Only Three Adjacent Magnetic Layers Form Series Patents (Class 428/819.2)
  • Media etch process
    Patent number: 9361926
    Abstract: A method for etching a media is disclosed. A first magnetic layer comprising grains is deposited with a segregant such that a portion of the first segregant covers a top surface of the grains of the first magnetic layer and a second portion of the first segregant separates the grains of the first magnetic layer. The first segregant is etched to remove the portion of the first segregant that covers the top surface of the grains.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: June 7, 2016
    Assignee: HGST Netherlands B.V.
    Inventors: Qing Dai, Oleksandr Mosendz, Simone Pisana, James Reiner, Hans Richter, Franck Rose, Dieter Weller
  • Magneto-optical recording medium, method of manufacturing magneto-optical recording medium, method of recording on magneto-optical recording medium, and method of reproduction from magneto-optical recording medium
    Patent number: 7235313
    Abstract: A magneto-optical medium has a recording layer having a plurality of columns extending in a lamination direction, and a reproduction layer which is placed below the recording layer and which functions as a nucleus for the columns.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: June 26, 2007
    Assignee: Matsushita Electic Industrial Co., Ltd.
    Inventors: Motoyoshi Murakami, Masahiro Birukawa