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. 20, 2015
Filed:
Apr. 22, 2015
Sumitomo Riko Company Limited, Komaki-shi, Aichi, JP;
Hiroyuki Mori, Shizuoka, JP;
Simpei Miyagawa, Shizuoka, JP;
Yasunori Nimura, Aichi, JP;
Katsumi Okashita, Aichi, JP;
Shota Hayashi, Aichi, JP;
SUMITOMO RIKO COMPANY LIMITED, Aichi, JP;
Abstract
A blade memberis used for removal of residual tonerremaining on a surface of a counterpart memberin an image forming device employing an electrophotographic system, by sliding contact with the counterpart member. The blade memberincludes a blade bodymade of a polyurethane rubber using diphenylmethane diisocyanate and a polyester polyol as main raw materials, and a filmthat covers at least a surface of a sliding contact portion of the blade bodyto contact with the counterpart member. The polyurethane rubber has an international rubber hardness degree of 65 to 85 IRHD, a tan δ peak temperature of 8° C. or lower, and a tan δ peak value of 1.1 or less. The filmcontains a hydrocarbon polymer as a main component.