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:
Aug. 28, 1984
Filed:
Aug. 13, 1982
Applicant:
Inventors:
Assignee:
Futaba Denshi Kogyo Kabushiki Kaisha, Mobara, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; C09K / ;
U.S. Cl.
CPC ...
313496 ; 2523 / ;
Abstract
A low speed electron excited fluorescent material is disclosed comprising a ZuO:Zn fluorescent component excited by low speed electrons to emit light and an additive component selected from the group consisting of W, Mo, V and their oxides, and capable of emitting light of a uniform luminance and exhibiting improved temperature characteristics. A fluorescent display tube is also disclosed using such fluorescent material.