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Yutaka Matsuura
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Rare earth sintered magnet and method for producing same
Patent number
8,182,618
Issue date
May 22, 2012
Hitachi Metals, Ltd.
Noriyuki Nozawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Undulator
Patent number
7,872,555
Issue date
Jan 18, 2011
Hitachi Metals, Ltd.
Hideo Kitamura
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
R-t-b sintered magnet and rare earth alloy
Patent number
7,534,311
Issue date
May 19, 2009
Hitachi Metals, Ltd.
Hiroyuki Tomizawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of making magnetic precursor for permanent magnets
Patent number
5,766,372
Issue date
Jun 16, 1998
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Magnetic materials and permanent magnets
Patent number
5,645,651
Issue date
Jul 8, 1997
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Powder mixture for use in compaction to produce rare earth iron sin...
Patent number
5,527,504
Issue date
Jun 18, 1996
Sumitomo Metal Industries, Ltd.
Yoshihisa Kishimoto
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Powder mixture for use in compaction to produce rare earth iron sin...
Patent number
5,486,224
Issue date
Jan 23, 1996
Sumitomo Metal Industries, Ltd.
Yoshihisa Kishimoto
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Magnetic precursor materials for making permanent magnets
Patent number
5,466,308
Issue date
Nov 14, 1995
Sumitomo Special Metals Co. Ltd.
Setsuo Fujimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for producing magnets having improved corrosion resistance
Patent number
5,316,595
Issue date
May 31, 1994
Sumitomo Special Metals Co., Ltd.
Takaki Hamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnets
Patent number
5,230,749
Issue date
Jul 27, 1993
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetic materials
Patent number
5,194,098
Issue date
Mar 16, 1993
Sumitomo Special Metals Co., Ltd.
Masato Sagawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for producing isotropic permanent magnets and materials
Patent number
5,192,372
Issue date
Mar 9, 1993
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetic materials and permanent magnets
Patent number
5,183,516
Issue date
Feb 2, 1993
Sumitomo Special Metals Co., Ltd.
Masato Sagawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for producing permanent magnets and products thereof
Patent number
5,110,377
Issue date
May 5, 1992
Sumitomo Special Metals Co., Ltd.
Hitoshi Yamamoto
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Magnetic materials and permanent magnets
Patent number
5,096,512
Issue date
Mar 17, 1992
Sumitomo Special Metals Co., Ltd.
Masato Sagawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Magnets having improved corrosion resistance
Patent number
5,089,066
Issue date
Feb 18, 1992
Sumitomo Speical Metals Co., Ltd.
Takaki Hamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnet materials
Patent number
4,975,130
Issue date
Dec 4, 1990
Sumitomo Special Metals Co., Ltd.
Yutaka Matsuura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnet
Patent number
4,975,129
Issue date
Dec 4, 1990
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnets
Patent number
4,859,255
Issue date
Aug 22, 1989
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Isotropic permanent magnets and process for producing same
Patent number
4,840,684
Issue date
Jun 20, 1989
Sumitomo Special Metals Co, Ltd.
Setsuo Fujimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for producing magnets having improved corrosion resistance
Patent number
4,837,114
Issue date
Jun 6, 1989
Sumitomo Special Metals Co., Ltd.
Takaki Hamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process for producing permanent magnets and products thereof
Patent number
4,826,546
Issue date
May 2, 1989
Sumitomo Special Metal Co., Ltd.
Hitoshi Yamamoto
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Magnetic materials and permanent magnets
Patent number
4,792,368
Issue date
Dec 20, 1988
Sumitomo Special Metals Co., Ltd.
Masato Sagawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Permanent magnet
Patent number
4,773,950
Issue date
Sep 27, 1988
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetic materials and permanent magnets
Patent number
4,770,723
Issue date
Sep 13, 1988
Sumitomo Special Metals Co., Ltd.
Masato Sagawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Isotropic magnets and process for producing same
Patent number
4,767,474
Issue date
Aug 30, 1988
Sumitomo Special Metals Co., Ltd.
Setsuo Fujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnet materials
Patent number
4,684,406
Issue date
Aug 4, 1987
Sumitomo Special Metals Co., Ltd.
Yutaka Matsuura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process for producing magnetic materials
Patent number
4,601,875
Issue date
Jul 22, 1986
Sumitomo Special Metals Co., Ltd.
Hitoshi Yamamoto
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for producing permanent magnet materials
Patent number
4,597,938
Issue date
Jul 1, 1986
Sumitomo Special Metals Co., Ltd.
Yutaka Matsuura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnetic alloy
Patent number
4,484,957
Issue date
Nov 27, 1984
Sumitomo Special Metals Co., Ltd.
Akira Higuchi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
RARE EARTH SINTERED MAGNET AND METHOD FOR PRODUCING SAME
Publication number
20100148897
Publication date
Jun 17, 2010
Noriyuki Nozawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Undulator
Publication number
20080231215
Publication date
Sep 25, 2008
Hideo Kitamura
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
R-t-b sintered magnet and rare earth alloy
Publication number
20060201585
Publication date
Sep 14, 2006
Hiroyuki Tomizawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
R-t-b sintered magnet and process for producing the same
Publication number
20050268989
Publication date
Dec 8, 2005
Hiroyuki Tomizawa
C21 - METALLURGY OF IRON