Patents by Inventor Bryn John Howells

Bryn John Howells 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).

  • HEAT-ASSISTED MAGNETIC RECORDING HEAD WITH AN INTEGRATED PHOTODIODE
    Publication number: 20240112696
    Abstract: A heat-assisted magnetic recording head includes a laser, a near-field transducer, a primary waveguide, a secondary waveguide, and a photodiode. The laser is configured to emit electromagnetic radiation. The near-field transducer is configured to focus and emit an optical near-field. The primary waveguide configured to receive the electromagnetic radiation and propagate the electromagnetic radiation toward and proximal to the near-field transducer. The secondary waveguide configured to receive a portion of the electromagnetic radiation from the primary waveguide. The photodiode configured to receive the portion of the electromagnetic radiation from the secondary waveguide and emit a signal that represents a magnitude of the electromagnetic radiation that the laser emits.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Inventors: Mark Anthony Gubbins, Christopher Neil Harvey, Aidan Dominic Goggin, Fadi El Hallak, Reshma Anamari Mohandas, Bryn John Howells, Scott Eugene Olson
  • Heat-assisted magnetic recording head with an integrated photodiode
    Patent number: 11908499
    Abstract: A heat-assisted magnetic recording head includes a laser, a near-field transducer, a primary waveguide, a secondary waveguide, and a photodiode. The laser is configured to emit electromagnetic radiation. The near-field transducer is configured to focus and emit an optical near-field. The primary waveguide configured to receive the electromagnetic radiation and propagate the electromagnetic radiation toward and proximal to the near-field transducer. The secondary waveguide configured to receive a portion of the electromagnetic radiation from the primary waveguide. The photodiode configured to receive the portion of the electromagnetic radiation from the secondary waveguide and emit a signal that represents a magnitude of the electromagnetic radiation that the laser emits.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: February 20, 2024
    Inventors: Mark Gubbins, Christopher Neil Harvey, Aidan Goggin, Fadi El Hallak, Reshma Anamari Mohandas, Bryn John Howells, Scott Eugene Olson
  • LASER HEAT SINKING FOR INTEGRATING LASER DIODE INTO RECORDING HEADS AT WAFER LEVEL
    Publication number: 20230318257
    Abstract: A method comprising the steps of forming a recording head comprising a waveguide, a heat sink and a bleed resistor on a first substrate, is described. The bleed resistor is coupled to the heat sink and the substrate. The top surface of the heat sink is planarized to form a planarized heat sink. A laser diode formed on a second substrate is transfer printed onto the planarized heat sink to form an integrated laser diode.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 5, 2023
    Applicant: Seagate Technology LLC
    Inventors: Fadi El Hallak, Bryn John Howells, Michael Gerald Boyle, Frank Anthony McGinnity, Martin Liam McGarry