Patents by Inventor Takeshi Kurumizawa

Takeshi Kurumizawa 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).

  • Part-delivery apparatus and method for the same
    Patent number: 8425175
    Abstract: According to an aspect of an embodiment, there is provided a part-delivery apparatus which transports a part to a designated part-delivery position by drawing the part onto a head by suction pressure at a designated part-suction position, and which releases the part at the part-delivery position by stopping application of the suction pressure. The apparatus includes: a compliance mechanism for allowing movement of the head in a horizontal plane; an upper-side positioning unit for positioning the head in the part-suction position by responding to an upward movement of the head; and a lower-side positioning unit for positioning the head in the part-delivery position by responding to the downward movement of the head.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: April 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Makoto Kobayashi, Tsutomu Miyamoto, Kazuyoshi Akiike, Takeshi Kurumizawa
  • Head stack assembly incorporating device, magnetic disk device manufacturing device, and method of manufacturing magnetic disk device
    Patent number: 8191233
    Abstract: According to one embodiment, a head stack assembly incorporating device connects a head stack assembly to the base of a magnetic disk device by screwing a connector on the bottom surface of the rotational shaft of the head stack assembly and a connector on the base of the magnetic device together. The head stack assembly incorporating device includes a chuck and a driving-force transmitter. The chuck pinches the rotational shaft of the head stack assembly from the upper surface of the head stack assembly to be fixed to the rotational shaft. The chuck is rotatable around the central axis of the rotational shaft. The driving-force transmitter transmits a rotational force to the chuck.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: June 5, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryousuke Naide, Takeshi Kurumizawa
  • HEAD STACK ASSEMBLY INCORPORATING DEVICE, MAGNETIC DISK DEVICE MANUFACTURING DEVICE, AND METHOD OF MANUFACTURING MAGNETIC DISK DEVICE
    Publication number: 20100238593
    Abstract: According to one embodiment, a head stack assembly incorporating device connects a head stack assembly to the base of a magnetic disk device by screwing a connector on the bottom surface of the rotational shaft of the head stack assembly and a connector on the base of the magnetic device together. The head stack assembly incorporating device includes a chuck and a driving-force transmitter. The chuck pinches the rotational shaft of the head stack assembly from the upper surface of the head stack assembly to be fixed to the rotational shaft. The chuck is rotatable around the central axis of the rotational shaft. The driving-force transmitter transmits a rotational force to the chuck.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 23, 2010
    Applicant: TOSHIBA STORAGE DEVICE CORPORATION
    Inventors: Ryousuke NAIDE, Takeshi KURUMIZAWA
  • Part-delivery apparatus and method for the same
    Publication number: 20090041562
    Abstract: According to an aspect of an embodiment, there is provided a part-delivery apparatus which transports a part to a designated part-delivery position by drawing the part onto a head by suction pressure at a designated part-suction position, and which releases the part at the part-delivery position by stopping application of the suction pressure. The apparatus includes: a compliance mechanism for allowing movement of the head in a horizontal plane; an upper-side positioning unit for positioning the head in the part-suction position by responding to an upward movement of the head; and a lower-side positioning unit for positioning the head in the part-delivery position by responding to the downward movement of the head.
    Type: Application
    Filed: May 14, 2008
    Publication date: February 12, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Makoto Kobayashi, Tsutomu Miyamoto, Kazuyoshi Akiike, Takeshi Kurumizawa