Patents by Inventor David Rewerts

David Rewerts 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).

  • Method and apparatus for providing a temporary utility zone in a disk drive
    Patent number: 7233455
    Abstract: A disk surface has a keep-out region and a certified region. A transducer associated with the disk surface writes servo information in the keep-out region under control of a servo track writer. The transducer then writes data in a temporary utility zone in the keep-out region. Next, a self-servo write operation uses data in the temporary utility zone to write servo information in the certified region. Thereafter, data is transferred from the temporary utility zone to a final utility zone in the certified region.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: June 19, 2007
    Assignee: Maxtor Corporation
    Inventors: David Rewerts, Bruce Liikanen, John VanLaanen
  • Disk drive with temperature compensation of write current
    Patent number: 7212361
    Abstract: A disk drive provides temperature compensation for write current. The write current not only provides an acceptable bit error rate for data written to and read from the disk, but also prevents write induced instability in the head. Furthermore, the write current prevents excessive pole tip protrusion. As a result, the write current ensures that data is reliably stored and retrieved at a given temperature.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: May 1, 2007
    Assignee: Maxtor Corporation
    Inventors: Richard Pederson, Dale Landgren, Jerry Moline, David Rewerts