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. 21, 1992
Filed:
May. 04, 1990
Mamoru Tsuzurahara, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetron cathode structure, including one or separate ceramic members having two openings therethrough with an electrical lead passing through each opening. A metallized section is formed on the interior surface of each opening, and another metallized section is formed on the exterior surface of each ceramic member to cause the respective metallized sections to form electrodes of first and second condensers. A resilient metal buffer member seals each electrical lead to the metallized section of that lead's respective opening. The resilient metal buffer members absorb thermal stress resulting from a difference in the coefficients of thermal expansion of the respective metallized section and the associated ceramic member. A metal outer frame member is sealed to the other metallized sections.