Patents by Inventor Hidehiko Ota

Hidehiko Ota 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: 6918127
    Abstract: A disk loading apparatus may include a first retaining device that is arranged in a slot for a disk to be inserted and thereby retains the outer edge of the disk so as to permit it to pass through the slot. A transferring device transfers the disk retained by the first retaining device to a predetermined position. A second retaining device is arranged in the interior from the slot and thereby retains the outer edge of the disk retained by the first retaining device and transferred by the transferring device. A rotating device rotates the disk at the predetermined position. Also, each of the first and second retaining devices has a contact section for contacting with the outer edge, upper surface, and lower surface of the disk in a slidable manner.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: July 12, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinichi Maeda, Hidehiko Ota, Hirofumi Furukawa, Mariko Fukuyama, by, Michio Fukuyama
  • Patent number: 6721263
    Abstract: A disk retaining mechanism that realizes a reduction of its thickness while maintaining a clamping force and a centering accuracy of the clamper, with a structure, in which: a guide (11) is disposed in a manner to closely confront a clamper retaining member (9); a clamper unit retaining portion of the clamper retaining member (9) has such a shape that a part of which an entire circumference is cut out; a clamper unit for depressing a disk (13) is provided with a disk holder (3) having an engagement projection (M); and an annular engagement groove (F) formed in a turntable (7) for loading the disk (13) is arranged below an upper end of a main shaft (8) that transfers rotation of a motor unit (10).
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: April 13, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hidehiko Ota, Yoshinori Takada, Hideaki Yamataka, Seigo Matsumoto, Tsuyoshi Hashida
  • Publication number: 20030099182
    Abstract: The present invention provides a disk loading apparatus the thickness of which can be reduced and which is applicable to disks of diverse size.
    Type: Application
    Filed: August 30, 2002
    Publication date: May 29, 2003
    Inventors: Shinichi Maeda, Hidehiko Ota, Hirofumi Furukawa, Mariko Fukuyama
  • Patent number: 6414927
    Abstract: A disk loading apparatus is provided which stops disks, even if the disks have different diameters, when disk center holes have been ejected to the substantially same positions out of an apparatus body during the ejection. The disks can be pulled out without soiling a recording surface of the disk. One disk-pass detecting switch detects a pass of the last end of each disk and discriminates sizes of the disks. In addition, a rotation time of a roller after the detection of the pass is controlled depending on disk diameters.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: July 2, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Hidehiko Ota