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:
May. 19, 1981
Filed:
Apr. 23, 1979
Applicant:
Inventors:
Nin-ichi Kamogawa, Hachioji, JP;
Yoshio Yamazaki, Hachioji, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118658 ; 355 / ;
Abstract
A magnetic brush developing apparatus for use in an electrostatic recording machine has a peripheral surface rotatable for carrying a single-component developer through magnetic field zones of adjacently alternating polarities including feed-in and feedback zones on opposite sides of a developing zone. The relative strengths of the fields are arranged so that the magnetic field density concentration point is offset from the developing zone so as to prevent image degradation by accumulation of excess developer at the developing zone.