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Joel N. Harrison
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Monte Sereno, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Rotational pivot structure within single reed woodwind ligature system
Patent number
9,940,913
Issue date
Apr 10, 2018
Joel Norval Harrison
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Single reed woodwind ligature system adjusts to fit most mouthpiece...
Patent number
8,940,988
Issue date
Jan 27, 2015
Joel N Harrison
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Mass storage device with network interface
Patent number
6,622,164
Issue date
Sep 16, 2003
Quantum Corp.
Joel N. Harrison
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for storage application programming interface...
Patent number
6,128,717
Issue date
Oct 3, 2000
Quantum Corporation
Joel N. Harrison
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Fixed disk drive mounted to printed circuit board
Patent number
5,379,439
Issue date
Jan 3, 1995
Quantum Corporation
Joel N. Harrison
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data transducer position control system for rotating disk data stor...
Patent number
5,119,254
Issue date
Jun 2, 1992
Quantum Corporation
David A. Brown
G11 - INFORMATION STORAGE
Information
Patent Grant
Head and disk assembly for fixed disk drive
Patent number
4,982,296
Issue date
Jan 1, 1991
Quantum Corporation
David A. Brown
G11 - INFORMATION STORAGE
Information
Patent Grant
Fixed disk drive
Patent number
4,920,434
Issue date
Apr 24, 1990
Quantum Corporation
David A. Brown
G11 - INFORMATION STORAGE
Information
Patent Grant
Data transducer position control system for rotating disk data stor...
Patent number
4,872,074
Issue date
Oct 3, 1989
Quantum Corporation
David A. Brown
G11 - INFORMATION STORAGE
Information
Patent Grant
A method for using a modular unitary disk file subsystem
Patent number
4,860,194
Issue date
Aug 22, 1989
Plus Development Corporation
Joel N. Harrison
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data transducer position control system for rotating disk data stor...
Patent number
4,814,909
Issue date
Mar 21, 1989
Quantum Corporation
David A. Brown
G11 - INFORMATION STORAGE
Information
Patent Grant
Compact polyphase optical position encoder
Patent number
4,703,176
Issue date
Oct 27, 1987
Plus Development Corporation
Peter S. Hahn
G01 - MEASURING TESTING
Information
Patent Grant
Data transducer position control system for rotating disk data stor...
Patent number
4,660,106
Issue date
Apr 21, 1987
Quantum Corporation
Joel N. Harrison
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive having two interactive electromechanical control subsystems
Patent number
4,639,798
Issue date
Jan 27, 1987
Quantum Corporation
Joel N. Harrison
G11 - INFORMATION STORAGE
Information
Patent Grant
Modular unitary disk file subsystem
Patent number
4,639,863
Issue date
Jan 27, 1987
Plus Development Corporation
Joel N. Harrison
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical encoder with digital gain compensation controlling source i...
Patent number
4,593,194
Issue date
Jun 3, 1986
Quantum Corporation
Randolph H. Graham
G01 - MEASURING TESTING
Information
Patent Grant
Data transducer position control system for rotating disk data stor...
Patent number
RE32075
Issue date
Jan 28, 1986
Quantum Corporation
Joel N. Harrison
360 - Dynamic magnetic information storage or retrieval
Information
Patent Grant
Pure torque, limited displacement transducer
Patent number
4,490,635
Issue date
Dec 25, 1984
Quantum Corporation
Joel N. Harrison
G11 - INFORMATION STORAGE
Information
Patent Grant
Data transducer position control system for rotating disk data stor...
Patent number
4,419,701
Issue date
Dec 6, 1983
Quantum Corporation
Joel N. Harrison
G11 - INFORMATION STORAGE
Information
Patent Grant
Band drive actuator
Patent number
4,418,370
Issue date
Nov 29, 1983
Xerox Corporation
Joel N. Harrison
G11 - INFORMATION STORAGE
Information
Patent Grant
Data transducer position control system for rotating disk data stor...
Patent number
4,396,959
Issue date
Aug 2, 1983
Quantum Corporation
Joel N. Harrison
G11 - INFORMATION STORAGE