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Matahiro Komuro
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Soft magnetic material and method for producing the same, and elect...
Patent number
12,129,558
Issue date
Oct 29, 2024
Hitachi, Ltd.
Matahiro Komuro
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Ball screw, method for manufacturing ball screw, power steering dev...
Patent number
12,060,926
Issue date
Aug 13, 2024
Hitachi Astemo, Ltd.
Matahiro Komuro
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel material, material processing method, and material processing...
Patent number
10,240,225
Issue date
Mar 26, 2019
Hitachi, Ltd.
Matahiro Komuro
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Alcoholic solution and sintered magnet
Patent number
9,373,432
Issue date
Jun 21, 2016
Hitachi Chemical Company, Ltd.
Nobuo Abe
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Sintered magnet
Patent number
9,129,731
Issue date
Sep 8, 2015
Hitachi, Ltd.
Matahiro Komuro
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetic material and motor using the same
Patent number
8,821,649
Issue date
Sep 2, 2014
Hitachi, Ltd.
Takayuki Kanda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ferromagnetic compound magnet
Patent number
8,764,917
Issue date
Jul 1, 2014
Hitachi, Ltd.
Hiroyuki Suzuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Powdered-iron magnet and rotating machine using the same
Patent number
8,388,769
Issue date
Mar 5, 2013
Hitachi, Ltd.
Matahiro Komuro
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Permanent magnet type electric rotating machine
Patent number
8,358,040
Issue date
Jan 22, 2013
Hitachi, Ltd.
Matahiro Komuro
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rotating machine with sintered magnet and method for producing sint...
Patent number
8,350,430
Issue date
Jan 8, 2013
Hitachi, Ltd.
Matahiro Komuro
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rare earth magnet
Patent number
8,303,732
Issue date
Nov 6, 2012
Hitachi, Ltd.
Hiroyuki Suzuki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Compacted magnetic core, production method of the same, and motor f...
Patent number
8,226,779
Issue date
Jul 24, 2012
Hitachi, Ltd.
Takao Imagawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High resistance magnet and motor using the same
Patent number
8,222,785
Issue date
Jul 17, 2012
Hitachi, Ltd.
Matahiro Komuro
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Rare-earth magnet
Patent number
8,119,260
Issue date
Feb 21, 2012
Hitachi, Ltd.
Matahiro Komuro
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rare-earth magnet and manufacturing method thereof and magnet motor
Patent number
8,084,128
Issue date
Dec 27, 2011
Hitachi, Ltd.
Matahiro Komuro
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
High resistance magnet and motor using the same
Patent number
7,972,450
Issue date
Jul 5, 2011
Hitachi, Ltd.
Matahiro Komuro
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Rare earth element magnet and method of manufacturing same
Patent number
7,927,501
Issue date
Apr 19, 2011
Hitachi, Ltd.
Matahiro Komuro
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Magnet using binding agent and method of manufacturing the same
Patent number
7,914,695
Issue date
Mar 29, 2011
Hitachi, Ltd.
Yuichi Satsu
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Motor
Patent number
7,906,881
Issue date
Mar 15, 2011
Hitachi, Ltd.
Yuji Enomoto
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Sintered magnet and rotating machine equipped with the same
Patent number
7,880,357
Issue date
Feb 1, 2011
Hitachi, Ltd.
Hiroyuki Suzuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Dynamo electric machine with an alloy member
Patent number
7,876,012
Issue date
Jan 25, 2011
Hitachi, Ltd.
Matahiro Komuro
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rare-earth magnet and manufacturing method thereof and magnet motor
Patent number
7,871,475
Issue date
Jan 18, 2011
Hitachi, Ltd.
Matahiro Komuro
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Treating agent for forming a fluoride coating film and method for f...
Patent number
7,862,654
Issue date
Jan 4, 2011
Hitachi Chemical Company, Ltd.
