Patents by Inventor Yuuki YAMASAKI

Yuuki YAMASAKI 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).

  • Hologram recording and reproducing apparatus
    Patent number: 9484057
    Abstract: A disk conveyance unit 3 conveys the disk medium 2 to a position where recording and reproducing are performed by the pickup 1 with the spindle motor 4 held. The disk conveyance unit 3 includes first movement mechanisms 22 and 24 for moving a first conveyance frame 30 with respect to fixed frames 10 and 20 and second movement mechanisms 34 and 36 for moving a second conveyance frame 40 holding a spindle motor 4 with respect to the first conveyance frame 30. The first and second movement mechanisms move to substantially the same direction and operate independently from each other. This allows the disk of the hologram recording and reproducing apparatus to be moved at a high speed and positioned at a high accuracy.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: November 1, 2016
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Kouji Fukuda, Takashi Nagai, Akihiro Ashida, Yuuki Yamasaki, Shinsuke Takatsuka
  • HOLOGRAM RECORDING AND REPRODUCING APPARATUS
    Publication number: 20160254021
    Abstract: A disk conveyance unit 3 conveys the disk medium 2 to a position where recording and reproducing are performed by the pickup 1 with the spindle motor 4 held. The disk conveyance unit 3 includes first movement mechanisms 22 and 24 for moving a first conveyance frame 30 with respect to fixed frames 10 and 20 and second movement mechanisms 34 and 36 for moving a second conveyance frame 40 holding a spindle motor 4 with respect to the first conveyance frame 30. The first and second movement mechanisms move to substantially the same direction and operate independently from each other. This allows the disk of the hologram recording and reproducing apparatus to be moved at a high speed and positioned at a high accuracy.
    Type: Application
    Filed: February 4, 2016
    Publication date: September 1, 2016
    Applicant: HITACHI-LG DATA STORAGE, INC.
    Inventors: Kouji FUKUDA, Takashi NAGAI, Akihiro ASHIDA, Yuuki YAMASAKI, Shinsuke TAKATSUKA