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1.发明授权
公开(公告)号：US5793712A
公开(公告)日：1998-08-11
申请号：US729764
申请日：1996-10-07
申请人： Naoki Nishimura , Eiichi Fujii
发明人： Naoki Nishimura , Eiichi Fujii
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10589 , G11B11/10504 , G11B11/10515 , Y10S428/90
摘要： A method of recording and reproducing information on a magnetooptical recording medium includes the steps of irradiating the medium with laser light to heat a reproducing layer at least to a predetermined temperature at which the layer is vertically magnetizable, thereby rendering the reproducing layer vertically magnetizable and causing it to effect exchange coupling with a recording layer. The method also includes the step of applying a vertical external magnetic field to a portion of the medium irradiated with the laser light and applying a horizontal external magnetic field, weaker than the vertical external magnetic field, during recording and reproducing of data.
摘要翻译： 一种在磁光记录介质上记录和再现信息的方法包括以下步骤：用激光照射介质，以将再生层加热到至少一层可垂直磁化的预定温度，从而使再现层可垂直磁化并引起 它实现与记录层的交换耦合。 该方法还包括在记录和再现数据期间向照射激光的介质的一部分施加垂直外部磁场并施加比垂直外部磁场弱的水平外部磁场的步骤。
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2.发明授权
公开(公告)号：US5810979A
公开(公告)日：1998-09-22
申请号：US729763
申请日：1996-10-07
申请人： Naoki Nishimura , Eiichi Fujii
发明人： Naoki Nishimura , Eiichi Fujii
CPC分类号： G11B11/10589 , G11B11/10504 , G11B11/10515 , Y10S428/90
摘要： A method of producing a magneto-optical recording medium provided with a reproducing layer on a recording film on a substrate, the reproducing film being in-plane magnetized at room temperature and perpendicularly magnetized at an elevated temperature, and the recording film being perpendicularly magnetized at temperatures between room temperature and its Curie temperature. The method includes the steps of forming the reproducing layer on the substrate while applying a magnetic field in a direction parallel to the film surface of the reproducing film which is being formed, and forming the recording film on the reproducing film.
摘要翻译： 一种制造在基板上的记录膜上设置有再现层的磁光记录介质的方法，该再现膜在室温下被平面内磁化并在高温下垂直磁化，并且该记录膜垂直磁化在 室温与其居里温度之间的温度。 该方法包括以下步骤：在与正在形成的再现膜的膜表面平行的方向上施加磁场并在再现膜上形成记录膜的同时在衬底上形成再现层。
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3.发明授权
公开(公告)号：US5656384A
公开(公告)日：1997-08-12
申请号：US230781
申请日：1994-04-21
申请人： Naoki Nishimura , Eiichi Fujii
发明人： Naoki Nishimura , Eiichi Fujii
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10589 , G11B11/10504 , G11B11/10515 , Y10S428/90
摘要： A magnetooptical recording medium for information recording and information reproduction includes plural thin films, including at least a reproducing layer and a recording layer, laminated on a substrate. The reproducing layer is composed of a magnetic thin film which assumes a horizontally magnetized state at room temperature but assumes a vertically magnetized state above a predetermined temperature higher than the room temperature. The magnetization in the horizontally magnetized state is free from vertical orientation, including the magnetic wall. The recording layer is composed of a magnetic thin film which assumes a vertically magnetized state at room temperature and above the predetermined temperature.
摘要翻译： 用于信息记录和信息再现的磁光记录介质包括层叠在基板上的至少包括再现层和记录层的多个薄膜。 再现层由在室温下呈水平磁化状态但在高于室温的预定温度以上呈垂直磁化状态的磁性薄膜构成。 水平磁化状态下的磁化没有垂直取向，包括磁壁。 记录层由在室温下和高于预定温度呈垂直磁化状态的磁性薄膜组成。
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4.发明授权
公开(公告)号：US5636187A
公开(公告)日：1997-06-03
申请号：US528609
申请日：1995-09-15
申请人： Eiichi Fujii
发明人： Eiichi Fujii
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/10595 , G11B11/10508
摘要： In a magnetooptical recording apparatus, a magnetic field modulated in accordance with an input signal is applied to a portion of a recording medium onto which a light beam is irradiated. The magnetooptical recording apparatus includes a device for applying a magnetic field for canceling a self leakage magnetic field applied from a portion having a magnetization other than the light beam irradiated portion of the medium, and a leakage magnetic field leaking from a member other than the medium.