Yuichi Satsu
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
MRI apparatus with high-resistance magnet
Patent number
7,847,555
Issue date
Dec 7, 2010
Hitachi, Ltd.
Matahiro Komuro
G01 - MEASURING TESTING
Information
Patent Grant
Compacted magnetic core with high resistance, manufacturing method...
Patent number
7,816,820
Issue date
Oct 19, 2010
Hitachi, Ltd.
Takao Imagawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Treating agent for forming a fluoride coating film and method for f...
Patent number
7,815,726
Issue date
Oct 19, 2010
Hitachi Chemical Company, Ltd.
Yuichi Satsu
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Low loss magnet and magnetic circuit using the same
Patent number
7,806,991
Issue date
Oct 5, 2010
Hitachi, Ltd.
Matahiro Komuro
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Sintered magnet and rotating machine equipped with the same
Patent number
7,800,271
Issue date
Sep 21, 2010
Hitachi, Ltd.
Matahiro Komuro
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High resistance magnet and motor using the same
Patent number
7,696,662
Issue date
Apr 13, 2010
Hitachi, Ltd.
Matahiro Komuro
G11 - INFORMATION STORAGE
Information
Patent Grant
Rare-earth magnet and manufacturing method thereof and magnet motor
Patent number
7,569,114
Issue date
Aug 4, 2009
Hitachi, Ltd.
Matahiro Komuro
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Laminated Iron Core and Rotating Electric Machine Using the Same
Publication number
20250055329
Publication date
Feb 13, 2025
Hitachi, Ltd.
Matahiro KOMURO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SOFT MAGNETIC IRON ALLOY PLATE, IRON CORE USING THE SOFT MAGNETIC I...
Publication number
20250037911
Publication date
Jan 30, 2025
Hitachi, Ltd
Tomohiro TABATA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SOFT MAGNETIC IRON ALLOY SHEET AND METHOD OF MANUFACTURING THE SAME
Publication number
20240233993
Publication date
Jul 11, 2024
Hitachi, Ltd
Tomohiro TABATA
C21 - METALLURGY OF IRON
Information
Patent Application
Soft Magnetic Iron Alloy Plate, Method for Manufacturing Soft Magne...
Publication number
20240194383
Publication date
Jun 13, 2024
Hitachi, Ltd
Matahiro KOMURO
C21 - METALLURGY OF IRON
Information
Patent Application
Magnetic Material, Iron Core, and Rotating Electric Machine
Publication number
20240186841
Publication date
Jun 6, 2024
Hitachi, Ltd
Yusuke ASARI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SOFT MAGNETIC IRON ALLOY SHEET AND METHOD OF MANUFACTURING THE SAME
Publication number
20240136096
Publication date
Apr 25, 2024
Hitachi, Ltd
Tomohiro TABATA
C21 - METALLURGY OF IRON
Information
Patent Application
Soft Magnetic Iron Sheet, Method for Producing Soft Magnetic Iron S...
Publication number
20230290551
Publication date
Sep 14, 2023
Hitachi, Ltd
Matahiro KOMURO
C21 - METALLURGY OF IRON
Information
Patent Application
Soft Magnetic Material, Method for Producing Soft Magnetic Material...
Publication number
20230287546
Publication date
Sep 14, 2023
Hitachi, Ltd
Kazuya SHINAGAWA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
SOFT MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING THE SOFT MAGNET...
Publication number
20220328225
Publication date
Oct 13, 2022
Hitachi, Ltd
Matahiro KOMURO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
BALL SCREW, METHOD FOR MANUFACTURING BALL SCREW, POWER STEERING DEV...
Publication number
20220128135
Publication date
Apr 28, 2022
Hitachi Astemo, Ltd.
Matahiro KOMURO
C21 - METALLURGY OF IRON
Information
Patent Application
SOFT MAGNETIC MATERIAL AND METHOD FOR PRODUCING THE SAME, AND ELECT...
