ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,438, issued on Oct. 20, was assigned to Daifuku Co. Ltd. (Osaka, Japan).
"Article transport facility and traveling vehicle" was invented by Tomohiko Kawashima (Shiga, Japan) and Yasunobu Matsuo (Shiga, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A risk of a deterioration in detection performance of an identifier is reduced. An article transport facility includes: a first rail; a second rail; and a first traveling vehicle that has a first wheel which rolls on an upper surface of the first rail, a first roller which rolls on a side surface of the first rail, and a second roller which rolls on an upper surface of the second rail, an identifier...