Hidetoshi Umida

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Gate drive circuit
- Patent number 10,763,848
- Issue date Sep 1, 2020
- Fuji Electric Co., Ltd.
- Sho Takano
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Inverter that adjusts voltage command values and control method of...
- Patent number 10,700,630
- Issue date Jun 30, 2020
- Fuji Electric Co., Ltd.
- Akio Toba
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Inverter that adjusts voltage command values and control method of...
- Patent number 10,651,776
- Issue date May 12, 2020
- Fuji Electric Co., Ltd.
- Akio Toba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Driving apparatus for driving multiple induction motors
- Patent number 7,180,259
- Issue date Feb 20, 2007
- Fuji Electric Systems Co., Ltd.
- Yasushi Matsumoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable-speed controlling device for use with an induction motor
- Patent number 6,404,162
- Issue date Jun 11, 2002
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Speed sensorless vector control apparatus
- Patent number 6,377,018
- Issue date Apr 23, 2002
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM power converter
- Patent number 6,259,611
- Issue date Jul 10, 2001
- Fuji Electric Co., Ltd.
- Junichi Ito
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for variably controlling speed induction motor
- Patent number 6,060,860
- Issue date May 9, 2000
- Fuji Electric Co., Ltd.
- Junichi Itoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable speed controlling device for induction motor
- Patent number 5,959,429
- Issue date Sep 28, 1999
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable-speed control method and apparatus for AC motor
- Patent number 5,880,572
- Issue date Mar 9, 1999
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable speed controller for an AC motor
- Patent number 5,859,521
- Issue date Jan 12, 1999
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable speed controller for an induction motor
- Patent number 5,828,199
- Issue date Oct 27, 1998
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for AC motor
- Patent number 5,734,251
- Issue date Mar 31, 1998
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling an AC motor and detecting malf...
- Patent number 5,623,190
- Issue date Apr 22, 1997
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for driving an AC motor at variable speeds
- Patent number 5,608,302
- Issue date Mar 4, 1997
- Fuji Electric Co., Ltd.
- Hidetoshi Umida
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable speed control apparatus for induction motor
- Patent number 5,532,570
- Issue date Jul 2, 1996
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor vibration control device and method for matching a motor spee...
- Patent number 5,525,877
- Issue date Jun 11, 1996
- Fuji Electric Co., Ltd.
- Hidetoshi Umida
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for a variable speed motor
- Patent number 5,506,930
- Issue date Apr 9, 1996
- Fuji Electric Co., Ltd.
- Hidetoshi Umida
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Parameter identifier
- Patent number 5,489,829
- Issue date Feb 6, 1996
- Fuji Electric Co., Ltd.
- Hidetoshi Umida
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
GATE DRIVE CIRCUIT
- Publication number 20190273489
- Publication date Sep 5, 2019
- Fuji Electric Co., Ltd.
- Sho TAKANO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
INVERTER CONTROL METHOD, CONTROL DEVICE, AND INVERTER
- Publication number 20190089286
- Publication date Mar 21, 2019
- Fuji Electric Co., Ltd.
- Akio TOBA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE SYSTEM
- Publication number 20140354194
- Publication date Dec 4, 2014
- Fuji Electric Co., Ltd.
- Akio TOBA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Driving apparatus for driving multiple induction motors
- Publication number 20060012322
- Publication date Jan 19, 2006
- Yasushi Matsumoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Speed sensorless vector control apparatus
- Publication number 20010043048
- Publication date Nov 22, 2001
- Fuji Electric Co., Ltd.
- Hirokazu Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Hidetoshi Umida

Person

Patents Grantslast 30 patents

Gate drive circuit

Inverter that adjusts voltage command values and control method of...

Inverter that adjusts voltage command values and control method of...

Driving apparatus for driving multiple induction motors

Variable-speed controlling device for use with an induction motor

Speed sensorless vector control apparatus

PWM power converter

Control apparatus for variably controlling speed induction motor

Variable speed controlling device for induction motor

Variable-speed control method and apparatus for AC motor

Variable speed controller for an AC motor

Variable speed controller for an induction motor

Control apparatus for AC motor

Method and apparatus for controlling an AC motor and detecting malf...

Apparatus for driving an AC motor at variable speeds

Variable speed control apparatus for induction motor

Motor vibration control device and method for matching a motor spee...

Control apparatus for a variable speed motor

Parameter identifier

Patents Applicationslast 30 patents

GATE DRIVE CIRCUIT

INVERTER CONTROL METHOD, CONTROL DEVICE, AND INVERTER

MOTOR DRIVE SYSTEM

Driving apparatus for driving multiple induction motors

Speed sensorless vector control apparatus