US Patent Issued to CANON on Sept. 30 for "Toner and method for producing toner" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,790, issued on Sept. 30, was assigned to CANON K.K. (Tokyo).

"Toner and method for producing toner" was invented by Tsuneyoshi Tominaga (Shizuoka, Japan) and Daisuke Yoshiba (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner comprising: a toner particle comprising a binder resin and boric acid; wherein the binder resin comprises an amorphous resin and a crystalline polyester resin, a content of the crystalline polyester resin in the toner is 30.00 to 80.00 mass %, and a content of the boric acid in the toner is 0.10 to 10.00 mass %."

The patent was filed on July 21, 2022, under Application No. 17/814,102.

*For further informa...