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1. 发明专利

JPH11326796A OPTICAL SWITCH 失效
公开(公告)号：JPH11326796A
公开(公告)日：1999-11-26
申请号：JP12899398
申请日：1998-05-12
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： SATO KAZUYASU , HORINO MASAYA , AIDA YASUO , NISHIYAMA SHUNICHI , MITA MASAHIRO , TOTSUKA YOSHIHARU , NAKATEGAWA MIKI
IPC分类号： G02B6/38 , G02B6/35 , G02B6/36 , G02B26/08
摘要： PROBLEM TO BE SOLVED: To provide a miniaturized mechanical type optical switch which can be produced through the simple assembly process of piling components on a substrate and reduces the transmission loss of light. SOLUTION: Concerning the optical switch for switching an optical path by relatively moving movable optical fibers 20a and 20b held by a movable optical fiber holding member 30 and fixed optical fibers 21a, 21b, 21c and 21d fixed by a fixed optical fiber fixing member 32 through an electro-magnetic actuator, the movable optical fiber holding member 30 and the fixed optical fiber fixing member 32 are prepared from soft magnetic ceramics. Thus, since the electro-magnetic actuator and the member for fixing the optical fibers can be shared, the optical switch can be miniaturized. Further, the miniaturized mechanical type optical switch can be provided through the simple process of piling components on the substrate.

2. 发明专利

JP2006320036A MOTOR 审中-公开
公开(公告)号：JP2006320036A
公开(公告)日：2006-11-24
申请号：JP2005136789
申请日：2005-05-10
申请人： HITACHI LTD , HITACHI IND EQUIPMENT SYS , HITACHI METALS LTD
发明人： ENOMOTO YUJI , ITO MOTOYA , MASAKI RYOZO , OHARA KOICHIRO , MITA MASAHIRO , KOMURO MATAHIRO , MASUZAWA MASAHIRO
IPC分类号： H02K15/03 , H02K1/27 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide a method for enhancing both the output and the efficiency of a motor by using a rare earth bond magnet in a coreless motor. SOLUTION: Rotor core of a motor is formed by molding powder material, the molding has a bond magnet portion principally comprising a bonding material and magnet powder and a soft magnetic portion principally comprising a bonding material and soft magnetic powder, and a permanent magnet type rotor is formed using a compression molding means. In such a rotor structure, the bond magnet portion is coupled mechanically with the soft magnetic portion on at least one face of the magnetic pole. COPYRIGHT: (C)2007,JPO&INPIT

3. 发明专利

JP2015012707A リニアモータ审中-公开
标题翻译：线性电动机
公开(公告)号：JP2015012707A
公开(公告)日：2015-01-19
申请号：JP2013136693
申请日：2013-06-28
申请人：日立金属株式会社 , Hitachi Metals Ltd
发明人： OHASHI HIROMITSU , MITA MASAHIRO , MASUZAWA MASAHIRO
IPC分类号： H02K41/03
摘要：【課題】ヨーク内でループする永久磁石の磁束を低減し、可動子の推力を向上させることができるリニアモータを提供すること。【解決手段】リニアモータにおいて、可動子2は板状をなし、板状部分の各面には、突出端面が凸曲面の磁性体突起部22、23が移動方向に沿って略等ピッチで複数設けてあり、一方の磁性体突起部22(23)と、他方の磁性体突起部23(22)とは、移動方向に沿って千鳥配置としてあり、固定子1は、端面が凹曲面をなし、端面同士が間隙を隔てて対向する2つの歯部を内部に有する磁性体枠11を複数、厚み方向を移動方向として略等ピッチに配してなり、移動方向に沿って隣り合う各歯部間に、端面が該歯部と略同一形状の永久磁石を配してなり、各磁性体枠11を隔てる非磁性体部12を有し、可動子2は、磁性体突起部22、23が歯部及び永久磁石と対向するように前記間隙に配してある。【選択図】図1
摘要翻译：要解决的问题：提供一种线性电动机，其能够通过减小环内的永磁体的磁通量来改善可动元件的推力。解决方案：在线性电动机中，可动元件2制成平板状，在平板状部分的表面上，突出端面是突出的曲面的多个磁性物质突起22,23在移动方向上以大致相等的间距设置。一个磁性物质突起22（23）和另一个磁性物质突起23（22）以移动方向的Z字形方式设置。定子1包括非磁性体部分12，其通过在内部布置多个磁性物体框架11而形成，包括两个齿，其端面是凹入的曲面，并以大致相等的间距以相同的间隔彼此相对，同时限定作为移动方向的厚度方向和在移动方向上彼此相邻的齿之间，布置有永磁体，其端面具有与齿基本相同的形状。非磁性物体部分12分离磁性物体框架11.可移动元件2以这样的方式设置在间隙中，使得磁性物质突起22和23与齿和永磁体相对。

