Patents by Inventor Kishiroo Iwasaki

Kishiroo Iwasaki 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).

  • Ferroelectric liquid crystal compounds and liquid crystal compositions
    Patent number: 4576732
    Abstract: The present invention is characterized by a smectic liquid crystal compound represented by the following formula: ##STR1## wherein R is selected from alkyl and alkoxy groups; X from ##STR2## m and n are natural numbers; and R* is an optically active group containing an asymmetric carbon atom, and a liquid crystal composition containing said compound as a component. This compound is excellent in optical stability and high-speed response.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: March 18, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Masato Isogai, Shintaroo Hattori, Kishiroo Iwasaki, Teruo Kitamura, Akio Mukoh, Takashi Inukai, Kenji Furukawa, Kanetsugu Terashima, Shinichi Saitoh