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Hiroshi Kogure
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Fukaya, JP
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last 30 patents
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Patent Grant
Permanent magnet with good thermal stability
Patent number
5,230,751
Issue date
Jul 27, 1993
Hitachi Metals, Ltd.
Minoru Endoh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnet with good thermal stability
Patent number
5,223,047
Issue date
Jun 29, 1993
Hitachi Metals, Ltd.
Minoru Endoh
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Permanent magnet having good thermal stability and method for manuf...
Patent number
5,041,172
Issue date
Aug 20, 1991
Hitachi Metals, Ltd.
Masaaki Tokunaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Permanent magnet having good thermal stability and method for manuf...
Patent number
4,814,139
Issue date
Mar 21, 1989
Hitachi Metals, Ltd.
Masaaki Tokunaga
H01 - BASIC ELECTRIC ELEMENTS