ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,898, issued on Sept. 16, was assigned to NICHIAS Corp. (Tokyo).

"Porous body" was invented by Hikari Sasaki (Tokyo), Kei Tsukada (Tokyo), Kazutaka Murayama (Tokyo), Keiji Tsukahara (Tokyo), Kazuki Soeda (Tokyo) and Hironari Fujiki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A porous body including an inorganic fiber and an organic binder, wherein the average fiber diameter of the inorganic fiber is 2.0 micro metre or less, the amount of the inorganic fiber is 90% by mass or more, the amount of the organic binder is 0.5% by mass or more and 10% by mass or less, the organic binder contains an elastomer, and the bulk density of the porous bo...