Patents Assigned to Nippon Oil Company Co., Ltd
  • Electrorheological fluid comprising lyotropic liquid crystalline polymer and a cyclic ketone solvent
    Patent number: 5863469
    Abstract: An electrorheological fluid comprising a lyotropic liquid crystalline polymer uniformly dissolved in a cyclic ketone solvent or a mixed solvent of a cyclic ketone solvent and at least one electrically insulating solvent selected from a hydrocarbon-based oil, an ester-based oil, and an ether-based oil.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: January 26, 1999
    Assignee: Nippon Oil Company Co., Ltd
    Inventors: Katsuhiko Haji, Makoto Sasaki, Mitsuo Matsuno