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:
Jul. 03, 1990
Filed:
Dec. 18, 1987
Applicant:
Inventors:
Kaoru Tomii, Isehara, JP;
Hiroshi Miyama, Yokohama, JP;
Yoshikazu Kawauchi, Kawasaki, JP;
Jun Nishida, Shibuya, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313422 ; 313413 ; 313421 ; 315366 ; 315369 ; 315370 ;
Abstract
A flat type cathode ray tube. Electrode beams are vertically emitted from electron beam emitting sources along vertical scanning electrodes which have a strip-shaped configuration in horizontal direction and are insulated from each other and lined up in the vertical direction. The beams turn at a predetermined position toward a phosphor screen for vertically scanning and are horizontally focussed and deflected onto the phosphor screen by horizontal focussing and deflection electrodes.