Inventor
FREES GREGORY MICHAEL
US12 patents
⚠️ This page may combine multiple inventors who share the name “FREES GREGORY MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
8 patentsUS6188191B1Feb 13, 2001
Servo system responsive to temperature changes
IBM103 citations97
US6178059B1Jan 23, 2001
Method for writing servo information on a magnetic recording disk
IBM44 citations92
US6122125ASep 19, 2000
Head selectable servo notch filter and method for improving servo system performance
IBM19 citations92
US6522493B1Feb 18, 2003
Position error signal linearization using an auxiliary discontinuity removal routine
IBM34 citations90
US6429995B1Aug 6, 2002
Position error signal calibration using measured bursts
IBM47 citations90
US5905608AMay 18, 1999
Dynamically tuned outer arms for improved rotary actuator performance
IBM42 citations90
US6577463B1Jun 10, 2003
Tangential misalignment precompensation in a direct access storage device
IBM13 citations84
US6567231B1May 20, 2003
Vibration mode compensation for disk drive
IBM6 citations62
HITACHI GLOBAL STORAGE TECH
4 patentsUS7251100B1Jul 31, 2007
Mounting interface for a spindle motor
HITACHI GLOBAL STORAGE TECH11 citations81
US7411760B2Aug 12, 2008
System and method for correcting for head tilt in HDD
HITACHI GLOBAL STORAGE TECH2 citations59
US7133235B2Nov 7, 2006
System and method for correcting for head tilt in HDD
HITACHI GLOBAL STORAGE TECH0 citations49
US7009795B2Mar 7, 2006
System and method for correcting for head tilt in HDD
HITACHI GLOBAL STORAGE TECH0 citations49