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:
Mar. 07, 1978
Filed:
Nov. 21, 1975
Applicant:
Inventors:
Koji Imaizumi, Aichiken, JA;
Shigemitsu Shimizu, Toyokawa, JA;
Assignee:
Minolta Camera Kabushiki Kaisha, Azuchi, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 10 ; 427 15 ;
Abstract
A developing device employing developing solution for use in an electrophotographic copying apparatus, which developing device includes a pair of stirring impellers rotatably disposed at the bottom of a developing tank and a plurality of pairs of copy paper feeding and electrode rollers immersed in the developing solution above the impellers, with one of the roller pairs being associated for simultaneous rotation with the impellers for efficient circulation of the developing solution, and for rapid and uniform dispersion of toner particles in the developing solution.