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:
Mar. 19, 2002
Filed:
Mar. 01, 1999
Applicant:
Inventors:
Masahiro Nishizawa, Mobara, JP;
Toshio Tojo, Chiba-ken, JP;
Norikazu Uchiyama, Chiba-ken, JP;
Maki Ito, Ichihara, JP;
Kiyoshi Miura, Mobara, JP;
Hidetsugu Matsukiyo, Kawagoe, JP;
Tomoji Ohishi, Hitachi, JP;
Daigoro Kamoto, Hitachi, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 2/988 ; H01J 2/928 ; H01J 2/920 ;
U.S. Cl.
CPC ...
H01J 2/988 ; H01J 2/928 ; H01J 2/920 ;
Abstract
In a color cathode ray tube having a vacuum vessel that comprises a panel, a neck for housing an electron gun therein, and a funnel for connecting the panel and the neck, in which the inner surface of the panel glass is coated with a phosphor layer in different colors to give a display screen; the panel glass contains ions capable of selectively absorbing light within the range of visible rays, and its outer surface is coated with an electric conductive surface film.