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Zhan Duan
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San Jose, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Method and apparatus for a pulse width modulated DC-DC converter
Patent number
7,388,358
Issue date
Jun 17, 2008
Winbond Electronics Corporation
Zhan Duan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Variable impedance network for an integrated circuit potentiometer
Patent number
6,882,136
Issue date
Apr 19, 2005
Winbond Electronics Corporation
Hagop A. Nazarian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Variable impedance network for an integrated circuit potentiometer
Patent number
6,788,042
Issue date
Sep 7, 2004
Winbond Electronics Corporation
Hagop A. Nazarian
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
Method and apparatus for a pulse width modulated DC-DC converter
Publication number
20070268009
Publication date
Nov 22, 2007
Winbond Electronics Corporation
Zhan Duan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Variable impedance network for an integrated circuit potentiometer
Publication number
20040217751
Publication date
Nov 4, 2004
Hagop A. Nazarian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Variable impedance network for an integrated circuit potentiometer
Publication number
20030111992
Publication date
Jun 19, 2003
Hagop A. Nazarian
H03 - BASIC ELECTRONIC CIRCUITRY