公开(公告)号：US4965591A

公开(公告)日：1990-10-23

申请号：US241214

申请日：1988-09-07

申请人： Yutaka Kurabayashi ,  Toshikazu Ohnishi ,  Kazuo Yoshinaga ,  Akihiro Mouri ,  Kazuo Isaka ,  Shuzo Kaneko ,  Takeo Eguchi ,  Yomishi Toshida

发明人： Yutaka Kurabayashi ,  Toshikazu Ohnishi ,  Kazuo Yoshinaga ,  Akihiro Mouri ,  Kazuo Isaka ,  Shuzo Kaneko ,  Takeo Eguchi ,  Yomishi Toshida

IPC分类号： G02F1/133 ,  G02F1/1333 ,  G11B7/0055 ,  G11B7/241

CPC分类号： G11B7/25 ,  G02F1/132 ,  G02F1/133365 ,  G11B7/00555 ,  G11B7/241 ,  G11B7/245 ,  G11B7/2467 ,  G11B7/247 ,  G11B7/2531 ,  G11B7/2535 ,  G11B7/2585

摘要： A recording medium having a recording layer comprising a polymer liquid crystal is used for multivalue recording by using at least two different liquid crystal phases at least two levels of locally different liquid crystal proportion, or thicknesswise difference in an optical variable, such as transmittance a reflectance, generally through controlled heating and cooling. In effecting the recording, two heating sources may suitably be used, one for imagewise heating and the other for supplemental heating.

公开(公告)号：US5272552A

公开(公告)日：1993-12-21

申请号：US347920

申请日：1989-05-05

申请人： Kazuo Yoshinaga ,  Yutaka Kurabayashi ,  Kazuo Isaka ,  Shuzo Kaneko ,  Akihiro Mouri ,  Yomishi Toshida ,  Toshikazu Ohnishi ,  Takeo Eguchi

发明人： Kazuo Yoshinaga ,  Yutaka Kurabayashi ,  Kazuo Isaka ,  Shuzo Kaneko ,  Akihiro Mouri ,  Yomishi Toshida ,  Toshikazu Ohnishi ,  Takeo Eguchi

IPC分类号： G02F1/133 ,  G02F1/1333 ,  G11B7/0025 ,  G11B7/0055 ,  G02F1/13

CPC分类号： G02F1/132 ,  G02F1/133365 ,  G11B7/0025 ,  G11B7/00555

摘要： An optical modulation device is provided by forming an optical modulation layer comprising a polymer liquid crystal having a helical structure and a non-helical structure in chiral smectic C phase. The helical structure of the polymer liquid crystal is selectively formed or removed to provide a recorded state. The recorded state is held below the glass transition point of the polymer liquid crystal. The helical pitch of the helical structure can be selectively changed to form a recorded state. The helical structure can be formed to dispose its principal axis perpendicularly to the polymer liquid crystal layer. The recorded state may be read out by detecting a reflectance from the polymer liquid crystal layer.

公开(公告)号：US5038166A

公开(公告)日：1991-08-06

申请号：US291443

申请日：1988-12-28

申请人： Kazuo Isaka ,  Shuzo Kaneko ,  Akihiro Mouri ,  Kazuo Yoshinaga ,  Toshikazu Ohnishi ,  Yutaka Kurabayashi ,  Yomishi Toshida ,  Takeo Eguchi

发明人： Kazuo Isaka ,  Shuzo Kaneko ,  Akihiro Mouri ,  Kazuo Yoshinaga ,  Toshikazu Ohnishi ,  Yutaka Kurabayashi ,  Yomishi Toshida ,  Takeo Eguchi

IPC分类号： G02F1/1333 ,  G03F1/00 ,  G06K15/12 ,  G11B7/25

CPC分类号： G11B7/25 ,  G02F1/133365 ,  G03F7/202 ,  G06K15/1238

摘要： An optical image recording apparatus includes an image holding member comprising a polymer recording layer capable of recording and holding data through heat application, thermal recording means for applying heat to the polymer recording layer, a photosensitive member, and exposure means for recording the data recorded by the recording layer by the photosensitive member. The polymer recording layer is preferably composed from a polymer liquid crystal. The polymer recording layer and the photosensitivie member can be provided in a laminated form. The data recorded on the photosensitive member may be subjected to an electrophotographic image forming process.

