ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,336, issued on July 7, was assigned to YOSHINO KOGYOSHO Co. LTD. (Tokyo).

"Trigger-type liquid sprayer" was invented by Kota Sakata (Tokyo) and Kotaro Fujiwara (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A trigger-type liquid sprayer includes a vertical supply tube, a reservoir cylinder into which a liquid that has passed through the inside of the vertical supply tube is supplied, and a reservoir plunger disposed inside the reservoir cylinder and configured to move toward one side in an axial direction in response to supply of a liquid into the reservoir cylinder while being biased toward the other side, and the vertical supply tube has a r...