公开(公告)号：US06415072B1

公开(公告)日：2002-07-02

申请号：US09543590

申请日：2000-04-05

申请人： Naoki Hashizume ,  Hiroyuki Koshi ,  Takeshi Nakajima ,  Kanji Tanaka

发明人： Naoki Hashizume ,  Hiroyuki Koshi ,  Takeshi Nakajima ,  Kanji Tanaka

IPC分类号： G02B628

CPC分类号： G02B6/12016 ,  G02B6/30

摘要： The present invention relates to an optical wavelength multiplexing and dividing device of an array waveguide type diffraction lattice, which is capable of separating and picking up wavelength-multiplexed signals of various wavelengths, which are used in optical transmissions. An input side slab waveguide (3), a plurality of juxtaposed array waveguides (4), an output side slab waveguide (5) and a plurality of optical output waveguides (6) are connected, in order, to the outgoing sides of a plurality of optical input waveguides (2), thereby forming a waveguide pattern. The array waveguides (4) are formed so as to have lengths different from each other to cause the phases of individual lights to be deviated after propagating through the respective array type waveguides (4), wherein different lights as per wavelength are condensed at the incident ends (7) of optical output waveguides 6 by passing through the output side slab waveguides (5) and are outputted through the optical output waveguides (6). The incident ends (7a) of the optical output waveguides (6) are provided at a light condensing predicted position of lights of the respective wavelengths where the lights are predicted to be condensed through the output side slab waveguide (5), and the incident ends (7b) of the optical output waveguides (6) are provided at a light condensing prediction corrected position where the light condensing position is shifted with respect to the light condensing predicted position.

摘要翻译： 本发明涉及阵列波导型衍射光栅的光波分复用和分割装置，其能够分离和拾取在光传输中使用的各种波长的波分复用信号。 输入侧平板波导（3），多个并列阵列波导（4），输出侧平板波导（5）和多个光输出波导（6）依次连接到多个 的光输入波导（2），从而形成波导图案。 阵列波导（4）形成为具有彼此不同的长度，以使各个光的相位在通过各个阵列型波导（4）传播之后偏离，其中根据波长的不同的光在入射时被会聚 通过输出侧平板波导（5）通过光输出波导6的端部（7），并通过光输出波导（6）输出。 光输出波导（6）的入射端（7a）设置在通过输出侧平板波导（5）预测光被冷凝的各波长的光的聚光预测位置，入射端 光输出波导（6）的光（7b）设置在聚光预测校正位置，其中聚光位置相对于聚光预测位置偏移。

公开(公告)号：US06195481B1

公开(公告)日：2001-02-27

申请号：US09509832

申请日：2000-04-21

申请人： Takeshi Nakajima ,  Hiroyuki Koshi ,  Naoki Hashizume

发明人： Takeshi Nakajima ,  Hiroyuki Koshi ,  Naoki Hashizume

IPC分类号： G02B636

CPC分类号： G02B6/12016 ,  G02B6/125 ,  G02B2006/1215

摘要： An arrayed waveguide grating type optical multiplexer/demultiplexer includes input waveguides, an input-side slab waveguide, an arrayed waveguide diffraction grating, an output-side slab waveguide, and output waveguides. A junction between each input waveguide and the input-side slab waveguide is tapered such that the end portion of the input waveguide gradually widens in the width direction of the path toward the input-side slab waveguide, and includes two separate small-width waveguide portions arranged separately from the end portion of the input waveguide and extending in a line with taper of the tapered end portion, and a single large-width waveguide portion arranged separately from the small-width waveguide portions.

摘要翻译： 阵列波导光栅类型的光信号多路复用器/解复用器包括输入波导，输入侧平板波导，阵列波导衍射光栅，输出侧平板波导和输出波导。 每个输入波导和输入侧平板波导之间的结点是锥形的，使得输入波导的端部在朝向输入侧平板波导的路径的宽度方向上逐渐变宽，并且包括两个单独的小宽度波导部分 与输入波导的端部分开设置，并且以锥形端部的锥形成一条直线延伸，以及与小宽度波导部分分开配置的单个大宽度波导部。

公开(公告)号：US06393170B1

公开(公告)日：2002-05-21

申请号：US09582084

申请日：2000-06-22

申请人： Takeshi Nakajima ,  Naoki Hashizume ,  Kanji Tanaka

发明人： Takeshi Nakajima ,  Naoki Hashizume ,  Kanji Tanaka

IPC分类号： G02B612

CPC分类号： G02B6/12016

摘要： An optical multiplexer/demultiplexer 1 having a plurality of first waveguides 3, a first slab waveguide 4, an arrayed waveguide grating 5 having a plurality of waveguides, a second slab waveguide 6 and a plurality of second waveguides 7, the individual waveguides being connected in the above order. The ratio of a distance between the plurality of first waveguides 3 at a connecting portion with the first slab waveguide 4 to a distance between the plurality of second waveguides 7 at a connecting portion with the second slab waveguide 6 differs from a ratio of a focal length of the first slab waveguide 4 to a focal length of the second slab waveguide 6.

