公开(公告)号：DE69909344T2

公开(公告)日：2004-05-27

申请号：DE69909344

申请日：1999-02-05

Applicant: CANON KK

Inventor： ASAOKA MASANOBU ,  ISHIZAKI AKEMI ,  HOSOI NOBUYUKI ,  MISUDA KATSUTOSHI

IPC: B41M5/52 ,  C01F7/02 ,  C08K3/22 ,  B41M5/00

Abstract: Provided is a fine powder material for forming an ink-receiving layer on a recording medium, wherein a pore radius maximum exists within a range of from 90 to 120 ANGSTROM in a pore radius distribution of said fine powder material and wherein a total volume of pores having radii not exceeding 50 ANGSTROM is not more than 6.0 % of a volume of all pores.

公开(公告)号：DE69909344D1

公开(公告)日：2003-08-14

申请号：DE69909344

申请日：1999-02-05

Applicant: CANON KK

Inventor： ASAOKA MASANOBU ,  ISHIZAKI AKEMI ,  HOSOI NOBUYUKI ,  MISUDA KATSUTOSHI

IPC: B41M5/52 ,  C01F7/02 ,  C08K3/22 ,  B41M5/00

Abstract: Provided is a fine powder material for forming an ink-receiving layer on a recording medium, wherein a pore radius maximum exists within a range of from 90 to 120 ANGSTROM in a pore radius distribution of said fine powder material and wherein a total volume of pores having radii not exceeding 50 ANGSTROM is not more than 6.0 % of a volume of all pores.

公开(公告)号：DE68929393D1

公开(公告)日：2002-05-23

申请号：DE68929393

申请日：1989-06-22

Applicant: CANON KK

Inventor： HANYU YUKIO ,  TANIGUCHI OSAMU ,  UCHIMI TOSHIHARU ,  ASAOKA MASANOBU

IPC: G02F1/1339 ,  G02F1/1341 ,  G02F1/141 ,  G02F1/133 ,  G02F1/137

Abstract: A process for producing a liquid crystal device, comprising:(a) providing a pair of substrates (102,103), dispersing adhesive particles (106) on one substrate and dispersing rigid spacer particles (105) having an average diameter smaller than that of the adhesive particles on the other substrate,(b) superposing said one and the other substrates with each other so that the adhesive particles and the rigid spacer particles are disposed between the substrates,(c) applying a heat and a pressure to bond the substrates with adhesive particles in a cured and depressed state while leaving a gap determined by the rigid spacer particles between the substrates, and(d) disposing a liquid crystal (104) at the gap between the substrates to form a liquid crystal cell.

公开(公告)号：DE69707772D1

公开(公告)日：2001-12-06

申请号：DE69707772

申请日：1997-07-21

Applicant: CANON KK

Inventor： ASAOKA MASANOBU ,  TAKAO HIDEAKI ,  SATO KOICHI ,  TERADA MASAHIRO ,  NAKAMURA SHINICHI ,  NAKAZAWA IKUO

IPC: G02F1/137 ,  C09K19/02 ,  G02F1/1337

Abstract: A liquid crystal device is constituted by a pair of transparent substrates each having thereon a transparent electrode, and a chiral smectic liquid crystal composition lacking cholesteric phase disposed between the substrates so as to assume at least two optically stable states. At least one of the substrates is provided with an alignment film which comprises a polyimide represented by a recurring unit of formula (I) shown below and has been subjected to a uniaxial aligning treatment. wherein A denotes a tetravalent aliphatic hydrocarbon group free from a planar structure or a tetravalent alicyclic hydrocarbon group, and n is an integer of at least 1. The chiral smectic liquid crystal composition may preferably contain at least one species of fluorine-containing mesomorphic compound comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion connected with a central core and having a smectic phase or a latent smectic phase.

公开(公告)号：AT208055T

公开(公告)日：2001-11-15

申请号：AT95118452

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 ).

公开(公告)号：DE69230786T2

公开(公告)日：2000-08-03

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 ).

公开(公告)号：AT180580T

公开(公告)日：1999-06-15

申请号：AT91103125

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.

公开(公告)号：DE69219493T2

公开(公告)日：1997-11-27

申请号：DE69219493

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.

公开(公告)号：DE69217154D1

公开(公告)日：1997-03-13

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.

公开(公告)号：DE69021258D1

公开(公告)日：1995-09-07

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.