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:
Sep. 11, 2007
Filed:
Jul. 19, 2004
Akihiro Sugino, Numazu, JP;
Shinji Nousho, Numazu, JP;
Takaaki Ikegami, Susono, JP;
Eiji Kurimoto, Numazu, JP;
Hideo Nakamori, Numazu, JP;
Hidetoshi Kami, Numazu, JP;
Yasuyuki Yamashita, Numazu, JP;
Akihiro Sugino, Numazu, JP;
Shinji Nousho, Numazu, JP;
Takaaki Ikegami, Susono, JP;
Eiji Kurimoto, Numazu, JP;
Hideo Nakamori, Numazu, JP;
Hidetoshi Kami, Numazu, JP;
Yasuyuki Yamashita, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrophotographic photoreceptor including an electroconductive substrate and a photosensitive layer located overlying the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor includes a particulate fluorine-containing resin, and wherein a primary particle of the particulate fluorine-containing resin and a secondary particle formed of agglomerated primary particles thereof, which are projected from a surface of the outermost layer and have an average particle diameter of from 0.15 to 3 μm, are present in an area ratio not less than 10% based on total surface area of the outermost layer.