摘要翻译： 具有多个第一波导3，第一平板波导4，具有多个波导的阵列波导光栅5，第二平板波导6和多个第二波导7的光复用器/解复用器1，各个波导连接在 以上订单。 在与第一平板波导4的连接部分处的多个第一波导3之间的距离与在与第二平板波导6的连接部分处的多个第二波导7之间的距离的比率与焦距 的第一平板波导4的第二平板波导6的焦距。

公开(公告)号：US06539158B2

公开(公告)日：2003-03-25

申请号：US09778814

申请日：2001-02-08

申请人： Kazuhisa Kashihara ,  Kazutaka Nara ,  Hiroyuki Koshi ,  Takeshi Nakajima

发明人： Kazuhisa Kashihara ,  Kazutaka Nara ,  Hiroyuki Koshi ,  Takeshi Nakajima

IPC分类号： G02B610

CPC分类号： G02B6/12023 ,  G02B6/105 ,  G02B6/1203 ,  G02B6/132

摘要： An optical waveguide circuit capable of controlling polarization crosstalk is provided. An under cladding is formed on a silicon substrate (11). A core is formed on the under cladding and has a waveguide structure in which one or more optical input waveguides (12) arranged side by side are connected at their exit ends with a first slab guide (13), which is connected at its exit end with an arrayed waveguide (14) composed of plural channel waveguides (14a) that are different in length with the difference preset, and the arrayed waveguide (14) is connected at its exit end with a second slab waveguide (15), which is connected at its exit end with a plurality of optical output waveguides (16). The top of the core is covered with an over cladding to form an optical waveguide portion (10) composed of the under and over claddings and the core. A plurality of light beams having different wavelengths are entered to the core in the multiplexed manner, and the entered light beams are outputted separately on the basis of the wavelength. The claddings and the core are formed from silica glass. The birefringence B in the optical waveguide portion (10) is set so as to satisfy |B|≧1.2×10−4 to reduce polarization crosstalk to −20 dB or less.

摘要翻译： 提供了能够控制偏振串扰的光波导电路。 在硅衬底（11）上形成下包层。 在下包层上形成有芯，并且具有波导结构，其中并排布置的一个或多个光输入波导（12）在其出口端处连接有第一板引导件（13），其在其出口端连接 具有由多个不同长度与差异预定的多个通道波导（14a）组成的阵列波导（14），并且阵列波导（14）的出口端与第二平板波导（15）连接，第二平板波导（15）被连接 在其出口端具有多个光输出波导（16）。 芯的顶部覆盖有外包层，以形成由下包层和芯层组成的光波导部分（10）。 具有不同波长的多个光束以复用方式输入到核心，并且基于波长分离地输入输入的光束。 包层和芯由石英玻璃形成。 光波导部分（10）中的双折射B被设定为满足| B |> = 1.2×10 -4，以将极化串扰降低到-20dB或更小。

公开(公告)号：US06404946B1

公开(公告)日：2002-06-11

申请号：US09635492

申请日：2000-08-09

申请人： Takeshi Nakajima ,  Kanji Tanaka ,  Toshihiko Ohta ,  Shiro Nakamura

发明人： Takeshi Nakajima ,  Kanji Tanaka ,  Toshihiko Ohta ,  Shiro Nakamura

IPC分类号： G02B628

CPC分类号： G02B6/12016

摘要： An arrayed waveguide grating type optical multiplexer/demultiplexer including an arrayed waveguide grating having a plurality of channel waveguides. Concave end faces of input-side and output-side slab waveguides are connected to opposite ends of the diffraction grating. At least one input waveguide and at least one output waveguide are connected to the other concave end faces of the input-side and output-side slab waveguides, respectively. The focal length of the output-side slab waveguide end face is longer than the focal length of the input-side slab waveguide end face. The optical multiplexer/demultiplexer has a sufficiently flat wavelength-dependent spectrum response in passing channel spacings, and helps construct an optical wavelength multiple communication system having a good signal-to-noise ratio.

