UACJ and Furukawa Electric Assigned Patent

UACJ Corp.,Tokyo, Japan, and Furukawa Electric Co., Ltd., Tokyo, Japan , has been assigned a patent (11935559) developed by Kitamura, Naoki, Kitawaki, Kotaro, Hatakeyama, Hideyuki, Yamada, Ryohei, and Nakamura, Toshihiro, Tokyo, Japan, for a “magnetic disk device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “This magnetic disk device is a 3.5-inch magnetic disk device equipped with magnetic disks formed from an aluminum alloy substrate. The magnetic disks arranged in a stacked manner have a thickness Td of 0.3 mm to 0.6 mm, the number N of magnetic disks involved is 10 to 16, and spacers disposed between the magnetic disks have an outside diameter 2 Rso of 35 mm to 65 mm. The outside diameter 2 Rso (mm) of the spacers satisfies 2 Rso??60 Td+70 and 2 Rso??0.5 N.sup.2?+16.5 N?73.”

The patent application was filed on 2021-11-11 (18/252076).