ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,250, issued on Nov. 25, was assigned to Kawasaki Jukogyo K.K. (Kobe, Japan).

"Traveling car" was invented by Yudai Harada (Kobe, Japan) and Masato Yamamoto (Kobe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A traveling car includes a car body and a driver. The driver has a motor that is attached to the car body, a drive wheel, a support that supports the drive wheel, and a transmission that transmits rotary drive force to the drive wheel. The support has a holder that rotatably supports the drive wheel and is attached to the car body so as to rotate about a rotation axis M extending in the horizontal direction. The transmission has an outpu...