ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,725, issued on March 24, was assigned to Yoshino Kogyosho Co. Ltd. (Tokyo).
"Liquid filling apparatus" was invented by Mitsuaki Isahai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid filling apparatus that fills a filled object with a liquid, the liquid filling apparatus includes: a liquid supply portion; a nozzle that includes a supply port and a sealing surface; a driving rod arranged inside a liquid supply channel so as to be freely movable in a vertical direction; and a sealing member fixed to the driving rod, wherein a gap is provided between a support surface of the driving rod and a facing surface of the sealing member."
The ...