Sabrina Pui-Wah Matsunaga

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Oak Park, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Verification system for variable printing products
- Patent number 8,520,233
- Issue date Aug 27, 2013
- Xerox Corporation
- Sabrina Pui-Wah Matsunaga
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
System and method to prevent unauthorized copying of a document
- Patent number 8,452,711
- Issue date May 28, 2013
- Xerox Corporation
- Sabrina Pui-Wah Matsunaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
System and method to prevent unauthorized copying of a document
- Publication number 20070244821
- Publication date Oct 18, 2007
- Sabrina Pui-Wah Matsunaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Locating system for items having RFID tags
- Publication number 20070188342
- Publication date Aug 16, 2007
- Xerox Corporation.
- Francisco M. Valeriano
- G06 - COMPUTING CALCULATING COUNTING