Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7382718 | Transmitting and receiving method for reducing distortion caused by a time-varying channel in an orthogonal frequency division multiplex system | Kyung-Hi Chang, Yun-Hee Kim, Yong-Soo Cho | 2008-06-03 |
| 7068593 | Apparatus and method for synchronizing frequency in orthogonal frequency division multiplexing communication system | Yong-Soo Cho | 2006-06-27 |
| 6916764 | Pt-Ru-M1-M2 quaternary metal catalyst based on Pt-Ru for direct methanol fuel cell | Kyoung-hwan Choi, Seol-ah Lee, Yung-Eun Sung, Jong Ho Choi | 2005-07-12 |
| 6699799 | Method of forming a semiconductor device | Dong-Ho Ahn, Soo-Jin Hong, Jung-Il Lee | 2004-03-02 |
| 6645866 | Method of fabricating a semiconductor device using trench isolation method including hydrogen annealing step | Tai-Su Park, Jung-Woo Park, Won-sang Song | 2003-11-11 |
| 6627514 | Semiconductor device having a Y-shaped isolation layer and simplified method for manufacturing the Y-shaped isolation layer to prevent divot formation | Tai-Su Park, Sung Jin Kim | 2003-09-30 |
| 6573168 | Methods for forming conductive contact body for integrated circuits using dummy dielectric layer | Ji Soo Kim, Chang-Woong Chu, Dong Hyun Kim, Yong-Chul Oh, Hyoung Joon Kim +2 more | 2003-06-03 |
| 6537914 | Integrated circuit device isolation methods using high selectivity chemical-mechanical polishing | Tai-Su Park, Moon-han Park, Han-Sin Lee, Jung-yup Kim, Chang-Ki Hong +1 more | 2003-03-25 |
| 6511888 | Method of fabricating a semiconductor device using trench isolation method including hydrogen annealing step | Tai-Su Park, Jung-Woo Park, Won-sang Song | 2003-01-28 |
| 6506228 | Method of preparing platinum alloy electrode catalyst for direct methanol fuel cell using anhydrous metal chloride | Seol-ah Lee, Boo Kil Kwon, Yung-Eun Sung | 2003-01-14 |
| 6465866 | Trench isolation regions having trench liners with recessed ends | Tai-Su Park, Moon-han Park, Han-Sin Lee | 2002-10-15 |
| 6429107 | Method for forming conductive contact of semiconductor device | Hyoung Joon Kim, Byeong-yun Nam | 2002-08-06 |
| 6331469 | Trench isolation structure, semiconductor device having the same, and trench isolation method | Tai-Su Park, Moon-han Park, Han-Sin Lee | 2001-12-18 |
| 6258726 | Method of forming isolation film for semiconductor devices | Tai-Su Park, Yu-Gyun Shin, Han-Sin Lee | 2001-07-10 |
| 5943400 | Voice mailing system for performing fax mail service and service method therefor | — | 1999-08-24 |