公开(公告)号：US20090196560A1

公开(公告)日：2009-08-06

申请号：US12439376

申请日：2008-03-14

申请人： Kenji Okada ,  Junichi Takahashi

发明人： Kenji Okada ,  Junichi Takahashi

IPC分类号： G02B6/036

CPC分类号： G02B6/02033 ,  G02B6/03605 ,  G02B6/03627 ,  G02B6/03633

摘要： A polymer clad optical fiber is provided in which, if the diameter of an inner core is taken as a1, and the diameter of an outer core is taken as a2, and if a ratio X (which=a22/a12) between a cross-sectional area of the inner core and a cross-sectional area of the outer core is within a range of 1.8≦X≦2.2, and if a relative refractive index difference between the inner core and the outer core is taken as Δ1, and if a relative refractive index difference between the outer core and a cladding is taken as Δ2, then for a parameter Y which is defined as Y=Δ1/Δ2, when a high temperature is taken as Ymax and a low temperature is taken as Ymin, a relationship is established in which, when X is within a range of 1.8≦X≦2.0, then 0.25≦Ymin≦0.84X−0.68, and Ymax is 0.25≦Ymax≦0.84X−0.68, and, when X is within a range of 2.0≦X≦2.2, Ymin is 0.48X−0.71≦Ymin≦−2/9X+13/9, and Ymax is 0.48X−0.71≦Ymax≦−2/9X+13/9.

摘要翻译： 提供一种聚合物包覆光纤，其中如果将内芯的直径取为a1，将外芯的直径作为a2，并且如果将内芯的直径作为a的比例X（= a22 / a12） 内芯的截面面积和外芯的横截面面积在1.8 <= X <= 2.2的范围内，并且如果将内芯和外芯之间的相对折射率差作为Delta1，并且 如果将外芯和包层之间的相对折射率差作为Δ2，则对于定义为Y = Delta1 / Delta2的参数Y，当将高温作为Ymax，将低温作为Ymin时， 建立了当X在1.8 <= X <= 2.0的范围内时，0.25 <= Ymin <= 0.84X-0.68，Ymax为0.25 <= Ymax <= 0.84×-0.68的关系， 当X在2.0 <= X <= 2.2的范围内时，Ymin为0.48X-0.71 <= Ymin <= - 2 / 9X + 13/9，Ymax为0.48X-0.71 <= Ymax <= -2 / 9X + 13/9。

公开(公告)号：US07680390B2

公开(公告)日：2010-03-16

申请号：US12439376

申请日：2008-03-14

申请人： Kenji Okada ,  Junichi Takahashi

发明人： Kenji Okada ,  Junichi Takahashi

IPC分类号： G02B6/00 ,  G02B6/036

CPC分类号： G02B6/02033 ,  G02B6/03605 ,  G02B6/03627 ,  G02B6/03633

摘要： A polymer clad optical fiber is provided in which, if the diameter of an inner core is taken as a1, and the diameter of an outer core is taken as a2, and if a ratio X (which=a22/a12) between a cross-sectional area of the inner core and a cross-sectional area of the outer core is within a range of 1.8≦X≦2.2, and if a relative refractive index difference between the inner core and the outer core is taken as Δ1, and if a relative refractive index difference between the outer core and a cladding is taken as Δ2, then for a parameter Y which is defined as Y=Δ1/Δ2, when a high temperature is taken as Ymax and a low temperature is taken as Ymin, a relationship is established in which, when X is within a range of 1.8≦X≦2.0, then 0.25≦Ymin≦0.84X−0.68, and Ymax is 0.25≦Ymax≦0.84X−0.68, and, when X is within a range of 2.0≦X≦2.2, Ymin is 0.48X−0.71≦Ymin≦−2/9X+13/9, and Ymax is 0.48X−0.71≦Ymax≦−2/9X+13/9.

