Patents by Inventor Jen-Wei C. Koo

Jen-Wei C. Koo 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 to make a stitched writer for a giant magneto-resistive head
    Patent number: 6608737
    Abstract: A giant magneto-resistive head is provided which includes a novel high data-rate stitched pole inductive magnetic write head. The write head incorporates a non-magnetic spacer layer and a magnetic pole yoke that is recessed from the magnetic pole tip. The spacer layer shortens the throat height of the write head, reduces its saturation write current, and improves its overwrite and side erasure performance.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: August 19, 2003
    Assignee: Headway Technologies, Inc.
    Inventors: Cherng-Chyi Han, Mao-Min Chen, Po-Kang Wang, Moris Musa Dovek, Gene Michael Sandler, Jen-Wei C. Koo
  • Novel method to make a stitched writer for a giant magneto-resistive head
    Publication number: 20030030943
    Abstract: A high data-rate stitched pole inductive magnetic write head incorporating a non-magnetic spacer layer and a magnetic pole yoke that is recessed from the magnetic pole tip. The spacer layer shortens throat height, reduces saturation write current, and improves overwrite and side erasure performance.
    Type: Application
    Filed: October 8, 2002
    Publication date: February 13, 2003
    Applicant: HEADWAY TECHNOLOGIES, INC.
    Inventors: Cherng-Chyi Han, Mao-Min Chen, Po-Kang Wang, Moris Musa Dovek, Gene Michael Sandler, Jen-Wei C. Koo