Patents by Inventor Jain-Gang Zhu

Jain-Gang Zhu 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).

  • System for biasing a synthetic free layer in a magnetoresistance sensor
    Patent number: 6201673
    Abstract: A system and method for providing a magnetoresistive head is disclosed. The method and system include providing a spin valve including a synthetic free layer. The synthetic free layer includes a ferromagnetic layer. The method and system also include providing an antiferromagnetic biasing layer exchange coupled to a first portion of the ferromagnetic layer. The antiferromagnetic biasing layer magnetically biases the synthetic free layer to ensure the single domain structure and reduce noise.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: March 13, 2001
    Assignee: Read-Rite Corporation
    Inventors: Robert E. Rottmayer, Jain-Gang Zhu, Kenneth Everett Knapp, Yiming Huai