Patents by Inventor Keith Robert Mountfield

Keith Robert Mountfield 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).

  • Publication number: 20030228542
    Abstract: A magnetic material structure is provided according to the present invention that is capable of being lithographically patterned for various uses, such as, but not limited to, magnetic read/write devices. The magnetic material structure includes a layer of magnetic material provided on a wafer or other substrate, a layer of non-magnetic material provided on top of the layer of magnetic material, and a layer of soft magnetic material provided on top of the layer of non-magnetic material. The magnetic material which is to be patterned will have a magnetic field component normal to a plane of the layer of magnetic material. To minimize the effect this normal magnetic field component will have on electrons as they impinge the structure surface during e-beam lithography, the soft magnetic material has a high-plane permeability sufficient to divert the normal magnetic field component of the magnetic material into a plane of the layer of soft magnetic material.
    Type: Application
    Filed: October 25, 2002
    Publication date: December 11, 2003
    Applicant: Seagate Technology LLC
    Inventors: Michael Kevin Minor, Andrew Robert Eckert, Xiaomin Yang, Keith Robert Mountfield