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:
Feb. 08, 1977
Filed:
Mar. 14, 1975
Eisuke Ishida, Nara, JA;
Yuji Takashima, Osaka, JA;
Hisanori Nishiguchi, Neyagawa, JA;
Fujio Oda, Ashiya, JA;
Abstract
The present invention relates to an electrophotographic color process comprising the steps of: (a) charging an electrophotographic light-sensitive material by corona discharge, said material having at least two kinds of color-producing photoconductive particles disposed at random on an electroconductive support, said color-producing photoconductive particles consisting essentially of a photoconductive particle, a sensitizer and a leuco dye, (b) exposing said charged material to light, (c) developing said material by toner containing acid substance, and producing color in the leuco dye by the interaction of the leuco dye with the acid substance, and forming a color image by carrying out once the procedure of charging, exposing and developing. An electrophotographic light-sensitive material comprising an electroconductive support and a photoconductive layer consisting of at least two kinds of color-producing photoconductive particles disposed at random on the support, said color-producing photoconductive particles consisting essentially of a photoconductive particle, a sensitizer and a leuco dye.