Shigetoshi Okamatsu

Person

Katsuta, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for driving an induction motor
- Patent number 7,906,933
- Issue date Mar 15, 2011
- Hitachi, Ltd.
- Daisuke Tan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power converter suppressing output voltage variation due t...
- Patent number 7,869,232
- Issue date Jan 11, 2011
- Hitachi, Ltd.
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor driving system and motor driving method
- Patent number 7,710,053
- Issue date May 4, 2010
- Hitachi, Ltd.
- Daisuke Tan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Controller of AC machine
- Patent number 6,646,896
- Issue date Nov 11, 2003
- Hitachi, Ltd.
- Yoshitoshi Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for calculating inertia moment and driver for electric motor
- Patent number 6,611,125
- Issue date Aug 26, 2003
- Hitachi, Ltd.
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for induction motor driven electric car
- Patent number 4,825,131
- Issue date Apr 25, 1989
- Hitachi, Ltd.
- Yoshio Nozaki
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control system for power converter
- Patent number 4,675,799
- Issue date Jun 23, 1987
- Hitachi, Ltd.
- Masato Suzuki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Guard system for inverter apparatus
- Patent number 4,672,525
- Issue date Jun 9, 1987
- Hitachi, Ltd.
- Akira Horie
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control of induction motor using PWM inverter
- Patent number 4,490,666
- Issue date Dec 25, 1984
- Hitachi, Ltd.
- Tokunosuke Tanamachi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Induction motor control system and method
- Patent number 4,338,558
- Issue date Jul 6, 1982
- Hitachi, Ltd.
- Shigetoshi Okamatsu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control system for electric motor vehicle
- Patent number 4,335,337
- Issue date Jun 15, 1982
- Hitachi, Ltd.
- Shigetoshi Okamatsu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control apparatus for electric car
- Patent number 4,327,313
- Issue date Apr 27, 1982
- Hitachi, Ltd.
- Takashi Tsuboi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control system for induction motor-driven car
- Patent number 4,315,203
- Issue date Feb 9, 1982
- Hitachi, Ltd.
- Masahiko Ibamoto
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
MOTOR DRIVING SYSTEM AND MOTOR DRIVING METHOD
- Publication number 20080265832
- Publication date Oct 30, 2008
- Hitachi, Ltd.
- Daisuke Tan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRIC POWER CONVERTER APPARATUS
- Publication number 20080088291
- Publication date Apr 17, 2008
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
APPARATUS AND METHOD FOR DRIVING AN INDUCTION MOTOR
- Publication number 20080007196
- Publication date Jan 10, 2008
- Daisuke Tan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Controller of AC machine
- Publication number 20030043610
- Publication date Mar 6, 2003
- Yoshitoshi Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Method for calculating inertia moment and driver for electric motor
- Publication number 20020097018
- Publication date Jul 25, 2002
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Shigetoshi Okamatsu

Person

Patents Grantslast 30 patents

Apparatus and method for driving an induction motor

Electric power converter suppressing output voltage variation due t...

Motor driving system and motor driving method

Controller of AC machine

Method for calculating inertia moment and driver for electric motor

Control system for induction motor driven electric car

Control system for power converter

Guard system for inverter apparatus

Control of induction motor using PWM inverter

Induction motor control system and method

Control system for electric motor vehicle

Control apparatus for electric car

Control system for induction motor-driven car

Patents Applicationslast 30 patents

MOTOR DRIVING SYSTEM AND MOTOR DRIVING METHOD

ELECTRIC POWER CONVERTER APPARATUS

APPARATUS AND METHOD FOR DRIVING AN INDUCTION MOTOR

Controller of AC machine

Method for calculating inertia moment and driver for electric motor