ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,431, issued on Oct. 7, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Metal porous sheet, fuel cell, and water electrolysis device" was invented by Koma Numata (Osaka, Japan), Masatoshi Majima (Osaka, Japan), Mitsuyasu Ogawa (Osaka, Japan), Takahiro Higashino (Osaka, Japan), Kazuki Okuno (Osaka, Japan) and Hiromasa Tawarayama (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A metal porous sheet includes a metal porous body having a skeleton with a three-dimensional network structure, and has a main surface in which a trench is formed. A depth of the trench is more than or equal to 10 percent of a thickness of the metal...