US Patent Issued to FUJIFILM on April 1 for "Hydrophilic porous membrane and method for producing hydrophilic porous membrane" (Japanese Inventors)

ALEXANDRIA, Va., April 2 -- United States Patent no. 12,263,451, issued on April 1, was assigned to FUJIFILM Corp. (Tokyo).

"Hydrophilic porous membrane and method for producing hydrophilic porous membrane" was invented by Akihiro Ishii (Minami-ashigara, Japan), Tetsuro Mitsui (Minami-ashigara, Japan) and Takeshi Umehara (Minami-ashigara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a hydrophilic porous membrane including a porous membrane and a hydroxyalkyl cellulose (preferably, hydroxypropyl cellulose) retained in the porous membrane, the hydroxyalkyl cellulose having a weight-average molecular weight of 10,000 or more and less than 110,000. The hydrophilic porous membrane of embodimen...