GENEVA, Nov. 25 -- HOYA CORPORATION (6-10-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo1608347), ＨＯＹＡ株式会社 (東京都新宿区西新宿六丁目１０番１号) filed a patent application (PCT/JP2025/017254) for "MAGNETIC DISK, MAGNETIC DISK SUBSTRATE, AND USAGE OF MAGNETIC DISK SUBSTRATE, AND METHOD FOR MANUFACTURING MAGNETIC DISK" on May 12, 2025. With publication no. WO/2025/239331, the details related to the patent application was published on Nov 20, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Pro...