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:
Dec. 18, 2007
Filed:
Sep. 17, 2004
Applicants:
Yuko Arizumi, Kanagawa, JP;
Masayuki Shoshi, Kanagawa, JP;
Inventors:
Yuko Arizumi, Kanagawa, JP;
Masayuki Shoshi, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a highly sensitive and highly durable electrophotographic photoconductor, electrophotography, photographic apparatus and process cartridge for the electrophotographic apparatus which is practical for a high-speed copying machine as well as for a laser printer. The electrophotographic photoconductor includes a photoconductive layer on a conductive support, in which the photoconductive layer contains an azo compound expressed by Formula (1) and wherein at least one of 'Cp' and 'Cp' contains a coupler residue selected from Formula (2), Formula (3) and Formula (4).