摘要翻译： 提供一种聚合物包覆光纤，其中如果将内芯的直径取为a1，将外芯的直径作为a2，并且如果将内芯的直径作为a的比例X（= a22 / a12） 内芯的截面面积和外芯的横截面面积在1.8＆lt; NlE; X＆lt; lE; 2.2的范围内，并且如果将内芯和外芯之间的相对折射率差作为＆Dgr; 1， 并且如果将外芯和包层之间的相对折射率差作为＆Dgr; 2，则对于被定义为Y =＆Dgr; 1 /＆Dgr; 2的参数Y，当将高温作为Ymax和 将低温作为Ymin，建立X为1.8＆nlE; X＆nlE; 2.0，则为0.25＆nlE; Ymin＆nlE; 0.84X-0.68，Ymax为0.25＆nlE; Ymax＆nlE; 0.84X- 0.68，并且当X在2.0＆amp; NlE的范围内时，X＆lt; ll; 2.2，Ymin分别为0.48X-0.71＆lt; Ymin＆nlE; -2 / 9X + 13/9，Ymax为0.48X-0.71＆NlE; Ymax＆ / 9X + 13/9。

公开(公告)号：US08341979B2

公开(公告)日：2013-01-01

申请号：US12474689

申请日：2009-05-29

申请人： Kenji Okada

发明人： Kenji Okada

IPC分类号： C03B37/023

CPC分类号： C03B37/01446

摘要： A method of producing an optical fiber preform by heating a glass preform that has a glass rod and a silica glass porous body and includes a valid portion and invalid portions, comprising: heating the glass preform while moving the glass preform along its axial direction relative to a heater; stopping the relative movement or decreasing a speed of the relative movement when an invalid portion positioned at a tail end reaches a vicinity of the heater; heating the invalid portion for a predetermined time while maintaining a temperature at which the silica glass porous body can be vitrified; decreasing the heating temperature to a temperature determined by adding 200° C. to an annealing point of a silica glass; and removing the glass preform to the outside of the heating furnace without increasing the heating temperature to the temperature at which the silica glass porous body is vitrified.

摘要翻译： 一种通过加热具有玻璃棒和石英玻璃多孔体并具有有效部分和无效部分的玻璃预制棒来制造光纤预制件的方法，包括：在相对于 加热器 当位于尾端的无效部分到达加热器附近时，停止相对运动或减小相对运动的速度; 在保持石英玻璃多孔体可以玻璃化的温度的同时加热无效部分一段预定时间; 将加热温度降低至通过将二氧化硅玻璃的退火点加入200℃而确定的温度; 并且将玻璃预制件移至加热炉的外部，而不将加热温度升高到石英玻璃多孔体被玻璃化的温度。

公开(公告)号：US07620740B2

公开(公告)日：2009-11-17

申请号：US11084693

申请日：2005-03-18

申请人： Makoto Takase ,  Kohji Takasaki ,  Minoru Hashimoto ,  Kenji Okada ,  Hiroshi Oshikawa ,  Yasuhiro Kotani ,  Satoshi Yamamoto ,  Keishi Takahashi

发明人： Makoto Takase ,  Kohji Takasaki ,  Minoru Hashimoto ,  Kenji Okada ,  Hiroshi Oshikawa ,  Yasuhiro Kotani ,  Satoshi Yamamoto ,  Keishi Takahashi

IPC分类号： G06F17/00

CPC分类号： G11B5/86 ,  G06F3/0604 ,  G06F3/0632 ,  G06F3/0634 ,  G06F3/0689

摘要： A file is transferred directly between a parent magnetic-disk device and a child magnetic-disk device. In one embodiment, a parent magnetic-disk device has a host-mode execution program, whereas a child magnetic-disk device is capable operating in a device mode as is the case with an ordinary magnetic-disk device. The parent magnetic-disk device has an operating-mode-setting unit including a special-purpose jumper block. An MPU employed in the parent magnetic-disk device executes the host-mode execution program to put the parent magnetic-disk device in a host mode. At an activation time, the MPU refers to the logic of the special jumper block to start an operation in the host mode. The MPU controls the parent magnetic-disk device to directly transfer a file to the child magnetic-disk device. Thus, the file can be transferred between the parent and child magnetic-disk devices without intervention by a host computer.

