Patents by Inventor Shyouji Takeshige

Shyouji Takeshige 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).

  • Information recording medium and information recording apparatus
    Patent number: 5905547
    Abstract: The present invention provides an information recording medium having a liquid crystal phase, which can be repeatedly used. In an information recording medium where an information recording layer comprising a liquid crystal phase and a resin phase is laminated on an electrode, a mixture containing a smectic liquid crystal having good memory property and a liquid crystal having low memory property is used as the liquid crystal phase, the information recorded on the liquid crystal disappears as time elapses without being heated and the information recording medium can be repeatedly used for further information recording.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: May 18, 1999
    Assignee: DAI Nippon Printing Co., Ltd.
    Inventors: Osamu Shimizu, Hironori Kamiyama, Shyouji Takeshige