P

Inventor

ARITA HIROSHI

JP50 patents
⚠️ This page may combine multiple inventors who share the name “ARITA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

24 patents
US5563459AOct 8, 1996

Apparatus for controlling opening and closing timings of a switching device in an electric power system

HITACHI LTD112 citations98
US5305174AApr 19, 1994

Method of and device for protecting electrical power system

HITACHI LTD106 citations96
US6477852B2Nov 12, 2002

Heat and electric power supply system and operation method thereof

HITACHI LTD75 citations95
US6768277B2Jul 27, 2004

Gas turbine system and method for controlling the same

HITACHI LTD20 citations93
US7339489B2Mar 4, 2008

Sensor with wireless communication function

HITACHI LTD31 citations92
US5883774AMar 16, 1999

Current limiter

HITACHI LTD29 citations92
US5825162AOct 20, 1998

Electric power flow controller

HITACHI LTD41 citations92
US5467049ANov 14, 1995

Solid-state switch

HITACHI LTD35 citations92
US5699219ADec 16, 1997

Ground fault current limiter and method of limiting ground fault current

HITACHI LTD33 citations89
US7783396B2Aug 24, 2010

Hybrid cruising control system

HITACHI LTD13 citations84
US6684639B2Feb 3, 2004

Combustion turbine power generation system and method of controlling the same

HITACHI LTD14 citations84
US5726843AMar 10, 1998

Current limiting circuit breaker

HITACHI LTD18 citations84
US7805271B2Sep 28, 2010

Evaluation system for amount of emission gases through fuel supply chain

HITACHI LTD15 citations83
US6981360B2Jan 3, 2006

Gas turbine power generator having humidifying and cooling means

HITACHI LTD17 citations83
US10141751B2Nov 27, 2018

Control system for electric storage system

HITACHI LTD8 citations80
US6067217AMay 23, 2000

Current limiter

HITACHI LTD5 citations74
US6782202B2Aug 24, 2004

Optical communication method, optical linking device and optical communication system

HITACHI LTD6 citations73
US6769266B2Aug 3, 2004

Heat and electric power supply system and operation method thereof

HITACHI LTD11 citations73
US6249363B1Jun 19, 2001

Optical communication method, optical linking device and optical communication system

HITACHI LTD9 citations73
US5038082AAug 6, 1991

Vacuum switch apparatus

HITACHI LTD10 citations73
US6525917B1Feb 25, 2003

Power transforming system and method

HITACHI LTD8 citations72
US7808397B2Oct 5, 2010

Sensor with wireless communication function

HITACHI LTD3 citations63
US6834502B2Dec 28, 2004

Combustion turbine power generation system and method of controlling the same

HITACHI LTD4 citations63
US7558483B2Jul 7, 2009

Optical communication method, optical linking device and optical communication system

HITACHI LTD0 citations52

CANON KK

6 patents

NISSAN MOTOR

6 patents

FUJITSU TEN LTD

5 patents

RENESAS TECH CORP

3 patents

ARITA HIROSHI

3 patents

TAKAMURA YUTAKA

1 patent

JAPAN AVIATION ELECTRONICS IND LTD

1 patent

HITACHI CHEMICAL CO LTD

1 patent