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Hiroaki Kojima
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Diagnostic device and diagnostic method
Patent number
11,372,048
Issue date
Jun 28, 2022
Hitachi, Ltd.
Akari Kubo
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Dynamo-electric machine having coils insulated by semi-conductive l...
Patent number
11,374,454
Issue date
Jun 28, 2022
Hitachi Industrial Products, Ltd.
Yuuki Kasai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rotating electrical machine coil, production method of rotating ele...
Patent number
10,424,984
Issue date
Sep 24, 2019
Hitachi, Ltd.
Hiroaki Kojima
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rotating machine
Patent number
10,199,900
Issue date
Feb 5, 2019
Hitachi, Ltd.
Takeshi Iwata
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Partial-discharge measurement method and high-voltage device inspec...
Patent number
9,851,394
Issue date
Dec 26, 2017
Hitachi, Ltd.
Hiroaki Kojima
G01 - MEASURING TESTING
Information
Patent Grant
Deterioration diagnosis system
Patent number
9,810,743
Issue date
Nov 7, 2017
Hitachi, Ltd.
Kohji Maki
G01 - MEASURING TESTING
Information
Patent Grant
Rotating electrical machine
Patent number
9,779,852
Issue date
Oct 3, 2017
Hitachi, Ltd.
Kenji Ikeda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method for predicting volume change of void generated in resin fill...
Patent number
8,543,363
Issue date
Sep 24, 2013
Hitachi, Ltd.
Tsutomu Kono
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Power switch with one-shot discharge and increased switching speed
Patent number
8,519,773
Issue date
Aug 27, 2013
Texas Instruments Incorporated
Hiroshi Watanabe
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Phase-locked loop circuit having correction for active filter offset
Patent number
7,554,412
Issue date
Jun 30, 2009
Texas Instruments Incorporated
Hiroaki Kojima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Microforce measurement method and apparatus
Patent number
6,806,958
Issue date
Oct 19, 2004
National Institute of Information and Communications Technology, Independent...
Hiroaki Kojima
G01 - MEASURING TESTING
Information
Patent Grant
Frequency comparison circuit
Patent number
6,580,297
Issue date
Jun 17, 2003
Texas Instruments Incorporated
Hiroaki Kojima
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
DIAGNOSTIC DEVICE AND DIAGNOSTIC METHOD
Publication number
20210165045
Publication date
Jun 3, 2021
Hitachi, Ltd
Akari KUBO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Dynamo-Electric Machine
Publication number
20210050758
Publication date
Feb 18, 2021
Hitachi Industrial Products, Ltd.
Yuuki KASAI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Rotating Electrical Machine Coil, Production Method of Rotating Ele...
Publication number
20160301274
Publication date
Oct 13, 2016
Hitachi, Ltd
Hiroaki KOJIMA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Partial-Discharge Measurement Method and High-Voltage Device Inspec...
Publication number
20160216309
Publication date
Jul 28, 2016
Hitachi, Ltd
Hiroaki KOJIMA
G01 - MEASURING TESTING
Information
Patent Application
Rotating Machine
Publication number
20160118867
Publication date
Apr 28, 2016
Hitachi, Ltd
Takeshi IWATA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Rotating Electrical Machine
Publication number
20150340920
Publication date
Nov 26, 2015
Hitachi, Ltd
Kenji IKEDA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Deterioration Diagnosis System
Publication number
20150331051
Publication date
Nov 19, 2015
Hitachi, Ltd
Kohji MAKI
G01 - MEASURING TESTING
Information
Patent Application
POWER SWITCH
Publication number
20120319762
Publication date
Dec 20, 2012
TEXAS INSTRUMENTS INCORPORATED
Hiroshi Watanabe
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD FOR PREDICTING VOLUME CHANGE OF VOID GENERATED IN RESIN FILL...
Publication number
20110112812
Publication date
May 12, 2011
Tsutomu KONO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Phase-locked loop circuit
Publication number
20060114069
Publication date
Jun 1, 2006
Hiroaki Kojima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Microforce measurement method and apparatus
Publication number
20030086094
Publication date
May 8, 2003
Hiroaki Kojima
G01 - MEASURING TESTING
Information
Patent Application
FREQUENCY COMPARISON CIRCUIT
Publication number
20020180488
Publication date
Dec 5, 2002
Hiroaki Kojima
H03 - BASIC ELECTRONIC CIRCUITRY