US Patent Issued to CANON on June 23 for "Toner" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,734, issued on June 23, was assigned to CANON K.K. (Tokyo).

"Toner" was invented by Tomohisa Sano (Shizuoka, Japan), Kazuyuki Sato (Kanagawa, Japan) and Tohru Hiramatsu (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner comprising a toner particle comprising a binder resin, a crystalline material, and a silica particle, wherein a number average particle diameter D1 of the silica particle comprised in the toner particle is 400 to 3000 nm; the silica particle has a pointed portion; and the crystalline material comprises a compound having an ester group."

The patent was filed on June 24, 2022, under Application No. 17/808,807.

*F...