公开(公告)号：US4576699A

公开(公告)日：1986-03-18

申请号：US613383

申请日：1984-05-23

申请人： Noboru Sato ,  Tomiji Tanaka

发明人： Noboru Sato ,  Tomiji Tanaka

IPC分类号： G11B5/851 ,  G11B7/24 ,  G11B7/26 ,  G11B11/10 ,  G11B11/105 ,  G11C13/06 ,  G11B5/64

CPC分类号： G11B11/10586 ,  G11B5/851 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12632 ,  Y10T428/12931

摘要： An improved magneto-optical recording medium and a method of making the same, the medium including a substrate base and a magneto-optical recording layer formed on the base and composed of a plurality of layers each of which contains a rare earth metal and a transition metal. The relative concentration ratio between the rare earth metal and the transition metal in the layers varies cyclically in the direction of the thickness of the magneto-optical recording layer. The recording medium is conveniently manufactured by simultaneously depositing the transition metal and the rare earth metal by co-sputtering the two metals on a base and providing relative movement between the base and the metal sources during co-sputtering to produce the multilayer recording structure.

公开(公告)号：US4670356A

公开(公告)日：1987-06-02

申请号：US802992

申请日：1985-11-29

申请人： Noboru Sato ,  Tomiji Tanaka

发明人： Noboru Sato ,  Tomiji Tanaka

IPC分类号： G11B5/851 ,  G11B7/24 ,  G11B7/26 ,  G11B11/10 ,  G11B11/105 ,  G11C13/06 ,  G11B5/64

CPC分类号： G11B11/10586 ,  G11B5/851 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12632 ,  Y10T428/12931

摘要： An improved magneto-optical recording medium and a method of making the same, the medium including a substrate base and a magneto-optical recording layer formed on the base and composed of a plurality of layers each of which contains a rare earth metal and a transition metal. The relative concentration ratio between the rare earth metal and the transition metal in the layers varies cyclically in the direction of the thickness of the magneto-optical recording layer. The recording medium is conveniently manufactured by simultaneously depositing the transition metal and the rare earth metal by co-sputtering the two metals on a base and providing relative movement between the base and the metal sources during co-sputtering to produce the multilayer recording structure.

摘要翻译： 一种改进的磁光记录介质及其制造方法，所述介质包括基底和磁光记录层，所述基底和磁光记录层形成在基底上并且由多个层组成，每个层含有稀土金属和过渡金属 金属。 稀土金属和过渡金属之间的相对浓度比在磁光记录层的厚度方向上周期性变化。 记录介质方便地通过在基底上共溅射两种金属沉积过渡金属和稀土金属而制造，并且在共溅射期间提供基底和金属源之间的相对运动以产生多层记录结构。

公开(公告)号：US07729400B2

公开(公告)日：2010-06-01

申请号：US10579903

申请日：2004-11-30

申请人： Tomiji Tanaka ,  Kazuo Takahashi ,  Motonobu Takeya

发明人： Tomiji Tanaka ,  Kazuo Takahashi ,  Motonobu Takeya

IPC分类号： H01S5/18 ,  H01S5/16

CPC分类号： H01S5/141 ,  H01S5/02212 ,  H01S5/02248 ,  H01S5/02296 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/0655 ,  H01S5/2219 ,  H01S5/32341

摘要： An external cavity type semiconductor laser that has a larger output and a more excellent single mode characteristic than a conventional external cavity type semiconductor laser is provided. The external cavity type semiconductor laser has a laser diode 11, a window glass 16, a grating, and a lens. The external cavity type semiconductor laser has several modifications over the conventional one. A first modification is that the window glass 16 is inclined to a beam emission surface 19 of a laser diode 11 for a predetermined angle. A second modification is that arrangements of the laser diode 11 and so forth are adjusted so that a S wave reaches the grating. A third modification is that when an output power of the laser diode 11 is 45 mW or less, a kink is suppressed. The other modifications are that a reflectance of a beam emission surface of the laser diode 11, a numerical aperture of the lens, an external cavity length, and a reflectance of a first order beam of the grating are optimized to their proper values.

