Patents by Inventor Kwok H. Yuen

Kwok H. Yuen 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).

  • Sputter textured magnetic recording medium
    Patent number: 5985410
    Abstract: A magnetic recording medium exhibiting improved glide and CSS characteristics is produced by depositing a metallic layer on a non-magnetic substrate, as by sputtering, so that the deposited metallic layer has a textured surface. In one embodiment, a Ti-base alloy layer having a textured surface comprising a plurality of relatively uniform protrusions is sputter-deposited directly onto a non-magnetic substrate, such as Ni--P coated aluminum-magnesium alloy substrate, or an electrically conductive graphite substrate, and a magnetic layer deposited on the sputtered metallic layer with or without a Cr underlayer.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: November 16, 1999
    Assignee: Seagate Technology, Inc.
    Inventors: Ga-Lane Chen, Kwok H. Yuen
  • Sputter textured magnetic recording medium
    Patent number: 5718811
    Abstract: A magnetic recording medium exhibiting improved glide and CSS characteristics is produced by depositing a metallic layer on a non-magnetic substrate, as by sputtering, so that the deposited metallic layer has a textured surface. In one embodiment, a Ti-base alloy layer having a textured surface comprising a plurality of relatively uniform protrusions is sputter-deposited directly onto a non-magnetic substrate, such as Ni-P coated aluminum-magnesium alloy substrate, or an electrically conductive graphite substrate, and a magnetic layer deposited on the sputtered metallic layer with or without a Cr underlayer.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: February 17, 1998
    Assignee: Seagate Technology, Inc.
    Inventors: Ga-Lane Chen, Kwok H. Yuen