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Tsutomu Choh
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Yachiyo, JP
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last 30 patents
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Patent Grant
Soft magnetic alloy, method for making, magnetic core, magnetic shi...
Patent number
5,252,148
Issue date
Oct 12, 1993
TDK Corporation
Masao Shigeta
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Patent Grant
Magnetic shield-forming magnetically soft powder, composition there...
Patent number
4,923,533
Issue date
May 8, 1990
TDK Corporation
Masao Shigeta
H01 - BASIC ELECTRIC ELEMENTS