Publication number
20220042157
Publication date
Feb 10, 2022
Hitachi, Ltd
Matahiro KOMURO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
SINTERED MAGNET AND PRODUCTION METHOD FOR SINTERED MAGNET
Publication number
20210272727
Publication date
Sep 2, 2021
Hitachi, Ltd
Matahiro KOMURO
B22 - CASTING POWDER METALLURGY
Information
Patent Application
STRUCTURAL MATERIAL
Publication number
20190284676
Publication date
Sep 19, 2019
Hitachi, Ltd
Matahiro KOMURO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
STEEL MATERIAL, MATERIAL PROCESSING METHOD, AND MATERIAL PROCESSING...
Publication number
20160083821
Publication date
Mar 24, 2016
Hitachi, Ltd
Matahiro KOMURO
C21 - METALLURGY OF IRON
Information
Patent Application
SINTERED MAGNET AND PROCESS FOR PRODUCTION THEREOF
Publication number
20150170809
Publication date
Jun 18, 2015
Hitachi, Ltd
Matahiro Komuro
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SINTERED MAGNET AND PRODUCTION PROCESS THEREFOR
Publication number
20150162117
Publication date
Jun 11, 2015
Hitachi, Ltd
Matahiro Komuro
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
STRUCTURAL BODY AND PRODUCTION METHOD FOR THE SAME
Publication number
20150071702
Publication date
Mar 12, 2015
Hitachi, Ltd
Matahiro KOMURO
C21 - METALLURGY OF IRON
Information
Patent Application
Rare Earth Magnet and Motor Using the Same
Publication number
20130278104
Publication date
Oct 24, 2013
Matahiro Komuro
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Sintered Magnet Motor
Publication number
20130162089
Publication date
Jun 27, 2013
Hitachi, Ltd
Matahiro KOMURO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Alcoholic Solution and Sintered Magnet
Publication number
20130126775
Publication date
May 23, 2013
Hitachi Chemical Company, Ltd.
Nobuo ABE
B82 - NANO-TECHNOLOGY
Information
Patent Application
Sintered Magnet
Publication number
20130069746
Publication date
Mar 21, 2013
Hitachi, Ltd
Matahiro KOMURO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Rotating Machine with Sintered Magnet and Method for Producing Sint...
Publication number
20120205573
Publication date
Aug 16, 2012
Hitachi, Ltd
Matahiro Komuro
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
RARE-EARTH MAGNET
Publication number
20120175986
Publication date
Jul 12, 2012
Matahiro Komuro
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MAGNETIC MATERIAL AND MOTOR OBTAINED USING SAME
Publication number
20120145944
Publication date
Jun 14, 2012
Matahiro Komuro
C01 - INORGANIC CHEMISTRY
Information
Patent Application
TREATING SOLUTION FOR FORMING FLUORIDE COATING FILM AND METHOD FOR...
Publication number
20120111232
Publication date
May 10, 2012
Matahiro Komuro
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
SINTERED MAGNET AND ROTATING ELECTRIC MACHINE USING SAME
Publication number
20120025651
Publication date
Feb 2, 2012
Matahiro Komuro
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HIGH RESISTANCE MAGNET AND MOTOR USING THE SAME
Publication number
20110254646
Publication date
Oct 20, 2011
MATAHIRO KOMURO
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC MATERIAL AND MOTOR USING THE SAME
Publication number
20110240909
Publication date
Oct 6, 2011
Hitachi, Ltd.
Takayuki KANDA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
FERROMAGNETIC COMPOUND MAGNET
Publication number
20110133112
Publication date
Jun 9, 2011
Hitachi, Ltd.
Hiroyuki SUZUKI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
RARE-EARTH MAGNET AND MANUFACTURING METHOD THEREOF AND MAGNET MOTOR
Publication number
20110079327
Publication date
Apr 7, 2011
Matahiro Komuro
H01 - BASIC ELECTRIC ELEMENTS