Patents by Inventor Alan Lee Sidman

Alan Lee Sidman 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).

  • Magnetic devices with enhanced poles
    Patent number: 5830587
    Abstract: A process resulting in enhanced pole performance, relative to permalloy poles, in narrow track magnetic devices. A preferred process includes increasing the anisotropy field of the pole material while maintaining an acceptable coercivity level and near zero magnetostriction. One embodiment utilizes a NiCoFe alloy containing 22% cobalt by weight, heat treated in an easy axis magnetic field in a non-oxidizing atmosphere. This process achieves favorable domain structures at narrow pole tip widths.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: November 3, 1998
    Assignee: MKE-Quantum Components Colorado, LLC
    Inventors: Harold B. Shukovsky, Michelle Martin, Michael Mallary, Alan Lee Sidman