Patents by Inventor Kim Ungtae

Kim Ungtae 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).

  • Apparatus and system for centering media disks on the hub of a spindle motor in a hard disk drive
    Patent number: 7283325
    Abstract: A device for centering and securing data storage disks to the hub of a spindle motor in a hard disk drive has a chamfer and a countersink on the top of the spindle motor shaft center. During the hard disk drive assembly process, a disk centering tool engages and uses these features to locate and center the disks that are installed on the spindle motor. The features are closely toleranced to provide a very precise centering feature for mounting and aligning the media disks with respect to the hub and the spindle motor. The present design reduces the complexity of the tooling and fixtures required to complete the assembly. As a result, the overall part cost is reduced and the manufacturing yield is improved.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: October 16, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands BV
    Inventors: Ta-Chang Fu, Robert A. Lenicheck, Satter Malek, Kim Ungtae, Stanley Yen Wong
  • Method of centering media disks on the hub of a spindle motor in a hard disk drive
    Patent number: 7155807
    Abstract: A method for centering and securing data storage disks to the hub of a spindle motor in a hard disk drive has a chamfer and a countersink on the top of the spindle motor shaft center. During the hard disk drive assembly process, a disk centering tool engages and uses these features to locate and center the disks that are installed on the spindle motor. The features are closely toleranced to provide a very precise centering feature for mounting and aligning the media disks with respect to the hub and the spindle motor. The present design reduces the complexity of the tooling and fixtures required to complete the assembly. As a result, the overall part cost is reduced and the manufacturing yield is improved.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: January 2, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands BV
    Inventors: Ta-Chang Fu, Robert A. Lenicheck, Sattar Malek, Kim Ungtae, Stanley Yen Wong
  • Method of centering media disks on the hub of a spindle motor in a hard disk drive
    Publication number: 20050044694
    Abstract: A method for centering and securing data storage disks to the hub of a spindle motor in a hard disk drive has a chamfer and a countersink on the top of the spindle motor shaft center. During the hard disk drive assembly process, a disk centering tool engages and uses these features to locate and center the disks that are installed on the spindle motor. The features are closely toleranced to provide a very precise centering feature for mounting and aligning the media disks with respect to the hub and the spindle motor. The present design reduces the complexity of the tooling and fixtures required to complete the assembly. As a result, the overall part cost is reduced and the manufacturing yield is improved.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 3, 2005
    Inventors: Ta-Chang Fu, Robert Lenicheck, Sattar Malek, Kim Ungtae, Stanley Wong
  • Apparatus and system for centering media disks on the hub of a spindle motor in a hard disk drive
    Publication number: 20050047004
    Abstract: A device for centering and securing data storage disks to the hub of a spindle motor in a hard disk drive has a chamfer and a countersink on the top of the spindle motor shaft center. During the hard disk drive assembly process, a disk centering tool engages and uses these features to locate and center the disks that are installed on the spindle motor. The features are closely toleranced to provide a very precise centering feature for mounting and aligning the media disks with respect to the hub and the spindle motor. The present design reduces the complexity of the tooling and fixtures required to complete the assembly. As a result, the overall part cost is reduced and the manufacturing yield is improved.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 3, 2005
    Inventors: Ta-Chang Fu, Robert Lenicheck, Sattar Malek, Kim Ungtae, Stanley Wong