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    4.
    发明专利
    未知

    公开(公告)号：DE60110007D1

    公开(公告)日：2005-05-19

    申请号：DE60110007

    申请日：2001-09-26

    Applicant: CANON KK

    Inventor： ASAOKA MASANOBU ,  ONUMA KENJI ,  MISUDA KATSUTOSHI

    IPC: B41M5/00 ,  B41M5/50 ,  B41M5/52

    Abstract: An ink-jet recording medium comprising a base material and an ink-receiving layer provided thereon. The ink-receiving layer comprises an upper layer containing an aluminum-based pigment and a lower layer containing an aluminum-based pigment having a BET specific surface area larger than that of the aluminum-based pigment contained in the upper layer.

    5.
    发明专利
    未知

    公开(公告)号：DE69131258D1

    公开(公告)日：1999-07-01

    申请号：DE69131258

    申请日：1991-03-01

    Applicant: CANON KK

    Inventor： HANYU YUKIO ,  INABA YUTAKA ,  ASAOKA MASANOBU ,  TANIGUCHI OSAMU ,  SHINJO KENJI ,  UCHIMI TOSHIHARU

    IPC: G02F1/1337 ,  G02F1/141 ,  G09G3/36 ,  G02F1/137

    Abstract: A ferroelectric liquid crystal element comprises a ferroelectric liquid crystal and a pair of substantially parallel substrates having opposite surfaces between which the ferroelectric liquid crystal is sealed. The substrates are provided with electrodes to which voltages are applied, and are subjected to one axis parallel orientation treatment (A) so as to orient the ferroelectric liquid crystal. The ferroelectric liquid crystal shows a Chevron layer structure. The pretilt angle alpha of the liquid crystal to the orientation film is in the range 12 DEG -30 DEG , whereby a stable C1U orientation state is obtained at 90% density or more.

    6.
    发明专利
    未知

    公开(公告)号：DE69127569D1

    公开(公告)日：1997-10-16

    申请号：DE69127569

    申请日：1991-04-02

    Applicant: CANON KK

    Inventor： HANYU YUKIO ,  ASAOKA MASANOBU

    IPC: C08G73/10 ,  G02F1/1337

    Abstract: A ferroelectric liquid crystal device and apparatus having a pair of substrates with orientation control films of a fluorine-containing aliphatic polyimide or a fluorine-containing alicyclic polyimide. The fluorine-containing aliphatic polyimide or alicyclic polyimide has a structural unit expressed by the following general formula [I]: wherein R1 is a tetravalent organic residue and R2 is a divalent organic residue, at least one of R1 and R2 being an alicyclic or aliphatic organic residue containing fluorine and n is 0 or 1.

    7.
    发明专利
    未知

    公开(公告)号：AT152841T

    公开(公告)日：1997-05-15

    申请号：AT92102070

    申请日：1992-02-07

    Applicant: CANON KK

    Inventor： TOGANO TAKESHI ,  TAKIGUCHI TAKAO ,  TAKAO HIDEAKI ,  HANYU YUKIO ,  ASAOKA MASANOBU ,  IWAKI TAKASHI

    IPC: G02F1/133 ,  C08G73/10 ,  G02F1/1337

    Abstract: A liquid crystal device is formed by applying an alignment film on at least one of a pair of substrates sandwiching a liquid crystal, preferably a chiral smectic liquid crystal. The alignment is formed by a dehydro-cyclization product of a polyamide acid which in turn is a reaction product of naphthalenetetracarboxylic acid or its derivative with a diamine or its derivative. The liquid crystal device provides a high contrast display, particularly by multiplexing drive, which is free from after-image because of quick responsiveness.

    8.
    发明专利
    未知

    公开(公告)号：DE69216548D1

    公开(公告)日：1997-02-20

    申请号：DE69216548

    申请日：1992-10-29

    Applicant: CANON KK

    Inventor： SHINJO KENJI ,  KITAYAMA HIROYUKI ,  ASAOKA MASANOBU ,  TERADA MASAHIRO ,  YAMADA SYUJI ,  MIZUNO HIROSHI

    IPC: G02F1/1337 ,  G02F1/141 ,  G02F1/137

    Abstract: A ferroelectric liquid crystal device showing improved uniform alignment characteristic and switching characteristic is constituted by a pair of an upper substrate and a lower substrate, and a chiral smectic liquid crystal disposed between the upper and lower substrates. Each of the upper and lower substrates has thereon an electrode for applying a voltage to the liquid crystal and a uniaxial alignment film. The alignment films on the upper and lower substrates are provided with uniaxial alignment axes which cross each other so that the direction of crossing of the uniaxial alignment axes from the lower substrate to the upper substrate is identical to the direction of helical twist in cholesteric phase of the chiral smectic liquid crystal, and the chiral smectic liquid crystal is disposed in such an alignment state that the liquid crystal shows a pretilt angle a, a cone angle H pi beta , an inclination angle w of SmC* layer, and an apparent tilt angle ra satisfying relationships of; H pi beta ra > H pi beta /2. The crossing direction may preferably have a polarity (taken as "positive" in clockwise direction and "negative" in anticlockwise direction) which is the same as the polarity of the spontaneous polarization of the liquid crystal.

    9.
    发明专利
    未知

    公开(公告)号：ES2076252T3

    公开(公告)日：1995-11-01

    申请号：ES90108755

    申请日：1990-05-09

    Applicant: CANON KK

    Inventor： HANYU YUKIO ,  ASAOKA MASANOBU

    IPC: C08G73/10 ,  G02F1/1337

    Abstract: A liquid crystal device is formed by applying an alignment film comprising a fluorine-containing polyimide having a substituent of a fluorine atom or a fluorine containing group in its moiety originated from the carboxylic acid anhydride on at least one of a pair of substrates sandwiching a chiral smectic liquid crystal. Preferably, the respective substrates are provided with such fluorine-containing polyimide alignment films which have been rubbed in directions which are substantially parallel with each other and identical to each other or which intersect each other at a small counter-clockwise intersection angle. The liquid crystal device thus formed shows a high contrast display, particularly by multiplexing drive, free from after-image because of quick responsiveness.

    10.
    发明专利
    未知

    公开(公告)号：DE68920919T2

    公开(公告)日：1995-06-01

    申请号：DE68920919

    申请日：1989-06-23

    Applicant: CANON KK

    Inventor： SHINJO KENJI ,  TAKIGUCHI TAKAO ,  KITAYAMA HIROYUKI ,  KATAGIRI KAZUHARU ,  YAMASHITA MASATAKA ,  TERADA MASAHIRO ,  TOGANO TAKESHI ,  ASAOKA MASANOBU

    IPC: C07D271/10 ,  C07D285/12 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46

    Abstract: 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 of C1 - C12 alkoxy group; X1 and X2 respectively denote a single bond, -O-, -O @-, - @O-, -O @O- or - @-; 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 capablg of having a substituent; X3 and X4 respectively denote a single bond, -O-, -O @- or -@O-; Z1 denotes - @O-, -O@-, -CH2O-, -OCH2- or a single bond; with proviso that at least one of and at least one compound represented by the following formula (III): wherein R5 denotes a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X5 denotes a single bond, -O- or - @O-; Z2 denotes a single bond or - @O-; and m is 1 - 12. ;

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