Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11307107 | Power transmission apparatus capable of measuring torque and power generation apparatus using the same | Han Jong Ju, Sung Nam Oh, Hyun Soo Park | 2022-04-19 |
| 10500442 | Actuator and exercise equipment using same | Sung Nam Oh, Han Jong Ju, Hyun Soo Park | 2019-12-10 |
| 7446922 | Interdigitating diffractive light modulator | Seung-Do An, Seung Heon Han, Hyun Ju Yi | 2008-11-04 |
| 7289258 | Light modulator having variable blaze diffraction grating | Seung Hee Suh, Min-Suk Oh, Ohk Kun Lim, Seung Heon Han | 2007-10-30 |
| 7215869 | Cantilever-type PLC optical attenuator and manufacturing method thereof | Sung Jun Lee, Ro Woon Lee, Jong Sam Kim | 2007-05-08 |
| 7209276 | Fishbone diffraction-type light modulator | Seung-Do An, Seung Heon Han, Hyun Ju Yi | 2007-04-24 |
| 7133184 | Variable grating diffractive light modulator | Dong-Ho Shin, Jong-Hyeong Song, Jong Su Yi, Yurlov Victor | 2006-11-07 |
| 7129617 | Rotary-type comb-drive actuator and variable optical attenuator using the same | — | 2006-10-31 |
| 7113689 | Microelectromechanical systems (MEMS) variable optical attenuator | Young Gyu Lee, Sung Cheon Jung, Sang Kee YOON, Hyun Kee Lee, Suk Kee Hong +2 more | 2006-09-26 |
| 7099064 | Electrostatic-type variable diffractive light modulator and manufacturing method thereof | Dong-Ho Shin, Jong-Hyeong Song, Yoon-Joon Choi, Yurlov Victor | 2006-08-29 |
| 7042625 | Light modulator having digital micro blaze diffraction grating | Dong-Ho Shin, Seung Heon Han, Yoon-Joon Choi | 2006-05-09 |
| 6961488 | Optical switch and method of producing the same | Hyun Kee Lee, Sung Cheon Jung | 2005-11-01 |
| 6901204 | Microelectromechanical system (MEMS) variable optical attenuator | Sang Kee YOON, Suk Kee Hong, Young Gyu Lee, Sung Cheon Jung, Jung-hyun Lee | 2005-05-31 |
| 6816295 | MEMS variable optical attenuator | Jung-hyun Lee, Sung Cheon Jung, Hyun Kee Lee | 2004-11-09 |
| 6775459 | Variable optical attenuator | Yong-San Shin, Young Yun Kim, Jong Hyun Lee, Sung Cheon Jung, Jung-hyun Lee | 2004-08-10 |
| 6718114 | Variable optical attenuator of optical path conversion | Sung Cheon Jung, Hyun Kee Lee, Jung-hyun Lee | 2004-04-06 |
| 6552839 | Optical switch | Joon Seok Kang, Sang Kee YOON, Sung Cheon Jung, Jung-hyun Lee, Hyun Kee Lee | 2003-04-22 |
| 6459845 | Variable optical attenuator | Jung-hyun Lee, Hyun Kee Lee, Sung Cheon Jung | 2002-10-01 |