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Motohisa Hasegawa
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Kumagaya, JP
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last 30 patents
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Patent Grant
R-T-B-based, permanent magnet, method for producing same, and perma...
Patent number
6,254,694
Issue date
Jul 3, 2001
Hitachi Metals, Ltd.
Motohisa Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
R-T-B-based, permanent magnet, method for producing same, and perma...
Patent number
5,876,518
Issue date
Mar 2, 1999
Hitachi Metals, Ltd.
Motohisa Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
R-Fe-B magnet alloy, isotropic bonded magnet and method of producin...
Patent number
5,449,417
Issue date
Sep 12, 1995
Hitachi Metals, Ltd.
Motoharu Shimizu
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...