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71. 发明专利

DE69224361D1 未知
公开(公告)号：DE69224361D1
公开(公告)日：1998-03-12
申请号：DE69224361
申请日：1992-11-12
申请人： CANON KK
发明人： IWAKI TAKASHI , TAKIGUCHI TAKAO , TOGANO TAKESHI , YAMADA YOKO , NAKAMURA SHINICHI
IPC分类号： C07C13/465 , C07C25/22 , C07C25/24 , C07C43/188 , C07C43/21 , C07C43/215 , C07C43/23 , C07D213/16 , C07D213/30 , C07D213/50 , C07D213/64 , C07D213/65 , C07D237/08 , C07D239/26 , C07D239/34 , C07D241/12 , C07D241/18 , C07D241/24 , C07D263/58 , C07D277/22 , C07D277/66 , C07D285/12 , C07D333/08 , C07D333/16 , C07D333/38 , C07D405/12 , C07D409/12 , C07D417/04 , C09K19/32 , C09K19/34 , C09K19/46 , C07C13/28

72. 发明专利

AT153015T 未知
公开(公告)号：AT153015T
公开(公告)日：1997-05-15
申请号：AT93102136
申请日：1993-02-11
申请人： CANON KK
发明人： NAKAMURA SHINICHI , TAKIGUCHI TAKAO , SHINJO KENJI , IWAKI TAKASHI , TOGANO TAKESHI , YAMADA YOKO
IPC分类号： C07C49/443 , C07C49/67 , C07C49/697 , C07C49/755 , C07C69/63 , C07C69/75 , C07C69/753 , C07C69/757 , C07C69/76 , C07C69/773 , C07C69/86 , C07C69/90 , C07C69/92 , C07C69/94 , C07C255/47 , C07C255/50 , C07C323/20 , C07C327/28 , C07D213/30 , C07D213/50 , C07D213/55 , C07D213/65 , C07D213/79 , C07D213/80 , C07D239/26 , C07D239/28 , C07D239/34 , C07D263/56 , C07D263/57 , C07D277/22 , C07D277/24 , C07D277/30 , C07D277/56 , C07D277/64 , C07D277/66 , C07D285/12 , C07D307/24 , C07D333/16 , C07D333/22 , C07D333/24 , C07D333/32 , C07D333/38 , C07D401/04 , C07D401/12 , C07D409/04 , C07D409/12 , C07D413/04 , C07D417/04 , C07D417/12 , C09K19/32 , C09K19/34 , G02F1/13 , C07C49/313 , C07D239/24 , C07D213/02
摘要： A mesomorphic compound of the formula (I) and an optically active compound of formula (II) are suitable as a component for a liquid crystal composition providing improved response characteristics and having an improved helical pitch at a cholesteric phase or a chiral smectic C phase. The above liquid crystal composition is useful as an element of a liquid crystal device providing a good display characteristics including a gradation display.

73. 发明专利

CA2034309C MESOMORPHIC COMPOUND, LIQUID CRYSTAL COMPOSITION CONTAINING SAME, LIQUID CRYSTAL DEVICE USING SAME AND DISPLAY APPARATUS 未知
公开(公告)号：CA2034309C
公开(公告)日：1997-04-01
申请号：CA2034309
申请日：1991-01-16
申请人： CANON KK
发明人： IWAKI TAKASHI , TAKIGUCHI TAKAO , TOGANO TAKESHI , YAMADA YOKO , NAKAMURA SHINICHI
IPC分类号： C07D277/64 , C07D277/66 , C07D417/04 , C07D417/10 , C09K19/34 , C09K19/42 , C09K19/40
摘要： A mesomorphic compound represented by the following formula (I): R1-A1-B1-A2-R2 (I), wherein R1 and R2 respectively denote a linear or branched alkyl group having 3 - 18 carbon atoms capable of including one or non-neighboring two or more methylene groups which can be replaced with at least one species of -Z-, , , , , , , -CH=CH- and -C wherein Z denotes -O- or -S- and R3 denotes hydrogen or an alkyl group having 1 - 5 carbon atoms; B1 denotes or ; A1 denotes a single bond, or ; A2 denotes a single bond, -A3- or -A3-A4- wherein A3 and A4 respectively denote any one of A1, , , , , , , and ; and Y1 and Y2 respectively denote any one of hydrogen, fluorine, chlorine, bromine, -CH3, -CN and -CF3. Liquid crystal compositions containing the compound of formula (I) exhibit improved responsiveness to an electric field and are particularly suited for use in a number of liquid crystal devices such as display apparatus, crystal-optical shutters, etc.

74. 发明专利

DE68925987T2 未知
公开(公告)号：DE68925987T2
公开(公告)日：1996-11-14
申请号：DE68925987
申请日：1989-03-28
申请人： CANON KK
发明人： SHINJO KENJI , JOSHIDA AKIO , IWAKI TAKASHI , TAKIGUCHI TAKAO , KITAYAMA HIROYUKI , KATAGIRI KAZUHARA
IPC分类号： C07D271/10 , C07D285/12 , C09K19/34 , C09K19/42

75. 发明专利

DE69121787D1 未知
公开(公告)号：DE69121787D1
公开(公告)日：1996-10-10
申请号：DE69121787
申请日：1991-06-07
申请人： CANON KK
发明人： TAKIGUCHI TAKAO , IWAKI TAKASHI , TOGANO TAKESHI , YAMADA YOKO , NAKAMURA SHINICHI
IPC分类号： G02F1/13 , C07D263/56 , C07D263/57 , C09K19/34 , C09K19/42
摘要： A mesomorphic compound represented by the following formula (I): wherein R1 and R2 respectively denote an alkyl group or alkoxy group each having 4 - 16 carbon atoms optionally substituted, halogen, -CN or -CF3. The mesomorphic compound is effective for providing a ferroelectric liquid crystal composition showing an improved low-temperature operation characteristic and a decreased temperature-dependence of response speed.

