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. 27, 2015
Filed:
May. 05, 2014
Kazuhiko Watanabe, Tokyo, JP;
Takaaki Tawada, Kanagawa, JP;
Takatsugu Fujishiro, Tokyo, JP;
Hisashi Kikuchi, Kanagawa, JP;
Kazuhiko Watanabe, Tokyo, JP;
Takaaki Tawada, Kanagawa, JP;
Takatsugu Fujishiro, Tokyo, JP;
Hisashi Kikuchi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A cleaning blade includes a blade member formed of a strip-shaped rubber material and having a leading-edge ridge line portion to contact a moving surface of a cleaning target member and remove adhering matter from the surface of the cleaning target member. The blade member has a Martens hardness of 1.0 N/mmor more in a vicinity of the leading-edge ridge line portion measured from an opposing surface of the blade member, the opposing surface including the leading-edge ridge line portion and opposing the cleaning target member, or measured from a leading-edge surface of the blade member, the leading-edge surface including the leading-edge ridge line portion and disposed adjacent to the opposing surface of the blade member.