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:
Jun. 18, 2002
Filed:
Sep. 06, 2000
Applicant:
Inventors:
Mutsumi Maehara, Mobara, JP;
Syunichi Matsumoto, Chiba, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 2/910 ;
U.S. Cl.
CPC ...
H01J 2/910 ;
Abstract
A color cathode ray tube includes a panel having an outer surface which is flat and an inner surface which is a curved surface, and the inner surface has an approximately rectangular effective screen on which an image is to be displayed. Letting Tc, Td and D be, respectively, the glass thickness of the panel at the center thereof, the glass thickness of an end of a diagonal effective diameter, and half of the diagonal effective diameter, (Td−Tc)/D≦7.5% and the maximum deflection angle is between 96° and 99°.
Maehara, Mutsumi. (2002). Shadow mask type color cathode ray tube whose panel surface is flat (U.S. Patent No. 6407494). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6407494
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile