ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,303, issued on Aug. 26, was assigned to Science Co. Ltd. (Osaka, Japan).
"Showerhead and bubble generating unit" was invented by Yasuhiro Mizukami (Osaka, Japan), Masateru Hirae (Osaka, Japan), Takahiro Okumura (Osaka, Japan) and Hidetake Tanaka (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shower head to jet an air bubble-liquid mixture by mixing air bubbles into the liquid includes a shower nozzle, a flow-adjustment piece, and air introduction passages. The shower nozzle includes an air bubble mixing space. The flow-adjustment piece is arranged in the air bubble mixing space. The air introduction passages cause air to flow into th...