Patents by Inventor Motoki Kuroda

Motoki Kuroda 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).

  • Disk device with shape identifier
    Patent number: 8132195
    Abstract: A disk device is capable of quickly identifying an inserted optical disk. A reading portion obtains disk surface information from an optical disk that is passing, and stores the obtained disk surface information in a storing portion provided in a disk playing device. An identifying portion decides whether or not the disk playing device is able to play the optical disk, based on the surface information.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: March 6, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Ohmura, Hiroto Nishida, Motoki Kuroda
  • Disk Device
    Publication number: 20080320506
    Abstract: A disk device is capable of quickly identifying an inserted optical disk. A reading portion obtains disk surface information from an optical disk that is passing, and stores the obtained disk surface information in a storing portion provided in a disk playing device. An identifying portion decides whether or not the disk playing device is able to play the optical disk, based on the surface information.
    Type: Application
    Filed: September 12, 2005
    Publication date: December 25, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hiroshi Ohmura, Hiroto Nishida, Motoki Kuroda
  • Reduced height magnetic bias apparatus for a magnetooptical disk drive including a coil means having a central axis perpendicular to the rotating axis of a rotatable magnet
    Patent number: 5317548
    Abstract: A magnetic bias apparatus for generating a magnetic field for recording or erasing information in the magnetooptical disk drive apparatus is disclosed. The magnetic bias apparatus has a permanent magnet for generating a bias magnetic field which is rotatable about a rotating axis, a coil for rotating the permanent magnet and a circuit for driving the coil. The central axis of the coil is directed toward the rotating axis parallel to the plane of a magnetoptical disk and perpendicular to a plane of the permanent magnet defined by the two poles and extending through the central axis. The apparatus can be constructed in a reduced height while the permanent magnet can be rapidly rotated.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: May 31, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nobuhide Matsuda, Motoki Kuroda