Patents by Inventor Kanetaka Shimizu

Kanetaka Shimizu 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).

  • Liquid crystal composition containing an optically active compound and liquid crystal electro-optical element
    Patent number: 7108895
    Abstract: It is to provide a liquid crystal composition containing at least one type of optically active compounds of the following formulae (1) to (4), and a liquid crystal electro-optical element excellent in display quality.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: September 19, 2006
    Assignee: Seimi Chemical Co., Ltd.
    Inventors: Osamu Yokokouji, Tamon Tachibana, Masaki Oiwa, Kanetaka Shimizu, Takeshi Koike