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:
Oct. 03, 2023
Filed:
May. 05, 2022
Applicant:
Sumitomo Riko Company Limited, Aichi, JP;
Inventors:
Satoshi Endo, Aichi, JP;
Kengo Fujii, Aichi, JP;
Kentaro Imai, Aichi, JP;
Satoshi Tatsumi, Aichi, JP;
Assignee:
Sumitomo Riko Company Limited, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0808 (2013.01); G03G 15/08 (2013.01); G03G 15/0818 (2013.01);
Abstract
The disclosure provides a development roll for electrophotographic apparatuses. The development roll for electrophotographic apparatuses includes: a shaft; an elastic layer formed on an outer circumferential surface of the shaft; a surface layer formed on an outer circumferential surface of the elastic layer; and an end protection layer formed on an outer circumferential surface of the surface layer at both ends in an axial direction. The end protection layer contains a binder polymer and a surface modification agent that has a cyano group.