UACJ and Furukawa Electric Assigned Patent

UACJ Corporation, Tokyo, Japan, and Furukawa Electric Co., Ltd., Tokyo, Japan, has been assigned a patent (12205616) developed by Kitawaki; Kotaro, Yamada; Ryohei, Todo; Shinpei, and Hatakeyama; Hideyuki, Tokyo, Japan, for “impact resistant magnetic disk device and method for manufacturing impact resistant magnetic disk device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic disk device includes a plurality of disk-shaped magnetic disks, a spacer, a hub, and a clamp. Each of the magnetic disks includes a through-hole in a center section thereof. The spacer is disposed among the magnetic disks, and includes a through-hole in a center section thereof. The hub is inserted into the through-holes of the magnetic disks and the spacers. The clamp presses and holds the magnetic disks and the spacer. At surfaces where the magnetic disks and the spacer or the clamp contact, a flat surface height of an upper surface of at least one magnetic disk that contacts an outer circumference of the spacer or the clamp is lower than a flat surface height of the upper surface of at least one magnetic disk of the magnetic disks that contacts an inner circumference of the spacer or the clamp.”

The patent application was filed on 2022-02-14 (18/547621).