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61. 发明申请

US20110014380A1 APPARATUS AND PROCESS FOR FABRICATING ARTIFICIAL OPAL FILMS 审中-公开
标题翻译：制造人造OPAL膜的设备和工艺
公开(公告)号：US20110014380A1
公开(公告)日：2011-01-20
申请号：US12736275
申请日：2009-03-25
申请人： Hiroshi Fudoji , Tsutomu Sawada , Kenji Kitamura
发明人： Hiroshi Fudoji , Tsutomu Sawada , Kenji Kitamura
IPC分类号： B05D3/12 , B05C11/02 , B05C11/00
CPC分类号： G02B6/13 , B82Y20/00 , B82Y40/00 , G02B1/005 , G02B6/1225
摘要： The invention has for its object to provide an apparatus and process for fabricating an artificial opal film having a uniform thickness yet a large area, and provides an artificial opal film fabrication apparatus, in which a substrate (S1) coated with a suspension film (S2) having fine particles dispersed in it is located in a stage (10), and a dispersive medium of the suspension is evaporated off thereby crystallizing the fine particles to fabricate an artificial opal film, characterized by comprising a scraper (20) for adjusting the thickness of the suspension film, and a stage (10) that is movable relative thereto in a constant horizontal direction, wherein the substrate attached to that stage is positioned such that when the stage (10) moves horizontally, the thickness of the suspension film (S2) coated on that substrate (S1) and in an uncrystalliation state is controlled by the scraper (20), and crystallization by evaporation of the dispersive medium of the suspension is set off after the suspension film (S2) has passed the scraper (20). See FIG. 8.
摘要翻译：本发明的目的是提供一种制造均匀厚度大面积的人造蛋白石薄膜的装置和方法，并提供一种人造蛋白石制造装置，其中涂覆有悬浮膜（S2 ）分散在阶段（10）中，并将悬浮液的分散介质蒸发掉，从而使微细颗粒结晶以制造人造蛋白石膜，其特征在于包括用于调节厚度的刮刀（20）和能够沿恒定水平方向相对于其移动的台架（10），其中安装在该台架上的基板定位成使得当台架（10）水平移动时，悬挂膜（S2 ）并且处于非结晶状态的刮刀由刮刀（20）控制，通过蒸发悬浮液的分散介质而结晶使悬挂膜（S2）通过刮刀（20）。参见图。 8。

62. 发明授权

US07689067B2 Nested modulator 有权
标题翻译：嵌套调制器
公开(公告)号：US07689067B2
公开(公告)日：2010-03-30
申请号：US11983071
申请日：2007-11-07
申请人： Junichiro Ichikawa , Kaoru Higuma , Futoshi Yamamoto , Satoshi Oikawa , Shingo Mori , Sunao Kurimura , Kenji Kitamura , Tetsuya Kawanishi , Masahiro Tsuchiya , Masayuki Izutsu
发明人： Junichiro Ichikawa , Kaoru Higuma , Futoshi Yamamoto , Satoshi Oikawa , Shingo Mori , Sunao Kurimura , Kenji Kitamura , Tetsuya Kawanishi , Masahiro Tsuchiya , Masayuki Izutsu
IPC分类号： G02F1/035
CPC分类号： G02F1/035 , G02F2001/212 , G02F2201/18 , G02F2202/20
摘要： A nested modulator is provided where the circuit arrangement of modifying electrodes including signal electrodes is simplified, and at the same time, the drive voltage can be lowered.A nested modulator, including: a substrate 20 made of a material having electro-optic effects; an optical waveguide formed on the substrate; and a modulating electrode for modulating light waves which are guided through the optical waveguide, wherein the optical waveguide has a main Mach-Zehnder waveguide 1 and sub-Mach-Zehnder waveguides 2 and 3 provided on two branching waveguides of the main Mach-Zehnder waveguide, and the modulating electrode is provided in a sub-branching waveguide of the sub-Mach-Zehnder waveguides, is characterized in that a polarization reversal region 46 or 47 is formed in a portion of a sub-branching waveguide of each of the sub-Mach-Zehnder waveguides, the modulating electrode is formed of signal electrodes including introduced signal electrodes 40 or 43, branching single electrodes 41 or 44 and lead signal electrodes 42 or 45 as well as ground electrodes for each of sub-Mach-Zehnder waveguides, and the branching signal electrodes which branch from the introduced signal electrode are placed so as to work on two sub-branching waveguides for each of the sub-Mach-Zehnder waveguides.
摘要翻译：提供了一种嵌入式调制器，其中包括信号电极的修改电极的电路布置被简化，并且同时可以降低驱动电压。嵌套调制器，包括：由具有电光效应的材料制成的衬底20; 形成在基板上的光波导; 以及用于调制通过光波导引导的光波的调制电极，其中光波导具有设置在主马赫 - 曾德尔波导的两个分支波导上的主马赫 - 曾德尔波导1和副马赫 - 曾德尔波导2 并且所述调制电极设置在所述子马赫 - 曾德尔波导的子分支波导中，其特征在于，在每个所述子马赫 - 曾德尔波导的子分支波导的一部分中形成偏振反转区域46或47，马赫曾德尔波导，调制电极由包括引入信号电极40或43，分支单电极41或44和引导信号电极42或45以及每个子马赫 - 曾德尔波导的接地电极的信号电极形成，以及从引入的信号电极分支的分支信号电极被放置成对每个子马赫 - 曾德尔波导的两个子分支波导进行工作。

