Patents by Inventor Hirofumi Ikeo

Hirofumi Ikeo 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).

  • Holographic storage material
    Patent number: 3997350
    Abstract: Holographic storage materials are disclosed including lithium niobate in the form of a single crystal added with either from 0.001 to 3.0 molar percent of iridium or from 0.01 to 1.0 molar percent of uranium for the three dimensional holography.
    Type: Grant
    Filed: March 27, 1974
    Date of Patent: December 14, 1976
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirofumi Ikeo, Shoichi Noda, Takao Sawada, Eichi Okamoto, Katsutoshi Muto