US Patent Issued to UNICHARM on July 22 for "Method for producing recycled pulp fibers, and recycled pulp fibers" (Japanese Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,364,629, issued on July 22, was assigned to UNICHARM Corp. (Ehime, Japan).

"Method for producing recycled pulp fibers, and recycled pulp fibers" was invented by Takayoshi Konishi (Kanonji, Japan), Toshio Hiraoka (Kanonji, Japan) and Noritomo Kurita (Kanonji, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The purpose of the present invention is to provide a method for producing recycled pulp fibers such that articles using the recycled pulp fibers can easily achieve a uniform whiteness and users are not prone to feel psychological resistance to articles using the recycled pulp fibers. This method is described below. The method is characterized by i...