US Patent Issued to Hewlett-Packard Development on Feb. 17 for "Toner particle with amorphous polyester resin" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,209, issued on Feb. 17, was assigned to Hewlett-Packard Development Co. LP (Spring, Texas).

"Toner particle with amorphous polyester resin" was invented by Keiichi Ishikawa (Kanagawa, Japan), Osamu Ieda (Kanagawa, Japan), Takahiro Danno (Kanagawa, Japan) and Akinori Terada (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner particle includes a binder resin, a colorant, and a wax. The binder resin includes an amorphous polyester resin and a crystalline polyester resin. The amorphous polyester resin includes, as monomer units, a first monomer having a pendant group, terephthalic acid, and ethylene glycol."

The patent was filed on ...