摘要翻译： 文件直接在父磁盘装置和子磁盘装置之间传送。 在一个实施例中，母磁盘装置具有主机模式执行程序，而子磁盘装置能够像普通磁盘装置一样在设备模式下运行。 母磁盘装置具有包括专用跳线块的操作模式设定单元。 在母磁盘装置中使用的MPU执行主机模式执行程序以将母磁盘装置置于主机模式。 在激活时，MPU参考专用跳线块的逻辑，以在主机模式下开始运行。 MPU控制母磁盘装置将文件直接传送到子磁盘装置。 因此，该文件可以在父磁盘和子磁盘设备之间进行传输，而无需主计算机的干预。

公开(公告)号：US20080249246A1

公开(公告)日：2008-10-09

申请号：US10573863

申请日：2004-09-21

申请人： Kenji Okada ,  Yoshiki Nakagawa

发明人： Kenji Okada ,  Yoshiki Nakagawa

IPC分类号： C08L33/02

CPC分类号： C08F290/046 ,  C08F290/04 ,  C09K3/10 ,  C09K2200/0625 ,  F16J15/14

摘要： The present invention provides a composition for on-site forming gaskets, which has excellent heat resistance, weather resistance, oil resistance, curability, compression set, and the like, a gasket, and (meth)acrylic acid and a curable composition thereof. Specifically, the present invention provides a composition for on-site forming gaskets containing a vinyl polymer with a (meth)acryloyl group at a molecular end as an essential component, and a gasket, a cured product of the composition exhibiting predetermined compression set. Also, the present invention provides a (meth)acrylic polymer having a (meth)acryloyl group at a molecular end and a curable composition thereof, a cured product exhibiting high oil resistance.

摘要翻译： 本发明提供一种具有优异的耐热性，耐候性，耐油性，固化性，压缩永久变形等的垫片和（甲基）丙烯酸及其可固化组合物的现场成型垫圈组合物。 具体而言，本发明提供了一种用于现场形成含有在分子端具有（甲基）丙烯酰基的乙烯基聚合物作为主要成分的垫片的垫片，以及具有预定压缩永久变形的组合物的固化物的垫圈。 另外，本发明提供了在分子末端具有（甲基）丙烯酰基的（甲基）丙烯酸系聚合物及其固化性组合物，具有高耐油性的固化物。

公开(公告)号：US20070179249A1

公开(公告)日：2007-08-02

申请号：US10561326

申请日：2004-06-21

申请人： Kenji Okada ,  Yoshiki Nakagawa

发明人： Kenji Okada ,  Yoshiki Nakagawa

IPC分类号： C08F8/00

CPC分类号： C08F290/04

摘要： An object of the present invention is to provide a curable composition comprising a vinyl polymer, the curable composition capable of providing a cured product having good mechanical properties. The present invention is a curable composition comprising (A) a vinyl polymer (I) comprising, at the molecular terminal, at least one group represented by the general formula (1): CH2═C(Ra)—C(O)O— (1), wherein Ra represents a hydrogen atom or a monovalent organic group having 1 to 20 carbon atoms, and (B) a monoacrylate phenolic antioxidant.

摘要翻译： 本发明的目的是提供一种包含乙烯基聚合物的可固化组合物，该固化组合物能够提供具有良好机械性能的固化产物。 本发明是一种可固化组合物，其包含（A）乙烯基聚合物（I），其在分子末端包含至少一个由通式（1）表示的基团：CH 2 CO 2（R C（O）O-（1）其中R a表示氢原子或碳原子数1〜20的一价有机基团，（B） 单丙烯酸酯酚类抗氧化剂。

公开(公告)号：US20060245713A1

公开(公告)日：2006-11-02

申请号：US11471662

申请日：2006-06-21

申请人： Kenji Okada ,  Koichi Harada

发明人： Kenji Okada ,  Koichi Harada

IPC分类号： G02B6/00

CPC分类号： C03B37/032 ,  C03B37/02745 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06

摘要： An optical fiber twisting apparatus that prevents line distortion in an optical fiber undergoing a drawing process and provides a consistent coating on a bare optical fiber. This optical fiber twisting apparatus includes a twist roller apparatus that having a twist roller that, by imparting a twist to an optical fiber, imparts a twist to a molten portion of an optical fiber preform positioned on an upstream side of the optical fiber, and a support portion that supports the twist roller. The accuracy of the outer circumference of the twist roller when the twist roller is forming a part of the twist roller apparatus is 15 μm or less.

