Dennis D. Duffy

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Oklahoma City, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of aligning servo wedges in a disc drive
- Patent number 6,538,837
- Issue date Mar 25, 2003
- Seagate Technology LLC
- Lealon R. McKenzie
- G11 - INFORMATION STORAGE
Information Patent Grant
Constant density servo information in a disc drive
- Patent number 6,118,604
- Issue date Sep 12, 2000
- Seagate Technology, Inc.
- Dennis Daniel Duffy
- G11 - INFORMATION STORAGE
Information Patent Grant
Writing servo information to a disc drive at a constant density
- Patent number 6,084,738
- Issue date Jul 4, 2000
- Seagate Technology, Inc.
- Dennis Daniel Duffy
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disc drive with improved servo system
- Patent number 5,262,907
- Issue date Nov 16, 1993
- Seagate Technology, Inc.
- Dennis D. Duffy
- G11 - INFORMATION STORAGE
Information Patent Grant
Differential slimmer
- Patent number 5,237,464
- Issue date Aug 17, 1993
- Seagate Technology, Inc.
- Robert D. Cronch
- G11 - INFORMATION STORAGE
Information Patent Grant
Differential slimmer
- Patent number 5,237,463
- Issue date Aug 17, 1993
- Seagate Technology, Inc.
- Robert D. Cronch
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for generating an index pulse in a data storage system
- Patent number 5,162,954
- Issue date Nov 10, 1992
- Seagate Technology Inc.
- Jeffrey A. Miller
- G11 - INFORMATION STORAGE