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    Optical switching device comprising plural mechanical optical switches
    3.
    发明授权
    Optical switching device comprising plural mechanical optical switches 失效
    光开关器件包括多个机械光开关

    公开(公告)号：US06870984B1

    公开(公告)日：2005-03-22

    申请号：US10151938

    申请日：2002-05-22

    申请人： Yoshiaki Uchida ,  Fumio Nitanda ,  Tomoki Soutome ,  Shinji Furuichi

    发明人： Yoshiaki Uchida ,  Fumio Nitanda ,  Tomoki Soutome ,  Shinji Furuichi

    IPC分类号： G02B26/08 ,  G02B6/35 ,  G02B6/26

    CPC分类号： G02B6/3582 ,  G02B6/3502 ,  G02B6/3544 ,  G02B6/3572

    摘要： An optical switching device comprising a plurality of mechanical optical switching structures having one to several movable optical fibers and one to several fixed optical fibers installed in a housing in which a refractive index matching oil is filled up and immerses the structures. Each of the structures has an electromagnetic actuator to reciprocate open ends of the movable optical fibers relatively to open ends of the fixed optical fibers and to connect/disconnect optical paths. Ends opposite to the open ends of the movable optical fibers and the fixed optical fibers are drawn out through ports located on the housing so that a certain number of optical fibers among the optical fibers drawn out serve as input optical fibers, while a certain number of optical fibers among the other optical fibers drawn out serve as output optical fibers, to constitute the optical switching device of m×n type, in which m is the number of input paths and n is the number of output paths, providing a small-sized optical switching device having variable numbers of input/output paths.

    摘要翻译： 一种光学开关装置，包括多个机械光学开关结构，其具有一个至几个可移动光纤和一个至几个固定的光纤，该光纤安装在壳体中，其中折射率匹配油被填充并浸没在该结构中。 每个结构具有电磁致动器，以相对于固定光纤的开口端往复移动可动光纤的开口端并连接/断开光路。 可移动光纤和固定光纤的开口端的相反端部通过位于壳体上的端口被抽出，使得被拉出的光纤中的一定数量的光纤用作输入光纤，而一定数量的 引出的其他光纤中的光纤作为输出光纤，构成mxn型光开关器件，其中m为输入通路数，n为输出路径数，提供小尺寸光开关 设备具有可变数量的输入/输出路径。

    Second harmonic generating element and the production method thereof
    4.
    发明授权
    Second harmonic generating element and the production method thereof 失效
    二次谐波发生元件及其制造方法

    公开(公告)号：US5412502A

    公开(公告)日：1995-05-02

    申请号：US8310

    申请日：1993-01-25

    申请人： Satoshi Makio ,  Fumio Nitanda ,  Yasuhiro Furukawa ,  Kohei Ito ,  Masazumi Sato ,  Kazutami Kawamoto ,  Kenchi Ito

    发明人： Satoshi Makio ,  Fumio Nitanda ,  Yasuhiro Furukawa ,  Kohei Ito ,  Masazumi Sato ,  Kazutami Kawamoto ,  Kenchi Ito

    IPC分类号： G02F1/355 ,  G02F1/377 ,  G02F1/37

    CPC分类号： G02F1/3775 ,  G02F1/3558

    摘要： Using an LiTaO.sub.3 or LiNbO.sub.3 substrate, a proton exchange layer in a grid pattern, namely sprout areas of polarization inversion, is firstly, formed on the surface of said substrate and, after formation of the pattern, heat treatment is executed at a temperature of 200.degree. C. or more and for a holding time of 10 minutes or less. By maintaining the temperature gradient up to said heat treatment point at 50.degree. C./min. or steeper and by maintaining the temperature decrease rate from said heat treatment point at 50.degree. C./min. or faster, polarization inverted areas are formed downwards from the proton exchanged areas, while in addition to making the top ends of said polarization inverted areas into an acute angle, the depth/weight ratio of the polarization inverted grids being formed is made to exceed 1, thus enabling the production of a high-efficiency SHG element.

