoides | Seung-Hyun Suh, Dae Chul Kim, Young-Je Cho, Yeang Joong Jeon | 1999-10-05 |
| 5939311 | Mutant trichosporonoides and a process for producing erythritol using the said microorganism | Seung-Hyun Suh, Dae Chul Kim, Young-Je Cho, Yeang Joong Jeon | 1999-08-17 |
| 5521276 | Polyamideimide resins containing isophorone diamine structures | Kil-Yeong Choi, Mi-Hie Yi, Moon-Young Jin, Young-Taik Hong | 1996-05-28 |