Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12013309 | Anderon meter for cryogenic environment and measuring method for bearing friction torque using the same | Wonil Kwak, Yunseok Ha, Yeong-do LEE, Jeon Kook Lee | 2024-06-18 |
| 11905993 | Turbomachine having hybrid bearing structure including magnetic bearing, permanent magnet, and sleeve journal bearing and method of controlling the same | Jungwan Kim, Yunseok Ha, Byul AN, Wonil Kwak, Yeong-do LEE | 2024-02-20 |
| 11788049 | Cell culture system | Kyung Nam Kim, Chong Myung Kim, Sun Young Kim | 2023-10-17 |
| 11721495 | Electro-thermally actuated mechanical switching device and memory device using same | Jun-Bo Yoon, Pan Kyu Choi, Subon Kim, Suhyun KIM | 2023-08-08 |
| 11525477 | Fractal structure for power-generation of bearing rotating vibration | Wonil Kwak, Bok Seong Choe, Jungwan Kim | 2022-12-13 |
| 11513032 | System of condition monitoring of self power-generated bearing module | Wonil Kwak, Junsang Kong, Jungwan Kim, Yunseok Ha | 2022-11-29 |
| 11456137 | Electrostatic drive switch | Jun-Bo Yoon, Su Bon Kim | 2022-09-27 |
| 11241738 | Metal powder manufacturing apparatus for metal 3D printer | Jungwan Kim, Sena Jeong, Bok Seong Choe, Wonil Kwak, Jaeseung Byun | 2022-02-08 |
| 10309460 | Ball bearing | Bok Seong Choe, Sangmin HAN, Jeon Kook Lee | 2019-06-04 |
| 10247638 | Bearing test apparatus for testing behavior of the bearing | Bok Seong Choe, Wonil Kwak, Jeon Kook Lee, Ou Seok Seo | 2019-04-02 |
| 9829107 | Oil sealing device for a bearing | Eo Jin Kim, Jeon Kook Lee | 2017-11-28 |
| 9714883 | Bearing test apparatus for testing durability of bearing | Bokseong Choe, Jeon Kook Lee, Sol-Ji Ryu, Byoungkuk Lee | 2017-07-25 |
| 9322294 | Oil-free turbocharger assembly | Chang-Ho Kim, Dong-Jin Park | 2016-04-26 |
| 9121450 | Cage for rolling bearing | Chang-Ho Kim, Bok Seong Choe, Sol-Ji Ryu | 2015-09-01 |
| 9004765 | Air foil bearing having pressure dam | Se Na Jeong, Bokseong Choe | 2015-04-14 |
| 8772992 | Airfoil-magnetic hybrid bearing and a control system thereof | Chang-Ho Kim, Seung-Jong Kim, Sang Hwa Lee, Hee Soo Kim | 2014-07-08 |
| 8121551 | GSM mobile terminal and noise suppression method for the same | — | 2012-02-21 |
| 8070873 | Medium temperature coating material for high speed turbomachinery and method of coating same | Chang-Ho Kim, Dong-Jin Park, Jun Hyeon Jo | 2011-12-06 |
| 7615291 | Coating material having heat and abrasion resistance and low friction characteristics | Chang-Ho Kim, Hosung Kong, Hung Gu Han, Jeon Kook Lee, Jun Hyeon Jo +1 more | 2009-11-10 |
| 7521815 | Micro power generating device | Seung-Jong Kim, Chang-Ho Kim, Keun Ryu | 2009-04-21 |
| 7060764 | Method for polymerization and copolymerization of ethylene | Chun-Byung Yang, Sang-Yull Kim, Won Young Kim | 2006-06-13 |
| 6958378 | Method for producing homo-and co-polymers of ethylene | Chun-Byung Yang, Sang-Yull Kim, Weon Lee | 2005-10-25 |
| 6881696 | Catalyst for polymerization and copolymerization of ethylene | Chun-Byung Yang, Ji-Yong Park, Weon Lee | 2005-04-19 |
| 6582125 | Smart foil journal bearing with piezoelectric actuators | Chang-Ho Kim, Nam Soo Lee, Tae Ho Kim | 2003-06-24 |
| 6527446 | Foil journal bearing utilizing semi-active dampers | Chang-Ho Kim, Nam Soo Lee, Tae Ho Kim | 2003-03-04 |