公开(公告)号：US4834509A

公开(公告)日：1989-05-30

申请号：US133641

申请日：1987-12-16

申请人： Tomoki Gunjima ,  Hiroshi Kumai ,  Shoichi Tsuchiya ,  Kaoriko Masuda

发明人： Tomoki Gunjima ,  Hiroshi Kumai ,  Shoichi Tsuchiya ,  Kaoriko Masuda

IPC分类号： C09K19/54 ,  G02F1/1334

CPC分类号： C09K19/544 ,  C09K2019/546 ,  G02F2001/13347 ,  Y10T428/1077

摘要： A liquid crystal optical device comprising a pair of substrates provided with electrodes and a layer containing a liquid crystal material sandwiched between the pair of substrates, wherein said layer is formed by irradiating light to a solution of a nematic liquid crystal material and a photo-curable vinyl compound selected so that the refractive index of the resulting cured product agrees to either the ordinary refractive index (n.sub.o) or the extraordinary refractive index (n.sub.e) of the nematic liquid crystal material used, or the refractive index (n.sub.x) of the nematic liquid crystal material when it is randomly oriented, held between the pair of substrates provided with electrodes, to cure the photo-curable vinyl compound and fix the resulting phase separation of the nematic liquid crystal material and the cured product.

公开(公告)号：US4818070A

公开(公告)日：1989-04-04

申请号：US144171

申请日：1988-01-15

申请人： Tomoki Gunjima ,  Hiroshi Kumai ,  Minoru Akatsuka ,  Shoichi Tsuchiya

发明人： Tomoki Gunjima ,  Hiroshi Kumai ,  Minoru Akatsuka ,  Shoichi Tsuchiya

IPC分类号： C09K19/54 ,  G02F1/1333 ,  G02F1/1334 ,  G03F7/00 ,  G02F1/13

CPC分类号： C09K19/544 ,  G02F1/1334 ,  G03F7/001 ,  G02F2001/133374 ,  G02F2001/13345 ,  G02F2001/13347 ,  Y10S359/90

摘要： A liquid crystal optical device comprising a pair of substrates provided with electrodes and a layer containing a liquid crystal material sandwiched between the pair of substrates, wherein said layer is formed by irradiating light to a mixture of a liquid crystal material and a photo-curable compound selected so that the refractive index of the resulting cured product agrees to either the ordinary refractive index (n.sub.O) or the extraordinary refractive index (n.sub.e) of the liquid crystal material used, or the refractive index (n.sub.x) of the liquid crystal material when it is randomly oriented, held between the pair of substrates provided with electrodes, to cure the photo-curable compound and fix the resulting phase separation of the liquid crystal material and the cured product, wherein said layer has at least a portion optically oriented by applying a voltage to the portion across the substrates during the irradiation of light to cure the photo-curable compound.