摘要翻译： 光学图像记录装置包括图像保持部件，该图像保持部件包括能够通过热施加记录和保持数据的聚合物记录层，用于向聚合物记录层施加热量的热敏记录装置，感光部件和用于记录由 记录层由感光构件。 聚合物记录层优选由聚合物液晶组成。 聚合物记录层和光敏元件可以以层压形式提供。 记录在感光构件上的数据可以进行电子照相图像形成处理。

公开(公告)号：US5140447A

公开(公告)日：1992-08-18

申请号：US746182

申请日：1991-08-15

申请人： Shuzo Kaneko ,  Kazuo Isaka ,  Akihiro Mouri ,  Kazuo Yoshinaga ,  Toshikazu Ohnishi ,  Yutaka Kurabayashi ,  Takeo Eguchi ,  Yomishi Toshida

发明人： Shuzo Kaneko ,  Kazuo Isaka ,  Akihiro Mouri ,  Kazuo Yoshinaga ,  Toshikazu Ohnishi ,  Yutaka Kurabayashi ,  Takeo Eguchi ,  Yomishi Toshida

IPC分类号： C09K19/38 ,  G02F1/133 ,  G02F1/1333

CPC分类号： G02F1/132 ,  C09K19/38 ,  C09K19/3852 ,  G02F1/133365

摘要： A color display medium is constituted by a colored polymer layer having at least two display regions of different colors, typically three colors of blue, green and red, along the extension of the polymer layer. The display regions of different colors have respectively different wavelength regions of light absorption or respectively different temperatures of thermal transition between transparent and scattering states.

公开(公告)号：US5059000A

公开(公告)日：1991-10-22

申请号：US535978

申请日：1990-06-11

申请人： Shuzo Kaneko ,  Akihiro Mouri ,  Kazuo Isaka ,  Kazuo Yoshinaga ,  Toshikazu Ohnishi ,  Yomishi Toshida ,  Yutaka Kurabayashi ,  Takeo Eguchi

发明人： Shuzo Kaneko ,  Akihiro Mouri ,  Kazuo Isaka ,  Kazuo Yoshinaga ,  Toshikazu Ohnishi ,  Yomishi Toshida ,  Yutaka Kurabayashi ,  Takeo Eguchi

IPC分类号： G02F1/133 ,  G02F1/1333 ,  G11B7/0055 ,  G11B7/241

CPC分类号： G11B7/252 ,  G02F1/132 ,  G02F1/133365 ,  G11B7/00555 ,  G11B7/241

摘要： An image forming medium is constituted by a laminate including at least an optical scattering layer and a backing member preferably comprising a pattened color filter. The laminate is composed to have an interface between the optical scattering layer and the backing member capable of reflecting light incident to the optical scattering layer. The optical scattering layer may comprise a polymer liquid crystal optionally containing a fluorescent agent or nucleating agent so as to enhance the optical scattering effect. The interface may be given by a low-refractive index layer, such as air layer. The optical scattering layer and the backing member can be separated and combined with an adjusting means for adjusting the relative position of the optical scattering layer and the backing member to provide an image forming apparatus.

公开(公告)号：US5258134A

公开(公告)日：1993-11-02

申请号：US459271

申请日：1989-12-29

申请人： Kazuo Yoshinaga ,  Yutaka Kurabayashi ,  Koichi Sato ,  Takeo Eguchi ,  Yomishi Toshida

发明人： Kazuo Yoshinaga ,  Yutaka Kurabayashi ,  Koichi Sato ,  Takeo Eguchi ,  Yomishi Toshida

IPC分类号： G02F1/13 ,  C08G63/18 ,  C08G63/181 ,  C08G63/185 ,  C08G63/19 ,  C08G63/60 ,  C08G63/64 ,  C08G63/66 ,  C08G63/68 ,  C08G63/682 ,  C08G63/685 ,  C08G63/695 ,  C08G65/32 ,  C08L67/00 ,  C08L67/02 ,  C09K19/38 ,  G02F1/1333 ,  C09K19/52 ,  C09K19/06

