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:
Dec. 27, 2011
Filed:
Mar. 12, 2008
Hidetoshi Kami, Numazu, JP;
Tetsuro Suzuki, Fuji, JP;
Hiroshi Tamura, Susono, JP;
Hiroshi Ikuno, Yokohama, JP;
Yukio Fujiwara, Numazu, JP;
Takafumi Iwamoto, Numazu, JP;
Hidetoshi Kami, Numazu, JP;
Tetsuro Suzuki, Fuji, JP;
Hiroshi Tamura, Susono, JP;
Hiroshi Ikuno, Yokohama, JP;
Yukio Fujiwara, Numazu, JP;
Takafumi Iwamoto, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An object of the present invention is to provide an electrophotographic photoconductor having an extremely low increase in friction coefficient and wear, while also having superior cleanability even after long-term or large-volume printing, and to provide an electrophotographic apparatus for forming an image using a polymerization toner without providing a unit for externally supplying a lubricant to a photoconductor. Namely, the present invention provides an electrophotographic photoconductor having a photosensitive layer and a crosslinked resin surface layer over a conductive substrate, wherein the crosslinked resin surface layer at least contains trimethylolpropane triacrylate, a dimethylpolysiloxane having a radically polymerizable functional group, and lubricating fine particles.