Tsutomu Omae

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Failure detection method for electric vehicles and fail-safe contro...
- Patent number 5,357,181
- Issue date Oct 18, 1994
- Hitachi, Ltd.
- Nobuyoshi Mutoh
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Motor-driven power steering apparatus
- Patent number 5,033,565
- Issue date Jul 23, 1991
- Hitachi, Ltd.
- Toshimi Abukawa
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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
Speed detecting apparatus
- Patent number 4,839,834
- Issue date Jun 13, 1989
- Hitachi, Ltd.
- Tsutomu Omae
- G01 - MEASURING TESTING
Information Patent Grant
Speed control apparatus for motor
- Patent number 4,814,678
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Tsutomu Omae
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Load current detecting device for pulse width modulation inverter
- Patent number 4,772,996
- Issue date Sep 20, 1988
- Hitachi, Ltd.
- Hiroyuki Hanei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power steering apparatus
- Patent number 4,753,309
- Issue date Jun 28, 1988
- Hitachi, Ltd.
- Katsuji Marumoto
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Digital servo-control system
- Patent number 4,712,052
- Issue date Dec 8, 1987
- Hitachi, Ltd.
- Tsutomu Omae
- G05 - CONTROLLING REGULATING
Information Patent Grant
Chopper controller for a D.C. motor
- Patent number 4,580,083
- Issue date Apr 1, 1986
- Hitachi, Ltd.
- Tsutomu Omae
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling load current
- Patent number 4,468,724
- Issue date Aug 28, 1984
- Hitachi, Ltd.
- Tsutomu Omae
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electromobile control device
- Patent number 4,366,420
- Issue date Dec 28, 1982
- Hitachi, Ltd.
- Tsutomu Omae
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling firing phases of thyristors
- Patent number 4,337,509
- Issue date Jun 29, 1982
- Hitachi, Ltd.
- Tsutomu Omae
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and system for inspection of inside of nuclear reactor vessel
- Patent number 4,311,556
- Issue date Jan 19, 1982
- Hitachi, Ltd.
- Taro Iwamoto
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Controller for power converter
- Patent number 4,249,236
- Issue date Feb 3, 1981
- Hitachi, Ltd.
- Tsutomu Omae
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit for use in control of current supply for electric m...
- Patent number 4,211,961
- Issue date Jul 8, 1980
- Hitachi, Ltd.
- Katsuji Marumoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC Chopper device
- Patent number 4,207,478
- Issue date Jun 10, 1980
- Hitachi, Ltd.
- Katsuji Marumoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for an automatic pipe welder
- Patent number 4,163,886
- Issue date Aug 7, 1979
- Hitachi, Ltd.
- Tsutomu Omae
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for controlling an automatic pipe welder
- Patent number 4,144,992
- Issue date Mar 20, 1979
- Hitachi, Ltd.
- Tsutomu Omae
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Tsutomu Omae

Person

Patents Grantslast 30 patents

Failure detection method for electric vehicles and fail-safe contro...

Motor-driven power steering apparatus

Motor-driven power steering apparatus

Speed detecting apparatus

Speed control apparatus for motor

Load current detecting device for pulse width modulation inverter

Electric power steering apparatus

Digital servo-control system

Chopper controller for a D.C. motor

Method and apparatus for controlling load current

Electromobile control device

Method and apparatus for controlling firing phases of thyristors

Method and system for inspection of inside of nuclear reactor vessel

Controller for power converter

Control circuit for use in control of current supply for electric m...

DC Chopper device

Control apparatus for an automatic pipe welder

Method for controlling an automatic pipe welder