Patents by Inventor John Bianchini

John Bianchini has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hard disk drive disk media curvature mitigation
    Patent number: 12387755
    Abstract: A hard disk drive includes multiple disk media mounted on a spindle, where the outer diameter of each disk medium is offset from the inner diameter of the disk medium in a same direction along an axis of rotation of the spindle, and a load/unload ramp positioned, based on the offset, to align in correspondence with the outer diameters of the disk media. Thus, the curvature of irregular disk media, such as that associated with thinner and thinner disks, is mitigated by grouping similarly-characterized irregular disks together on a given spindle and compensating the ramp accordingly.
    Type: Grant
    Filed: December 18, 2023
    Date of Patent: August 12, 2025
    Assignee: Western Digital Technologies, Inc.
    Inventors: Robert McNab, Daniel Nguyen, John Bianchini
  • HARD DISK DRIVE DISK MEDIA CURVATURE MITIGATION
    Publication number: 20250201273
    Abstract: A hard disk drive includes multiple disk media mounted on a spindle, where the outer diameter of each disk medium is offset from the inner diameter of the disk medium in a same direction along an axis of rotation of the spindle, and a load/unload ramp positioned, based on the offset, to align in correspondence with the outer diameters of the disk media. Thus, the curvature of irregular disk media, such as that associated with thinner and thinner disks, is mitigated by grouping similarly-characterized irregular disks together on a given spindle and compensating the ramp accordingly.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 19, 2025
    Inventors: Robert McNab, Daniel Nguyen, John Bianchini