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Michihisa Shimizu
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Saitama, JP
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Patents Grants
last 30 patents
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Patent Grant
Permanent magnetic alloy and bonded magnet
Patent number
7,022,252
Issue date
Apr 4, 2006
Hitachi Metals, Ltd.
Mitsuaki Mochizuki
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Rare earth permanent magnet, method of heat treatment of same, and...
Patent number
5,164,023
Issue date
Nov 17, 1992
Hitachi Metals Ltd.
Kazunori Tabaru
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
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Patent Application
Permanent magnetic alloy and bonded magnet
Publication number
20030145910
Publication date
Aug 7, 2003
HITACHI METALS, LTD
Mitsuaki Mochizuki
H01 - BASIC ELECTRIC ELEMENTS