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:
Jul. 04, 2006
Filed:
Jul. 01, 2004
Shinichi Kawamura, Shizuoka, JP;
Masaomi Sasaki, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Kohkoku RI, Shizuoka, JP;
Susumu Suzuka, Kanagawa, JP;
Katsuhiro Morooka, Kanagawa, JP;
Shinichi Kawamura, Shizuoka, JP;
Masaomi Sasaki, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Kohkoku Ri, Shizuoka, JP;
Susumu Suzuka, Kanagawa, JP;
Katsuhiro Morooka, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrophotographic photoconductor has an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a structural unit of formula (2) and a structural unit with charge transporting properties, each of the structural units being contained in an amount of 5 wt. % or more of the total weight of the polycarbonate resin. There is disclosed an aromatic polycarbonate resin having a structural unit of formula (1) and the structural unit of formula (2), with the relationship between the composition ratios being 0<k/(k+j)<1 when the composition ratio of the structural unit (1) is k and that of the structural unit (2) is j, or an aromatic polycarbonate resin having a repeat unit of formula (3). The formulas (1) to (3) are specified in the specification.