Patents by Inventor Hisayo Hosokai

Hisayo Hosokai 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).

  • Azo compound and liquid crystal composition containing the same
    Patent number: 5104572
    Abstract: A novel azo compound, which has a high dichroic ratio as well as a high solubility in liquid crystals, and a liquid crystal composition containing the same as disclosed. The liquid crystal composition enables an excellent and clear color display.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: April 14, 1992
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tetsuo Ozawa, Hisayo Hosokai