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Fujio Shibata
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Yachiyo, JA
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last 30 patents
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Patent Grant
Magnetic recording medium comprising cobalt or cobalt alloy coated...
Patent number
3,977,985
Issue date
Aug 31, 1976
TDK Electronics Company, Limited
Shinji Umeki
B22 - CASTING POWDER METALLURGY
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Patent Grant
Process for the production of powdered magnetic material
Patent number
3,958,068
Issue date
May 18, 1976
TDK Electronics Company, Limited
Shinji Umeki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...