Hirohisa Yamamura

Person

Hitachioota, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Power inverter
- Patent number 6,414,867
- Issue date Jul 2, 2002
- Hitachi, Ltd.
- Osamu Suzuki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device
- Patent number 6,410,978
- Issue date Jun 25, 2002
- Hitachi, Ltd.
- Akio Yasukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wire bonding method and apparatus and semiconductor device
- Patent number 6,271,601
- Issue date Aug 7, 2001
- Hitachi, Ltd.
- Noriaki Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inverter device with cooling arrangement therefor
- Patent number 6,166,937
- Issue date Dec 26, 2000
- Hitachi Ltd.
- Hirohisa Yamamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power storage device and power converter using same
- Patent number 6,021,040
- Issue date Feb 1, 2000
- Hitachi, Ltd.
- Osamu Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device
- Patent number 5,793,106
- Issue date Aug 11, 1998
- Hitachi, Ltd.
- Akio Yasukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Controller for electric vehicle
- Patent number 5,481,460
- Issue date Jan 2, 1996
- Hitachi, Ltd.
- Ryoso Masaki
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control system for electric vehicle
- Patent number 5,345,155
- Issue date Sep 6, 1994
- Hitachi, Ltd.
- Ryoso Masaki
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electric vehicle control device
- Patent number 5,309,073
- Issue date May 3, 1994
- Hitachi, Ltd.
- Satoru Kaneko
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control apparatus for induction motor
- Patent number 5,304,912
- Issue date Apr 19, 1994
- Hitachi, Ltd.
- Kenzo Kajiwara
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method and system for controlling electric loads with high reliability
- Patent number 5,270,578
- Issue date Dec 14, 1993
- Hitachi, Ltd.
- Hirohisa Yamamura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor-driven power steering apparatus
- Patent number 4,960,178
- Issue date Oct 2, 1990
- Hitachi, Ltd.
- Toshimi Abukawa
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Electric power steering apparatus for vehicle
- Patent number 4,926,960
- Issue date May 22, 1990
- Hitachi, Ltd.
- Hisatugu Ishikura
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Torque detecting apparatus
- Patent number 4,874,053
- Issue date Oct 17, 1989
- Hitachi, Ltd.
- Hiroshi Kimura
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle height control apparatus responsive to power steering opera...
- Patent number 4,865,148
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Katsuji Marumoto
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electronic instrument panel
- Patent number 4,752,771
- Issue date Jun 21, 1988
- Hitachi, Ltd.
- Kouzou Katogi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multi-color liquid crystal display system
- Patent number 4,736,198
- Issue date Apr 5, 1988
- Hitachi, Ltd.
- Keiichi Tokuyama
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal display device
- Patent number 4,708,440
- Issue date Nov 24, 1987
- Hitachi, Ltd.
- Masaru Kugo
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electronic odometer
- Patent number 4,665,497
- Issue date May 12, 1987
- Hitachi, Ltd.
- Hirohisa Yamamura
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20020050403
- Publication date May 2, 2002
- AKIO YASUKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Wire bonding method and apparatus, and semiconductor device
- Publication number 20010042925
- Publication date Nov 22, 2001
- Noriaki Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Power inverter
- Publication number 20010014029
- Publication date Aug 16, 2001
- Osamu Suzuki
- H01 - BASIC ELECTRIC ELEMENTS

Hirohisa Yamamura

Person

Patents Grantslast 30 patents

Power inverter

Semiconductor device

Wire bonding method and apparatus and semiconductor device

Inverter device with cooling arrangement therefor

Power storage device and power converter using same

Semiconductor device

Controller for electric vehicle

Control system for electric vehicle

Electric vehicle control device

Control apparatus for induction motor

Method and system for controlling electric loads with high reliability

Motor-driven power steering apparatus

Electric power steering apparatus for vehicle

Torque detecting apparatus

Vehicle height control apparatus responsive to power steering opera...

Electronic instrument panel

Multi-color liquid crystal display system

Liquid crystal display device

Electronic odometer

Patents Applicationslast 30 patents

SEMICONDUCTOR DEVICE

Wire bonding method and apparatus, and semiconductor device

Power inverter