Inventor
Sung Cheon Jung
Inventor
Seoul, KR
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus44%
H02KDynamo-electric machines17%
B81BMicrostructural devices or systems, e.g. micromechanical devices11%
F16CShafts11%
B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems6%
G11BInformation storage based on relative movement between record carrier and transducer6%
H02NElectric machines not otherwise provided for6%
PatentTitleYear
7,113,689'Microelectromechanical systems (MEMS) variable optical attenuator'20066,961,488'Optical switch and method of producing the same'20056,901,204'Microelectromechanical system (MEMS) variable optical attenuator'20056,833,288'Dicing method for micro electro mechnical system chip'20046,816,295'MEMS variable optical attenuator'20046,775,459'Variable optical attenuator'20046,718,114'Variable optical attenuator of optical path conversion'20046,552,839'Optical switch'20036,459,845'Variable optical attenuator'20025,994,803'Brushless DC motor'19995,925,949'Disc drive motor with means to center a disc and limit its axial movement'19995,872,409'Bearing system and brushless DC motor using such system'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2006Patents assigned to SAMSUNG ELECTRO MECH (12)· patent assignee history
1999–2004Based in Seoul, KR· patent location history
2004–2006Based in Kyungki-do, KR· patent location history
2004–2005Based in Suwon-si, KR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SAMSUNG ELECTRO MECH | 12 | 1999–2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seoul, KR | 7 | 1999–2004 |
| Kyungki-do, KR | 3 | 2004–2006 |
| Suwon-si, KR | 2 | 2004–2005 |