US Patent Issued to Daifuku on Sept. 8 for "Article elevating device" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,733,438, issued on Sept. 8, was assigned to Daifuku Co. Ltd. (Osaka, Japan).

"Article elevating device" was invented by Hiroshi Otsuka (Hinocho, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "While a controller performs an elevation operation that is at least either an operation of lowering a holder or an operation of raising the holder, the controller (i) calculates a unit elevation amount, which is an amount by which the holder is raised or lowered per unit rotation amount of the drive motor in an elevation operation range that is a range of heights of the holder in the elevation operation, in accordance with a change in a diameter of an outer c...