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.

Date of Patent:
May. 17, 1977

Filed:

May. 19, 1975
Applicant:
Inventors:

Ichiro Fukunaga, Nagoya, JA;

Akira Kani, Nagoya, JA;

Shuji Sakanishi, Odawara, JA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
316 19 ; 313217 ; 313220 ; 313497 ;
Abstract

A fluorescent display device comprising a glass base plate fitted thereon with, as the main components, fluorescent material-coated segmentary electrodes, controlling grid electrodes and a cathode for emitting thermal electrons, and a glass panel fusion bonded to said glass base plate so as to cover said electrodes, the fusion bond being effected at much lower temperatures than before.


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