ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,748,359, issued on Sept. 29, was assigned to CANON K.K. (Tokyo).

"Toner" was invented by Hiroki Kagawa (Shizuoka, Japan), Tomohisa Sano (Shizuoka, Japan), Kosuke Fukudome (Tokyo), Tohru Hiramatsu (Shizuoka, Japan), Atsuhiko Ohmori (Kanagawa, Japan) and Kazuyuki Sato (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a toner which can form a stable image even in a low print intermittent mode under a low-temperature and low-humidity environment, while having excellent charge rising property. A toner includes a toner particle and a silica fine particle A, wherein (I) in TOF-SIMS measurement of the toner particle...