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. 14, 1990
Filed:
Oct. 07, 1988
Applicant:
Inventors:
Yukihiko Shimizu, Mobara, JP;
Toshimitsu Fuyuki, Mobara, JP;
Toru Teshigawara, Ebina, JP;
Kazuo Terao, Ebina, JP;
Atsushi Kasao, Ebina, JP;
Assignees:
Futaba Denshi Kogyo Kabushiki Kaisha, Mobara, JP;
Fuji Xerox Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ; 346160 ; 3461 / ;
Abstract
A fluorescent printer head capable of rendering luminance of dot-like anodes along its main scanning direction uniform and stable to improve quality of printing in an optical printer. The fluorescent printer head includes dot-like anodes constituting a luminous area, control electrodes having apertures formed at positions corresponding to the dot-like anodes, and at least one filamentary cathode stretched above the control electrode extending along the middle portion of the luminous area.