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:
Dec. 22, 1998

Filed:

Dec. 16, 1996
Applicant:
Inventors:

Masayuki Takei, Minami-ashigara, JP;

Yuichi Yashiki, Minami-ashigara, JP;

Hideyuki Akagi, Minami-ashigara, JP;

Naoki Ohta, Minami-ashigara, JP;

Yasushi Sakata, Minami-ashigara, JP;

Junichi Tomonaga, Minami-ashigara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; B29D / ;
U.S. Cl.
CPC ...
430126 ; 428 364 ; 428 3691 ; 399276 ;
Abstract

A developing sleeve for electrophotography is disclosed which has a coating film comprising electroconductive and preferably lubricating particles dispersed in an acrylic resin in which the content of components having a molecular weight lower than 500 is not higher than 3% by weight. The developing sleeve is effective in preventing development ghosts while preventing toner dusting during transfer from becoming worse and has a small environmental dependence of developing properties.


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