John Jeffrey Stephenson

Person

Rochester, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Unconstrained equalization method and apparatus with gain and timin...
- Patent number 6,636,562
- Issue date Oct 21, 2003
- Hitachi Global Storage Technologies Netherlands B.V.
- Richard Leo Galbraith
- G11 - INFORMATION STORAGE
Information Patent Grant
Equalization method and apparatus with gain adjustment for direct a...
- Patent number 6,532,259
- Issue date Mar 11, 2003
- International Business Machines Corporation
- Gregory Scott Bush
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-track density direct access storage device
- Patent number 6,393,511
- Issue date May 21, 2002
- International Business Machines Corporation
- David William Albrecht
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for reducing track switch latency in a disk drive
- Patent number 6,307,705
- Issue date Oct 23, 2001
- Clark Alan Anderson
- G11 - INFORMATION STORAGE
Information Patent Grant
Self contained equalization method and apparatus
- Patent number 6,222,879
- Issue date Apr 24, 2001
- International Business Machines Corporation
- Roy D. Cideciyan
- G11 - INFORMATION STORAGE
Information Patent Grant
Direct access storage device (DASD) with a variable spindle rotatio...
- Patent number 6,104,566
- Issue date Aug 15, 2000
- International Business Machines Corporation
- John Jeffrey Stephenson
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-track density direct access storage device
- Patent number 5,999,351
- Issue date Dec 7, 1999
- International Business Machines Corporation
- David William Albrecht
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for moving a disk drive actuator away from a m...
- Patent number 5,754,357
- Issue date May 19, 1998
- International Business Machines Corporation
- Todd Barry Anderson
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for positioning transducers to correct for rea...
- Patent number 5,682,274
- Issue date Oct 28, 1997
- International Business Machines Corporation
- Dana Henry Brown
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for moving a disk drive actuator away from a m...
- Patent number 5,485,323
- Issue date Jan 16, 1996
- International Business Machines Corporation
- Todd B. Anderson
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for actuator control for direct access storage de...
- Patent number 5,287,046
- Issue date Feb 15, 1994
- International Business Machines Corporation
- Gary D. Carpenter
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive servo control
- Patent number 5,241,433
- Issue date Aug 31, 1993
- International Business Machines Corporation
- Todd B. Anderson
- G11 - INFORMATION STORAGE
Information Patent Grant
Transducer head skew arrangement for disk drive system
- Patent number 5,193,036
- Issue date Mar 9, 1993
- International Business Machines Corporation
- Martin R. Green
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for performing a seek
- Patent number 5,119,250
- Issue date Jun 2, 1992
- International Business Machines Corporation
- Martin R. Green
- G11 - INFORMATION STORAGE

John Jeffrey Stephenson

Person

Patents Grantslast 30 patents

Unconstrained equalization method and apparatus with gain and timin...

Equalization method and apparatus with gain adjustment for direct a...

Multi-track density direct access storage device

Method and apparatus for reducing track switch latency in a disk drive

Self contained equalization method and apparatus

Direct access storage device (DASD) with a variable spindle rotatio...

Multi-track density direct access storage device

Method and apparatus for moving a disk drive actuator away from a m...

Method and apparatus for positioning transducers to correct for rea...

Method and apparatus for moving a disk drive actuator away from a m...

Method and system for actuator control for direct access storage de...

Disk drive servo control

Transducer head skew arrangement for disk drive system

Method and apparatus for performing a seek