US Patent Issued to Honda Motor on Jan. 13 for "Volume estimating device, hydrogen filling device, and volume estimating method" (Japanese Inventor)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,997, issued on Jan. 13, was assigned to Honda Motor Co. Ltd. (Tokyo).

"Volume estimating device, hydrogen filling device, and volume estimating method" was invented by Kiyoshi Handa (Wako, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A volume estimating device includes: a gas density acquiring section that acquires a first gas density and a second gas density; an expansion rate acquiring section that acquires a first corrected expansion rate and a second corrected expansion rate; a filling amount acquiring section that acquires a total filling amount; and a volume estimating section that estimates a volume of a hydrogen tank based on a volum...