Randolph H. Graham

Person

San Jose, CA, US

People

Patents Grantslast 30 patents

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
Media defect management within disk drive sector format
- Patent number 4,914,530
- Issue date Apr 3, 1990
- Plus Development Corporation
- Randolph H. Graham
- G11 - INFORMATION STORAGE
Information Patent Grant
Microprocessor controlled rigid disk file subsystem
- Patent number 4,882,671
- Issue date Nov 21, 1989
- Plus Development Corporation
- Randolph H. Graham
- G06 - COMPUTING CALCULATING COUNTING
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
Microprocessor controlled rigid disk file subsystem
- Patent number 4,819,153
- Issue date Apr 4, 1989
- Plus Development Corporation
- Randolph H. Graham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical encoder having controllable lead-lag phase trim sensitivity
- Patent number 4,647,769
- Issue date Mar 3, 1987
- Quantum Corporation
- Thomas R. Stone
- G01 - MEASURING TESTING
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

Randolph H. Graham

Person

Patents Grantslast 30 patents

Fixed disk drive mounted to printed circuit board

Media defect management within disk drive sector format

Microprocessor controlled rigid disk file subsystem

A method for using a modular unitary disk file subsystem

Microprocessor controlled rigid disk file subsystem

Optical encoder having controllable lead-lag phase trim sensitivity

Disk drive having two interactive electromechanical control subsystems

Modular unitary disk file subsystem

Optical encoder with digital gain compensation controlling source i...