Yuhachi Takakura

Person

Oyama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sensorless control system for synchronous motor
- Patent number 6,690,137
- Issue date Feb 10, 2004
- Hitachi, Ltd.
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Pulse width modulation method, pulse width modulator and power conv...
- Patent number 6,657,412
- Issue date Dec 2, 2003
- Hitachi, Ltd.
- Seiji Ishida
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Synchronous motor driving system
- Patent number 6,650,081
- Issue date Nov 18, 2003
- Hitachi, Ltd.
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Starting control method of and control apparatus for synchronous mo...
- Patent number 6,642,681
- Issue date Nov 4, 2003
- Hitachi, Ltd.
- Yukio Kawabata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Controller for PWM/PAM motor, air conditioner, and method of motor...
- Patent number 6,626,002
- Issue date Sep 30, 2003
- Hitachi, Ltd.
- Yasuo Notohara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Synchronous motor driving system and sensorless control method for...
- Patent number 6,628,099
- Issue date Sep 30, 2003
- Hitachi, Ltd.
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor controller
- Patent number 6,603,280
- Issue date Aug 5, 2003
- Hitachi, Ltd.
- Yasuo Notohara
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Brushless motor control device and equipment using the control device
- Patent number 6,479,956
- Issue date Nov 12, 2002
- Hitachi, Ltd.
- Yukio Kawabata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor controller
- Patent number 6,198,240
- Issue date Mar 6, 2001
- Hitachi, Ltd.
- Yasuo Notohara
- B60 - VEHICLES IN GENERAL
Information Patent Grant
PWM/PAM control mode switching type motor control apparatus, and mo...
- Patent number 6,075,328
- Issue date Jun 13, 2000
- Hitachi, Ltd.
- Yasuo Notohara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Air conditioner
- Patent number 5,929,591
- Issue date Jul 27, 1999
- Hitachi, Ltd.
- Kouji Katou
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Level shift circuit and inverter apparatus using the same
- Patent number 5,351,182
- Issue date Sep 27, 1994
- Hitachi, Ltd.
- Hideki Miyazaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Synchronous motor driving system and sensorless control method for...
- Publication number 20030057912
- Publication date Mar 27, 2003
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Synchronous motor driving system
- Publication number 20030052640
- Publication date Mar 20, 2003
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Sensorless control system for synchronous motor
- Publication number 20030030404
- Publication date Feb 13, 2003
- Hitachi, Ltd.
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Starting control method of and control apparatus for synchronous mo...
- Publication number 20020117989
- Publication date Aug 29, 2002
- Yukio Kawabata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Pulse width modulation method, pulse width modulator and power conv...
- Publication number 20020093391
- Publication date Jul 18, 2002
- Seiji Ishida
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Motor controller
- Publication number 20010001227
- Publication date May 17, 2001
- Yasuo Notohara
- F24 - HEATING RANGES VENTILATING

Yuhachi Takakura

Person

Patents Grantslast 30 patents

Sensorless control system for synchronous motor

Pulse width modulation method, pulse width modulator and power conv...

Synchronous motor driving system

Starting control method of and control apparatus for synchronous mo...

Controller for PWM/PAM motor, air conditioner, and method of motor...

Synchronous motor driving system and sensorless control method for...

Motor controller

Brushless motor control device and equipment using the control device

Motor controller

PWM/PAM control mode switching type motor control apparatus, and mo...

Air conditioner

Level shift circuit and inverter apparatus using the same

Patents Applicationslast 30 patents

Synchronous motor driving system and sensorless control method for...

Synchronous motor driving system

Sensorless control system for synchronous motor

Starting control method of and control apparatus for synchronous mo...

Pulse width modulation method, pulse width modulator and power conv...

Motor controller