Patents by Inventor Takaaki Fujiyoshi

Takaaki Fujiyoshi 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).

  • System and process for reading hologram code, hologram and card containing hologram
    Patent number: 5565667
    Abstract: A hologram code reading system wherein the reconstruction light of a light source illuminates the recorded area of a hologram that contains codified data recorded as image data, and a code reading sensor is arranged at the reconstruction position of the hologram reconstruction image played back by the reconstruction light from the light source, and a control means is provided for obtaining codified data from the hologram reconstruction image readout by the code reading sensor.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: October 15, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Norio Takahashi, Takaaki Fujiyoshi
  • System and process for reading hologram code, hologram and card containing hologram
    Patent number: 5444225
    Abstract: A hologram code reading system wherein the reconstruction light of a light source illuminates the recorded area of a hologram that contains codified data recorded as image data, and a code reading sensor is arranged at the reconstruction position of the hologram reconstruction image played back by the reconstruction light from the light source, and a control means is provided for obtaining codified data from the hologram reconstruction image readout by the code reading sensor.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: August 22, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Norio Takahashi, Takaaki Fujiyoshi