4. 发明专利

JP2014217089A リニアモータ用固定子有权
标题翻译：线性电机定子
公开(公告)号：JP2014217089A
公开(公告)日：2014-11-17
申请号：JP2013089727
申请日：2013-04-22
申请人：日立金属株式会社 , Hitachi Metals Ltd
发明人： MASUZAWA MASAHIRO , MITA MASAHIRO , AKAMATSU KAORU
IPC分类号： H02K41/03
CPC分类号： H02K41/03
摘要：【課題】動作時に渦電流を低減させるリニアモータ用固定子を提供する。【解決手段】複数の磁極歯(固定子歯11、21)と、該複数の磁極歯(固定子歯11、21)が並設してあり、並設方向に長い対向する一対の長尺部材(第1板状部1、第2板状部2)を含む基部とを備えるリニアモータ用固定子1001において、各磁極歯(固定子歯11、21)は並設方向に直交し、かつ基部の対向方向に直交する方向に積層した複数の金属板を含むように構成する。【選択図】図1
摘要翻译：要解决的问题：提供一种用于线性电动机的定子，用于减少驱动时的涡流。解决方案：线性电动机1001的定子包括：多个磁极齿（定子齿11,21）和多个磁极齿（定子齿11,21）平行布置; 以及包括在平行方向上延伸并彼此面对的一对长构件（第一板状部分1，第二板状部分2）的基部。每个磁极齿（定子齿11,21）包括与平行布置方向正交并且与基部的相对方向正交的多个金属板。

5. 发明专利

JP2014143881A Linear motor 审中-公开
标题翻译：线性电动机
公开(公告)号：JP2014143881A
公开(公告)日：2014-08-07
申请号：JP2013012244
申请日：2013-01-25
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： OHASHI HIROMITSU , MITA MASAHIRO , MASUZAWA MASAHIRO , KAWAKAMI MAKOTO
IPC分类号： H02K41/03
摘要： PROBLEM TO BE SOLVED: To provide a linear motor in which a use amount of a magnet does not increase even if total length of a moving distance is long and achieves high speed operation with low power by reducing hysteresis loss.SOLUTION: In a linear motor, a needle includes two armature cores and a magnet in rectangular plate shapes, in which a moving direction is set to be a longitudinal direction, inside a coil in a vertical posture. Projections are arranged in parallel along the longitudinal direction on faces confronted with a plate-like part of the stator of the armature core. The two armature cores sandwich the magnet, and the projection of one armature core and the projection of the other armature core are fixed to be arranged in a staggered manner. The magnet is magnetized in a direction toward the other armature core from the one armature core.
摘要翻译：要解决的问题：为了提供一种线性电动机，其中即使移动距离的总长度长，磁体的使用量也不会增加，并且通过降低磁滞损耗实现低功率的高速运行。解决方案：在线性电动机针中包括两个电枢铁心和一个以垂直姿势在一个线圈内沿长度方向设置的长方形板状磁铁。在与电枢铁心的定子的板状部分相对的面上，沿纵向平行布置突出部。两个电枢芯夹着磁体，一个电枢铁芯和另一个电枢铁芯的突出部分的突起固定成交错排列。磁铁从一个电枢铁心朝向另一个电枢铁芯的方向被磁化。

