Patents by Inventor Yukari Shinada

Yukari Shinada 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
    Patent number: 5342544
    Abstract: A nematic liquid crystal composition comprising at least one member selected from 4-alkyl- or 4-alkoxy-benzoic acids represented by the following general formula (I) , particularly a nematic liquid crystal composition comprising a carboxylic acid mixture composed of at least one member selected from 4-alkyl- or 4-alkoxy-benzoic acids represented by the following general formula (I) and at least one member selected from 4-alkylcyclohexanecarboxylic acids represented by the following general formula (IV): ##STR1## wherein R.sub.1 stands for an alkyl or alkoxy group having 1 to 12 carbon atoms and R.sub.4 stands for an alkyl group having 1 to 12 carbon atoms.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: August 30, 1994
    Assignees: Asahi Denka Kogyo Kabushiki Kaisha, Citizen Watch Co., Ltd.
    Inventors: Tomijiro Naito, Yumiko Sato, Toshiro Yukinari, Toshihiro Shibata, Masaki Kimura, Yukari Shinada