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:
Nov. 09, 2010
Filed:
Jul. 12, 2007
Shigeru Obata, Ibaraki, JP;
Masahiro Yagi, Ibaraki, JP;
Yoshihiro Fukuhata, Hyogo, JP;
Shin Yamamoto, Osaka, JP;
Toshio Ogiso, Ibaraki, JP;
Shigeru Obata, Ibaraki, JP;
Masahiro Yagi, Ibaraki, JP;
Yoshihiro Fukuhata, Hyogo, JP;
Shin Yamamoto, Osaka, JP;
Toshio Ogiso, Ibaraki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A pressurizing member includes an elastic member having a uniform elastic modulus of K=EA/t, where E is a Young's modulus, A is an area of the nip portion, and t is a thickness of the elastic member in the direction of application of load. A supporting member that supports the pressurizing member has an entering portion, an exit portion, and a center portion between the entering portion and the exit portion. The thickness of the center portion in a direction of application of load is larger than thicknesses of the entering portion and the exit portion in the direction of application of load so that the supporting unit has a convex portion.