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Daisuke Maeda
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Control apparatus and control method for AC electric motor
Patent number
8,531,148
Issue date
Sep 10, 2013
Hitachi, Ltd.
Satoshi Sumita
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control unit and control method for permanent magnet synchronous motor
Patent number
8,436,563
Issue date
May 7, 2013
Hitachi, Ltd.
Satoshi Sumita
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Synchronous motor and control method of synchronous motor
Patent number
8,421,395
Issue date
Apr 16, 2013
Hitachi, Ltd.
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus and method for driving synchronous motor
Patent number
8,035,330
Issue date
Oct 11, 2011
Hitachi, Ltd.
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor device for driving motor, three-phase motor and motor...
Patent number
7,859,210
Issue date
Dec 28, 2010
Hitachi, Ltd.
Kenji Sakurai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus and method for driving synchronous motor
Patent number
7,839,113
Issue date
Nov 23, 2010
Hitachi, Ltd.
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Vector controller for a permanent magnet motor and inverter module
Patent number
7,821,223
Issue date
Oct 26, 2010
Hitachi, Ltd.
Kazuaki Tobari
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Motor controller, washing machine, air conditioner and electric oil...
Patent number
7,619,385
Issue date
Nov 17, 2009
Hitachi, Ltd.
Takahiro Suzuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Field weakening vector controller for permanent magnet synchronous...
Patent number
7,443,120
Issue date
Oct 28, 2008
Hitachi, Ltd.
Kazuaki Tobari
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Protective relay apparatus
Patent number
6,683,769
Issue date
Jan 27, 2004
Hitachi, Ltd.
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Protective relay apparatus
Patent number
6,678,136
Issue date
Jan 13, 2004
Hitachi, Ltd.
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
CONTROL APPARATUS AND CONTROL METHOD FOR AC ELECTRIC MOTOR
Publication number
20120001581
Publication date
Jan 5, 2012
Hitachi, Ltd.
Satoshi SUMITA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
APPARATUS AND METHOD FOR DRIVING SYNCHRONOUS MOTOR
Publication number
20110018485
Publication date
Jan 27, 2011
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Control Unit and Control Method for Permanent Magnet Synchronous Motor
Publication number
20110006715
Publication date
Jan 13, 2011
Hitachi, Ltd
Satoshi SUMITA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SYNCHRONOUS MOTOR AND CONTROL METHOD OF SYNCHRONOUS MOTOR
Publication number
20090256505
Publication date
Oct 15, 2009
Hitachi, Ltd.
Daisuke MAEDA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SEMICONDUCTOR DEVICE FOR DRIVING MOTOR, THREE-PHASE MOTOR AND MOTOR...
Publication number
20080224643
Publication date
Sep 18, 2008
Kenji Sakurai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
APPARATUS AND METHOD FOR DRIVING SYNCHRONOUS MOTOR
Publication number
20080203962
Publication date
Aug 28, 2008
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
VECTOR CONTROLLER FOR A PERMANENT MAGNET MOTOR AND INVERTER MODULE
Publication number
20080048606
Publication date
Feb 28, 2008
Kazuaki Tobari
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Field weakening vector controller for permanent magnet synchronous...
Publication number
20070085507
Publication date
Apr 19, 2007
Kazuaki Tobari
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Motor controller, washing machine, air conditioner and electric oil...
Publication number
20070024232
Publication date
Feb 1, 2007
Takahiro Suzuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Protective relay apparatus
Publication number
20030072114
Publication date
Apr 17, 2003
Hitachi,Ltd.
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Protective relay apparatus
Publication number
20020159211
Publication date
Oct 31, 2002
Daisuke Maeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER