Inventor
OKAWA YOSHIHISA
JP4 patents
Patents
4 patentsUS5053899AOct 1, 1991
Exact position control of a relative position between a magnetic head and a recording medium
NEC CORP18 citations69
US5023732AJun 11, 1991
Magnetic disk apparatus having a circuit for detecting the position of servo information recorded on a magnetic disk
NEC CORP2 citations61
US4841384AJun 20, 1989
Servo protection circuit for disk drive
NEC CORP5 citations60
US6064537AMay 16, 2000
Disk drive with fault detector for erase heads
NEC CORP2 citations57