公开(公告)号：US5103327A

公开(公告)日：1992-04-07

申请号：US736382

申请日：1991-07-26

申请人： Yoshinori Hirai ,  Tomoki Gunjima ,  Satoshi Niiyama ,  Hiroshi Kumai

发明人： Yoshinori Hirai ,  Tomoki Gunjima ,  Satoshi Niiyama ,  Hiroshi Kumai

IPC分类号： C09K19/54 ,  G02F1/1334 ,  H04N9/31

CPC分类号： H04N9/3105 ,  C09K19/544 ,  G02F1/1334

摘要： An active matrix liquid crystal display element comprises an active matrix substrate having an active element for each electrode for picture element, a counter electrode substrate provided with a counter electrode and a liquid crystal polymer composite material in which a nematic liquid crystal having a positive dielectric anisotropy is dispersed and held in a polymer matrix, said liquid crystal polymer composite material being held between the active matrix substrate and a counter electrode substrate, and the refractive index of the polymer matrix substantially agreeing with the ordinary refractive index (n.sub.0) of the liquid crystal used, wherein the refractive index anisotropy .DELTA.n of the nematic liquid crystal used is 0.18 or higher, and the average particle diameter R(.mu.m) of the liquid crystal dispersed and held in the polymer matrix, and the specific dielectric anisotropy .DELTA..epsilon., the elastic constant K33(10.sup.-12 N) and the viscosity (cSt) of the liquid crystal satisfy the following relations:.DELTA.n.sup.2 .DELTA..epsilon./(K33.multidot..eta.)>0.0011(1)and5(K33/.eta.).sup.0.5 >R>(K33/.DELTA..epsilon.).sup.0.05 (2)

公开(公告)号：US5235445A

公开(公告)日：1993-08-10

申请号：US869961

申请日：1992-04-17

申请人： Yoshinori Hirai ,  Satoshi Niiyama ,  Hiroshi Kumai ,  Tomoki Gunjima

发明人： Yoshinori Hirai ,  Satoshi Niiyama ,  Hiroshi Kumai ,  Tomoki Gunjima

IPC分类号： C09K19/54 ,  G02F1/1334 ,  G02F1/1362

CPC分类号： G02F1/1334 ,  C09K19/544 ,  G02F1/1362 ,  G02F2202/023 ,  G02F2203/30

摘要： A liquid crystal optical element comprises a pair of substrates with electrodes and a liquid crystal and polymer composite material, which is interposed between the pair of substrates, in which liquid crystal is dispersed and held in a polymer matrix so that the refractive index of the polymer matrix substantially coincides with the refractive index of the liquid crystal used in either state of applying a voltage or without applying voltage, and the refractive indices don't coincide with each other in the other state, wherein the elastic modulus of the polymer material which forms the polymer matrix is 3.times.10.sup.7 N/m.sup.2 or less at 20.degree. C. and 1.times.10.sup.3 N/m.sup.2 or more at 40.degree. C.

公开(公告)号：US5162934A

公开(公告)日：1992-11-10

申请号：US854762

申请日：1992-03-20

申请人： Tomoki Gunjima ,  Hiroshi Kumai ,  Satoshi Niiyama

发明人： Tomoki Gunjima ,  Hiroshi Kumai ,  Satoshi Niiyama

IPC分类号： G02F1/13

CPC分类号： G02F1/13

摘要： A method of manufacturing a liquid crystal display element comprising a pair of substrates and a liquid crystal composition injected into and cured in an evacuated cell constituted with the substrates, wherein the degree of vacuum in the cell is from 0.5 to 10 mmHg, the composition forms a liquid crystal and polymer composite in which the nematic liquid crystal is dispersed and held in the resin matrix, and light transparent-scattering states are attained by agreement and disagreement between the refraction index of the liquid crystal and the refractive index of the resin matrix under control of an electric field applied across the electrodes. Residual bubbles left in the cell are disposed in the peripheral portion not constituting the display portion or in the pocket portion formed integrally to the peripheral portion.

摘要翻译： 一种制造液晶显示元件的方法，该液晶显示元件包括一对基板和注入到由该基板构成的真空室中固化并固化的液晶组合物，其中该电池的真空度为0.5至10mmHg，该组合物形式 液晶和聚合物复合物，其中向列型液晶分散并保持在树脂基质中，透光散射状态通过液晶的折射率与树脂基体的折射率之间的一致和不一致来实现， 控制施加在电极两端的电场。 留在单元中的剩余气泡设置在不构成显示部分的周边部分中或在与周边部分一体形成的凹部中。

公开(公告)号：US20060239171A1

公开(公告)日：2006-10-26

申请号：US11474435

申请日：2006-06-26

申请人： Yoshiharu Ooi ,  Hiromasa Sato ,  Tomoki Gunjima

发明人： Yoshiharu Ooi ,  Hiromasa Sato ,  Tomoki Gunjima

IPC分类号： G11B7/135

CPC分类号： G11B7/1353 ,  G02B5/18 ,  G02B5/30 ,  G03H1/0248 ,  G03H2222/31 ,  G11B7/1275

摘要： A polarizing diffraction element having a wavelength selectivity which functions as a polarizing diffraction element at a wavelength λ1, and which does not function as a diffraction grating not depending on incident polarization state and shows high transmittance at a wavelength λ2, and an optical head device employing the element, are provided. The polarizing diffraction element selectively diffracts or transmits incident light having two different wavelengths each containing a first circularly polarized light and a second circularly polarized light having a rotation opposite from the rotation of the first circularly polarized light, depending on wavelength and polarization state of the incident light. Then, a reflective wavelength region for at least the first circularly incident light, does not contain said two incident wavelengths.

摘要翻译： 具有波长选择性的偏振衍射元件，该波长选择性用作波长λ1的偏振衍射元件，并且不用作不依赖于入射偏振状态的衍射光栅，并且在波长处表现出高的透射率 λ2＆gt;和采用该元件的光学头装置。 偏振衍射元件选择性地衍射或透射具有两个不同波长的入射光，每个入射光包含第一圆偏振光和具有与第一圆偏振光的旋转相反的旋转的第二圆偏振光，这取决于事件的波长和偏振状态 光。 然后，至少第一圆形入射光的反射波长区域不包含所述两个入射波长。

公开(公告)号：US06562259B1

公开(公告)日：2003-05-13

申请号：US09720820

申请日：2001-01-12

申请人： Tomoki Gunjima ,  Mitsuru Kurosawa ,  Kouichi Murata

发明人： Tomoki Gunjima ,  Mitsuru Kurosawa ,  Kouichi Murata

IPC分类号： C09K1912

CPC分类号： C09K19/2007 ,  C07C69/96 ,  C08F20/30 ,  C09K19/12 ,  C09K19/3852 ,  C09K2019/0448 ,  G02B5/3016

摘要： The present invention provides a photopolymerizable liquid crystal monomer having high durability, a low melting point and an enantiotropic property. The photopolymerizable liquid crystal monomer is a 4-(4-(alkyloxycarbonyloxy)benzoyloxy)phenyl acrylate represented by the following formula A [wherein Ph is a 1,4-phenylene group, and R is an alkyl group]: CH2═CHCOO—Ph—OCO—Ph—OCOO—R  Formula A Further, the present invention provides a polymer liquid crystal obtained by polymerizing a composition containing the monomer. Further, the present invention provides an optical element employing the polymer liquid crystal, and an optical head employing the optical element as a polarizing hologram element.

摘要翻译： 本发明提供具有高耐久性，低熔点和对映性的光聚合性液晶单体。光聚合性液晶单体是由下式A表示的4-（4-（4-（烷氧基羰氧基）苯甲酰氧基）苯基丙烯酸酯[其中Ph 是1,4-亚苯基，R是烷基]。此外，本发明提供通过聚合含有单体的组合物获得的聚合物液晶。此外，本发明提供一种使用聚合物液晶的光学元件 以及使用光学元件作为偏光全息元件的光学头。

公开(公告)号：US5379137A

公开(公告)日：1995-01-03

申请号：US108009

申请日：1993-08-18

申请人： Yoshinori Hirai ,  Satoshi Niiyama ,  Tomoki Gunjima

发明人： Yoshinori Hirai ,  Satoshi Niiyama ,  Tomoki Gunjima

IPC分类号： G02F1/1334 ,  G02F1/13 ,  G02F1/137

CPC分类号： G02F1/1334

摘要： A liquid crystal display element comprises a pair of substrates provided with electrodes and a liquid crystal and solidified matrix composite material, disposed between the pair of substrates, which includes a nematic liquid crystal dispersed and held in a solidified matrix, the nematic liquid crystal being such that the refractive index of the liquid crystal is changed depending on states of applying a voltage wherein in a state, the refractive index of the liquid crystal substantially coincides with that of the solidified matrix to thereby pass light, and in the other state, the former does not coincide with the latter to thereby cause the scattering of light, wherein the refractive index anisotropy .DELTA.n of the liquid crystal used is 0.18 or higher, and the dielectric anisotropy .DELTA..epsilon..sub.LC of the liquid crystal used satisfies the relation of 5

公开(公告)号：US3947351A

公开(公告)日：1976-03-30

申请号：US363494

申请日：1973-05-24

申请人： Tatsuro Asawa ,  Tomoki Gunjima

发明人： Tatsuro Asawa ,  Tomoki Gunjima

IPC分类号： B01D67/00 ,  B01D69/14 ,  C08F255/02 ,  C08F259/02 ,  C08F259/04 ,  C08J5/22 ,  C02B1/56 ,  B01D13/00

CPC分类号： B01D67/0006 ,  B01D61/243 ,  B01D67/0093 ,  B01D69/141 ,  C08F255/02 ,  C08F259/02 ,  C08J5/2287 ,  B01D2323/30 ,  C08J2327/06

摘要： An acid diffusion-dialysis membrane, which can be used for separating an acid from a mixture of an acid and a salt, or a mixture of an acid and a water-soluble organic compound, e.g., glucose, by non-electrolytic dialysis, is prepared by forming a film from the combination of (I) a vinyl group containing benzene monomer or a vinyl group containing pyridine monomer, (II) a non-conjugated divinyl-containing monomer, and (III) a thermoplastic polymer which is swellable or soluble in the monomer mixture, polymerizing said monomer mixture in the film, and then introducing anion exchange groups into the resulting polymerized product. The acid diffusion-dialysis membrane is characterized by a high acid diffusion-dialysis coefficient and a high acid-salt selectivity ratio, and further by a relatively high mechanical strength.

摘要翻译： 可用于通过非电解透析从酸和盐的混合物中分离酸或酸和水溶性有机化合物（例如葡萄糖）的混合物的酸扩散透析膜是 通过由（I）含苯乙烯基的单体或含有乙烯基的吡啶单体，（II）非共轭二乙烯基单体组成的（I）和（III）可溶胀或可溶的热塑性聚合物 在单体混合物中，在膜中聚合所述单体混合物，然后将阴离子交换基团引入所得的聚合产物中。 酸扩散透析膜的特征在于具有高的酸扩散透析系数和高的酸 - 盐选择比，并且还具有较高的机械强度。

公开(公告)号：US06304312B1

公开(公告)日：2001-10-16

申请号：US09101776

申请日：1998-07-22

申请人： Yuzuru Tanabe ,  Tomoki Gunjima ,  Hiromasa Sato ,  Hiroki Hotaka

发明人： Yuzuru Tanabe ,  Tomoki Gunjima ,  Hiromasa Sato ,  Hiroki Hotaka

IPC分类号： G02F113

CPC分类号： G11B7/1353 ,  G02B5/1833 ,  G02F1/133365 ,  G02F1/292 ,  G02F2001/133757 ,  G11B7/22

摘要： As an optically anisotropic diffraction grating in an optical head for reading and/or writing of an optically recording medium, optically anisotropic diffraction grating which comprises an optically anisotropic polymer liquid crystal sandwiched between two transparent substrates are used. The optically anisotropic polymer liquid crystal can have an alignment direction periodically changed to form a grating of different refractive indices, obtaining a high-utilization efficiency by light ray and a high degree of reliability.

摘要翻译： 作为用于读取和/或写入光学记录介质的光学头中的光学各向异性衍射光栅，使用包含夹在两个透明基板之间的光学各向异性聚合物液晶的光学各向异性衍射光栅。 光学各向异性聚合物液晶可以具有周期性地改变的取向方向以形成不同折射率的光栅，通过光线获得高利用效率和高可靠性。