Hoya Assigned Patent

Hoya Corporation, Tokyo, Japan, has been assigned a patent (11869538) developed by Miura, Masafumi, Chaing Mai Province, Thailand, Hashimoto, Kazuaki, Akiruno, Japan, and Higuchi, Naoyuki, Kokubunji, Japan, for “method for manufacturing glass spacer, glass spacer, and hard disk drive device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method for manufacturing a ring-shaped glass spacer to be arranged in contact with a magnetic disk in a hard disk drive device includes processing for forming a film on the surface of a glass spacer main body, which is the base of the glass spacer. In the processing, the film is formed by passing the glass spacer main body through a location where the components of the film are in a spray state while an outer circumferential edge surface of the glass spacer main body is being rotated in a circumferential direction thereof.”

The patent application was filed on 2021-03-08 (17/909583).