Inventor
NAKAGAWA YUZO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA YUZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
8 patentsUS6549349B2Apr 15, 2003
Adaptive vibration control for servo systems in data storage devices
IBM44 citations92
US6122139ASep 19, 2000
Disk drive rotary actuator system including synchronous counter torque generator
IBM39 citations92
US5043834AAug 27, 1991
Actuator locking system of disk unit
IBM26 citations90
US4894599AJan 16, 1990
deadbeat control of disk drive actuator
IBM39 citations87
US6351343B1Feb 26, 2002
Arrangement structure of the printed circuit board and the interface cable connector of a magnetic disk drive
IBM19 citations84
US6424476B1Jul 23, 2002
Method and apparatus for controlling read and write operations in a storage device
IBM8 citations73
US5812338ASep 22, 1998
Method and apparatus for indicating start of servo information on a recording medium
IBM9 citations73
US5872677AFeb 16, 1999
Magnetic head position detecting method and magnetic disk apparatus
IBM4 citations63
HITACHI GLOBAL STORAGE TECH
4 patentsUS7724457B2May 25, 2010
Method and system for time-shift based rotational vibration sensing in disk drives
HITACHI GLOBAL STORAGE TECH8 citations84
US6643087B1Nov 4, 2003
Disk drive with improved retract circuit and method
HITACHI GLOBAL STORAGE TECH14 citations81
US6947243B2Sep 20, 2005
Method and system for time-shift based rotational vibration sensing in disk drives
HITACHI GLOBAL STORAGE TECH9 citations74
US6914745B2Jul 5, 2005
Head movement controlling based on servo generated speed control values
HITACHI GLOBAL STORAGE TECH10 citations74