Inventor · disambiguated record
Randolph H. Graham
Also filed as: GRAHAM RANDOLPH H
9 granted patents·439 citations·filing 1983–1991
91Inventor score
Top patents by PatentIndex Score
9 records- 0198US4639863AModular unitary disk file subsystemPLUS DEV CORP·Filed 1985·Granted Jan 27, 1987·168 cites·20 claims
- 0291US4593194AOptical encoder with digital gain compensation controlling source intensityQUANTUM CORP·Filed 1983·Granted Jun 3, 1986·48 cites·16 claims
- 0384US4639798ADisk drive having two interactive electromechanical control subsystemsQUANTUM CORP·Filed 1985·Granted Jan 27, 1987·40 cites·10 claims
- 0482US4914530AMedia defect management within disk drive sector formatPLUS DEV CORP·Filed 1987·Granted Apr 3, 1990·31 cites·16 claims
- 0578US4860194AA method for using a modular unitary disk file subsystemPLUS DEV CORP·Filed 1988·Granted Aug 22, 1989·24 cites·10 claims
- 0673US4647769AOptical encoder having controllable lead-lag phase trim sensitivityQUANTUM CORP·Filed 1984·Granted Mar 3, 1987·21 cites·6 claims
- 0766US4882671AMicroprocessor controlled rigid disk file subsystemPLUS DEV CORP·Filed 1989·Granted Nov 21, 1989·38 cites·17 claims
- 0862US4819153AMicroprocessor controlled rigid disk file subsystemPLUS DEV CORP·Filed 1985·Granted Apr 4, 1989·32 cites·38 claims
- 0959US5379439AFixed disk drive mounted to printed circuit boardQUANTUM CORP·Filed 1991·Granted Jan 3, 1995·37 cites·9 claims
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