Magnetic Field Transducer Assembly Patents (Class 369/13.17)
  • Publication number: 20020021627
    Abstract: The present invention relates to a recording head for recording information based on an optical magnetic recording system, and has an object of carrying out a high-density recording by reducing the beam diameter of an optical beam irradiated to a recording medium. When an optical beam having a larger diameter than that of the recording head is irradiated, this optical beam is condensed in a light guiding layer. The optical beam is further condensed with a sharp-headed chip. The condensed optical beam is emitted from an emission aperture smaller than the wavelength of the light at the front end of the chip, and irradiated to the recording medium.
    Type: Application
    Filed: September 13, 2001
    Publication date: February 21, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Shinya Hasegawa, Wataru Odajima, Fumihiro Tawa, Nobuhide Aoyama
  • Publication number: 20020006082
    Abstract: A magneto-optical recording and reproduction device includes an optical pickup for irradiating a magneto-optical disk with a laser beam for performing at least one of information recording to a magneto-optical disk, information reproduction from the magneto-optical disk, and information erasure from the magneto-optical disk; a magnetic head for providing a magnetic field to a position of the magneto-optical disk irradiated with the laser beam for performing at least one of the information recording and the information erasure, the magnetic head being located opposite to the optical pickup with respect to the magneto-optical disk where the magneto-optical disk is mounted on the magneto-optical recording and reproduction device; a housing for accommodating the optical pickup; a guide shaft for moving the housing; a suspension for supporting the magnetic head; and an arm for connecting the suspension and the housing.
    Type: Application
    Filed: June 15, 2001
    Publication date: January 17, 2002
    Inventors: Tomoyuki Miyake, Seiichi Nagatome, Toshiyuki Tanaka
  • Publication number: 20020001259
    Abstract: A slider for an optical head for signal recording and/or reproduction on or from a recording medium which, even if reduced in size, assures optimum signal recording and/or reproduction on or from a recording medium, and which may be produced readily. The slider for the optical head includes a slider member for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium, an optical lens bonded to the slider member and a magnetic field generating unit provided on a surface of the slider member carrying the optical lens facing the recording medium. The slider member is formed with a terminal groove opened in a its surface facing the recording medium and in its lateral surface, with an electrically conductive material being charged in the terminal groove. The electrically conductive material charged forms a terminal electrically connected to the magnetic field generating unit.
    Type: Application
    Filed: February 14, 2001
    Publication date: January 3, 2002
    Inventors: Akio Mishima, Toru Katakura