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. 25, 2003
Filed:
Jun. 17, 1999
Applicant:
Inventors:
Hiroyuki Wada, Mobara, JP;
Junichiro Kogure, Mobara, JP;
Masahiro Kato, Mobara, JP;
Kazuhiko Itakura, Mobara, JP;
Akio Namiki, Mobara, JP;
Yoshinari Okamoto, Mobara, JP;
Toshinori Suzuki, Mobara, JP;
Assignee:
Futaba Corporation, Mobara, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 ; H01J 6/304 ;
U.S. Cl.
CPC ...
H01J 1/62 ; H01J 6/304 ;
Abstract
A fluorescent display device cable of being significantly increased in emission. A grid electrode is formed of a nonleaded conductive paste constituted by Al containing at least one of organic metal and phosphate glass frit by screen printing. This positively prevents precipitation of Pb on the grid electrode due to reduction of PbO by oxidation of Al during calcination of the conductive paste as encountered with the prior art.