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:
Feb. 06, 1990
Filed:
Sep. 30, 1988
Applicant:
Inventors:
Takao Kishino, Mobara, JP;
Minoru Katayama, Mobara, JP;
Kazuyuki Yano, Mobara, JP;
Isao Ohtsuka, Mobara, JP;
Assignee:
Futaba Denshi Kogyo K.K., Mobara, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313496 ; 313497 ;
Abstract
A fluorescent display device capable of eliminating a display defect and exhibiting high luminance to improve quality of a luminous display and provide the display with good visibility. The fluorescent display device is the plane grid type and includes, in place of mesh-like grids, plane grids of a three-layer structure comprising metal film sections, insulating layer sections and conductive layer sections.