Patents by Inventor Mojtaba Sedighi

Mojtaba Sedighi 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).

  • Carbon seedlayer on non-metallic substrates for magnetic recording media
    Patent number: 5800863
    Abstract: Magnetic recording media comprise non-metallic substrates which are coated with a seedlayer of carbon or silicon. The seedlayer improves the magnetic recording characteristics of a subsequent magnetic layer. The effect of the seedlayer is further enhanced by use of an underlayer, preferably a chromium or chrome alloy ground layer, between the seedlayer and magnetic layer.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: September 1, 1998
    Assignee: Akashic Memories Corporation
    Inventors: Yuanda Cheng, Richard A. Gardner, Mojtaba Sedighi
  • Carbon seedlayer on non-metallic substrates for magnetic recording media
    Patent number: 5599632
    Abstract: A magnetic recording medium comprising a non-metallic substrate having a seedlayer thereon of carbon or silicon. The seedlayer improves the magnetic recording characteristics of a subsequent magnetic layer by smoothing out irregularities on the non-metallic substrate surface such that a surface of the seedlayer adjacent the magnetic layer is smoother than the surface of the substrate.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: February 4, 1997
    Assignee: Akashic Memories Corporation
    Inventors: Yuanda Cheng, Richard A. Gardner, Mojtaba Sedighi