Koichiro Nagata

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Device monitoring device and device monitoring method
- Patent number 12,174,256
- Issue date Dec 24, 2024
- Hitachi, Ltd.
- Akihiro Nakamura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Transmission device monitoring system
- Patent number 12,055,214
- Issue date Aug 6, 2024
- Hitachi, Ltd.
- Akihiro Nakamura
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Manufacturing system and manufacturing method
- Patent number 10,871,769
- Issue date Dec 22, 2020
- Hitachi, Ltd.
- Koichiro Nagata
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power conversion device
- Patent number 9,350,284
- Issue date May 24, 2016
- Hitachi, Ltd.
- Toshifumi Sakai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and method for controlling thereof
- Patent number 8,710,781
- Issue date Apr 29, 2014
- Hitachi Industrial Equipment Systems Co., Ltd.
- Yoichiro Arakawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric motor drive system and electric motor control method
- Patent number 8,115,442
- Issue date Feb 14, 2012
- Hitachi, Ltd.
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Induction motor drive unit, motor drive system, and elevating system
- Patent number 7,902,790
- Issue date Mar 8, 2011
- Hitachi Industrial Equipment Systems Co., Ltd.
- Yoichiro Arakawa
- 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
Induction motor controller
- Patent number 7,671,558
- Issue date Mar 2, 2010
- Hitachi Industrial Equipment Systems Co., Ltd.
- Kouki Yamamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Driver for induction motor and method of driving the same
- Patent number 7,545,116
- Issue date Jun 9, 2009
- Hitachi Industrial Equipment Systems Co., Ltd.
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Driving apparatus for a motor
- Patent number 7,332,888
- Issue date Feb 19, 2008
- Hitachi, Ltd.
- Koichiro Nagata
- 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

Patents Applicationslast 30 patents

Information Patent Application
Device Diagnosis System
- Publication number 20240353291
- Publication date Oct 24, 2024
- Hitachi Industrial Products, Ltd.
- Koichiro NAGATA
- B60 - VEHICLES IN GENERAL
Information Patent Application
Device Monitoring Device and Device Monitoring Method
- Publication number 20230102125
- Publication date Mar 30, 2023
- Hitachi, Ltd
- Akihiro NAKAMURA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
TRANSMISSION DEVICE MONITORING SYSTEM
- Publication number 20230070822
- Publication date Mar 9, 2023
- Hitachi, Ltd
- Akihiro NAKAMURA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
ESTIMATION MANAGEMENT SYSTEM
- Publication number 20210133659
- Publication date May 6, 2021
- Hitachi, Ltd
- Kenji FUJIHIRA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MANUFACTURING SYSTEM AND MANUFACTURING METHOD
- Publication number 20180292813
- Publication date Oct 11, 2018
- Hitachi, Ltd
- Koichiro NAGATA
- G05 - CONTROLLING REGULATING
Information Patent Application
Power Conversion Device
- Publication number 20140340005
- Publication date Nov 20, 2014
- Toshifumi Sakai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING THEREOF
- Publication number 20110292700
- Publication date Dec 1, 2011
- Yoichiro Arakawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRIC MOTOR DRIVE SYSTEM AND ELECTRIC MOTOR CONTROL METHOD
- Publication number 20090195200
- Publication date Aug 6, 2009
- Hitachi, Ltd.
- Koichiro NAGATA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INDUCTION MOTOR DRIVE UNIT, MOTOR DRIVE SYSTEM, AND ELEVATING SYSTEM
- Publication number 20080315824
- Publication date Dec 25, 2008
- Hitachi Industrial Equipment System
- Yoichiro ARAKAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INDUCTION MOTOR CONTROLLER
- Publication number 20080169783
- Publication date Jul 17, 2008
- KOUKI YAMAMOTO
- 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
DRIVER FOR INDUCTION MOTOR AND METHOD OF DRIVING THE SAME
- Publication number 20070210741
- Publication date Sep 13, 2007
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Driving apparatus for a motor
- Publication number 20060192521
- Publication date Aug 31, 2006
- Koichiro Nagata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Lighting control apparatus
- Publication number 20040177537
- Publication date Sep 16, 2004
- Mitsubishi Denki Kabushiki Kaisha
- Koichiro Nagata
- B60 - VEHICLES IN GENERAL
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

Koichiro Nagata

Person

Patents Grantslast 30 patents

Device monitoring device and device monitoring method

Transmission device monitoring system

Manufacturing system and manufacturing method

Power conversion device

Power conversion device and method for controlling thereof

Electric motor drive system and electric motor control method

Induction motor drive unit, motor drive system, and elevating system

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

Induction motor controller

Driver for induction motor and method of driving the same

Driving apparatus for a motor

Controller of AC machine

Method for calculating inertia moment and driver for electric motor

Patents Applicationslast 30 patents

Device Diagnosis System

Device Monitoring Device and Device Monitoring Method

TRANSMISSION DEVICE MONITORING SYSTEM

ESTIMATION MANAGEMENT SYSTEM

MANUFACTURING SYSTEM AND MANUFACTURING METHOD

Power Conversion Device

POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING THEREOF

ELECTRIC MOTOR DRIVE SYSTEM AND ELECTRIC MOTOR CONTROL METHOD

INDUCTION MOTOR DRIVE UNIT, MOTOR DRIVE SYSTEM, AND ELEVATING SYSTEM

INDUCTION MOTOR CONTROLLER

ELECTRIC POWER CONVERTER APPARATUS

DRIVER FOR INDUCTION MOTOR AND METHOD OF DRIVING THE SAME

Driving apparatus for a motor

Lighting control apparatus

Controller of AC machine

Method for calculating inertia moment and driver for electric motor