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:
Nov. 09, 1976
Filed:
Aug. 21, 1974
Applicant:
Inventor:
Hiroshi Katakura, Hachioji, JA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118637 ;
Abstract
A control circuit used in the development of electrostatic latent images which applies a suitable biasing voltage to a magnetic brush developing unit to alleviate problems of fogging and breakdown of the photosensitive layer. The effective biasing voltage remains unchanged as the characteristics of the developer, such as electric resistivity, change with increased use.