摘要翻译： 在磁光记录装置中，根据输入信号调制的磁场被施加到照射有光束的记录介质的一部分上。 磁光记录装置包括用于施加磁场的装置，用于消除从具有除了介质的光束照射部分之外的磁化的部分施加的自身泄漏磁场，以及从介质之外的部件泄漏的漏磁场 。
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公开(公告)号：US06424602B1
公开(公告)日：2002-07-23
申请号：US09467180
申请日：1999-12-20
申请人： Eiichi Fujii
发明人： Eiichi Fujii
IPC分类号： G11B1100
CPC分类号： G11B11/10515 , G11B11/10543 , G11B11/10578 , G11B11/10584
摘要： Disclosed herein is a magneto-optical reproducing apparatus for reproducing information recorded on a magneto-optical medium comprising a substrate, and a first magnetic layer, a second magnetic layer and a third magnetic layer which are laminated on the substrate in that order, the first magnetic layer being a magnetic film relatively smaller in domain wall coercivity and greater in domain wall displaceability at a temperature close to ambient temperature compared with the third magnetic layer, and the second magnetic layer being a magnetic film having a Curie temperature lower than the first magnetic layer and the third magnetic layer, the apparatus comprising: an optical system that the medium is irradiated with a light beam, domain walls of a magnetic domain for information formed on the medium being displaced by the irradiation of the light beam; a photosensor for detecting a change in the polarization direction of reflected light of the light beam to output a reproduction signal; a differentiating circuit for differentiating the reproduction signal outputted from the photosensor; and a binarizing circuit for generating a binary signal by comparing the signal differentiated in the differentiating circuit with a prescribed threshold value.
摘要翻译： 本文公开了一种用于再现记录在包括基板的磁光介质上的信息的磁光再现装置，以及依次层压在基板上的第一磁性层，第二磁性层和第三磁性层，第一 磁性层是与第三磁性层相比在畴壁矫顽力中相对较小的磁性膜和在接近环境温度的温度下的畴壁可移动性更高，并且第二磁性层是具有居里温度低于第一磁性的磁性膜 层和第三磁性层，所述装置包括：光学系统，介质被光束照射，磁畴的畴壁用于通过照射光束而在介质上形成的信息被移位;光电传感器，用于检测 光束的反射光的偏振方向的变化，输出再现信号; a 微分电路，用于区分从光传感器输出的再现信号; 以及二值化电路，用于通过将微分电路中微分的信号与规定的阈值进行比较来产生二进制信号。
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公开(公告)号：US5525378A
公开(公告)日：1996-06-11
申请号：US296163
申请日：1994-08-26
IPC分类号： G11B11/105 , H05H1/00
CPC分类号： G11B11/10506 , G11B11/10519 , G11B11/10586 , G11B11/10591 , Y10T428/26
摘要： A magnetooptical recording medium provided with a first magnetic layer and a second magnetic layer having a higher Curie point and a lower coercive force than the first magnetic layer and being exchange coupled with the first magnetic layer satisfies the relation: ##EQU1## wherein H.sub.H is the coercive force of the first magnetic layer; H.sub.L is the coercive force of the second magnetic layer; M.sub.s is the saturation magnetization of the second magnetic layer; h is the thickness thereof; and .sigma..sub.w is the magnetic wall energy between the first and second magnetic layers.
摘要翻译： 具有第一磁性层和具有比第一磁性层更高的居里点和较低的矫顽力并与第一磁性层交换耦合的第二磁性层的磁光记录介质满足以下关系：其中HH是 第一磁性层的矫顽力; HL是第二磁性层的矫顽力; Ms是第二磁性层的饱和磁化强度; h是其厚度; σw是第一和第二磁性层之间的磁壁能量。
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7.发明授权
公开(公告)号：US5253233A
公开(公告)日：1993-10-12
申请号：US758283
申请日：1991-08-28
申请人： Eiichi Fujii
发明人： Eiichi Fujii
IPC分类号： G11B11/105 , G11B13/04
CPC分类号： G11B11/10584
摘要： A method of making a magneto-optical recording medium for having information magnetically recorded on its recording layer read out by magneto-optical effect by applying a reproducing light beam emitted from a semiconductor laser thereto and detecting the reflected light beam thereof by means of a photodetector having no self-multiplication characteristic or a photodetector having a self-multiplication characteristic. The method includes the steps of selecting a recording layer comprising a magnetic film; selecting a light interference layer comprising a dielectric; defining the thickness of the light interference layer by: ##EQU1## where d is the film thickness of the light interference layer, N is the refractive index of the light interference layer and .lambda. is the wavelength of the reproducing light, Y is selected from 0, 1 and 2, and 1.ltoreq.X.ltoreq.3 or 5.ltoreq.X.ltoreq.7 in the first case or 2.ltoreq.X.ltoreq.3.9 or 4.1.ltoreq.X.ltoreq.6 in the second case, respectively; selecting a light reflecting layer and arranging the recording layer, the light interference layer and the light reflecting layer in succession along one direction to form the magneto-optical recording medium.
