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:
May. 24, 1988
Filed:
Jun. 23, 1986
Hiroji Sumiyoshi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A process of producing a color selection mechanism for a cathode-ray tube which eliminates operations such as heat treatment at a high temperature for annealing and processing with levellers, to simplify production steps and resolves problems of rejects and dependability due to segregation of components involved in the stamping operation of a conventional process. A color selection electrode having a plurality of electron beam-passing openings formed therein is merely bent within the elastic limit of the material of the electrode, without causing a drawing effect, into a curved facial shape having substantially a cylindrical face as a basic facial shape thereof, and is permanently mounted in the curved condition on a frame to form a color selection mechanism.