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:
Jan. 28, 2020
Filed:
Jun. 19, 2019
Hidetoshi Kami, Shizuoka, JP;
Tomoharu Asano, Kanagawa, JP;
Hidetoshi Kami, Shizuoka, JP;
Tomoharu Asano, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrophotographic photoconductor is provided. The electrophotographic photoconductor includes a conductive substrate, a photosensitive layer, and a surface layer containing fluororesin particles, non-fluororesin particles, and a cured resin. The fluororesin particles have an average particle diameter of from 0.01 to 0.3 μm in a cross-sectional image of the surface layer as observed by a scanning electron microscope with a magnification of 5,000 times, and when the cross-sectional image is segmented into uniform regions each being 1 μm×4 μm, a standard deviation of areas each of which is occupied by the fluororesin particles and the non-fluororesin particles in each of the regions is 0.2 μmor less.