摘要翻译： 一种制造磁光记录介质的方法，用于通过将从半导体激光器发射的再现光束施加到其上并通过光电检测器检测其反射光束，通过磁光效应从其记录层上磁记录信息 不具有自倍增特性或具有自乘特性的光电检测器。 该方法包括以下步骤：选择包括磁性膜的记录层; 选择包含电介质的光干涉层; 通过以下方式限定光干涉层的厚度：其中d是光干涉层的膜厚度，N是光干涉层的折射率，λ是再现光的波长，Y选自0 在第一种情况下为1，2和1为X = 3或5 / X = 7，或者2为X = 3.9或4.1
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8.发明申请公开(公告)号：US20120307257A1
公开(公告)日：2012-12-06
申请号：US13577883
申请日：2011-01-27
申请人： Minoru Yoshii , Eiichi Fujii
发明人： Minoru Yoshii , Eiichi Fujii
CPC分类号： H01S3/1055 , A61B5/0066 , G01J3/10 , G01N21/4795 , G01N2201/0675 , H01S3/08009 , H01S3/08013 , H01S3/0805 , H01S3/0812 , H01S3/105 , H01S3/1068 , H01S5/141 , H01S5/146
摘要： The present invention provides a light source apparatus capable of producing stable oscillation and performing high-speed wavelength sweeping over a desired wavelength range.A swept light source apparatus in which oscillation wavelength is continuously changeable is provided. The apparatus includes, inside a resonator, an optical amplification medium that amplifies light, a first device configured to disperse light emitted from the optical amplification medium and thus produce beams having different wavelengths, a second device functioning as a non-focusing optical element and configured to collimate the beams having different wavelengths resulting from the dispersion by the first device, and a selecting device configured to select a beam having a specific wavelength from among the beams collimated by the second device. The beam having the specific wavelength selected by the selecting device is fed back to the optical amplification medium.
摘要翻译： 本发明提供能够产生稳定振荡并且在期望的波长范围内执行高速波长扫描的光源装置。 提供振荡波长连续变化的扫掠光源装置。 该装置在谐振器内包括放大光的光放大介质，配置成分散从光放大介质发射的光并因此产生具有不同波长的光束的第一器件，用作非聚焦光学元件的第二器件， 准直由第一装置的色散产生的具有不同波长的光束;以及选择装置，被配置为从由第二装置准直的光束中选择具有特定波长的光束。 具有由选择装置选择的特定波长的光束被反馈到光放大介质。
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公开(公告)号：US07498215B2
公开(公告)日：2009-03-03
申请号：US11687064
申请日：2007-03-16
申请人： Morimi Hashimoto , Eiichi Fujii
发明人： Morimi Hashimoto , Eiichi Fujii
IPC分类号： H01L21/336
CPC分类号： H01L29/0665 , B82Y10/00 , H01L29/0673 , Y10S977/762 , Y10S977/938
摘要： Provided is a product including a group of a plurality of wires, in which longitudinal directions of the wires are arranged in one direction, and a method of producing the same. The longitudinal directions of a plurality of wires each covered with a polymer are arranged in one direction in a solvent, and the plurality of the wires whose longitudinal directions are arranged in one direction is fixed by using the polymer.
摘要翻译： 本发明提供一种包括一组电线的产品及其制造方法，其中电线的纵向方向沿一个方向排列。 每个被聚合物覆盖的多个线的纵向方向在溶剂中沿一个方向布置，并且通过使用聚合物固定长度方向布置在一个方向上的多根电线。
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10.发明授权公开(公告)号：US07198411B2
公开(公告)日：2007-04-03
申请号：US10797632
申请日：2004-03-09
申请人： Eiichi Fujii , Tomoko Koyama
发明人： Eiichi Fujii , Tomoko Koyama
IPC分类号： G02B6/36
CPC分类号： G02B6/4201 , G02B6/4228 , G02B6/424 , G02B6/4244 , G02B6/4245 , G02B6/4257
摘要： A method is provided to precisely mount an optical device and an optical fiber without manual alignment. A tapered through-hole is provided in a substrate to house the optical device whose optical transmission point substantially coincides with a geometrical center. The optical transmitter having a larger diameter than a diameter of the optical device is further inserted in the tapered through-hole housing the optical device.
摘要翻译： 提供了一种无需手动对准来精确安装光学装置和光纤的方法。 锥形通孔设置在基板中以容纳其光传输点基本上与几何中心重合的光学装置。 具有比光学装置的直径大的直径的光发射器还被插入到容纳光学装置的锥形通孔中。
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