Patents by Inventor Utis Cumhnoo

Utis Cumhnoo 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).

  • Methods and apparatuses for localized annealing of sliders configured for heat assisted magnetic recording
    Patent number: 10643641
    Abstract: A slider for heat assisted magnetic recording (HAMR) is provided. The slider includes a writer for writing data to a HAMR medium, a reader for reading data stored on the HAMR medium, a near field transducer (NFT), a first waveguide optically coupled to the NFT, a slider laser configured to generate and transmit a first light energy to the first waveguide such that the NFT causes a portion of the HAMR medium to heat up, to assist the writer for writing data to the HAMR medium, and a second waveguide optically coupled to the NFT, for transmitting a light energy from an external laser to the NFT to optically anneal the NFT during a fabrication process of the slider.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 5, 2020
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Bin Ouyang, Takuya Matsumoto, Utis Cumhnoo, Mousumi Mani Biswas, Ozgun Suzer, Marc A Finot