Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7113689 | Microelectromechanical systems (MEMS) variable optical attenuator | Yoon Shik Hong, Young Gyu Lee, Sang Kee YOON, Hyun Kee Lee, Suk Kee Hong +2 more | 2006-09-26 |
| 6961488 | Optical switch and method of producing the same | Hyun Kee Lee, Yoon Shik Hong | 2005-11-01 |
| 6901204 | Microelectromechanical system (MEMS) variable optical attenuator | Yoon Shik Hong, Sang Kee YOON, Suk Kee Hong, Young Gyu Lee, Jung-hyun Lee | 2005-05-31 |
| 6833288 | Dicing method for micro electro mechnical system chip | Joon Seok Kang, Sang Kee YOON, Hyun Kee Lee | 2004-12-21 |
| 6816295 | MEMS variable optical attenuator | Jung-hyun Lee, Yoon Shik Hong, Hyun Kee Lee | 2004-11-09 |
| 6775459 | Variable optical attenuator | Yoon Shik Hong, Yong-San Shin, Young Yun Kim, Jong Hyun Lee, Jung-hyun Lee | 2004-08-10 |
| 6718114 | Variable optical attenuator of optical path conversion | Yoon Shik Hong, Hyun Kee Lee, Jung-hyun Lee | 2004-04-06 |
| 6552839 | Optical switch | Yoon Shik Hong, Joon Seok Kang, Sang Kee YOON, Jung-hyun Lee, Hyun Kee Lee | 2003-04-22 |
| 6459845 | Variable optical attenuator | Jung-hyun Lee, Yoon Shik Hong, Hyun Kee Lee | 2002-10-01 |
| 5994803 | Brushless DC motor | — | 1999-11-30 |
| 5925949 | Disc drive motor with means to center a disc and limit its axial movement | Jin Ki Min | 1999-07-20 |
| 5872409 | Bearing system and brushless DC motor using such system | — | 1999-02-16 |