Patents Assigned to Kawamura Institute of Chemical Res.
  • Novel liquid crystalline compounds having substituents
    Patent number: 4828754
    Abstract: A liquid crystalline compound represented by formula ##STR1## wherein R denotes an alkyl or alkoxy group having 1 to 20 carbon atoms,m and n are each 0 or 1, provided m and n are not 1 at the same time. ##STR2## X and Y each denote a hydrogen atom, a halogen atom or a nitro group, provided X and Y are not hydrogen atoms at the same time, and Q* denotes an optically active group having an asymmetric carbon atom and a linear or cyclic alkyl or alkenyl group which may be substituted by a halogen atom, or the like.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: May 9, 1989
    Assignees: Dainippon Ink & Chemicals, Inc., Kawamura Institute of Chemical Res.
    Inventors: Sadao Takehara, Toru Fujisawa, Yoshi Arai, Jitsuo Kurokawa