P

Inventor

INAJI TOSHIO

JP29 patents
⚠️ This page may combine multiple inventors who share the name “INAJI TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

26 patents
US7265929B2Sep 4, 2007

Method of controlling an actuator, and disk apparatus using the same method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD170 citations99
US5710500AJan 20, 1998

Motor speed control apparatus using phase-advance based estimated disturbance signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations93
US5467004ANov 14, 1995

Motor speed control apparatus for keeping the speed of the motor fixed in the presence of a disturbance torque

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations93
US5182499AJan 26, 1993

Sensorless brushless motor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations93
US5177416AJan 5, 1993

Brushless dc motor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations93
US5144209ASep 1, 1992

Brushless dc motor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD52 citations93
US5130620AJul 14, 1992

Brushless DC motor without a position sensor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations93
US7031099B2Apr 18, 2006

Head positioner and information recording/replaying apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US7019938B2Mar 28, 2006

Head positioning method, and disk apparatus using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations92
US5737483AApr 7, 1998

Motor speed control apparatus for motors

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations92
US5378976AJan 3, 1995

Brushless DC motor without a position sensor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD42 citations92
US5065263ANov 12, 1991

Track following transducer position control system for a disk storage drive system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations92
US4633150ADec 30, 1986

Driving circuit for brushless DC motors

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations92
US4631459ADec 23, 1986

Brushless DC motor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US4999558AMar 12, 1991

Position control system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations91
US4954905ASep 4, 1990

Data transducer position control system for disk storage drive system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations90
US6995945B2Feb 7, 2006

Head positioning system, disk drive apparatus using the same, and head positioning method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations84
US6950274B2Sep 27, 2005

Disk storage apparatus and disk storage apparatus control method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations84
US6950271B2Sep 27, 2005

Disk drive and disk drive control method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations84
US7038877B2May 2, 2006

Head positioning apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6903896B2Jun 7, 2005

Head positioning method, and disk apparatus using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US5376870ADec 27, 1994

Apparatus for driving a brushless DC motor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US6982848B2Jan 3, 2006

Disk apparatus and head positioning method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US4695907ASep 22, 1987

Rotary head deflection apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
US7177106B2Feb 13, 2007

Disk storage apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US7064919B2Jun 20, 2006

Disk storage apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63

MATSUKAWA YOSHIHIKO

1 patent

INAJI TOSHIO

1 patent

NGUYEN KHANG

1 patent