CPC分类号： C08G63/18 ,  C09K19/3804 ,  C09K19/3809

摘要： A chiral smectic main chain-type polymer liquid crystal includes mesogen units and a flexible chain group connecting the mesogen units having a length equal to or longer than 1,4-butylene group. The polymer liquid crystal is also characterized by having at least two units having mutually different optically active groups and having at least two recurring units which show mutually reverse helical rotations in its chiral smectic phase. Because of these features, the polymer liquid crystal can show an improved responsiveness because of its chiral smectic ferroelectricity based on an elongated helical pitch while retaining a good film-formability of a main chain-type polymer liquid crystal.

公开(公告)号：US5252251A

公开(公告)日：1993-10-12

申请号：US458448

申请日：1989-12-28

申请人： Koichi Sato ,  Yutaka Kurabayashi ,  Kazuo Yoshinaga ,  Yomishi Toshida

发明人： Koichi Sato ,  Yutaka Kurabayashi ,  Kazuo Yoshinaga ,  Yomishi Toshida

IPC分类号： C07D303/22 ,  C07C43/205 ,  C07C43/23 ,  C07C65/21 ,  C07C69/533 ,  C07C69/708 ,  C07C69/92 ,  C07C69/94 ,  C07C235/08 ,  C08F20/36 ,  C08F116/14 ,  C08F116/36 ,  C08F118/02 ,  C08F120/26 ,  C08F120/42 ,  C08F120/58 ,  C08F126/02 ,  C08F299/02 ,  C09K19/08 ,  C09K19/10 ,  C09K19/30 ,  C09K19/34 ,  C09K19/38 ,  C09K19/40 ,  C09K19/42 ,  C09K19/52 ,  C08F26/00 ,  C08G59/00 ,  G02F1/13

CPC分类号： C09K19/3833 ,  C08F20/36 ,  C09K19/3857 ,  C09K19/388 ,  C09K19/408 ,  Y10T428/1005 ,  Y10T428/1014 ,  Y10T428/1018

摘要： A mesomorphic polymer comprises recurring units of the following formula (I): ##STR1## wherein U denotes a polymer main chain unit; V denotes --(CH.sub.2).sub.m -- or --((CH.sub.2).sub.2 --O).sub.m -- each capable of having a substituent selected from alkyl group, halogen atom, amino group or carbonyl group substituting one or more of the hydrogen atoms wherein m is an integer of 0-30; W denotes a single bond, --O--, --OCO--, --COO--, CONR.sup.1 --, --CO-- or --NR.sup.1 -- wherein R.sup.1 denotes hydrogen atom or alkyl group; X denotes a mesogen unit comprising at least two rings selected from aromatic carbon rings, aromatic heterocyclic rings and alicyclic rings each capable of having a substituent and connected with a single bond, --O--, --OCO--, --COO--, --(CH.sub.2).sub.n --, --N.dbd.N--, --(CH.dbd.CH).sub.m --, --CH.dbd.N--, --N.dbd.CH--, --(C.ident.C).sub.n 13 , --CONR.sup.1, --(CO).sub.n -- or NR.sup.1 -- wherein R.sup.1 is the same as defined above and n is an integer of 1-10; Y denotes --COOCH.sub.2 --, --OCH.sub.2 -- or --OCO--; Z denotes --R.sup.2 or --COR.sup.2 wherein R.sup.2 denotes hydrogen atom or alkyl group capable of having a substituent; and * denotes the location of an asymmetric carbon atom.

公开(公告)号：US5384069A

公开(公告)日：1995-01-24

申请号：US938596

申请日：1992-09-03

申请人： Kazuo Yoshinaga ,  Yutaka Kurabayashi ,  Toshikazu Ohnishi ,  Yukiko Futami ,  Takeshi Miyazaki

发明人： Kazuo Yoshinaga ,  Yutaka Kurabayashi ,  Toshikazu Ohnishi ,  Yukiko Futami ,  Takeshi Miyazaki