    摘要翻译： 使用LiTaO 3或LiNbO 3衬底，首先在所述衬底的表面上形成网格图案中的质子交换层，即极化反转的发芽区域，在形成图案之后，在200℃的温度下进行热处理 ℃以上，保持时间为10分钟以下。 通过将温度梯度保持在50℃/分钟以上的热处理点。 或更陡，并且通过将所述热处理点的温度降低速率保持在50℃/分钟。 或更快的偏振反转区域从质子交换区域向下形成，而除了使所述偏振反转区域的顶端成为锐角之外，所形成的偏振反转栅格的深度/重量比超过1 ，因此能够生产高效率的SHG元件。

    OPTICAL SWITCHING DEVICE COMPRISING PLURAL MECHANICAL OPTICAL SWITCHES
    6.
    发明申请
    OPTICAL SWITCHING DEVICE COMPRISING PLURAL MECHANICAL OPTICAL SWITCHES 失效
    包含多个机械光学开关的光学开关装置

    公开(公告)号：US20050063640A1

    公开(公告)日：2005-03-24

    申请号：US10151938

    申请日：2002-05-22

    申请人： Yoshiaki Uchida ,  Fumio Nitanda ,  Tomoki Soutome ,  Shinji Furuichi

    发明人： Yoshiaki Uchida ,  Fumio Nitanda ,  Tomoki Soutome ,  Shinji Furuichi

    IPC分类号： G02B26/08 ,  G02B6/35 ,  G02B6/26

    CPC分类号： G02B6/3582 ,  G02B6/3502 ,  G02B6/3544 ,  G02B6/3572

    摘要： An optical switching device comprising a plurality of mechanical optical switching structures having one to several movable optical fibers and one to several fixed optical fibers installed in a housing in which a refractive index matching oil is filled up and immerses the structures. Each of the structures has an electromagnetic actuator to reciprocate open ends of the movable optical fibers relatively to open ends of the fixed optical fibers and to connect/disconnect optical paths. Ends opposite to the open ends of the movable optical fibers and the fixed optical fibers are drawn out through ports located on the housing so that a certain number of optical fibers among the optical fibers drawn out serve as input optical fibers, while a certain number of optical fibers among the other optical fibers drawn out serve as output optical fibers, to constitute the optical switching device of m×n type, in which m is the number of input paths and n is the number of output paths, providing a small-sized optical switching device having variable numbers of input/output paths.

    摘要翻译： 一种光学开关装置，包括多个机械光学开关结构，其具有一个至几个可移动光纤和一个至几个固定的光纤，该光纤安装在壳体中，其中折射率匹配油被填充并浸没在该结构中。 每个结构具有电磁致动器，以相对于固定光纤的开口端往复移动可动光纤的开口端并连接/断开光路。 可移动光纤和固定光纤的开口端的相反端部通过位于壳体上的端口被抽出，使得被拉出的光纤中的一定数量的光纤用作输入光纤，而一定数量的 引出的其他光纤中的光纤作为输出光纤，构成mxn型光开关器件，其中m为输入通路数，n为输出路径数，提供小尺寸光开关 设备具有可变数量的输入/输出路径。

    Optical switch
    7.
    发明授权
    Optical switch 失效

    公开(公告)号：US06549689B2

    公开(公告)日：2003-04-15

    申请号：US09770490

    申请日：2001-01-29

    申请人： Shinji Furuichi ,  Fumio Nitanda

    发明人： Shinji Furuichi ,  Fumio Nitanda

    IPC分类号： G02B626

    CPC分类号： G02B6/3582 ,  G02B6/3502 ,  G02B6/3548 ,  G02B6/3572

    摘要： An optical switch comprising a fixed optical-fiber holder for holding either of input/output optical fibers, a movable optical-fiber holder for holding the other of the input/output optical fibers, which faces the fixed optical-fiber holder and is movable with respect to the fixed optical-fiber holder, and a driver for moving the movable optical-fiber holder with respect to the fixed optical-fiber holder immersed in the refractive index matching material, such as silicone oil. Inside the housing provided are a heater for heating the refractive index matching material, a means for sensing temperature inside the housing, and a controller for turning on the power to the heater when the measured value of the temperature sensing means is lower than a first predetermined value, and turning off the power to the heater when the measured value of the temperature sensing means is higher than a second predetermined value. This optical switch is capable of maintaining proper operation even when its service temperature becomes low, and preventing overheat.

