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公开(公告)号：DE60135528D1
公开(公告)日：2008-10-09
申请号：DE60135528
申请日：2001-09-06
Applicant: CANON KK
Inventor： ASAOKA MASANOBU , MISUDA KATSUTOSHI
Abstract: A recording medium comprising a base material and an ink-receiving layer provided on the base material and containing a particulate material, the particulate material containing particles of crystalline aluminum oxide, the ink-receiving layer being obtained by applying a coating solution containing the particulate material to the base material followed by drying to form a coating layer, applying water to the coating layer to cause swelling and pressing the surface thereof against a heated mirror-surface drum to conduct drying treatment, wherein the specular gloss of the surface of the ink-receiving layer is not less than 20% as measured at 20 DEG .
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公开(公告)号：DE69232178T2
公开(公告)日：2002-06-06
申请号：DE69232178
申请日：1992-12-10
Applicant: CANON KK
Inventor： HANYU YUKIO , ONUMA KENJI , HOTTA YOSHIO , TANIGUCHI OSAMU , TAKAO HIDEAKI , ASAOKA MASANOBU , MIHARA TADASHI , KODERA YASUTO , KOJIMA MAKOTO , NAKAMURA KATSUTOSHI , WADA TAKATSUGU
IPC: B82B1/00 , G02F1/1333 , G02F1/1337 , G02F1/141 , G02F1/137
Abstract: A ferroelectric liquid crystal device of a cell structure having a suppressed increase of cell thickness along a cell side is constituted by disposing a ferroelectric liquid crystal between a pair of substrates each being provided with an electrode for driving a liquid crystal and disposed opposite to each other. Each of the substrates further has on the electrode at least one layer of an alignment control film subjected to an uniaxial aligning treatment. For suppressing a liquid crystal movement, said alignment film is formed on an uneven surface having a surface unevenness providing a difference in height of at most 50 nm (500 ANGSTROM ) and an average pitch of unevenness of at most 100 nm (1000 ANGSTROM ).
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公开(公告)号：DE69230786D1
公开(公告)日：2000-04-20
申请号：DE69230786
申请日：1992-12-10
Applicant: CANON KK
Inventor： HANYU YUKIO , ONUMA KENJI , HOTTA YOSHIO , TANIGUCHI OSAMU , TAKAO HIDEAKI , ASAOKA MASANOBU , MIHARA TADASHI , KODERA YASUTO , KOJIMA MAKOTO , NAKAMURA KATSUTOSHI , WADA TAKATSUGU
IPC: B82B1/00 , G02F1/1333 , G02F1/1337 , G02F1/141 , G02F1/137
Abstract: A ferroelectric liquid crystal device of a cell structure having a suppressed increase of cell thickness along a cell side is constituted by disposing a ferroelectric liquid crystal between a pair of substrates each being provided with an electrode for driving a liquid crystal and disposed opposite to each other. Each of the substrates further has on the electrode at least one layer of an alignment control film subjected to an uniaxial aligning treatment. For suppressing a liquid crystal movement, said alignment film is formed on an uneven surface having a surface unevenness providing a difference in height of at most 50 nm (500 ANGSTROM ) and an average pitch of unevenness of at most 100 nm (1000 ANGSTROM ).
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公开(公告)号：DE69221812D1
公开(公告)日：1997-10-02
申请号：DE69221812
申请日：1992-10-21
Applicant: CANON KK
Inventor： ASAOKA MASANOBU , TAKAO HIDEAKI , HANYU YUKIO , KOJIMA MAKOTO
IPC: C08G73/10 , G02F1/1337
Abstract: A liquid crystal device is constituted by a pair of substrates each provided with a transparent electrode, and a liquid crystal disposed between the substrates; at least one of said pair of substrates having thereon an alignment film comprising (i) a polyimide including principally a recurring unit of the following structural formula (I): wherein R denotes a tetravalent organic group, and R and R denote the same or different alkyl or perfluoroalkyl groups having 1 - 10 carbon atoms, and also at most 20 mol. % of a recurring monoamine unit of the following structural formula (II): wherein R and R denote the same or different alkyl or perfluoroalkyl groups having 1 - 10 carbon atoms, and X denotes an aromatic group, a heterocyclic group or a derivative group thereof; or (ii) a polyimide obtained through a reaction of at least two species of tetracarboxylic anhydrides of the following formula (III): wherein R denotes a tetravalent organic group, and a diamine of the following formula (IV): wherein R and R denote the same or different alkyl or perfluoroalkyl groups having 1 - 10 carbon atoms.
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公开(公告)号：DE69217154T2
公开(公告)日：1997-06-19
申请号：DE69217154
申请日：1992-10-29
Applicant: CANON KK
Inventor： HANYU YUKIO , ASAOKA MASANOBU
IPC: C08G73/10 , G02F1/1337
Abstract: A liquid crystal device improved in contrast and freeness from flickering and after image is formed by disposing a liquid crystal between a pair of substrates, at least one of which has an alignment film of a polyimide having a fluoroalkyl chain group as a side chain. The fluoroalkyl chain group may be contained in a diamine-originated moiety or a carboxylic acid-originated moiety of the polyimide.
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Patent Agency Ranking
公开(公告)号：ES2098416T3
公开(公告)日：1997-05-01
申请号：ES92118521
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.
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公开(公告)号：AT147519T
公开(公告)日：1997-01-15
申请号：AT92118521
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.
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公开(公告)号：DE69022629T2
公开(公告)日：1996-04-11
申请号：DE69022629
申请日：1990-05-30
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 fluorine-containing substituent in its moiety originated from a diamine 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.
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公开(公告)号：DE69021258T2
公开(公告)日：1996-02-08
申请号：DE69021258
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.
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公开(公告)号：ES2076990T3
公开(公告)日：1995-11-16
申请号：ES90110314
申请日：1990-05-30
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 fluorine-containing substituent in its moiety originated from a diamine 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.
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