Patents by Inventor PengBoon Khoo

PengBoon Khoo 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).

  • Adhesive compositions that contain adhesive polymer and carbon nanotubes, and related products and methods
    Patent number: 11352528
    Abstract: Described are adhesive compositions that contain adhesive polymer and carbon nanotubes; devices (e.g., electronic devices and electronic device enclosures) and compositions that include one of these adhesive compositions; and uses of such adhesive compositions as part of an electronic device.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 7, 2022
    Assignee: Seagate Technology LLC
    Inventors: PengBoon Khoo, Li Hong Zhang, Swee Chuan Gan, Xiong Liu
  • Microwave-assisted magnetic recording apparatus and method
    Patent number: 10755736
    Abstract: A magnetic recording medium includes a recording surface comprising a first recording layer having a first ferromagnetic resonant frequency and a second recording layer having a second ferromagnetic resonant frequency. The first recording layer is configured for storing user data and the second recording layer configured for storing servo data. A recording head arrangement is configured for microwave-assisted magnetic recording (MAMR) and writing user data to the first recording layer. The recording head arrangement comprises a write pole configured to generate a write magnetic field, and a write-assist arrangement proximate the write pole. The write-assist arrangement is configured to generate a radiofrequency assist magnetic field at a frequency that corresponds to the first ferromagnetic resonant frequency. A reader of the recording head arrangement is configured to read combined signals from the first and second recording layers.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: August 25, 2020
    Assignee: Seagate Technology LLC
    Inventors: Xiong Liu, Lihong Zhang, PengBoon Khoo
  • MICROWAVE-ASSISTED MAGNETIC RECORDING APPARATUS AND METHOD
    Publication number: 20190392862
    Abstract: A magnetic recording medium includes a recording surface comprising a first recording layer having a first ferromagnetic resonant frequency and a second recording layer having a second ferromagnetic resonant frequency. The first recording layer is configured for storing user data and the second recording layer configured for storing servo data. A recording head arrangement is configured for microwave-assisted magnetic recording (MAMR) and writing user data to the first recording layer. The recording head arrangement comprises a write pole configured to generate a write magnetic field, and a write-assist arrangement proximate the write pole. The write-assist arrangement is configured to generate a radiofrequency assist magnetic field at a frequency that corresponds to the first ferromagnetic resonant frequency. A reader of the recording head arrangement is configured to read combined signals from the first and second recording layers.
    Type: Application
    Filed: July 29, 2019
    Publication date: December 26, 2019
    Inventors: Xiong Liu, Lihong Zhang, PengBoon Khoo
  • Microwave-assisted magnetic recording apparatus and method
    Patent number: 10482912
    Abstract: A magnetic recording medium includes a recording surface comprising a first recording layer having a first ferromagnetic resonant frequency and a second recording layer having a second ferromagnetic resonant frequency. The first recording layer is configured for storing user data and the second recording layer configured for storing servo data. A recording head arrangement is configured for microwave-assisted magnetic recording (MAMR) and writing user data to the first recording layer. The recording head arrangement comprises a write pole configured to generate a write magnetic field, and a write-assist arrangement proximate the write pole. The write-assist arrangement is configured to generate a radiofrequency assist magnetic field at a frequency that corresponds to the first ferromagnetic resonant frequency. A reader of the recording head arrangement is configured to read combined signals from the first and second recording layers.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 19, 2019
    Assignee: Seagate Technology LLC
    Inventors: Xiong Liu, Lihong Zhang, PengBoon Khoo
  • Microwave-assisted magnetic recording apparatus and method
    Patent number: 10249332
    Abstract: A magnetic recording medium includes a recording surface comprising a first recording layer having a first ferromagnetic resonant frequency and a second recording layer having a second ferromagnetic resonant frequency. The first recording layer is configured for storing user data and the second recording layer configured for storing servo data. A recording head arrangement is configured for microwave-assisted magnetic recording (MAMR) and writing user data to the first recording layer. The recording head arrangement comprises a write pole configured to generate a write magnetic field, and a write-assist arrangement proximate the write pole. The write-assist arrangement is configured to generate a radiofrequency assist magnetic field at a frequency that corresponds to the first ferromagnetic resonant frequency. A reader of the recording head arrangement is configured to read combined signals from the first and second recording layers.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: April 2, 2019
    Assignee: Seagate Technology LLC
    Inventors: Xiong Liu, Lihong Zhang, PengBoon Khoo