Inventor · disambiguated record
Guang-Shang Chang
Also filed as: CHANG GUANG-SHANG
10 granted patents·117 citations·filing 1998–2000
88Inventor score
Top patents by PatentIndex Score
10 records- 0183US6161966AMulti-blade lens-aperture control mechanismUMAX DATA SYSTEMS INC·Filed 1999·Granted Dec 19, 2000·22 cites·7 claims
- 0261US6302597B1Hidden viewfinder for cameraUMAX DATA SYSTEMS INC·Filed 1999·Granted Oct 16, 2001·7 cites·8 claims
- 0359US5907730AMoveable lens apparatus for digital cameraUMAX DATA SYSTEMS INC·Filed 1998·Granted May 25, 1999·25 cites·13 claims
- 0456US5930544ALens movement mechanism for digital cameraUMAX DATA SYSTEMS INC·Filed 1998·Granted Jul 27, 1999·22 cites·22 claims
- 0556US5815759AExtended adjusting mechanism for the lens set of an imaging systemUMAX DATA SYSTEM·Filed 1998·Granted Sep 29, 1998·25 cites·14 claims
- 0650US6408138B1Camera view-correction apparatus for taking picturesUMAX DATA SYSTEMS INC·Filed 2000·Granted Jun 18, 2002·2 cites·17 claims
- 0743US6266090B1Device for controlling a rotation of a lens in a digital cameraUMAX DATA SYSTEMS INC·Filed 1998·Granted Jul 24, 2001·10 cites·1 claims
- 0833US5930543AAperture selection mechanism for cameraUMAX DATA SYSTEMS INC·Filed 1998·Granted Jul 27, 1999·4 cites·6 claims
- 0928US5946515AAperture switching deviceUMAX DATA SYSTEMS INC·Filed 1998·Granted Aug 31, 1999·0 cites·9 claims
- 1027US6433826B1Adjusting mechanism for the lens set of an imaging systemUMAX DATA SYSTEM INC·Filed 1998·Granted Aug 13, 2002·0 cites·19 claims
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