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:
Jan. 04, 2000
Filed:
Mar. 05, 1998
Yasunobu Amano, Tokyo, JP;
Naruhiko Endo, Fukushima, JP;
Yoichi Ohshige, Kanagawa, JP;
Masahiko Mizuki, Kanagawa, JP;
Yoshiaki Takasaka, Tokyo, JP;
Sony Corporation, , JP;
Abstract
To provide a cathode ray tube stabilizing the potential at an inner wall of a neck, providing stabilized nocking effect by forced discharge among electrodes or the like, promoting the withstand voltage characteristic of an electron gun and preventing deterioration in image quality resulted from straying leakage current, an electron gun where both ends of metal lines are welded to an intermediate electrode and a focus electrode (5-1-th electrode) to surround beading glass and a voltage dividing resistor, is sealed in a neck portion and thereafter, the metal lines are heated by high frequency heating by which a metal film is formed on surfaces of an inner wall of the neck and the voltage dividing resistor and the beading glass.