摘要翻译： 提供具有比常规的外腔型半导体激光器更大的输出和更优异的单模特性的外腔型半导体激光器。 外腔型半导体激光器具有激光二极管11，窗玻璃16，光栅和透镜。 外腔型半导体激光器与常规半导体激光器相比有若干种修改。 第一修改是窗玻璃16以预定角度倾斜于激光二极管11的光束发射表面19。 第二修改是调整激光二极管11等的配置，使得S波到达光栅。 第三变形例是当激光二极管11的输出功率为45mW以下时，抑制了扭结。 其他修改是将激光二极管11的光束发射表面的反射率，透镜的数值孔径，外部空腔长度和光栅的一阶光束的反射率优化为其适当的值。

公开(公告)号：US20090316239A1

公开(公告)日：2009-12-24

申请号：US12475098

申请日：2009-05-29

申请人： Hitoshi OKADA ,  Masaaki Hara ,  Satoru Seko ,  Tomiji Tanaka ,  Yoshiki Okamoto

发明人： Hitoshi OKADA ,  Masaaki Hara ,  Satoru Seko ,  Tomiji Tanaka ,  Yoshiki Okamoto

IPC分类号： G03H1/08

CPC分类号： G11B7/00781 ,  G11B7/0065

摘要： A recording apparatus includes a drive unit that rotationally drives a holographic recording medium including a recording layer and a track forming layer that includes guide tracks formed at constant intervals in a radial direction, where a signal beam and a reference beam are emitted to the recording layer so that a hologram is recorded in accordance with the signal beam, a signal beam generating unit, a reference beam generating unit, a recording unit that emits the signal beam and reference beam into the medium and records the hologram, a rotation control unit that controls the drive unit so that the medium is rotationally driven at a constant rotation speed, and a recording control unit that selects some of the guide tracks so that radial-direction recording intervals of the holograms are statistically decreased towards the outer periphery and controls the recording unit to record the holograms along the selected tracks.

摘要翻译： 记录装置包括：驱动单元，其旋转地驱动包括记录层的全息记录介质和轨道形成层，该轨道形成层包括沿径向恒定间隔形成的导轨，其中信号光束和参考光束被发射到记录层 使得根据信号束记录全息图，信号光束产生单元，参考光束产生单元，将信号光束和参考光束发射到介质中并记录全息图的记录单元，控制旋转控制单元 所述驱动单元使得所述介质以恒定的旋转速度被旋转地驱动;以及记录控制单元，其选择一些所述导轨，使得所述全息图的径向记录间隔向外周界统计地减小，并且控制所述记录单元 沿所选轨道记录全息图。

公开(公告)号：US20080198432A1

公开(公告)日：2008-08-21

申请号：US12032536

申请日：2008-02-15

申请人： Tomiji Tanaka ,  Masaaki Hara ,  Kazutatsu Tokuyama ,  Satoru Seko ,  Shinji Yamada ,  Hitoshi Okada

发明人： Tomiji Tanaka ,  Masaaki Hara ,  Kazutatsu Tokuyama ,  Satoru Seko ,  Shinji Yamada ,  Hitoshi Okada

IPC分类号： G03H1/22 ,  G02F1/137

CPC分类号： G11B7/1362 ,  G03H1/22 ,  G03H1/265 ,  G03H2001/0441 ,  G03H2210/562 ,  G11B7/0065 ,  G11B7/1369

摘要： A hologram reproducing apparatus includes a first reference light path leading laser light from a laser light source so that a hologram recording medium is irradiated with first reference light; a diffracted light path leading diffracted light, generated from the hologram recording medium by irradiation with the first reference light, to a light receiving element having a plurality of pixels; and a second reference light path leading second reference light, having the same polarization direction as that of the diffracted light, from the laser light source to the light receiving element. The second reference light path is provided with a phase modulating element so that the phase difference between the diffracted light and the second reference light in a light receiving surface of the light receiving element is adjusted within a predetermined range.

