RG

Randolph H. Graham

PD Plus Development: 5 patents #1 of 15Top 7%
QU Quantum: 4 patents #101 of 703Top 15%
Overall (All Time): #591,175 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5379439 Fixed disk drive mounted to printed circuit board Joel N. Harrison, William G. Moon 1995-01-03
4914530 Media defect management within disk drive sector format Dennis W. Hollenbeck 1990-04-03
4882671 Microprocessor controlled rigid disk file subsystem Bruce R. Peterson, Richard J. Blackborow 1989-11-21
4860194 A method for using a modular unitary disk file subsystem Joel N. Harrison, William G. Moon 1989-08-22
4819153 Microprocessor controlled rigid disk file subsystem Bruce R. Peterson, Richard J. Blackborow 1989-04-04
4647769 Optical encoder having controllable lead-lag phase trim sensitivity Thomas R. Stone 1987-03-03
4639798 Disk drive having two interactive electromechanical control subsystems Joel N. Harrison, Vincent Anthony Condito, Brian Nixon, Richard C. Simonsen 1987-01-27
4639863 Modular unitary disk file subsystem Joel N. Harrison, William G. Moon 1987-01-27
4593194 Optical encoder with digital gain compensation controlling source intensity Joel N. Harrison 1986-06-03