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:
Apr. 16, 2013

Filed:

May. 18, 2007
Applicants:

Hiroe Fuchigami, Odawara, JP;

Kozo Ishio, Odawara, JP;

Inventors:

Hiroe Fuchigami, Odawara, JP;

Kozo Ishio, Odawara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a coating liquid for forming an undercoat layer of an electrophotographic photoreceptor exhibiting high stability. In the coating liquid for forming an undercoat layer of an electrophotographic photoreceptor containing metal oxide particles and a binder resin, the metal oxide particles have a cumulative volume average diameter Dof 0.1 μm or less and a volume particle size distribution width index SD satisfying the following Expression (1) which are measured by a dynamic light-scattering method in the coating liquid for forming an undercoat layer,0.010≦SD≦0.040  (1)where SD=(DD)/2, where Drepresents the particle diameter (μm) at a point of 84% in the cumulative volume particle size distribution curve, and Drepresents the particle diameter (μm) at a point of 16% in the cumulative volume particle size distribution curve.


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