Patents by Inventor Hiromichi Ioue

Hiromichi Ioue 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).

  • Optically active alkanoyloxy 2,5-diphenyl pyrimidine and liquid crystal compositions
    Patent number: 4900473
    Abstract: The present invention provides new optically active 2,5-diphenyl pyrimidine derivatives, optically active liquid crystal compositions containing the derivatives and electro optical elements comprising the compositions.The derivatives have the following general formula: ##STR1## wherein R indicates an alkyl or alkoxy group having 2-20 carbon atoms and R* indicates an optically active alkyl group having 4-20 carbon atoms.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: February 13, 1990
    Assignee: Chisso Corporation
    Inventors: Kazutoshi Miyazawa, Hiromichi Ioue, Shinichi Saito, Kouji Ohno, Makoto Ushioda