Inventor
GRAHAM RANDOLPH H
US9 patents
⚠️ This page may combine multiple inventors who share the name “GRAHAM RANDOLPH H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PLUS DEV CORP
5 patentsUS4639863AJan 27, 1987
Modular unitary disk file subsystem
PLUS DEV CORP168 citations98
US4860194AAug 22, 1989
A method for using a modular unitary disk file subsystem
PLUS DEV CORP24 citations92
US4882671ANov 21, 1989
Microprocessor controlled rigid disk file subsystem
PLUS DEV CORP38 citations91
US4819153AApr 4, 1989
Microprocessor controlled rigid disk file subsystem
PLUS DEV CORP32 citations91
US4914530AApr 3, 1990
Media defect management within disk drive sector format
PLUS DEV CORP31 citations90
QUANTUM CORP
4 patentsUS5379439AJan 3, 1995
Fixed disk drive mounted to printed circuit board
QUANTUM CORP37 citations92
US4593194AJun 3, 1986
Optical encoder with digital gain compensation controlling source intensity
QUANTUM CORP48 citations92
US4639798AJan 27, 1987
Disk drive having two interactive electromechanical control subsystems
QUANTUM CORP40 citations86
US4647769AMar 3, 1987
Optical encoder having controllable lead-lag phase trim sensitivity
QUANTUM CORP21 citations81