摘要翻译： 包括具有多个通道波导的阵列波导光栅的阵列波导光栅型光信号多路复用器/解复用器。 输入侧和输出侧平板波导的凹面连接到衍射光栅的相对端。 至少一个输入波导和至少一个输出波导分别连接到输入侧和输出侧平板波导的其它凹端面。 输出侧平板波导端面的焦距比输入侧平板波导端面的焦距长。 光复用器/解复用器在通过信道间隔中具有足够平坦的波长依赖的频谱响应，并且有助于构建具有良好信噪比的光波长多通信系统。

公开(公告)号：US06418249B1

公开(公告)日：2002-07-09

申请号：US09581523

申请日：2000-07-06

申请人： Shiro Nakamura ,  Takeshi Nakajima ,  Kanji Tanaka

发明人： Shiro Nakamura ,  Takeshi Nakajima ,  Kanji Tanaka

IPC分类号： G02B628

CPC分类号： G02B6/12014

摘要： An optical multiplexer/demultiplexer including an arrayed waveguide grating having a plurality of waveguides and formed at its both end with an input-side slab waveguide and an output-side slab waveguide. A reference input waveguide and correction input waveguides are provided on the input end face of the input-side slab waveguide and a plurality of output waveguides are connected to the output end face of the output-side slab waveguide. The correction input waveguide has an output end face thereof placed apart by a distance from the input end face of the input-side slab waveguide in the lengthwise direction of the slab waveguide and has an acute angle to a plane perpendicular to the optical axis of this waveguide, thus permitting an optical signal to be input at a position apart from a light-incident position for the reference input waveguide by a distance shorter than a waveguide disposition interval, thereby optimally correcting a deviation of the center wavelength of the optical signal.

摘要翻译： 一种光复用器/解复用器，包括具有多个波导的阵列波导光栅，并在其两端形成有输入侧平板波导和输出侧平板波导。 参考输入波导和校正输入波导设置在输入侧平板波导的输入端面上，并且多个输出波导连接到输出侧平板波导的输出端面。 校正输入波导的输出端面在平板波导的长度方向上与输入侧平板波导的输入端面隔开一段距离，并且与垂直于该波导的光轴的平面成锐角 波导，从而允许光信号在距参考输入波导的光入射位置远离波导配置间隔的距离处被输入，从而最佳地校正光信号的中心波长的偏差。

公开(公告)号：US09605116B2

公开(公告)日：2017-03-28

申请号：US13877787

申请日：2011-10-07

申请人： Masamichi Hikosaka ,  Kiyoka Okada ,  Junichiro Washiyama ,  Takeshi Nakajima ,  Yuka Akiyama ,  Shingo Ueno

发明人： Masamichi Hikosaka ,  Kiyoka Okada ,  Junichiro Washiyama ,  Takeshi Nakajima ,  Yuka Akiyama ,  Shingo Ueno

IPC分类号： B29C43/52 ,  B29C67/24 ,  C08J5/00 ,  B29C43/22 ,  B32B27/08 ,  C08F10/02 ,  C08F10/06 ,  B29C43/00 ,  B29C43/24 ,  B29C43/46

CPC分类号： C08J5/00 ,  B29C43/003 ,  B29C43/222 ,  B29C43/24 ,  B29C43/46 ,  B29C43/52 ,  B32B27/08 ,  C08F10/02 ,  C08F10/06 ,  Y10T428/31913

摘要： A method for secondary-molding a polymer nano oriented crystal material in accordance with an embodiment of the present invention includes the steps of: heating the polymer nano oriented crystal material so that the polymer nano oriented crystal material changes into a mobile phase or a melt having a dense entanglement network structure; molding the polymer nano oriented crystal material which changed into the mobile phase or the melt including the dense entanglement network in the step; and cooling the polymer nano oriented crystal material, which has undergone the step, until the polymer nano oriented crystal material changes into an ordered phase.

