P

Inventor

TAKAHASHI TADASHI

JP178 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI TADASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

16 patents
US5768117AJun 16, 1998

Power supply system for supplying electric power to a load through plural converters

HITACHI LTD167 citations99
US5239490AAug 24, 1993

Device for detecting rotation of rotary shaft and rotation controlling apparatus using the same

HITACHI LTD126 citations98
US5561366AOct 1, 1996

Current sensor system and detection method comprising magetoresistance element, biasing conductor and current measurement conductor on insulating substrate

HITACHI LTD85 citations96
US4874053AOct 17, 1989

Torque detecting apparatus

HITACHI LTD118 citations96
US4818939AApr 4, 1989

Apparatus for magnetically detecting position or speed or moving body utilizing bridge circuit with series connected MR elements

HITACHI LTD62 citations96
US4599561AJul 8, 1986

Device for detecting the relative and absolute position of a moving body

HITACHI LTD73 citations96
US4558265ADec 10, 1985

Method and apparatus for position control of an electric motor

HITACHI LTD93 citations96
US4473786ASep 25, 1984

Method for controlling angular position and apparatus therefor

HITACHI LTD59 citations96
US6262561B1Jul 17, 2001

Battery system and electric vehicle using the battery system

HITACHI LTD64 citations95
US7733859B2Jun 8, 2010

Apparatus and method for packet forwarding in layer 2 network

HITACHI LTD25 citations92
US6381152B1Apr 30, 2002

Method of driving semiconductor switching device in non-saturated state and power supply apparatus containing such a switching device

HITACHI LTD32 citations92
US6002220ADec 14, 1999

Electric power storage air-conditioning system

HITACHI LTD26 citations92
US5638264AJun 10, 1997

Parallelized power supply system providing uninterrupted operation

HITACHI LTD40 citations92
US5559682ASep 24, 1996

Multi-output DC-DC convertor

HITACHI LTD30 citations92
US5453972ASep 26, 1995

Optical disk apparatus

HITACHI LTD34 citations92
US5432644AJul 11, 1995

Disk drive unit having motor components in a compact arrangement

HITACHI LTD48 citations92

ASAHI OPTICAL CO LTD

10 patents

PENTAX CORP

8 patents

CANON KK

8 patents

FUJITSU LTD

2 patents

MITSUBISHI PETROCHEMICAL CO

2 patents

HOYA CORP

1 patent

NIDEC READ CORP

1 patent

JAPAN POLYCHEM CORP

1 patent

SHINETSU CHEMICAL CO

1 patent

Showing the top 50 of 178 patents by PatentIndex Score.