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.

Date of Patent:
Nov. 15, 2016

Filed:

Mar. 13, 2012
Applicants:

Hironobu Morishita, Chiba, JP;

Takaaki Hikosaka, Chiba, JP;

Inventors:

Hironobu Morishita, Chiba, JP;

Takaaki Hikosaka, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/04 (2006.01); G03G 5/07 (2006.01); C08L 69/00 (2006.01); G03G 5/05 (2006.01); G03G 5/147 (2006.01);
U.S. Cl.
CPC ...
G03G 5/076 (2013.01); C08L 69/00 (2013.01); G03G 5/056 (2013.01); G03G 5/0564 (2013.01); G03G 5/14752 (2013.01); G03G 5/14756 (2013.01);
Abstract

An electrophotographic photoreceptor that satisfies excellent transparency, abrasion resistance, and electrophotographic properties (including sensitivity and residual potential after light irradiation) all together is provided. Specifically, an electrophotographic photoreceptor and a resin composition that include therein (1) a polycarbonate resin (A) having a structural unit represented by the following formula (I) and (2) at least one selected from a polycarbonate resin (B) synthesized from a source material that includes therein a bisphenol represented by the following formula (II) and a polyester resin (B') synthesized from a source material that includes therein a bisphenol represented by the following formula (II). In formulas (I) and (II), each of R, R, R, R, R, and Rrepresents, independently from one another, a substituted or non-substituted alkyl group, a substituted or non-substituted cycloalkyl group, or a substituted or non-substituted phenyl group. Each of p, q, r, s, t, and u represents, independently from one another, an integer of 0 to 4. Rrepresents an alkyl group. X represents an alkylene group, an isopropylidene group, a sec-butylidene group, a cycloalkylene group, a cycloalkylidene group, or the like. Y represents a single bond or —O—. Each of mand nrepresents a composition ratio (mole ratio) of the structural unit in the round brackets.


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