摘要翻译： 全息图再现装置包括：第一参考光路，其引导来自激光光源的激光，使得全息图记录介质用第一参考光照射; 通过照射第一参考光从全息图记录介质产生的衍射光的衍射光路到具有多个像素的光接收元件; 以及第二参考光路，其将具有与衍射光的偏振方向相同的偏振方向的第二参考光从激光光源引导到光接收元件。 第二参考光路设置有相位调制元件，使得光接收元件的光接收表面中的衍射光和第二参考光之间的相位差被调节在预定范围内。

公开(公告)号：US4878132A

公开(公告)日：1989-10-31

申请号：US184783

申请日：1988-04-22

申请人： Katsuhisa Aratani ,  Ariyoshi Nakaoki ,  Tomiji Tanaka

发明人： Katsuhisa Aratani ,  Ariyoshi Nakaoki ,  Tomiji Tanaka

IPC分类号： G11B11/105

CPC分类号： G11B11/10519 ,  G11B11/10506 ,  G11B11/10591 ,  Y10S428/928 ,  Y10T428/12632 ,  Y10T428/12951

摘要： A thermomagnetic recording method is disclosed using a thermomagnetic recording medium where first, second and third magnetic thin films each formed of rare-earth and transition metals are sequentially superposed to form layers in a magnetically coupled manner. The recording is carried out by heating the thermomagnetic recording medium under a predetermined magnetic field perpendicular to the film plane thereof while selectively modulating, in accordance with data to be recorded, a first heating state at a first temperature T1 substantially above the Curie point Tc1 of the first magnetic thin film and adequate to hold the sublattice magnetization of the transition metal of the second magnetic thin film in a predetermined direction, and a second heating state at a second temperature T2 substantially above the Curie point Tc1 and adequate to invert the sublattice magnetization of the transition metal of the second magnetic thin film to the reverse of the predetermined direction. In a cooling step subsequent to the first and second heating states, maintaining the sublattice magnetization of the third magnetic thin film in a predetermined direction while orienting the sublattice magnetization of said second magnetic thin film to be directionally coincident with that of the third magnetic thin film at a temperature below the first temperature T1 without directionally inverting the sublattice magnetization of the first magnetic thin film.

公开(公告)号：US08416480B2

公开(公告)日：2013-04-09

申请号：US12032536

申请日：2008-02-15

申请人： Tomiji Tanaka ,  Masaaki Hara ,  Kazutatsu Tokuyama ,  Satoru Seko ,  Shinji Yamada ,  Hitoshi Okada

发明人： Tomiji Tanaka ,  Masaaki Hara ,  Kazutatsu Tokuyama ,  Satoru Seko ,  Shinji Yamada ,  Hitoshi Okada

IPC分类号： G03H1/26 ,  G03H1/10

CPC分类号： G11B7/1362 ,  G03H1/22 ,  G03H1/265 ,  G03H2001/0441 ,  G03H2210/562 ,  G11B7/0065 ,  G11B7/1369

摘要： A hologram reproducing apparatus includes a first reference light path leading laser light from a laser light source so that a hologram recording medium is irradiated with first reference light; a diffracted light path leading diffracted light, generated from the hologram recording medium by irradiation with the first reference light, to a light receiving element having a plurality of pixels; and a second reference light path leading second reference light, having the same polarization direction as that of the diffracted light, from the laser light source to the light receiving element. The second reference light path is provided with a phase modulating element so that the phase difference between the diffracted light and the second reference light in a light receiving surface of the light receiving element is adjusted within a predetermined range.

摘要翻译： 全息图再现装置包括：第一参考光路，其引导来自激光光源的激光，使得全息图记录介质用第一参考光照射; 通过照射第一参考光从全息图记录介质产生的衍射光的衍射光路到具有多个像素的光接收元件; 以及第二参考光路，其将具有与衍射光的偏振方向相同的偏振方向的第二参考光从激光光源引导到光接收元件。 第二参考光路设置有相位调制元件，使得光接收元件的光接收表面中的衍射光和第二参考光之间的相位差被调节在预定范围内。

公开(公告)号：US20130085363A1

公开(公告)日：2013-04-04

申请号：US13616185

申请日：2012-09-14

申请人： Seiji Wada ,  Takeshi Yamazaki ,  Natsuki Kimura ,  Yoshihiro Wakita ,  Koji Kashima ,  Tomiji Tanaka ,  Mitsuhiro Nakamura ,  Tatsumi Sakaguchi ,  Haruhiko Soma ,  Takuro Yamamoto

发明人： Seiji Wada ,  Takeshi Yamazaki ,  Natsuki Kimura ,  Yoshihiro Wakita ,  Koji Kashima ,  Tomiji Tanaka ,  Mitsuhiro Nakamura ,  Tatsumi Sakaguchi ,  Haruhiko Soma ,  Takuro Yamamoto

IPC分类号： A61B5/0478

CPC分类号： A61B5/0478 ,  A61B5/6803 ,  A61B5/6814 ,  A61B5/6843

摘要： An electroencephalographic headset includes: a supporter that includes expanding and contracting wires each having expansion and contraction properties and is to be attached to a head of a user by expansion and contraction of each of the expanding and contracting wires; and a plurality of electrodes that are provided to the supporter in defined placement.

摘要翻译： 脑电耳机包括：支撑件，其包括每个具有伸缩性能的伸缩线，并且通过每个伸缩线的伸缩来附接到使用者的头部; 以及以规定的位置设置在支撑体上的多个电极。

公开(公告)号：US20080180659A1

公开(公告)日：2008-07-31

申请号：US11742800

申请日：2007-05-01

申请人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

发明人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

IPC分类号： G01J3/00

CPC分类号： G01J9/00 ,  G01J9/0246 ,  G01J2009/0234 ,  H01S5/0014 ,  H01S5/0071 ,  H01S5/0612 ,  H01S5/0654 ,  H01S5/141 ,  H01S5/143

摘要： A laser system includes a laser diode that oscillates in a multi-mode and has characteristics in which its oscillation wavelength varies with temperature, a grating that receives a light beam emitted from the laser diode and returns a diffracted beam to the laser diode, a mechanism that changes the wavelength of the diffracted beam returned to the laser diode, a wavelength detector that detects the wavelength of an output beam which is the same as that of the diffracted beam returned to the laser diode, a temperature regulator that maintains the laser diode at a predetermined temperature, and a control unit that controls the mechanism so that the output beam having a predetermined wavelength is output and controls the temperature regulator so that the laser diode oscillates at the predetermined wavelength.

摘要翻译： 激光系统包括以多模振荡并具有其振荡波长随温度变化的特性的激光二极管，接收从激光二极管发射的光束并将衍射光束返回到激光二极管的光栅，机构 其改变了返回到激光二极管的衍射光束的波长，检测与返回到激光二极管的衍射光束相同的输出光束的波长的波长检测器，将激光二极管保持在 以及控制单元，其控制机构，使得具有预定波长的输出光束被输出并控制温度调节器，使得激光二极管以预定波长振荡。

公开(公告)号：US07085028B2

公开(公告)日：2006-08-01

申请号：US10630694

申请日：2003-07-31

申请人： Tomiji Tanaka ,  Mikio Sugiki ,  Koji Ishioka ,  Shigeru Yamazaki

发明人： Tomiji Tanaka ,  Mikio Sugiki ,  Koji Ishioka ,  Shigeru Yamazaki

IPC分类号： G03H1/04

CPC分类号： G11B7/1381 ,  G03H1/02 ,  G03H1/0486 ,  G03H1/26 ,  G03H2001/0204 ,  G03H2210/12 ,  G03H2210/22 ,  G03H2225/24 ,  G03H2225/32 ,  G11B7/0065 ,  G11B7/1353

摘要： A hologram recording apparatus, a hologram recording method and a hologram recording medium reduce noise components generated by a phase modulation type spatial light modulator, thus permitting improved integrity of data to be achieved. A light beam whose diffraction state has been controlled by a diffraction control element is condensed on a hologram recording medium. With this arrangement, a predetermined diffracted light component is removed from a diffracted light beam emergent from the diffraction control element when recording information, which is based on the diffraction state controlled by the diffraction control element, in a hologram recording medium. Thus, noise components when information is recorded can be reduced.

摘要翻译： 全息记录装置，全息图记录方法和全息图记录介质减少由相位调制型空间光调制器产生的噪声分量，从而可以改善要实现的数据的完整性。 其衍射状态已由衍射控制元件控制的光束在全息图记录介质上被聚集。 利用这种布置，当在全息图记录介质中记录基于由衍射控制元件控制的衍射状态的信息时，从衍射控制元件出射的衍射光束去除预定衍射光分量。 因此，可以减少当记录信息时的噪声分量。