76. 发明专利

AT142246T 未知
公开(公告)号：AT142246T
公开(公告)日：1996-09-15
申请号：AT89111490
申请日：1989-06-23
申请人： CANON KK
发明人： SHINJO KENJI , TAKIGUCHI TAKAO , KITAYAMA HIROYUKI , KATAGIRI KAZUHARU , TERADA MASAHIRO , TOGANO TAKESHI , YAMASHITA MASATAKA , IWAKI TAKASHI , MORI SHOSEI
IPC分类号： C07D271/10 , C07D285/12 , C09K19/34 , C09K19/42 , C09K19/46
摘要： A ferroelectric chiral smectic liquid crystal composition, comprising at least one compound represented by the following formula (I): wherein R1 and R2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent, at least one of R1 and R2 being optically active; and X1 denotes a single bond, -O-, - @-, -O@-, - @O- or -O@O-; and at least one compound represented by the following formula (II): wherein R3 and R4 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X2 and X3 respectively denote a single bond, -O-, -O @-, -@O- or -O@O-; and m and n are respectively 0, 1 or 2 with proviso that m + n = 2 or more.

77. 发明专利

AT139235T 未知
公开(公告)号：AT139235T
公开(公告)日：1996-06-15
申请号：AT91115683
申请日：1991-09-16
申请人： CANON KK
发明人： IWAKI TAKASHI , TAKIGUCHI TAKAO , TOGANO TAKESHIO , YAMADA YOKO , NAKAMURA SHINICHI
IPC分类号： G02F1/13 , C07F7/08 , C07F7/10 , C09K19/40 , C09K19/42 , G02F1/1337
摘要： A mesomorphic compound represented by the following formula (I): wherein R1 denotes a linear or branched alkyl group having 2 - 16 carbon atoms capable of including one or non-neighboring two methylene groups which can be replaced with -O-, -S-, -CO-, -COO- or -OCO- and capable of including a hydrogen atom which can be replaced with a fluorine atom; A denotes -A1- or -A1-A2-; B2 denotes -B3- or -B3-B4-; A1, A2, B1, B3 and B4 independently denote wherein Y1 and Y2 independently denote a hydrogen atom, F, Cl, Br, -CH3, -CN or -CF3, with the proviso that B1 can be a single bond; Z1 and Z2 independently denote a single bond, -COO-, -OCO-, -CH2O- or -OCH2-; Z3 denotes -O-, -CO-, -COO- or -OCO-; R2, R3 and R4 independently denote a linear or branched alkyl group having 1 - 16 carbon atoms capable of including one or two methylene groups, other than those directly connected to Si, which can be replaced with -O-, -COO- or -OCO- with the proviso that -O- cannot directly be connected to -O-; l and m independently denote 0 or 1 with the proviso that l+m NOTEQUAL 0; n is an integer of 1 - 12; and X and Q independently denote CH or N with the proviso that X and Q cannot be N simultaneously. The mesomorphic compound is effective for providing a ferroelectric liquid crystal composition showing an improved low-temperature operation characteristic and a decreased temperature-dependence of response speed.

78. 发明专利

DE69025971D1 未知
公开(公告)号：DE69025971D1
公开(公告)日：1996-04-25
申请号：DE69025971
申请日：1990-04-11
申请人： CANON KK
发明人： MORI SHOSEI , TOGANO TAKESHI , TAKIGUCHI TAKAO , IWAKI TAKASHI , YAMADA YOKO
IPC分类号： G02F1/13 , C07D333/16 , C07D333/32 , C07D333/38 , C09K19/34 , C09K19/46 , G02F1/137
摘要： A mesomorphic compound represented by the following formula (I): wherein R1 and R2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X denotes any one of a single bond, -O-, - @O-, -O @-, -O@O- and - @-; Y denotes - @O- or -CH2O-; and Z denotes any one of -O-, -O @- and -O @O-.

79. 发明专利

DE69205451T2 未知
公开(公告)号：DE69205451T2
公开(公告)日：1996-03-28
申请号：DE69205451
申请日：1992-01-28
申请人： CANON KK
发明人： NOHIRA HIROYUKI , TAKIGUCHI TAKAO , IWAKI TAKASHI , TOGANO TAKESHI , YAMADA YOKO , NAKAMURA SHINICHI
IPC分类号： C07D277/66 , C09K19/34 , C09K19/42 , G02F1/13

80. 发明专利

DE69116735D1 未知
公开(公告)号：DE69116735D1
公开(公告)日：1996-03-14
申请号：DE69116735
申请日：1991-05-27
申请人： CANON KK
发明人： TOGANO TAKESHI , TAKIGUCHI TAKAO , IWAKI TAKASHI , YAMADA YOKO , NAKAMURA SHINICHI
IPC分类号： G02F1/13 , C07D333/16 , C07D333/32 , C07D333/38 , C07D409/12 , C07D413/12 , C07D417/12 , C09K19/34 , C09K19/42 , C07D409/10
摘要： A mesomorphic compound represented by the following formula (I): wherein R1 and R2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of including one or two or more non-neighboring methylene groups which can be replaced with -O-, -S-, -CH=CH-, -C IDENTICAL C- or wherein X denotes halogen; X1 and X2 respectively denote Z1 denotes or -CH2O-; A1 denotes a single bond, and Y1 and Y2 respectively denote H, F, Cl, Br, -CH3 or -CF3 with the proviso that Y1 and Y2 are not simultaneously H. The mesomorphic compound is effective for providing a ferroelectric liquid crystal composition showing an improved low-temperature operation characteristic and a decreased temperature-dependence of response speed.

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