公开(公告)号：US08728616B2

公开(公告)日：2014-05-20

申请号：US13138212

申请日：2010-01-21

申请人： Masamichi Hikosaka ,  Kiyoka Okada ,  Kaori Watanabe ,  Junichiro Washiyama ,  Hideharu Kimura ,  Koji Yamada ,  Takeshi Nakajima ,  Akihiro Otsubo

发明人： Masamichi Hikosaka ,  Kiyoka Okada ,  Kaori Watanabe ,  Junichiro Washiyama ,  Hideharu Kimura ,  Koji Yamada ,  Takeshi Nakajima ,  Akihiro Otsubo

IPC分类号： C08F110/00 ,  C08F110/06 ,  C08F6/26

CPC分类号： B29C47/14 ,  B29C47/0004 ,  B29C47/0019 ,  B29C47/0021 ,  B29C47/8845 ,  B29C47/8895 ,  B29K2023/12 ,  B29K2105/162 ,  B29K2105/256 ,  B29K2995/0017 ,  B29K2995/0026 ,  B29K2995/0077 ,  C08J5/18 ,  C08J2323/12 ,  Y10T428/254 ,  Y10T428/31855

摘要： A polymer sheet according to at least one embodiment of the present invention is a polymer sheet whose main component is oriented nanocrystals of a polymer, and which satisfies the following conditions (I), (II), and (III): (I) having a crystallinity of not less than 70%; (II) having a tensile strength at break of not less than 100 MPa and a tensile modulus of not less than 3 GPa; and (III) having an average thickness of not less than 0.15 mm. According to at least one embodiment of the present invention, it is possible to provide a polymer sheet excelling in properties such as mechanical strength, heat tolerance, and transparency, particularly a polymer sheet having excellent properties such as mechanical strength, heat tolerance, and transparency in general-purpose plastics such as polypropylene.

摘要翻译： 根据本发明的至少一个实施方式的聚合物片是其主要成分为聚合物的取向纳米晶体的聚合物片材，其满足以下条件（I），（II）和（III）：（I）具有 结晶度不低于70％; （II），断裂拉伸强度为100MPa以上，拉伸弹性模量不小于3GPa; 和（III）的平均厚度不小于0.15mm。 根据本发明的至少一个实施方案，可以提供具有机械强度，耐热性和透明性等特性优异的聚合物片材，特别是具有优异性能例如机械强度，耐热性和透明性的聚合物片材 在通用塑料如聚丙烯中。

公开(公告)号：US08567281B2

公开(公告)日：2013-10-29

申请号：US13418061

申请日：2012-03-12

申请人： Takeshi Nakajima

发明人： Takeshi Nakajima

IPC分类号： B25J18/00 ,  H01F21/06 ,  H04B5/00

CPC分类号： B25J19/0029 ,  B25J19/0041 ,  B25J19/0045 ,  Y10T74/20305 ,  Y10T74/20311

摘要： A rotating device includes a communication unit including a transmitting portion having a first ring-shaped coil, a first ring-shaped magnetic body covering the first ring-shaped coil and a first terminal connected to the first ring-shaped coil, and a receiving portion having a second ring-shaped coil, a second ring-shaped magnetic body covering the second ring-shaped coil and a second terminal connected to the second ring-shaped coil, and a bearing connecting a hollow fixed portion to a hollow rotating portion.

摘要翻译： 旋转装置包括：通信单元，包括具有第一环形线圈的传输部分，覆盖第一环形线圈的第一环形磁体和连接到第一环形线圈的第一端子;以及接收部分 具有第二环形线圈，覆盖第二环形线圈的第二环形磁体和连接到第二环形线圈的第二端子，以及将中空固定部分连接到中空旋转部分的轴承。

公开(公告)号：US08495802B2

公开(公告)日：2013-07-30

申请号：US12385882

申请日：2009-04-22

申请人： Shigeo Okada ,  Takeshi Nakajima

发明人： Shigeo Okada ,  Takeshi Nakajima

IPC分类号： F16B21/00 ,  F16B5/06

CPC分类号： B60R13/0206 ,  F16B21/086 ,  Y10T24/309 ,  Y10T24/42 ,  Y10T24/44026 ,  Y10T24/45105

摘要： According to an aspect of the present invention, there is provided a clip including: a flange to be abutting a panel having an attaching hole; and a leg portion to be inserted into the attaching hole. The leg portion includes: an engaging part; and a guide part connected thereto. The guide part include: a distal-end tapered part formed to be gradually reduced in an outer diameter toward an inserting direction of the leg portion; a base-end reversely tapered part formed to be gradually reduced in an outer diameter toward the opposite direction; and a diameter enlarged part formed therebetween to have an outer diameter largest among the guide part. The largest outer diameter of the diameter enlarged part is larger than that of a distal end part of the engaging part.