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:
Aug. 02, 1994
Filed:
Jun. 30, 1992
Applicant:
Inventor:
Hidemasa Kawai, Tokyo, JP;
Assignee:
NEC CorporationCorporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315-538 ;
Abstract
A microwave tube collector assembly includes a metal cylinder and a chromium oxide film. The metal cylinder has at least a layer of a chromium alloy on its overall inner circumferential surface and is closed at one end thereof. The a chromium oxide film is formed on the basis of the chromium alloy to cover the inner circumferential surface of the metal cylinder.
Kawai, Hidemasa. (1994). Microwave tube collector assembly including a chromium oxide film (U.S. Patent No. 5334909). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5334909
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