Michael A. O'Brien

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for controlling common mode voltage of a disk...
- Patent number 7,701,654
- Issue date Apr 20, 2010
- Agere Systems Inc.
- Jason A. Christianson
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for protecting magnetoresistive heads from ele...
- Patent number 7,502,207
- Issue date Mar 10, 2009
- Agere Systems Inc.
- Jason A. Christianson
- G11 - INFORMATION STORAGE
Information Patent Grant
Pre-amplifier employing transistors having a diminished breakdown v...
- Patent number 7,019,923
- Issue date Mar 28, 2006
- Agere Systems Inc.
- John D. Leighton
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Disk drive writer with active reflection cancellation
- Patent number 6,879,456
- Issue date Apr 12, 2005
- Agere Systems Inc.
- John D. Leighton
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive writer with capacitive boost
- Patent number 6,813,110
- Issue date Nov 2, 2004
- Agere Systems Inc.
- John D. Leighton
- G11 - INFORMATION STORAGE
Information Patent Grant
Grounding system and detection circuit for fueling
- Patent number 5,159,523
- Issue date Oct 27, 1992
- Cornerstone Fuels, Inc.
- Daniel L. Claassen
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for controlling common mode voltage of a disk...
- Publication number 20070070536
- Publication date Mar 29, 2007
- Jason A. Christianson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method and apparatus for protecting magnetoresistive heads from ele...
- Publication number 20060221489
- Publication date Oct 5, 2006
- Jason A. Christianson
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive writer with active reflection cancellation
- Publication number 20040032682
- Publication date Feb 19, 2004
- Agere Systems, Inc.
- John D. Leighton
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive writer with capacitive boost
- Publication number 20040032684
- Publication date Feb 19, 2004
- Agere Systems Inc.
- John D. Leighton
- G11 - INFORMATION STORAGE
Information Patent Application
Pre-amplifier employing transistors having a diminished breakdown v...
- Publication number 20030234689
- Publication date Dec 25, 2003
- Agere Systems, Inc.
- John D. Leighton
- H03 - BASIC ELECTRONIC CIRCUITRY