Method for preparing cores and the like made from metallic oxides

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United States of America Patent

PATENT NO 4556435
SERIAL NO

06666268

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Abstract

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A method for preparing cores and the like such as magnetic recording head cores. They are made from metallic alloy oxides such as ferrite and used as electric, electronic, or magnetic elements of electric appliances such as tape recorders and televisions. The method is characterized by covering alloy compacts in part or as whole by silver and then baking them in an oxygen atmosphere for a predetermined time and at a predetermined temperature, whereby constituents of the alloy compacts are converted to oxides under strict control. Silver converging baked cores may be utilized for attaching terminals.

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Patent Owner(s)

Patent OwnerAddress
CHUGAI DENKI KOGYO KABUSHIKI-KAISHA A CORP OF JAPAN13/3 NIHONBASHI-KAYABACHO 2-CHOME CHUO-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shibata, Akira Yokohama, JP 152 1140

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