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. 09, 2018
Filed:
Jul. 08, 2016
Fuji Xerox Co., Ltd., Tokyo, JP;
Fumiaki Mera, Kanagawa, JP;
Nobuyuki Torigoe, Kanagawa, JP;
Masaki Hirakata, Kanagawa, JP;
Hideya Katsuhara, Kanagawa, JP;
Yoichi Kigoshi, Kanagawa, JP;
Satomi Kashiwagi, Kanagawa, JP;
Yuko Iwadate, Kanagawa, JP;
Kenji Kajiwara, Kanagawa, JP;
Tatsuki Sano, Kanagawa, JP;
Takashi Imai, Kanagawa, JP;
Takeshi Iwanaga, Kanagawa, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
An electrophotographic photoreceptor includes an electroconductive substrate, an organic photosensitive layer on the electroconductive substrate and an inorganic protective layer on the organic photosensitive layer, wherein a layer that forms a surface of the organic photosensitive layer contains a charge transporting material, a binder resin, and a silica particle; the inorganic protective layer contains a group 13 element, an oxygen atom, and a hydrogen atom; a sum of element constitution ratios of the group 13 element, the oxygen atom, and the hydrogen atom to all elements constituting the inorganic protective layer is equal to or more than 90 atomic %; and an element composition ratio (oxygen atom/group 13 element) of the oxygen atom and the group 13 element is 1.0 or more and less than 1.5.