63. 发明授权

US07403327B2 Wavelength conversion element having multi-gratings and light generating apparatus using said element, and wavelength conversion element having cylindrical ferroelectric single crystals and light generating apparatus using said element 失效
标题翻译：具有多光栅的波长转换元件和使用所述元件的发光装置，以及具有圆柱形铁电单晶体的波长转换元件和使用所述元件的发光装置
公开(公告)号：US07403327B2
公开(公告)日：2008-07-22
申请号：US10575535
申请日：2004-11-19
申请人： Kenji Kitamura , Sunao Kurimura , Masaru Nakamura , Shunji Takekawa
发明人： Kenji Kitamura , Sunao Kurimura , Masaru Nakamura , Shunji Takekawa
IPC分类号： G02F1/35
CPC分类号： G02F1/37 , G02F2001/3507 , G02F2001/3548 , G02F2202/20
摘要： A wavelength conversion element having multi-gratings free from damage propagation and a light generating apparatus using it, and a wavelength conversion element having multi-gratings to make a thermal distribution centrosymmetric, and being free from damage propagation, are provided. The wavelength conversion element is realized by comprising a holder and plural prismatic ferroelectric single crystals disposed in the holder, wherein plural prismatic ferroelectric single crystals have at least five planes; the aspect ratios of planes perpendicular to respective longitudinal directions of the plural prismatic ferroelectric single crystals are virtually unity; and each of the plural prismatic ferroelectric single crystals has a domain inversion structure with a predetermined period in the direction perpendicular to the polarization direction thereof, and is arranged in a way that said direction perpendicular to the polarization direction is the same as those of the other crystals.
摘要翻译：提供了具有不受损伤传播的多光栅的波长转换元件和使用它的发光装置，以及具有多光栅以实现热分布中心对称，并且没有损伤传播的波长转换元件。波长转换元件通过包括保持器和设置在保持器中的多个棱柱铁电单晶实现，其中多个棱柱铁电单晶具有至少五个平面; 垂直于多个棱柱铁电单晶的纵向方向的平面的纵横比实际上是一致的; 并且多个棱柱铁电单晶中的每一个具有在垂直于其偏振方向的方向上具有预定周期的畴反转结构，并且以与偏振方向垂直的方向与其他方向相同的方式晶体。

