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. 24, 1998
Filed:
Oct. 08, 1996
Applicant:
Inventors:
Go Uchida, Mobara, JP;
Syoji Shirai, Mobara, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
513414 ; 313412 ;
Abstract
A color cathode ray tube comprising in-line electron gun producing three electron beams, said electron gun having main lens comprising two cylindrical electrodes arranged in a spaced relationship in a direction of an axis of said tube, said two cylindrical electrodes being given different voltages, wherein the following inequalities are satisfied,