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:
Jul. 14, 1981
Filed:
Jan. 15, 1979
Applicant:
Inventor:
Junji Kurokawa, Tokyo, JP;
Assignee:
Ricoh Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 10 ; 118662 ; 355 77 ; 430103 ; 430117 ;
Abstract
The present invention provides a developing method for electrophotography which is developed to perform the development by electrically insulating the developing electrode from the support of the photosensitive material, together with apparatuses suitable for practicing said method. This developing method is applicable to both the wet inversion development and the magnetic brush inversion development, and produces a negative-positive image having a satisfactory reproducibility particularly with respect to the solid image area thereof.