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:
Jul. 04, 2017

Filed:

Jan. 29, 2016
Applicant:

Kyocera Document Solutions Inc., Osaka, JP;

Inventors:

Yuko Iwashita, Osaka, JP;

Kazutaka Sugimoto, Osaka, JP;

Takafumi Matsumoto, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/047 (2006.01); G03G 5/06 (2006.01);
U.S. Cl.
CPC ...
G03G 5/047 (2013.01); G03G 5/0614 (2013.01); G03G 5/0672 (2013.01); G03G 5/0696 (2013.01);
Abstract

An electrophotographic photosensitive member includes a photosensitive layer. The photosensitive layer contains a charge generating material and a hole transport material represented by general formula (1) shown below in a single layer. Titanyl phthalocyanine contained as the charge generating material exhibits a main peak at a Bragg angle 2θ±0.2°=27.2° in a CuKα characteristic X-ray diffraction spectrum and satisfies either (B) or (C), shown below, in a differential scanning calorimetry spectrum. (B) A peak is not present in a range from 50° C. to 400° C., other than a peak resulting from vaporization of adsorbed water. (C) A peak is not present in a range from 50° C. to 270° C., other than a peak resulting from vaporization of adsorbed water, and a peak is present in a range from 270° C. to 400° C.


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