The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 1978
Filed:
Dec. 13, 1976
Applicant:
Inventors:
Assignee:
Agency of Industrial Science & Technology, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106 58 ; 106 62 ; 106 733 ; 106 7332 ; 106 734 ; 106 735 ; 252 635 ;
Abstract
A magnesia ceramic for high-frequency electric insulation is produced by using, as the principal component, magnesia and adding thereto a calcium-magnesium-phosphate and at least one member selected from the group consisting of the oxides of aluminum, silicon, beryllium and tungsten.