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Kazuo Terada
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Amagasaki, JP
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last 30 patents
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Patent Grant
Process for producing a magnet of strontium ferrite having high per...
Patent number
5,061,412
Issue date
Oct 29, 1991
Sumitomo Special Metal Co. Ltd.
Kunio Okumori
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Process for producing ferrite powder for ferrite magnets
Patent number
5,053,156
Issue date
Oct 1, 1991
Sumitomo Special Metals Co. Ltd.
Kunio Okumori
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES