US Patent Issued to Ricoh on Sept. 16 for "Toner, developing agent, toner stored unit, and image forming apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,872, issued on Sept. 16, was assigned to Ricoh Co. Ltd. (Tokyo).

"Toner, developing agent, toner stored unit, and image forming apparatus" was invented by Ryuuta Yoshida (Shizuoka, Japan), Toma Takebayashi (Shizuoka, Japan), Akio Takei (Shizuoka, Japan) and Yasuo Kamada (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a toner having excellent low-temperature fixing, heat-resistant-storage property, cleaning performance, and filming resistance. A toner containing toner base particles having a crystalline polyester resin and an amorphous polyester resin includes a plurality of organic particles disposed ...