US Patent Issued to AOMI CONSTRUCTION on Sept. 8 for "Underwater positioning system and method" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,181, issued on Sept. 8, was assigned to AOMI CONSTRUCTION Co. LTD. (Tokyo).

"Underwater positioning system and method" was invented by Tohru Yoshihara (Tokyo), Tadashi Ebihara (Tsukuba, Japan) and Koichi Mizutani (Tsukuba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An underwater positioning system for accurate underwater positioning. At least one among at least one acoustic transmitter and at least one hydrophone is provided at known coordinates and which positions an unknown point having unknown coordinates at which another acoustic transmitter or hydrophone is provided, includes a time window that stores in advance, when the unknown poin...