US Patent Issued to BANDAI on Sept. 1 for "Yo-yo" (Japanese, American Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,094, issued on Sept. 1, was assigned to BANDAI Co. LTD. (Tokyo).

"Yo-yo" was invented by Kazuyuki Sugimatsu (Tokyo), Kenta Kai (Tokyo), Yuki Omure (Tokyo) and Hans Van Dan Elzen (Chandler, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A yo-yo includes: a shaft member; a string member supported by the shaft member; a first rotation portion rotatable around the shaft member; and a second rotation portion rotatable around the shaft member and rotatable relative to the corresponding first rotation portion. The second rotation portion is provided outside the first rotation portion in a direction in which the shaft member extends, the second rotati...