Allen A. Chang

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Milpitas, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Disconnect switch circuit to power head retract in hard disk drive...
- Patent number 5,508,874
- Issue date Apr 16, 1996
- Siliconix Incorporated
- Richard K. Williams
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for generating positive and negative supply rails from op...
- Patent number 5,459,654
- Issue date Oct 17, 1995
- Siliconix Incorporated
- Richard K. Williams
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Head-retract circuit for moving media storage apparatus
- Patent number 5,455,496
- Issue date Oct 3, 1995
- Siliconix Incorporated
- Richard K. Williams
- G05 - CONTROLLING REGULATING
Information Patent Grant
Push-pull output stage for driving motors which generates auxiliary...
- Patent number 5,377,094
- Issue date Dec 27, 1994
- Siliconix Incorporated
- Richard K. Williams
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER