ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,464, issued on Nov. 4, was assigned to Sumitomo Riko Co. Ltd. (Aichi, Japan).
"Charging roll for electrophotographic equipment" was invented by Shinkichi Kashihara (Aichi, Japan), Junichiro Suenaga (Aichi, Japan), Akitoshi Morita (Aichi, Japan) and Takeru Horiuchi (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a charging roll for electrophotographic equipment with which any increase in resistance and any bleeding of ionic electroconductive agent while energization persists can be minimized. A charging roll 10 for electrophotographic equipment, the charging roll 10 comprising a shaft body 12 and an elastic layer 14 that is fo...