US Patent Issued to TOMOEGAWA on Feb. 3 for "Toner particles for developing electrostatically charged image and toner composition for developing electrostatically charged image" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,541,159, issued on Feb. 3, was assigned to TOMOEGAWA Corp. (Tokyo).

"Toner particles for developing electrostatically charged image and toner composition for developing electrostatically charged image" was invented by Yudai Kimura (Shizuoka, Japan), Ikuko Yatsuzuka (Shizuoka, Japan) and Takayuki Sano (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner particle for developing an electrostatically charged image includes a toner base particle and a resin coating covering the toner base particle. The toner base particle includes a recess on a surface of the toner base particle. The recess has a depth of 50 nm to 500 nm. The resin coating ...