Inventor
SAKURAI TETSUJI
JP9 patents
Patents
9 patentsUS5627441AMay 6, 1997
Apparatus for controlling motor drive and method for controlling thereof
TOSHIBA KK33 citations92
US5327052AJul 5, 1994
Method and apparatus for controlling brushless DC motor
TOSHIBA KK28 citations92
US5206567AApr 27, 1993
Apparatus for reliably activating sensorless and brushless DC motor
TOSHIBA KK53 citations91
US5585701ADec 17, 1996
Current mirror circuit constituted by FET (field effect transistor) and control system using the same
TOSHIBA KK30 citations88
US5432414AJul 11, 1995
Sensorless spindle motor control apparatus
TOSHIBA KK16 citations73
US5373403ADec 13, 1994
Method and apparatus for automatic gain control amplifier adjustment for a magnetic medium
TOSHIBA KK10 citations73
US5146374ASep 8, 1992
Method and apparatus for determining track position of a head on a recording medium
TOSHIBA KK7 citations72
US5051851ASep 24, 1991
Method and apparatus for positioning head on the basis of premeasured amount of displacement
TOSHIBA KK13 citations72
US4907107AMar 6, 1990
Method for positioning a magnetic head in accordance with digital peak values corresponding to servo data and magnetic disk positioning apparatus for the same
TOSHIBA KK16 citations72