US Patent Issued to Western Digital Technologies on Feb. 17 for "Magnetic recording disk with high internal stress to reduce disk deflections from shock forces and methods for use with the disk" (California Inventor)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,601, issued on Feb. 17, was assigned to Western Digital Technologies Inc. (San Jose, Calif.).

"Magnetic recording disk with high internal stress to reduce disk deflections from shock forces and methods for use with the disk" was invented by Shoji Suzuki (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disks for use in hard disk drives (HDD) or other magnetic recording apparatus. The disks are configured based on a finding that internal stress within a disk can make the disk more resistant to shock forces. In one example, a disk is provided that has a substrate with a thickness of no more than 0.5 millimeters and an internal stress no...