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:
Jun. 26, 2012
Filed:
Jun. 02, 2010
Hiromi Tada, Numazu, JP;
Masafumi Ohta, Susono, JP;
Tatsuya Niimi, Numazu, JP;
Norio Nagayama, Numazu, JP;
Yoshiki Yanagawa, Numazu, JP;
Yuuji Tanaka, Namazu, JP;
Hiromi Tada, Numazu, JP;
Masafumi Ohta, Susono, JP;
Tatsuya Niimi, Numazu, JP;
Norio Nagayama, Numazu, JP;
Yoshiki Yanagawa, Numazu, JP;
Yuuji Tanaka, Namazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrophotographic photoreceptor, including an electroconductive substrate; and a photosensitive layer overlying the substrate, wherein the photosensitive layer comprises a complex azo pigment comprising an azo compound having the following formula (a):A(H)  (a)wherein A represents a residue of an azo compound, bonded with n pieces of hydrogen atom through one or more heteroatom being N or O and forming a part of the residue A; H represents a hydrogen atom; and n represents an integer of from 1 to 9,and a pigment.