TREA

Yi Liu

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  • Edina, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Writer pole formation
    • Patent number 9,805,756
    • Issue date Oct 31, 2017
    • Seagate Technology LLC
    • Yi Liu
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Transmission balancing for phase shift mask with a trim mask
    • Patent number 9,482,965
    • Issue date Nov 1, 2016
    • Seagate Technology LLC
    • Dan Yu
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Writer pole formation
    • Patent number 9,411,234
    • Issue date Aug 9, 2016
    • Seagate Technology LLC
    • Yi Liu
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Transmission balancing for phase shift mask with a trim mask
    • Patent number 9,341,939
    • Issue date May 17, 2016
    • Seagate Technology LLC
    • Dan Yu
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents