Nok Corporation

Asami Uematsu

Atsushi Ikeda

Kenji Sasaki

Shogo Suzuki

Satoshi Fukuoka

Kosuke Oura

A charging roll includes a core member, a rubber base material disposed around the core member, and a surface layer disposed around the rubber base material. The ten point height of irregularities Rof a surface of the surface layer is equal to or greater than 3.9 micrometers, and is equal to or less than 6.1 micrometers. The mean spacing between peaks Sof the surface of the surface layer is equal to or greater than 12.5 micrometers and is equal to or less than 13.5 micrometers.

Growing community of inventors

Fujisawa, Japan

Asami Uematsu