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:
May. 17, 2011
Filed:
Nov. 29, 2007
Ryuji Inoue, Hyogo, JP;
Shuuichi Nakagawa, Osaka, JP;
Shin Murayama, Hyogo, JP;
Rumi Konishi, Osaka, JP;
Shintaro Yamada, Toyko, JP;
Kazushige Oonishi, Tokyo, JP;
Ryuji Inoue, Hyogo, JP;
Shuuichi Nakagawa, Osaka, JP;
Shin Murayama, Hyogo, JP;
Rumi Konishi, Osaka, JP;
Shintaro Yamada, Toyko, JP;
Kazushige Oonishi, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developer regulating member capable of stably regulating the thickness of a developer even when used for a long time, while preventing the increase in the production cost, a developing device having the developer regulating member, an image forming apparatus having the developing device, a process cartridge, and a method of producing the developer regulating member. The average crystal particle diameter D [μm] of a plate-like member provided in a layer-thinning blade which functions as the developer regulating member and which abuts against a developing roller functioning as a developer carrier, and the curvature radius R [μm] of a bent portion satisfy the relationship of D≦60.53×R×10−12.61.