6. 发明专利

JP2014011889A Linear motor 审中-公开
标题翻译：线性电动机
公开(公告)号：JP2014011889A
公开(公告)日：2014-01-20
申请号：JP2012147190
申请日：2012-06-29
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： OHASHI HIROMITSU , MITA MASAHIRO
IPC分类号： H02K41/03
摘要： PROBLEM TO BE SOLVED: To provide a linear motor capable of reducing a magnetic flux of a permanent magnet looping in a yoke, and improving a thrust of a mover.SOLUTION: A mover 2 of a linear motor has a plate shape having a plurality of magnetic bodies arranged in a moving direction at equal intervals. A stator 1 has a U-shaped groove shape having two plate-shaped portions opposite to surfaces of the mover 2 at an interval, respectively. On the opposite surface of each plate-shaped portion, a plurality of teeth portions of magnetic members is arranged in the moving direction at equal intervals, and supporting bodies for supporting a permanent magnet are equipped between teeth portions. The supporting body has a plurality of magnetic body parts forming magnetic paths for magnetically coupling the plural sets of the teeth portions generally opposite to each other through the mover 2, and non-magnetic body parts partitioning the magnetic body parts.
摘要翻译：要解决的问题：提供一种线性电动机，其能够减小磁轭中的永久磁铁的磁通量，并提高动子的推力。解决方案：线性电动机的动子2具有板状，以相等的间隔沿移动方向排列的磁体。定子1分别具有与移动体2的表面相对的两个板状部分的U形槽形状。在每个板状部分的相对表面上，磁性部件的多个齿部分以相等的间隔沿移动方向布置，并且用于支撑永磁体的支撑体设置在齿部之间。支撑体具有形成磁路的多个磁体部分，用于通过移动体2将大量相互相对的多组齿部分磁耦合，以及分隔磁性体部分的非磁性体部分。

7. 发明专利

JP2010223340A MAGNETIC GEAR AND METHOD OF MANUFACTURING THE SAME 审中-公开
公开(公告)号：JP2010223340A
公开(公告)日：2010-10-07
申请号：JP2009071651
申请日：2009-03-24
申请人： HITACHI METALS LTD
发明人： MITA MASAHIRO
IPC分类号： F16H49/00 , H02K49/02
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a magnetic gear excellent in productivity, and to provide a magnetic gear. SOLUTION: The magnetic gear includes a ring-like thin plate wherein feeble magnetic parts 10a and ferromagnetic parts 19b' are continued to each other in the circumferential direction. The ferromagnetic part 10b has a projection part 10b' projecting toward the only inner peripheral side, and the feeble magnetic part 10a is made of a metal structure mainly composed of austenite, which is non-melting and obtained by heating it for transformation, and both the ferromagnetic parts are arranged with a constant interval in the circumferential direction. The ferromagnetic part 10b is structured so that when one of an outer peripheral side end and an inner peripheral side end takes a part as an in-flow end of a magnetic flux, the other end takes a part as an outflow end for the magnetic flux. COPYRIGHT: (C)2011,JPO&INPIT

