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:
Apr. 16, 2013
Filed:
Dec. 18, 2009
Kohichi Ohshima, Shizuoka-ken, JP;
Hidetoshi Kami, Shizuoka-ken, JP;
Yukio Fujiwara, Shizuoka-ken, JP;
Kazuhiro Egawa, Shizuika-ken, JP;
Kohichi Ohshima, Shizuoka-ken, JP;
Hidetoshi Kami, Shizuoka-ken, JP;
Yukio Fujiwara, Shizuoka-ken, JP;
Kazuhiro Egawa, Shizuika-ken, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrophotographic photoreceptor, including an electroconductive substrate; a photosensitive layer, located overlying the electroconductive substrate; and an outermost layer comprising a convexity, wherein each of the outermost layer and the convexity includes a crosslinked body including a structural unit having a same charge transportable structure, and wherein the number of convexity having a height not less than ½×RzJIS is from 30 to 300 in a measurement length of 12 mm, wherein RzJIS is an average of ten-point mean roughness specified in JIS B0601 of 2001 and measured at least 4 random positions in an area the outermost layer is formed on, and wherein the height of the convexity is a distance from the deepest valley to a top of the convexity in the measurement length of 12 mm.