ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,887, issued on Aug. 5, was assigned to NIPPON SHARYO LTD. (Nagoya, Japan).
"Fire-resistant floor structure of railroad vehicle" was invented by Tetsuro Sato (Toyokawa, Japan), Hiroki Uchikawa (Toyokawa, Japan), Atsushi Shirai (Toyohashi, Japan) and Yuta Mano (Toyoake, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A railroad vehicle fire-resistant floor structure with improved fire resistance against underfloor fires includes a mounting part for installing underfloor equipment on the lower surface of an underframe, and a fire-resistant member. The fire-resistant member is a fire-resistant coating applied to the lower surface of the underframe. ...