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:
Sep. 29, 2015
Filed:
Jul. 03, 2014
Shohei Gohda, Kanagawa, JP;
Shinji Nohsho, Tokyo, JP;
Masanobu Gondoh, Kanagawa, JP;
Kaori Toyama, Kanagawa, JP;
Yohta Sakon, Kanagawa, JP;
Masahiro Ohmori, Kanagawa, JP;
Shohei Gohda, Kanagawa, JP;
Shinji Nohsho, Tokyo, JP;
Masanobu Gondoh, Kanagawa, JP;
Kaori Toyama, Kanagawa, JP;
Yohta Sakon, Kanagawa, JP;
Masahiro Ohmori, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A cleaning blade includes an elastic member configured to come into contact with a surface of a member to be cleaned and remove residual matter adhering to the surface of the member to be cleaned. The elastic member satisfies the following requirements a and b: a. The elastic member has a contact portion configured to come into contact with the surface of the member to be cleaned and the contact portion includes a modified layer that contains a cured product of an ultraviolet curable composition containing a (meth)acrylate compound; and b. A value obtained by normalizing a peak area ratio S/Sof a modified portion with a peak area ratio S'/S′ of a portion outside the modified layer is 1.5 or more and 10 or less where Sis a peak area value at 1162 cmand Sis a peak area value at 1533 cmobtained by infrared microspectrometry, and the modified portion is a region that extends 100 μm in a contact portion thickness inward direction from the contact portion on a plane that lies at an equal distance from two surfaces constituting the contact portion.