Yong-hag Choi

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Masan, KR

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Patents Grantslast 30 patents

Information Patent Grant
Zoom lens barrel driving system for camera
- Patent number 6,240,254
- Issue date May 29, 2001
- Samsung Aerospace Industries, Ltd.
- Byung-Jun Mun
- G02 - OPTICS
Information Patent Grant
Photographic printer
- Patent number 5,796,466
- Issue date Aug 18, 1998
- Samsung Aerospace Industries, Ltd.
- Yong-hag Choi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY