Sumitomo Riko Company Limited

Simpei Miyagawa

Yasunori Nimura

Shota Hayashi

Katsumi Okashita

Hiroyuki Mori

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 &#x3b4; peak temperature of 8&#xb0; C. or lower, and a tan &#x3b4; peak value of 1.1 or less. The filmcontains a hydrocarbon polymer as a main component.

Growing community of inventors

Shizuoka, Japan

Simpei Miyagawa