Patents by Inventor Motonari Matsuki

Motonari Matsuki 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).

  • Smectic C liquid crystal composition and a liquid crystal display element
    Patent number: 5658492
    Abstract: A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided,which composition containing a smectic C compound comprises at least one compound expressed by the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represent different linear alkyl groups of 1 to 9 C, andat least one compound-expressed by the formula (II) ##STR2## wherein R.sup.3 and R.sup.4 each represent the same or different linear alkyl groups of 1 to 18 C and X is H or F.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: August 19, 1997
    Assignees: Chisso Corporation, Sharp Kabushiki Kaisha
    Inventors: Katsuyuki Murashiro, Eiji Okabe, Makoto Kikuchi, Mayumi Tanabe, Masatoshi Fukushima, Shinichi Saito, Hitoshi Takeda, Makoto Shiomi, Takashi Kaneko, Motonari Matsuki, Mitsuhiro Koden
  • Smectic C liquid crystal composition and a liquid crystal display element
    Patent number: 5529717
    Abstract: A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided,which composition containing a smectic C compound comprises at least one compound expressed by the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represent different linear alkyl groups of 1 to 9 C, andat least one compound expressed by the formula (II) ##STR2## wherein R.sup.3 and R.sup.4 each represent the same or different linear alkyl groups of 1 to 18 C and X is H or F.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: June 25, 1996
    Assignees: Chisso Corporation, Sharp Kabushiki Kaisha
    Inventors: Katsuyuki Murashiro, Eiji Okabe, Makoto Kikuchi, Mayumi Tanabe, Masatoshi Fukushima, Shinichi Saito, Hitoshi Takeda, Makoto Shiomi, Takashi Kaneko, Motonari Matsuki, Mitsuhiro Koden