Patents by Inventor Kazunori Nigorikawa

Kazunori Nigorikawa 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).

  • 4-Unsubstituted or substituted-4 cyanotercyclohexane derivatives
    Patent number: 4534883
    Abstract: A liquid crystal substance having a high nematic-clearing point and a broad nematic temperature range and yet a low viscosity, and a composition containing the same, are provided, which substance is 4-unsubstituted or substituted-4"-cyano-trans,trans,trans-tercyclohexanes expressed by the general formula ##STR1## wherein R represents hydrogen atom or an alkyl group of 1 to 10 carbon atoms.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: August 13, 1985
    Assignee: Chisso Corporation
    Inventors: Shigeru Sugimori, Tetsuhiko Kojima, Toyoshiro Isoyama, Kazunori Nigorikawa