ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,844, issued on Nov. 3, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Traveling device for wheeled vehicle" was invented by Yuutarou Iwabuchi (Ushiku, Japan), Shinichiro Hagihara (Tsuchiura, Japan), Takahiro Sato (Ami-machi, Japan), Akinori Kondo (Tsukuba, Japan), Rio Kawada (Tsuchiura, Japan) and Yoko Miyahara (Ushiku, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A traveling device (11) includes a cylindrical spindle (12) that rotatably supports a wheel attaching cylinder (17) to which a wheel (7) is attached, an electric motor (13) attached to the spindle (12), a motor shaft (14) that projects from the electric motor (13)...