Kevin Yang

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Hsinchu, TW

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Patents Grantslast 30 patents

Information Patent Grant
Multiple optical lens system with auto-focus calibration
- Patent number 5,793,482
- Issue date Aug 11, 1998
- Umax Data Systems Inc.
- Wen-Tso Tseng
- G02 - OPTICS
Information Patent Grant
Lens switching apparatus for dual-lens optical scanner
- Patent number 5,712,720
- Issue date Jan 27, 1998
- Umax Data Systems Inc.
- Henry Peng
- G02 - OPTICS
Information Patent Grant
Multi-lens changing mechanism for use in optical scanners
- Patent number 5,552,939
- Issue date Sep 3, 1996
- Umax Data Systems Inc.
- Kou-Lung Tseng
- G02 - OPTICS