Ferroelectric chiral smectic liquid crystal composition and liquid crystal device using same

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United States of America Patent

PATENT NO 5599479
SERIAL NO

07370987

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Abstract

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A ferroelectric chiral smectic liquid crystal composition, comprising at least one optically active compound represented by the following formula (I): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 1-18 carbon atoms capable of having a subtituent; X.sub.1 denotes a single bond, ##STR2## Z denotes a single bond or ##STR3## denotes ##STR4## and n is an integer of 1-12; and at least one compound represented by the following formula (II): ##STR5## wherein R.sub.2 and R.sub.3 respectively denote a linear or branched optically inactive alkyl group having 1-18 carbon atoms capable of having an alkoxy group of 1-12 carbon atoms; X.sub.2 and X.sub.3 respectively denote a single bond, ##STR6## and p and q are respectively 0, 1 or 2 with proviso that both of p and q are not 0.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHA30-2 SHIMOMARUKO 3-CHOME OHTA-KU TOKYO 1468501 ?1468501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Katagiri, Kazuharu Tama, JP 125 2069
Kimura, Yoshiko Hiratsuka, JP 5 33
Kitayama, Hiroyuki Sagamihara, JP 48 674
Shinjo, Kenji Atsugi, JP 85 955
Takiguchi, Takao Tokyo, JP 175 4038
Terada, Masahiro Atsugi, JP 164 1462
Togano, Takeshi Yokohama, JP 85 622
Yamashita, Masataka Hiratsuka, JP 87 791
Yoshida, Akio Chigasaki, JP 110 1369

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