Patents by Inventor Yoshiaki Higashisaka

Yoshiaki Higashisaka 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).

  • Tape reel
    Patent number: 7891601
    Abstract: The tape reel of the present invention includes: a cylindrical hub for winding recording tape; and a pair of upper and lower flanges respectively projecting circumferentially from upper and lower portions of the hub. The tape reel further comprises: a lower piece including the lower flange and a first cylinder wall formed integrally with the lower flange; and an upper piece including the upper flange and a second cylinder wall formed integrally with the upper flange. The hub is formed in a double cylinder form by a fit engagement between the first cylinder wall of the lower piece and the second cylinder wall of the upper piece.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: February 22, 2011
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshiaki Higashisaka, Hirofumi Sakagami
  • TAPE REEL
    Publication number: 20090250547
    Abstract: The tape reel of the present invention includes: a cylindrical hub for winding recording tape; and a pair of upper and lower flanges respectively projecting circumferentially from upper and lower portions of the hub. The tape reel further comprises: a lower piece including the lower flange and a first cylinder wall formed integrally with the lower flange; and an upper piece including the upper flange and a second cylinder wall formed integrally with the upper flange. The hub is formed in a double cylinder form by a fit engagement between the first cylinder wall of the lower piece and the second cylinder wall of the upper piece.
    Type: Application
    Filed: March 4, 2009
    Publication date: October 8, 2009
    Inventors: Yoshiaki HIGASHISAKA, Hirofumi SAKAGAMI