US Patent Issued to FUJIFILM Business Innovation on July 29 for "Toner manufacturing method and toner" (Japanese Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,890, issued on July 29, was assigned to FUJIFILM Business Innovation Corp. (Tokyo).

"Toner manufacturing method and toner" was invented by Yuta Saeki (Kanagawa, Japan), Takahiro Yamashita (Kanagawa, Japan), Kazuhiko Nakamura (Kanagawa, Japan) and Yuji Isshiki (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner manufacturing method includes a first step of filtering toner particles obtained by a wet manufacturing method, a second step of squeezing the toner particles and making water pass through the toner particles, and a third step of squeezing the toner particles and ventilating compressed air through the toner particles, in wh...