Patents by Inventor George J. Gau

George J. Gau 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).

  • Pole design for thin film magnetic heads
    Patent number: 5126232
    Abstract: A thin film magnetic head including top and bottom pole tips having reversed trapezoidal cross sections. Mirror image symmetry across a gap region may be achieved. The top and bottom pole tips may be formed using a photolithographic process using positive photoresist including post bake and flood exposure steps.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: June 30, 1992
    Assignee: Seagate Technology, Inc.
    Inventor: George J. Gau
  • Top pole profile for pole tip trimming
    Patent number: 5116719
    Abstract: A thin film magnetic read/write head is manufactured using an improved pole tip alignment process. The upper pole tip is formed with positively sloped profile sides for improved alignment between the profile sides of the top pole and the profile sides of the protective layer used during an ion milling alignment process.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: May 26, 1992
    Assignee: Seagate Technology, Inc.
    Inventor: George J. Gau
  • Pole design for thin film magnetic heads
    Patent number: 4970615
    Abstract: A thin film magnetic head including top and bottom pole tips having reversed trapezoidal cross sections. Mirror image symmetry across a gap region may be achieved. The top and bottom pole tips may be formed using a photolithographic process using positive photoresist including post bake and flood exposure steps.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: November 13, 1990
    Assignee: Magnetic Peripherals Inc.
    Inventor: George J. Gau