Patents by Inventor Mohammad S. Mirzamaani

Mohammad S. Mirzamaani 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 thin film media with a bi-layer structure of CrTi/Nip
    Patent number: 6858331
    Abstract: A thin film magnetic media structure with a bi-layer structure of amorphous chromium titanium (CrTi) followed by an amorphous layer of nickel phosphorus (NiP) is disclosed. After the NiP has been deposited it is exposed to oxygen to form an oxidized surface. Preferably the underlayer is deposited directly onto the oxidized NiP surface. The bi-layer structure of CrTi/NiP promotes excellent in-plane crystallographic orientation in the cobalt alloy magnetic layer(s) and allows an ultra-thin chromium underlayer to be used which provides better control over grain size and distribution. When the CrTi/NiP bi-layer structure is combined with a circumferentially textured substrate, preferably glass, a high Mrt orientation ratio (OR) results.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: February 22, 2005
    Assignee: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: Xiaoping Bian, Mary Frances Doerner, Mohammad S. Mirzamaani, Adam Polcyn, Qi-Fan Xiao