8. 发明专利

JP2008209340A Magnetic rotator and rotational angle detector 有权
标题翻译：磁力旋转器和旋转角度探测器
公开(公告)号：JP2008209340A
公开(公告)日：2008-09-11
申请号：JP2007048422
申请日：2007-02-28
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： AIMUTA KYOHEI , MASUZAWA MASAHIRO , MITA MASAHIRO
IPC分类号： G01D5/245
摘要： PROBLEM TO BE SOLVED: To provide a rotational angle detector capable of detecting the rotational angle with high accuracy by preventing deviation in magnetizing of a magnetic rotator. SOLUTION: This magnetic rotator forms a magnetic field having a density distribution of magnetic fluxes in the circumferential direction. The magnetic rotator is configured of a soft magnetic inner peripheral ring section and an outer peripheral ring section provided so as to surround the inner peripheral ring section; the outer peripheral ring section has a plurality of anisotropic magnetic pieces, arranged in the circumferential direction. Each of the anisotropic magnetic pieces has a single-axis anisotropic property, and the outer peripheral face is projected in a convex shape; and the arrangement orientations of the anisotropic magnetic pieces differ from one another. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种旋转角度检测器，其能够通过防止磁性旋转体的磁化偏差而以高精度检测旋转角度。解决方案：该磁旋转器形成在圆周方向上具有磁通密度分布的磁场。磁旋转器由软磁内周环部分和外围环形部分构成，该环形部分围绕内周环部分设置; 外周环部具有沿周向配置的多个各向异性磁性片。各向异性磁性片具有单轴各向异性特性，外周面突出成凸状。并且各向异性磁性片的排列取向彼此不同。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2008151774A Rotation angle detector and rotating machine 有权
标题翻译：旋转角探测器和旋转机
公开(公告)号：JP2008151774A
公开(公告)日：2008-07-03
申请号：JP2007299950
申请日：2007-11-20
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： AIMUTA KYOHEI , MITA MASAHIRO , SHIMOE OSAMU
IPC分类号： G01D5/245 , H02K11/00 , H02K21/14 , H02K29/08
摘要： PROBLEM TO BE SOLVED: To provide a rotation angle detector of high rotation angle detection precision, and a rotating machine. SOLUTION: This rotation angle detector is provided with a magnetic rotor having N pole pairs of magnetic poles (N is 2 or more of integer), and four Hall sensors for detecting the rotation angle of the magnetic rotor, in response to a magnetic flux applied from the magnetic rotor, and the four Hall sensors are constituted of the first and second radial-directional Hall sensors with a magnetosensitive axis arranged along a radial direction of the magnetic rotor, and the first and second circumferential-directional Hall sensors with a magnetosensitive axis arranged along a circumferential direction of the magnetic rotor. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供高旋转角度检测精度的旋转角度检测器和旋转机器。解决方案：该旋转角度检测器设置有具有N极对的磁极（N为2以上的整数）的磁性转子和用于响应于磁性转子的四个霍尔传感器，用于检测磁性转子的旋转角度由磁转子施加的磁通量，四个霍尔传感器由沿着磁转子径向排列的磁感应轴的第一和第二径向霍尔传感器构成，第一和第二周向霍尔传感器具有沿着磁转子的圆周方向布置的磁感应轴。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007114088A Magnetostrictive torque sensor 审中-公开
标题翻译：磁感应扭矩传感器
公开(公告)号：JP2007114088A
公开(公告)日：2007-05-10
申请号：JP2005306846
申请日：2005-10-21
申请人： Hitachi Cable Ltd , Hitachi Metals Ltd , 日立金属株式会社 , 日立電線株式会社
发明人： OYO MATSU , IKEDA YUKIO , MASUZAWA MASAHIRO , MITA MASAHIRO
IPC分类号： G01L3/10 , B62D5/04 , B62D5/06
摘要： PROBLEM TO BE SOLVED: To provide a magnetostrictive torque sensor capable of realizing cost reduction without flow a large electric current, which has been required in conventional cases, when magnetization curve is to be utilized effectively.
SOLUTION: In the magnetostrictive torque sensor 1 equipped with a rotating shaft 2, with magnetostrictive property and a magnetic core M prepared at a predetermined spacing along the circumference of rotating shaft 2 and arranging coils 3a, 3b, 4a, and 4b for detecting the torque imposed to the rotating shaft 2 along inner circumference, including the coils 3a and 4a tilting +45-degrees with respect to a central axis line O as well as coils 3b and 4b tilting -45-degrees with respect to a central axis line O; a current source 400 equipped with an AC power 400B generating alternating voltage and a DC power 400A generating direct-current voltage are connected to the input terminal of the coils 3a and 4b; and moreover, a current source 500 equipped with an AC power 500B generating alternating voltage and a DC power 500A generating direct-current voltage are connected to the input terminal of the coils 3b and 4a.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种磁致伸缩扭矩传感器，当磁化曲线被有效地利用时，能够实现在常规情况下需要的大电流的成本降低。解决方案：在装备有具有磁致伸缩性的旋转轴2和沿着旋转轴2的圆周以预定间隔制备的磁芯M的磁致伸缩扭矩传感器1中，并且布置线圈3a，3b，4a和4b，用于检测沿内周施加到旋转轴2的扭矩，包括相对于中心轴线O倾斜+ 45度的线圈3a和4a以及相对于中心轴线倾斜-45度的线圈3b和4b 线O; 配置有产生交流电压的交流电力400B的电流源400和产生直流电压的直流电力400A连接到线圈3a和4b的输入端子; 此外，配备有产生交流电压的交流电力500B的电流源500和产生直流电压的直流电力500A连接到线圈3b和4a的输入端子。版权所有（C）2007，JPO＆INPIT

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