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:
Jan. 03, 1989
Filed:
Jun. 02, 1986
Applicant:
Inventor:
Fumio Asano, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358280 ; 358294 ; 315362 ;
Abstract
A voltage having a polarity opposite to that of a voltage used applied to a light source in a period for reading or recording of a picture image is applied to the light source during predetermined periods other than the operational period to realize restoration of luminance of the light source, prolongation of operational life of the light source and high speed reading or recording speed.