摘要翻译： 一种光纤加捻装置，其防止经历拉伸工艺的光纤中的线变形，并在裸光纤上提供一致的涂层。 这种光纤加捻装置包括一个加捻辊装置，该加捻辊装置具有一个加捻辊，通过赋予光纤的扭曲，对位于光纤的上游侧的光纤预制件的熔融部分施加扭曲， 支撑扭转辊的支撑部分。 当加捻辊形成加捻辊装置的一部分时，加捻辊的外周的精度为15μm以下。

公开(公告)号：US07035197B2

公开(公告)日：2006-04-25

申请号：US10009356

申请日：2001-03-09

申请人： Kenji Okada

发明人： Kenji Okada

IPC分类号： G11B7/00

CPC分类号： G11B19/04 ,  F16F15/363 ,  G11B19/2009 ,  G11B19/2027

摘要： A disk drive capable of producing the effect of a balancer even in a variety of reproduction and recording speeds without causing problems owing to the balancer, comprising a balancer in which magnetic balls 1 movably accommodated inside a damper 6 cancel any imbalance amount of a disk 5, and a detection section 14 provided near the clamper 6 to detect the behavior of the magnetic balls 1.

摘要翻译： 一种能够产生平衡器即使在各种再现和记录速度下的效果的磁盘驱动器，而不会由于平衡器而引起问题，包括平衡器，其中可移动地容纳在减震器6内的磁珠1抵消了磁盘5的任何不平衡量 以及设置在夹持器6附近以检测磁珠1的行为的检测部分14。

公开(公告)号：US06456451B1

公开(公告)日：2002-09-24

申请号：US09220419

申请日：1998-12-24

申请人： Hideo Asano ,  Kenji Okada ,  Tetsuo Ueda ,  Koichi Arai ,  Hideki Ohzeki

发明人： Hideo Asano ,  Kenji Okada ,  Tetsuo Ueda ,  Koichi Arai ,  Hideki Ohzeki

IPC分类号： G11B5596

CPC分类号： G11B5/5547

摘要： A disk drive seek control system device to reduce track pitch. When data is recorded, an offset value is added to the position of a read head element along the width of a track corresponding to an offset &Dgr;w between the read head element and a write head element. The value of the offset depends on the yaw angle &thgr; of the head. When data is read, the position of the read head element is chosen to be either the position of the write head element during write operations, or the midpoint between the position of the write head element and the read head element during write operations, or the center of a track.

公开(公告)号：US5661581A

公开(公告)日：1997-08-26

申请号：US542014

申请日：1995-10-12

申请人： Masato Mushiage ,  Naotaro Nakata ,  Yuta Tezen ,  Kenji Okada

发明人： Masato Mushiage ,  Naotaro Nakata ,  Yuta Tezen ,  Kenji Okada

IPC分类号： G02B6/42 ,  H04B10/00

CPC分类号： H04B10/40 ,  G02B6/4246

摘要： An optical communication unit includes a light emitting element for emitting a transmission signal light; a condenser lens for coupling the transmission signal light from the light emitting element to an optical transmission path; and a light receiving element for receiving a receiving signal light from the optical transmission path. A light emitting surface in the light emitting element is formed by a plane tilted to a perpendicular plane in a substrate surface of a chip in the light emitting element.

摘要翻译： 光通信单元包括用于发射发射信号光的发光元件; 聚光透镜，用于将来自发光元件的透射信号光耦合到光传输路径; 以及用于接收来自光传输路径的接收信号光的光接收元件。 发光元件中的发光表面由在发光元件中的芯片的衬底表面中的垂直平面倾斜的平面形成。