Bridgestone Corporation

Minoru Satoyoshi

Yoshitomo Masuda

Gaku Yakushiji

Yasushi Inoue

Disclosed is an electric charging member for charging a body to be charged by bringing the electric charging member in contact with the body to be charged and applying a voltage between the electric charging member and the body to be charged, including: an elastic layer; and a covering layer formed on the outer side of the elastic member directly or through another layer; wherein the covering layer is formed of a coating having a storage modulus (G') in a range of 1.times.10.sup.7 dyn/cm.sup.2 or less, and also having tan .delta., expressed by a ratio (G'/G') of a loss modulus (G') to the storage modulus (G'), in a range of 0.01 to 0.4. The electric charging member is allowed to suppress occurrence of compressive deformation and to reduce noise due to electrification.

Growing community of inventors

Yokohama, Japan

Minoru Satoyoshi