Patents by Inventor Hidehiro Tanaka

Hidehiro Tanaka 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).

  • Electrical conductive roller
    Publication number: 20070219079
    Abstract: There is provided an electrical conductive roller having a roller body made from a resin with a light weight and a high accuracy, in which is the roller body is constituted with plural hollow members connected to each other in the longitudinal direction and is provided with a bonding means for keeping the connection of the hollow members even under a release of a compression force in the longitudinal direction.
    Type: Application
    Filed: October 23, 2006
    Publication date: September 20, 2007
    Inventors: Hidehiro Tanaka, Hideo Tanaka
  • Electromagnetic display
    Patent number: 4616221
    Abstract: An electromagnetic display or indicator element comprises a disc having a permanent magnet perpendicular to the disc's rotary axis. The disc is controlled by a single high remanence pole piece which has its forward end transversely (relative to the viewing direction) located relative to the disc to exert the main control on the magnet therein and its rearward end located rearwardly of the center of the disc.
    Type: Grant
    Filed: January 19, 1984
    Date of Patent: October 7, 1986
    Assignees: NEI Canada Limited, MIWA Electric, Co. Ltd.
    Inventors: Hidehiro Tanaka, Takashi Ishii