Patents by Inventor Wen Rong Guo

Wen Rong Guo 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).

  • Patent number: 11308981
    Abstract: A lapping method of a MAMR head slider includes a first lapping process: controlling the lapping plate to spin at a first speed, and controlling the MAMR head slider to move at a first moving speed, and applying a first force to the MAMR head slider; and a second lapping process: controlling the lapping plate to spin at a second speed that is lower than the first speed, and controlling the MAMR head slider to move at a second moving speed that is lower than the first moving speed, and applying a second force that is lower than the first force to the MAMR head slider; and the second lapping process includes a final lapping process section, and the second force in the final lapping process being zero. In such a way, lapping marks on the ABS are reduced to improve the roughness and the reliability.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: April 19, 2022
    Assignee: SAE MAGNETICS (H.K.) LTD.
    Inventors: Shi Xiong Chen, Bin Qi, Wen Rong Guo, Peng Liu
  • Publication number: 20220005496
    Abstract: A lapping method of a MAMR head slider includes a first lapping process: controlling the lapping plate to spin at a first speed, and controlling the MAMR head slider to move at a first moving speed, and applying a first force to the MAMR head slider; and a second lapping process: controlling the lapping plate to spin at a second speed that is lower than the first speed, and controlling the MAMR head slider to move at a second moving speed that is lower than the first moving speed, and applying a second force that is lower than the first force to the MAMR head slider; and the second lapping process includes a final lapping process section, and the second force in the final lapping process being zero. In such a way, lapping marks on the ABS are reduced to improve the roughness and the reliability.
    Type: Application
    Filed: June 8, 2021
    Publication date: January 6, 2022
    Inventors: Shi Xiong CHEN, Bin QI, Wen Rong GUO, Peng LIU
  • Patent number: 10811042
    Abstract: A thermally assisted magnetic recording head and a thermally assisted magnetic recording disk drive are disclosed. The thermally assisted magnetic recording head includes a slider body, a laser substrate, a laser and a magnetic head, wherein the laser substrate is provided on the slider body, the laser is provided on the laser substrate, and the magnetic head is provided at a front end of the slider body. The magnetic head includes an optical waveguide facing the laser. The angle between a light incident surface of the optical waveguide and an incident direction of a laser light incident on the optical waveguide is less than 90 degrees. The thermally assisted magnetic recording disk drive includes a plurality of magnetic disks and a magnetic head suspending frame. A front end of the magnetic head suspending frame is provided with the thermally assisted magnetic recording heads mentioned above.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: October 20, 2020
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Ryuji Fujii, Jian Hui Huang, Natsuo Nishijima, Lin Huang, Shi Xiong Chen, Bin Qi, Wen Rong Guo
  • Publication number: 20200143827
    Abstract: A thermally assisted magnetic recording head and a thermally assisted magnetic recording disk drive are disclosed. The thermally assisted magnetic recording head includes a slider body, a laser substrate, a laser and a magnetic head, wherein the laser substrate is provided on the slider body, the laser is provided on the laser substrate, and the magnetic head is provided at a front end of the slider body. The magnetic head includes an optical waveguide facing the laser. The angle between a light incident surface of the optical waveguide and an incident direction of a laser light incident on the optical waveguide is less than 90 degrees. The thermally assisted magnetic recording disk drive includes a plurality of magnetic disks and a magnetic head suspending frame. A front end of the magnetic head suspending frame is provided with the thermally assisted magnetic recording heads mentioned above.
    Type: Application
    Filed: December 24, 2018
    Publication date: May 7, 2020
    Inventors: Ryuji Fujii, Jian Hui Huang, Natsuo Nishijima, Lin Huang, Shi Xiong Chen, Bin Qi, Wen Rong Guo