US Patent Issued to Ricoh on Oct. 20 for "Resin particles, method of producing resin particles, toner, toner storage unit, and image forming apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,815, issued on Oct. 20, was assigned to Ricoh Co. Ltd. (Tokyo).

"Resin particles, method of producing resin particles, toner, toner storage unit, and image forming apparatus" was invented by Tsuneyasu Nagatomo (Shizuoka, Japan), Junichi Watanabe (Shizuoka, Japan), Yuka Mizoguchi (Shizuoka, Japan) and Kohsuke Satoh (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Resin particles include a binder resin in each of the resin particles. The binder resin includes a biomass-derived resin, and polyethylene terephthalate or polybutylene terephthalate. An amount A of a biomass-derived component of the biomass-derived resin and an amount B of th...