    Floating magnetic head
    9.
    发明授权
    Floating magnetic head 失效
    浮动磁头

    公开(公告)号：US5771133A

    公开(公告)日：1998-06-23

    申请号：US652021

    申请日：1996-05-21

    申请人： Ryo Goto ,  Masahiro Ao ,  Fumio Nitanda

    发明人： Ryo Goto ,  Masahiro Ao ,  Fumio Nitanda

    IPC分类号： G11B5/60 ,  G11B21/21

    CPC分类号： G11B5/6005

    摘要： Two floating rails are provided on a slider of a floating magnetic head. Rear portions, in the advancing direction of a floating magnetic head with respect to a magnetic recording medium, of the respective floating rails are cut out. That is, the floating rails exist only in front of the cut-out portions. An auxiliary rail is formed in the rear of one of the floating rails. The auxiliary rail is narrower than the floating rail, wider than the track width of an electromagnetic conversion element, and approximately as high as the floating rail. The electromagnetic conversion element is provided at a rear portion of the auxiliary rail.

    摘要翻译： 两个浮动导轨设置在浮动磁头的滑块上。 切出相应浮动导轨相对于磁记录介质的浮动磁头前进方向的后部。 也就是说，浮动轨道仅存在于切口部分的前方。 辅助轨道形成在浮动轨道之一的后部。 辅助轨道比浮动轨道窄，比电磁转换元件的轨道宽度宽，大致与浮动轨道一样高。 电磁转换元件设置在辅助轨道的后部。

    Flying-type composite magnetic head with appropriate bonding glasses and method of producing same
    10.
    发明授权
    Flying-type composite magnetic head with appropriate bonding glasses and method of producing same 失效
    具有适当粘结眼镜的飞行型复合磁头及其制造方法

    公开(公告)号：US5016129A

    公开(公告)日：1991-05-14

    申请号：US330216

    申请日：1989-03-29

    申请人： Ryo Goto ,  Tadafumi Tomitani ,  Fumio Nitanda ,  Masanobu Yamazaki ,  Manabu Toyoda ,  Makoto Ushijima

    发明人： Ryo Goto ,  Tadafumi Tomitani ,  Fumio Nitanda ,  Masanobu Yamazaki ,  Manabu Toyoda ,  Makoto Ushijima

    IPC分类号： G11B5/105 ,  G11B5/127 ,  G11B5/23

    CPC分类号： G11B5/105 ,  G11B5/1272 ,  G11B5/232 ,  Y10T29/49041 ,  Y10T29/49059

    摘要： A flying-type composite magnetic head includes (a) a magnetic core constituted by a pair of core pieces bonded together by a first glass portion, at least one of opposing surfaces of the core pieces being formed with a thin magnetic metal layer; (b) a non-magnetic slider having a slit for receiving the magnetic core; and (c) a second glass portion for fixing the magnetic core in the slit; the first glass portion having a softening point lower than a first bonding temperature by 70.degree. C. or more and a yielding temperature higher than a second bonding temperature, and the second glass portion having a softening point lower than a second bonding temperature by 70.degree. C. or more. The first bonding temperature T.sub.1 .degree.C.) for forming the first glass portion satisfies the following relation:T.sub.1 .ltoreq.aW+b,wherein W is a thickness (.mu.m) of the thin magnetic metal layer, a is between -25 and -15 and b is between 720 and 770, and a second bonding temperature T.sub.2 for forming the second glass portion is 530.degree. C. or lower.

    摘要翻译： 飞行型复合磁头包括：（a）由通过第一玻璃部分接合在一起的一对芯片构成的磁芯，所述芯片的相对表面中的至少一个形成有薄的磁性金属层; （b）具有用于接收磁芯的狭缝的非磁性滑块; 和（c）用于将所述磁芯固定在所述狭缝中的第二玻璃部分; 第一玻璃部分的软化点低于第一接合温度70℃以上，屈服温度高于第二接合温度，第二玻璃部分的软化点低于第二接合温度70℃ C.或更多。 用于形成第一玻璃部分的第一接合温度T1℃）满足以下关系：T1