IPC分类号： C09K19/38 ,  G02F1/1333 ,  G02F1/141 ,  C09K19/00 ,  G02F1/13

CPC分类号： G02F1/133365 ,  C09K19/3809 ,  C09K19/3833 ,  G02F1/141 ,  Y10T428/1095

摘要： A polymeric liquid crystal composition includes a polymer mesomorphic compound having an asymmetric carbon atom and a low-molecular weight mesomorphic compound. The composition can be easily formed into a film of a large area, exhibits a response speed which is not substantially different from that of the low-molecular weight mesomorphic compound alone and stably retains alignment resistant to pressure or heat impact. Such a good alignment is especially obtained when the polymeric liquid crystal composition is incorporated in a liquid crystal device by being disposed between a pair of substrates preferably having an alignment face provided with an orientation characteristic for aligning the molecular axis of the liquid crystal composition in one direction. It is suitable that the polymer mesomorphic compound is optically active and has a helical rotation direction opposite to that of the low-molecular weight mesomorphic compound.

摘要翻译： 聚合物液晶组合物包括具有不对称碳原子的聚合物介晶化合物和低分子量介晶化合物。 组合物可以容易地形成大面积的膜，显示出与单独的低分子量介晶化合物基本上不同的响应速度，并且稳定地保持耐压力或热冲击的取向。 当聚合物液晶组合物通过配置在优选具有将液晶组合物的分子轴在一个对准方向上具有取向特性的对准面的一对基板配置在液晶装置中时，特别优选对准 方向。 聚合物介晶化合物是光学活性的并且具有与低分子量介晶化合物相反的螺旋旋转方向是合适的。

公开(公告)号：US5039208A

公开(公告)日：1991-08-13

申请号：US609067

申请日：1990-11-01

申请人： Toshikazu Ohnishi ,  Kazuo Yoshinaga ,  Takeshi Miyazaki ,  Yutaka Kurabayashi

发明人： Toshikazu Ohnishi ,  Kazuo Yoshinaga ,  Takeshi Miyazaki ,  Yutaka Kurabayashi

IPC分类号： G02F1/13 ,  C09K19/38 ,  C09K19/40 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/141

CPC分类号： C09K19/3857 ,  C09K19/38 ,  C09K19/3804 ,  C09K19/3852 ,  G02F1/133365

摘要： A crosslinked polymer liquid crystal is stretched to provide a polymer liquid crystal layer with a higher degree of uniform alignment than a non-crosslinked polymer liquid crystal. Such a stretched layer of crosslinked polymer liquid crystal is disposed between a pair of substrates to form a liquid crystal device showing a better contrast as a recording medium or display device. The improvement in alignment obtained by stretching of a crosslinked polymer liquid crystal is also effective in increasing the responsive characteristics in response to an electric field or magnetic field and also the pyro-electric effect of the resultant polymer liquid crystal layer where the polymer liquid crystal is a ferro-electric one.

公开(公告)号：US4995705A

公开(公告)日：1991-02-26

申请号：US133797

申请日：1987-12-16

申请人： Kazuo Yoshinaga ,  Takeshi Miyazaki ,  Toshikazu Ohnishi ,  Yutaka Kurabayashi ,  Yoshio Takasu ,  Tadashi Kobayashi

发明人： Kazuo Yoshinaga ,  Takeshi Miyazaki ,  Toshikazu Ohnishi ,  Yutaka Kurabayashi ,  Yoshio Takasu ,  Tadashi Kobayashi

IPC分类号： C09K19/38 ,  G02F1/1333 ,  G02F1/141 ,  G11B7/0055 ,  G11B7/24 ,  G11B7/25 ,  G11B9/02

CPC分类号： G11B7/00557 ,  C09K19/38 ,  C09K19/3852 ,  C09K19/3857 ,  G02F1/133365 ,  G02F1/141 ,  G11B7/24 ,  G11B7/25 ,  G11B9/02

摘要： An optical modulation method comprises writing in a ferroelectric having a glass transition point at or above the glass transition point, and holding the resultant written state below the glass transition point. Preferably, the ferroelectric is formed in an optical modulation layer set to have an optical thickness capable of providing a multiple reflection state. The multiple reflection state of the optical modulation layer is locally changed at or above the glass transition point by irradiating the optical modulation layer under an electric field with a laser beam to write in the optical modulation layer.