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Masayasu Senda
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Okayama-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Ferrite powder for bonded magnets, method for producing the same an...
Patent number
10,672,543
Issue date
Jun 2, 2020
DOW A ELECTRONICS MATERIALS CO., LTD.
Satoru Tsuboi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Ferrite powder for bonded magnets, method for producing the same an...
Patent number
10,665,371
Issue date
May 26, 2020
Dowa Electronics Materials Co., Ltd.
Satoru Tsuboi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Ferrite powder for bonded magnets, method for producing the same an...
Patent number
10,453,596
Issue date
Oct 22, 2019
Dowa Electronics Materials Co., Ltd.
Satoru Tsuboi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ferrite magnetic powder and method for production thereof
Patent number
7,390,424
Issue date
Jun 24, 2008
Dowa Electronics Materials Co., Ltd.
Masayasu Senda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ferrite magnet powder bond magnet
Patent number
7,384,571
Issue date
Jun 10, 2008
Dowa Electronics Materials Co., Ltd.
Masayasu Senda
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Bond magnet and ferrite magnetic powder for bond magnet
Patent number
7,255,807
Issue date
Aug 14, 2007
Dowa Mining Co., Ltd.
Masayasu Senda
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for production of permanent magnet alloy having improved re...
Patent number
5,183,630
Issue date
Feb 2, 1993
Dowa Mining Co., Ltd.
Toshio Ueda
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Permanent magnet alloy having improved resistance to oxidation and...
Patent number
5,147,473
Issue date
Sep 15, 1992
Dowa Mining Co., Ltd.
Toshio Ueda
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
FERRITE POWDER FOR BONDED MAGNETS, METHOD FOR PRODUCING THE SAME AN...
Publication number
20180244537
Publication date
Aug 30, 2018
DOWA ELECTRONICS MATERIALS CO., LTD.
Tomoya YAMADA
C01 - INORGANIC CHEMISTRY
Information
Patent Application
FERRITE POWDER FOR BONDED MAGNETS, METHOD FOR PRODUCING THE SAME AN...
Publication number
20170316857
Publication date
Nov 2, 2017
DOWA ELECTRONICS MATERIALS CO., LTD.
Satoru TSUBOI
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
FERRITE POWDER FOR BONDED MAGNETS, METHOD FOR PRODUCING THE SAME AN...
Publication number
20170309381
Publication date
Oct 26, 2017
DOWA ELECTRONICS MATERIALS CO., LTD.
Satoru TSUBOI
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
FERRITE POWDER FOR BONDED MAGNETS, METHOD FOR PRODUCING THE SAME AN...
Publication number
20170301440
Publication date
Oct 19, 2017
DOWA ELECTRONICS MATERIALS CO., LTD.
Satoru TSUBOI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Bond magnet and ferrite magnetic powder for bond magnet
Publication number
20070131893
Publication date
Jun 14, 2007
Masayasu Senda
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Ferrite magnetic powder and method for production thereof
Publication number
20060163525
Publication date
Jul 27, 2006
Masayasu Senda
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Bond magnet and ferrite magnetic powder for bond magnet
Publication number
20040212472
Publication date
Oct 28, 2004
Masayasu Senda
C01 - INORGANIC CHEMISTRY