64. 发明授权

US07174059B2 Optical device 有权
标题翻译：光学装置
公开(公告)号：US07174059B2
公开(公告)日：2007-02-06
申请号：US11089895
申请日：2005-03-25
申请人： Satoshi Oikawa , Junichiro Ichikawa , Futoshi Yamamoto , Sunao Kurimura , Kenji Kitamura
发明人： Satoshi Oikawa , Junichiro Ichikawa , Futoshi Yamamoto , Sunao Kurimura , Kenji Kitamura
IPC分类号： G02F1/035
CPC分类号： G02F1/035 , G02F1/0356 , G02F1/055 , G02F1/21 , G02F1/225 , G02F2201/34
摘要： The present invention provides a highly-integrated and compact optical element and further provides an optical element having various functions such as lower driving voltage, chirping suppression and polarization-independency.The optical element comprising a substrate 1 consisting of a material having an electrooptic effect, top optical waveguides 2-1 an 2-2 formed on the top face of said substrate, bottom optical waveguides formed on the bottom face of said substrate, a top modulating electrode for controlling the phase of a light wave being propagated through said top optical waveguide, and a bottom modulating electrode for controlling the phase of a light wave being propagated through said bottom optical waveguide, is characterized in that at least one side edge of said substrate comprises output and input of said optical waveguides formed on said top and bottom faces, and a turnback element is located adjacent to said one side edge to guide the light wave from said output to said input.
摘要翻译：本发明提供高度集成且紧凑的光学元件，并且还提供具有各种功能的光学元件，例如较低的驱动电压，啁啾抑制和极化独立性。该光学元件包括由具有电光效应的材料构成的衬底1，形成在所述衬底的顶面上的顶部光波导2-1和2 - 2，形成在所述衬底的底面上的底部光波导，顶部调制用于控制通过所述顶部光波导传播的光波的相位的电极和用于控制通过所述底部光波导传播的光波的相位的底部调制电极，其特征在于，所述基板的至少一个侧边缘包括形成在所述顶面和底面上的所述光波导的输出和输入，并且转向元件位于所述一个侧边缘附近，以将光波从所述输出引导到所述输入。

65. 发明申请

US20070014014A1 Optical device and method of manufacturing the same 有权
标题翻译：光学装置及其制造方法
公开(公告)号：US20070014014A1
公开(公告)日：2007-01-18
申请号：US11367261
申请日：2006-03-03
申请人： Futoshi Yamamoto , Katsutoshi Kondou , Junichiro Ichikawa , Masaru Nakamura , Sunao Kurimura , Shunji Takekawa , Kenji Kitamura
发明人： Futoshi Yamamoto , Katsutoshi Kondou , Junichiro Ichikawa , Masaru Nakamura , Sunao Kurimura , Shunji Takekawa , Kenji Kitamura
IPC分类号： G02B5/18 , G02B27/44
CPC分类号： G02B6/1342
摘要： An object of the present invention is to provide an optical device having high quality, excellent productivity and optical characteristics, and capable of suppressing a refractive index of a substrate surface from increasing when a dopant is thermally diffused into, or a heat treatment is performed in order to compensate of process distortion in stoichiometric lithium niobate crystal or a crystal substrate in which Mg is doped into the crystal, and a method of manufacturing the same. According to the present invention, there is provided a method of manufacturing an optical device including the steps of: forming a dopant layer on a substantial stoichiometric lithium niobate single crystal substrate; and diffusing a dopant in the dopant layer into at least a portion of the substantial stoichiometric lithium niobate single crystal substrate, wherein, in the diffusing step, a heat treatment is performed at a diffusion temperature of 1000° C. to 1200° C. in an atmosphere in which a gas having a dew-point temperature of 0° C. or less is introduced, preferably for a diffusion time of 3 hours or more, and more preferably 3 hours to 24 hours.
摘要翻译：本发明的目的是提供一种具有高质量，优异的生产率和光学特性的光学器件，并且能够抑制当掺杂剂热扩散时衬底表面的折射率增加，或者在为了补偿化学计量比的铌酸锂晶体或其中Mg掺杂到晶体中的晶体衬底的工艺失真及其制造方法。根据本发明，提供了一种制造光学器件的方法，包括以下步骤：在基本上化学计量的铌酸锂单晶衬底上形成掺杂剂层; 并且将掺杂剂层中的掺杂剂扩散到至少一部分实质上的化学计量的铌酸锂单晶衬底中，其中在扩散步骤中，在1000℃至1200℃的扩散温度下进行热处理引入露点温度为0℃以下的气体的气氛，优选扩散时间为3小时以上，更优选为3小时〜24小时。

