Shan-Wen Chang

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Chang-Hua Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Image-capturing device with synchronous and automatic focusing func...
- Patent number 6,917,757
- Issue date Jul 12, 2005
- Primax Electronics Ltd.
- Shan-Wen Chang
- G02 - OPTICS
Information Patent Grant
Image capturing apparatus with laser-framing viewfinder and laser p...
- Patent number 6,741,809
- Issue date May 25, 2004
- Primax Electronics Ltd.
- Shan-Wen Chang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY