公开(公告)号：US5583840A

公开(公告)日：1996-12-10

申请号：US365053

申请日：1994-12-28

申请人： Hiroyuki Minemura ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Kato ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

发明人： Hiroyuki Minemura ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Kato ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

IPC分类号： G06F3/08 ,  G11B7/00 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/24 ,  G11B7/258 ,  G11B23/03

CPC分类号： G06K19/044 ,  G11B23/0316 ,  G11B23/032 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/24

摘要： An optical information handling device in which reflectivity of the conventional reproduction-only type optical disk is lowered to 60% or less and is made equal to the reflectivity of write-once type and rewritable type optical disks, whereby interchangeability in these of these disks is possible.

摘要翻译： 将传统的再现型光盘的反射率降低到60％以下并使其与一次写入式和可重写型光盘的反射率相等的光信息处理装置，由此这些光盘的这些盘的互换性是 可能。

公开(公告)号：US5432644A

公开(公告)日：1995-07-11

申请号：US249659

申请日：1994-05-26

申请人： Fumio Tajima ,  Hiroshi Kanazawa ,  Hiroshi Katayama ,  Kazuo Ohnishi ,  Tadashi Takahashi ,  Nobuyoshi Mutoh ,  Shigeki Morinaga ,  Nobuyoshi Tsuboi ,  Hideki Nihei

发明人： Fumio Tajima ,  Hiroshi Kanazawa ,  Hiroshi Katayama ,  Kazuo Ohnishi ,  Tadashi Takahashi ,  Nobuyoshi Mutoh ,  Shigeki Morinaga ,  Nobuyoshi Tsuboi ,  Hideki Nihei

IPC分类号： G11B19/20 ,  G11B25/04 ,  H02K1/14 ,  H02K7/14 ,  H02K16/00 ,  H02K21/16 ,  H02K29/00 ,  H02K41/03 ,  G11B5/016

CPC分类号： G11B25/043 ,  G11B19/20 ,  H02K1/14 ,  H02K1/146 ,  H02K16/00 ,  H02K21/16 ,  H02K7/14 ,  H02K2201/15 ,  H02K41/03

摘要： A motor has a stator and a rotor, the stator having cores and drive coils which generate magnetic fields for rotating the rotor. The stator also has a yoke surrounding the rotor and the rotor is positioned such that it is closer to one part of the outer periphery of the yoke than another part of the outer periphery of the yoke. Such a motor is particularly suitable for use in a disk drive unit as a spindle motor for rotating the disk. Then an actuator for moving a head may be located adjacent the part of the outer periphery of the yoke which is closest to the rotor. This permits the head to approach closely the axis of rotation of the disk without the spindle motor interferring with the movement of the head. The continuous yoke prevents magnetic flux leakage from the spindle motor interferring with the actuator. The actuator may itself have a yoke integral with the yoke of the spindle motor, and/or other components in common.

摘要翻译： 电动机具有定子和转子，定子具有产生用于旋转转子的磁场的磁芯和驱动线圈。 定子还具有围绕转子的轭，并且转子被定位成使得其比轭的外周的另一部分更靠近轭的外周的一部分。 这样的电动机特别适用于作为用于旋转盘的主轴电动机的盘驱动单元。 然后，用于移动头部的致动器可以位于最靠近转子的轭的外周的部分附近。 这允许头靠近盘的旋转轴线，而主轴马达干涉头部的运动。 连续的轭防止主轴电机的磁通量泄漏与执行机构的干扰。 致动器本身可以具有与主轴电动机的轭架成一体的轭和/或共同的其它部件。

公开(公告)号：US5110792A

公开(公告)日：1992-05-05

申请号：US431231

申请日：1989-11-03

申请人： Takahiro Nakayama ,  Kunihiro Tamahashi ,  Moriaki Fuyama ,  Hiroyuki Minemura ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroaki Koyanagi

发明人： Takahiro Nakayama ,  Kunihiro Tamahashi ,  Moriaki Fuyama ,  Hiroyuki Minemura ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroaki Koyanagi

IPC分类号： G02F1/01

CPC分类号： G02F1/01 ,  Y10S505/702 ,  Y10S505/828 ,  Y10S505/848

摘要： An optical modulation method and apparatus uses superconductive oxide material for the optical modulation element. The current, magnetic field, temperature or pressure applied to the superconductive oxide material is varied so as to induce a superconduction-normalconduction transition, and the resulting variation in optical characteristics such as the reflectivity, transmissivity or refractive index of the superconductive oxide material modulate the input light. The method and apparatus are fast in operation and simple in structure. The method and apparatus also detect the variation in the current, magnetic field, temperature or pressure as a change in the reflectivity, transmissivity or refractive index of the superconductive oxide material on the basis of a superconduction-normalconduction transition.

摘要翻译： 光调制方法和装置使用超导氧化物材料作为光调制元件。 改变施加到超导氧化物材料的电流，磁场，温度或压力，以便引起超导 - 正常的导电转变，并且由此导致的超导氧化物材料的光学特性如反射率，透射率或折射率的变化调制 输入光。 该方法和装置操作简单，结构简单。 该方法和装置还根据超导 - 正常的导电转变，检测电流，磁场，温度或压力的变化，作为超导氧化物材料的反射率，透射率或折射率的变化。

公开(公告)号：US4937808A

公开(公告)日：1990-06-26

申请号：US151567

申请日：1988-02-02

申请人： Satoshi Shimada ,  Shinji Ohyama ,  Manabu Sato ,  Masahiko Ibamoto ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Norifumi Miyamoto ,  Hiroyuki Minemura ,  Hiroaki Koyanagi

发明人： Satoshi Shimada ,  Shinji Ohyama ,  Manabu Sato ,  Masahiko Ibamoto ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Norifumi Miyamoto ,  Hiroyuki Minemura ,  Hiroaki Koyanagi

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02B6/124 ,  G11B7/09 ,  G11B7/12 ,  G11B7/135

CPC分类号： G02B6/124 ,  G02B6/12004 ,  G02B6/1245 ,  G11B7/0912 ,  G11B7/1245

摘要： An optical head including a substrate, an optical waveguide formed on the substrate, a light source formed on a portion of the substrate, a collimator lens for converting light from the light source into parallel light rays, an objective lens for focusing light from the collimator lens onto a recording medium and for converting reflected light from the recording medium into parallel light rays, a beam splitter for dividing light from the objective lens into two parts to send out one of the parts in a predetermined direction, a coupling lens for focusing light from the beam splitter on a position, and a photodetector for detecting light from the coupling lens, is disclosed, in which the collimator lens, the objective lens, the beam splitter, the coupling lens and the photodetector are integrated on the substrate, and the collimator lens or an objective lens supporting part is made flexible to vary the position of the focus of the collimator lens or objective lens by piezo-electric elements.

公开(公告)号：US4862440A

公开(公告)日：1989-08-29

申请号：US098969

申请日：1987-09-09

申请人： Norifumi Miyamoto ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Satoshi Shimada ,  Hiroshi Sasaki ,  Hiroaki Koyanagi ,  Hiroyuki Minemura

发明人： Norifumi Miyamoto ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Satoshi Shimada ,  Hiroshi Sasaki ,  Hiroaki Koyanagi ,  Hiroyuki Minemura

IPC分类号： G11B7/08 ,  G11B7/085 ,  G11B7/09

CPC分类号： G11B7/08547 ,  G11B7/1245 ,  G11B7/1369 ,  G11B7/0912

摘要： An optical head is disclosed, in which a plate-shaped optical wave guide comprises an optical system including a collimator lens, a beam splitter and an objective lens; a laser light source for emitting a laser light in the form of a light beam which is to be impinged on an optical recording medium; and electro-acoustic transducers are disposed between the beam splitter and the objective lens, the transducers being adapted to be driven by the outer electrical signal for producing surface acoustic waves in the optical wave guide, thereby establishing a condensation and rarefaction distribution in refractive index in the optical wave guide which distribution influences the direction of transmission and the degree of focusing of the light beam passing therethrough so that regulation of the tracking and the focal length can be effected without any mechanical movements.

摘要翻译： 公开了一种光学头，其中板状光波导包括包括准直透镜，分束器和物镜的光学系统; 用于发射将要照射在光学记录介质上的光束形式的激光的激光源; 并且电声换能器设置在分束器和物镜之间，换能器适于由外部电信号驱动，以在光波导中产生表面声波，由此在折射率中建立冷凝和稀疏分布 分布影响透射方向的光波导和通过其的光束的聚焦程度，从而可以在没有任何机械运动的情况下实现跟踪调节和焦距。

公开(公告)号：US5317556A

公开(公告)日：1994-05-31

申请号：US622609

申请日：1990-12-05

申请人： Nobuyoshi Tsuboi ,  Yoshio Sato ,  Hiroyuki Minemura ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Katou ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

发明人： Nobuyoshi Tsuboi ,  Yoshio Sato ,  Hiroyuki Minemura ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Katou ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

IPC分类号： G11B7/00 ,  G11B7/0033 ,  G11B7/004 ,  G11B7/0055 ,  G11B7/08 ,  G11B7/12 ,  G11B7/135 ,  G11B7/24 ,  G11B23/03

CPC分类号： G11B23/0316 ,  G11B7/12 ,  G11B7/135 ,  G11B7/24 ,  G11B7/0033

摘要： There is provided a compact and thin optical disk unit as a memory unit suitable for a portable computer such as a book type computer and a portable recording/reproducing apparatus. In the optical disk unit, the diameter of an objective lens is limited and a beam shaping prism, a beam splitter, a mirror and a 1/4 wavelength plate are formed into a unitary structure to make easy the optical axis adjustment of an optical head and ensure highly accurate assembling.

摘要翻译： 提供了一种紧凑而细的光盘单元，作为适用于诸如书本型计算机和便携式记录/再现装置的便携式计算机的存储单元。 在光盘单元中，物镜的直径受到限制，光束整形棱镜，光束分离器，反射镜和1/4波片形成为一体的结构，使光头的光轴调整变得容易 并确保高精度的组装。

公开(公告)号：US5274612A

公开(公告)日：1993-12-28

申请号：US742491

申请日：1991-08-05

申请人： Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Kato ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

发明人： Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Kato ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

IPC分类号： G11B7/0033 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/24 ,  G11B11/105 ,  G11B19/00 ,  G11B23/03 ,  G11B13/04

CPC分类号： G11B7/24 ,  G11B11/10506 ,  G11B11/10517 ,  G11B11/10521 ,  G11B11/10523 ,  G11B11/10552 ,  G11B11/10584 ,  G11B11/10595 ,  G11B19/00 ,  G11B23/0316 ,  G11B23/0321 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/00454 ,  G11B7/00557

摘要： The information processor uses a portable memory which is able to be overwritten by laser power modulation system. The memory includes a disk type recording medium incorporated rotatably in a thin case, and carries out write/read/erase by means of a first magnetic field application device, a second magnetic field application device, and an optical head radiating light through this case.

摘要翻译： 信息处理器使用能够被激光功率调制系统覆盖的便携式存储器。 存储器包括可旋转地装在薄壳中的盘式记录介质，并通过第一磁场施加装置，第二磁场施加装置和通过这种情况照射光的光头进行写入/读取/擦除。

公开(公告)号：US4718053A

公开(公告)日：1988-01-05

申请号：US795313

申请日：1985-11-06

申请人： Yoshio Sato ,  Satoshai Shimada ,  Hiroshi Sasaki ,  Norifumi Miyamoto ,  Nobuyoshi Tsuboi ,  Hideki Nihei ,  Ryuji Watanabe ,  Atsumi Watanabe ,  Tetsuo Ito ,  Hiroaki Koyanagi

发明人： Yoshio Sato ,  Satoshai Shimada ,  Hiroshi Sasaki ,  Norifumi Miyamoto ,  Nobuyoshi Tsuboi ,  Hideki Nihei ,  Ryuji Watanabe ,  Atsumi Watanabe ,  Tetsuo Ito ,  Hiroaki Koyanagi

IPC分类号： G11B7/0055 ,  G11B7/013 ,  G11B7/09 ,  G11B7/135 ,  G11B7/24085 ,  G11B7/243 ,  G11B7/257 ,  G11B7/095 ,  G11B7/24

CPC分类号： G11B7/257 ,  G11B7/00557 ,  G11B7/135 ,  G11B7/24085 ,  G11B7/243 ,  G11B2007/13727 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B7/0909

摘要： The present invention employs as a recording medium a metal or alloy which exhibits an intercrystalline transition before and after writing. In the present invention, two light beams of unequal wavelengths are used so as to write information with the light beam of the longer wavelength and to erase information with the light beam of the shorter wavelength. In changing a written content, a wavelength with which the reflection rate of the recording medium increases is used.

摘要翻译： 本发明在记录介质之前和之后使用表现出晶间转变的金属或合金作为记录介质。 在本发明中，使用两个不等波长的光束，以便用较长波长的光束写入信息，并用较短波长的光束擦除信息。 在改变书写内容时，使用记录介质的反射率增加的波长。

公开(公告)号：US5484686A

公开(公告)日：1996-01-16

申请号：US205768

申请日：1994-03-04

申请人： Yoshihito Maeda ,  Isao Ikuta ,  Hisashi Andoh ,  Masaichi Nagai ,  Yoshimi Katoh ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura

发明人： Yoshihito Maeda ,  Isao Ikuta ,  Hisashi Andoh ,  Masaichi Nagai ,  Yoshimi Katoh ,  Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura

IPC分类号： B41M5/26 ,  G11B7/00 ,  G11B7/003 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/24 ,  G11B7/243 ,  G11B7/30 ,  G03C1/72

CPC分类号： G11B7/257 ,  G11B7/00557 ,  G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/2531 ,  G11B7/2585 ,  G11B7/2595 ,  Y10S430/146

摘要： The present invention provides an optical recording medium using an amorphous-crystalline phase-change for recording and erasing, wherein reflectivity of an optical recording medium-constituting recording film in an amorphous state is larger than that of the optical recording medium-constituting recording film in a crystalline state, or wherein absorptivity of an optical recording medium-constituting recording film in an amorphous state is smaller than that of the optical recording medium-constituting recording film in a crystalline state.

公开(公告)号：US5371730A

公开(公告)日：1994-12-06

申请号：US618980

申请日：1990-11-28

申请人： Yoshihito Maeda ,  Isao Ikuta ,  Masaichi Nagai ,  Yoshimi Katou ,  Hisashi Andoh ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura ,  Tatsuya Sugita ,  Yoshio Sato ,  Yutaka Sugita

发明人： Yoshihito Maeda ,  Isao Ikuta ,  Masaichi Nagai ,  Yoshimi Katou ,  Hisashi Andoh ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura ,  Tatsuya Sugita ,  Yoshio Sato ,  Yutaka Sugita

IPC分类号： G11B23/02 ,  G11B7/00 ,  G11B7/005 ,  G11B7/24 ,  G11B11/10 ,  G11B11/105 ,  G11B23/03

CPC分类号： G11B7/24 ,  G11B23/0313

摘要： The invention relates to an optical memory in which an optical recording medium is built in a case, and also to a memory apparatus. Recording, reproducing and erasing operations are performed by irradiating light via a transparent portion of the case onto the built-in optical recording medium. The optical recording medium built in the case has face vibrations with respect to the case, because it is moved within the case. The present invention is characterized by employing such a construction for optically mitigating irregular fluctuation in reflectivity caused by this face vibration. In the optical memory of the present invention, the reflectivity fluctuation caused by an interference effect made between reflection light from the case and air, and also reflection light from the optical recording medium and air due to the relative deviation in the face vibrations, may be reduced by antireflection films provided in the case and the optical recording medium. In a memory apparatus of the present invention, the abovedescribed memory is mounted, the fluctuation in the reflectivity is monitored and laser power is varied in order to further mitigate the reflection vibrations.

摘要翻译： 本发明涉及一种光学存储器，其中光学记录介质被构建在壳体中，并且还涉及一种存储装置。 通过将壳体的透明部分照射到内置光学记录介质上来进行记录，再现和擦除操作。 因为在壳体内移动，所以内置在该壳体内的光记录介质面对壳体的振动。 本发明的特征在于采用这种结构，用于光学地减轻由这种面部振动引起的反射率的不规则波动。 在本发明的光学存储器中，由于来自壳体的反射光和空气之间的干涉效应引起的反射率波动，以及由于面部振动的相对偏离而来自光学记录介质和空气的反射光，可以是 由设置在壳体中的防反射膜和光记录介质所减少。 在本发明的存储装置中，安装上述存储器，监测反射率的波动，改变激光功率，以进一步减轻反射振动。