66. 发明申请

US20060269184A1 Optical device 有权
标题翻译：光学装置
公开(公告)号：US20060269184A1
公开(公告)日：2006-11-30
申请号：US11500043
申请日：2006-08-07
申请人： Masayuki Ichioka , Junichiro Ichikawa , Sunao Kurimura , Kenji Kitamura
发明人： Masayuki Ichioka , Junichiro Ichikawa , Sunao Kurimura , Kenji Kitamura
IPC分类号： G02F1/035
CPC分类号： G02F1/035 , G02F1/0356 , G02F1/055 , G02F1/21 , G02F1/225 , G02F2201/34
摘要： The present invention provides a highly-integrated and compact optical element and further provides an optical element having various functions such as lower driving voltage, chirping suppression and polarization-independency. The optical element has a substrate 1 formed of a material having an electrooptic effect, a plurality of optical waveguides formed on the substrate, and a modulating electrode for applying electric field into the optical waveguides, and is characterized in that the modulating electrode has at least two branching and confluence lines on the same line for applying the same modulating signal into different optical waveguides.
摘要翻译：本发明提供高度集成且紧凑的光学元件，并且还提供具有各种功能的光学元件，例如较低的驱动电压，啁啾抑制和极化独立性。光学元件具有由具有电光效应的材料形成的基板1，形成在基板上的多个光波导和用于向光波导施加电场的调制电极，其特征在于，所述调制电极至少具有在同一条线上的两个分支和汇流线将相同的调制信号施加到不同的光波导中。

67. 发明申请

US20060079006A1 Method for forming polarization reversal 有权
标题翻译：形成极化反转的方法
公开(公告)号：US20060079006A1
公开(公告)日：2006-04-13
申请号：US11083735
申请日：2005-03-18
申请人： Futoshi Yamamoto , Junichiro Ichikawa , Satoshi Oikawa , Sunao Kurimura , Kenji Kitamura
发明人： Futoshi Yamamoto , Junichiro Ichikawa , Satoshi Oikawa , Sunao Kurimura , Kenji Kitamura
IPC分类号： H01L21/00
CPC分类号： G02F1/3558 , Y10T29/4902
摘要： The present invention provides a method for forming a ferroelectric spontaneous polarization reversal capable of forming a ferroelectric spontaneous polarization reversal condition homogeneously within the ferroelectric spontaneous polarization reversal region even across a large region of 50 μm and over in width of a ferroelectric spontaneous polarization reversal. Also, it provides a method for forming a ferroelectric spontaneous polarization reversal where a ferroelectric substrate has convexo-concave structure, such as ridge structure and the like, on its surface and the polarity of the region including one portion of said convex part is reversed with accuracy. A method for forming a ferroelectric spontaneous polarization reversal in a desired region of a ferroelectric substrate 1 has a feature that said desired region 20 of a surface of said ferroelectric substrate is sprayed with micro-hard materials, made an impact by using a striking member that has micro tip diameter, or rubbed with micro-hard materials that are dispersively located on the surface of the substrate to thereby generate nucleuses, and subsequently, a given voltage is applied into said desired region to thereby form a ferroelectric spontaneous polarization reversal in said desired region of said ferroelectric substrate. Also, a method for forming a ferroelectric spontaneous polarization reversal where a convexo-concave structure is formed on a top face of a ferroelectric substrate firstly, and then, a ferroelectric spontaneous polarization region is formed on the substrate including one portion of said convex part, has a feature that a concave portion is formed on a bottom face of the substrate within the region where a ferroelectric spontaneous polarization reversal is to be formed and at least said convex portion is formed, and then, an electric field is applied into said substrate.
摘要翻译：本发明提供一种形成铁电自发极化反转的方法，其能够在强电介质自发极化反转区域内均匀地形成强电介质自发极化反转区域，即使在铁电自发极化反转的宽度为50μm的大区域之上。此外，它提供了形成铁电自发极化反转的方法，其中铁电衬底在其表面上具有凸凹结构，例如脊结构等，并且包括所述凸部的一部分的区域的极性与准确性。在铁电基板1的所需区域中形成铁电自发极化反转的方法具有以下特征：所述强电介质基板的表面的所述期望区域20被微硬材料喷射，通过使用冲击构件具有微尖端直径，或用分散地位于衬底表面上的微硬质材料摩擦，从而产生核，随后将给定电压施加到所述期望区域中，从而在所述期望区域内形成铁电自发极化反转所述铁电衬底的区域。此外，首先在铁电体的顶面上形成凸凹结构的铁电自发极化反转的形成方法，然后在包括所述凸部的一部分的基板上形成铁电自发极化区域，具有在要形成铁电自发极化反转的区域内在基板的底面上形成凹部并且至少形成所述凸部的特征，然后将电场施加到所述基板中。

