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:
Apr. 06, 1999
Filed:
May. 20, 1997
Masahide Kinoshita, Shizuoka-ken, JP;
Kazuhisa Kemmochi, Mishima, JP;
Tetsuya Kobayashi, Numazu, JP;
Takashi Shibuya, Shizuoka-ken, JP;
Yoshiro Saito, Numazu, JP;
Arihiro Yamamoto, Tokyo, JP;
Yasunari Watanabe, Susono, JP;
Tsuyoshi Nakagawa, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developer regulating member includes a thin plate having a spring property and a polyamide-containing rubber layer disposed on the thin plate. The polyamide-containing rubber layer contains a polyamide having the Shore D hardness between 25 and 65 both inclusive. A developing apparatus includes a developer container for containing a monocomponent developer of negative charging property, a developer carrying member provided in an opening portion of the developer container, for carrying the developer, and a regulating member for forming a nip together with the developer carrying member and regulating a thickness of a developer layer on the developer carrying member. A surface of the regulating member forming the nip is comprised of a polyamide-containing rubber layer containing a polyamide having the Shore D hardness between 25 and 65 both inclusive.