68. 发明授权

US06814800B2 Method for treating photorefractive effect of an optical device and photorefractive effect-suppressed optical frequency conversion device 有权
$Method for treating photorefractive effect of an optical device and photorefractive effect-suppressed optical frequency conversion device$
公开(公告)号：US06814800B2
公开(公告)日：2004-11-09
申请号：US10379803
申请日：2003-03-06
申请人： Kenji Kitamura , Shunji Takekawa , Masaru Nakamura , Sunao Kurimura
发明人： Kenji Kitamura , Shunji Takekawa , Masaru Nakamura , Sunao Kurimura
IPC分类号： C30B100
CPC分类号： G02F1/3525
摘要： A method for treating a photorefractive effect of an optical device, which comprises irradiating an optical device comprising a lithium niobate single crystal or a lithium tantalate single crystal with an ultraviolet light having a wavelength of at least 300 nm and at most 400 nm so as to suppress and control a photo-induced refractive index change (photorefractive effect) caused on the device.

69. 发明授权

US06670079B1 Photorefractive material 失效
$Photorefractive material$
标题翻译：光折射材料
公开(公告)号：US06670079B1
公开(公告)日：2003-12-30
申请号：US09598222
申请日：2000-06-21
申请人： Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Myeongkyu Lee , Hideki Hatano , Satoru Tanaka , Takashi Yamaji
发明人： Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Myeongkyu Lee , Hideki Hatano , Satoru Tanaka , Takashi Yamaji
IPC分类号： G03H103
CPC分类号： G11C13/045 , G03H2260/54
摘要： A photorefractive material provides a high photosensitivity without reduction. The material comprises a single crystal of terbium (Tb)-doped niobate or tantalate. The single crystal is a single crystal of lithium niobate (LiNbO3) whose molar fraction of [Li2O]/([Li2O]+[Nb2O5]) lies in a range of 0.482 to 0.505, or a single crystal of lithium tantalate (LiTaO3) whose molar fraction of [Li2O]/([Li2O]+[Ta2O5]) lies in a range of 0.482 to 0.505. The amount of terbium added in the photorefractive material ranges from 10 weight ppm to 1000 weight ppm.
摘要翻译：光折射材料提供高的光敏性而不会减少。该材料包括铽（Tb）掺杂的铌酸盐或钽酸盐的单晶。该单晶是其[Li 2 O] /（[Li 2 O] + [Nb 2 O 5]）的摩尔分数在0.482〜0.505的范围内的铌酸锂（LiNbO 3）的单晶，或者是钽酸锂（LiTaO 3）的单晶， [Li 2 O] /（[Li 2 O] + [Ta 2 O 5]）的摩尔分数在0.482〜0.505的范围内。在光折射材料中添加的铽的量为10重量ppm至1000重量ppm。

70. 发明授权

US06473208B1 Two-color holographic recording apparatus 失效
标题翻译：双色全息记录装置
公开(公告)号：US06473208B1
公开(公告)日：2002-10-29
申请号：US09598382
申请日：2000-06-21
申请人： Myeongkyu Lee , Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Yoshihisa Ito , Hideki Hatano , Satoru Tanaka
发明人： Myeongkyu Lee , Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Yoshihisa Ito , Hideki Hatano , Satoru Tanaka
IPC分类号： G03H103
CPC分类号： G03H1/0248 , G03H2001/026 , G03H2001/0268 , G11B7/0065
摘要： A two-color holographic recording apparatus reduces error signals possibly included in reproduced digital data signals. The two-color holographic recording apparatus has first, second and third light shutters for passing or blocking gate light, signal light and reference light incident on a recording medium respectively, and a controller for controlling the respective states of the first, second and third light shutters.
摘要翻译：双色全息记录装置减少可能包含在再现的数字数据信号中的误差信号。双色全息记录装置具有分别用于通过或阻挡入射在记录介质上的栅极光，信号光和参考光的第一，第二和第三光闸，以及用于控制第一，第二和第三光的各自状态的控制器百叶窗。

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