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1. 发明申请

US20080239927A1 OPTICAL HEAD DEVICE 审中-公开
标题翻译：光头设备
公开(公告)号：US20080239927A1
公开(公告)日：2008-10-02
申请号：US12058962
申请日：2008-03-31
申请人： Masaki Sasaki , Izumi Komatsu , Tadashi Takeda
发明人： Masaki Sasaki , Izumi Komatsu , Tadashi Takeda
IPC分类号： G11B7/135
CPC分类号： G11B7/1395 , G11B7/1275 , G11B7/1365 , G11B7/1378 , G11B7/13922 , G11B7/1398
摘要： An optical head device may include a polarization conversion element disposed on a common optical path for guiding a first and a second laser beams to a common objective lens for converting the first and the second laser beams to a circularly polarized light from a linearly polarized light, and a ½-wavelength plate disposed on an optical path of the first laser beam from a first laser light source to the common optical path for adjusting a polarization plane direction of the first laser beam. A polarization plane direction of the first laser beam incident on the polarization conversion element from the first laser light source is adjusted by the ½-wavelength plate in a direction so that the linearly polarized light is converted into the circularly polarized light.
摘要翻译：光学头装置可以包括设置在公共光路上的偏振转换元件，用于将第一和第二激光束引导到用于将第一和第二激光束从线性偏振光转换成圆偏振光的公共物镜，以及设置在第一激光束从第一激光光源到共用光路的光路上的1/2波长板，用于调整第一激光束的偏振面方向。入射到来自第一激光光源的偏振转换元件的第一激光束的偏振面方向通过1/2波长板沿使得线偏振光转换成圆偏振光的方向被调节。

2. 发明申请

US20080239929A1 OPTICAL HEAD DEVICE 审中-公开
标题翻译：光头设备
公开(公告)号：US20080239929A1
公开(公告)日：2008-10-02
申请号：US12059063
申请日：2008-03-31
申请人： Masaki Sasaki , Izumi Komatsu , Tadashi Takeda
发明人： Masaki Sasaki , Izumi Komatsu , Tadashi Takeda
IPC分类号： G11B7/135
CPC分类号： G11B7/22 , G11B7/123 , G11B7/1275 , G11B7/1365 , G11B7/1378 , G11B7/13922 , G11B7/1395 , G11B2007/0006
摘要： An optical head device may include a first laser light source, a second laser light source, a first parallel-plate type beam splitter for guiding a first and a second laser beams to a common objective lens, a second parallel-plate type beam splitter for guiding the second laser beam to the common objective lens, an aberration correction lens disposed between the first laser light source and the first beam splitter for correcting an aberration generated when the first laser beam transmits through the first beam splitter; and a light source unit which is structured by fixing the first laser light source and the aberration correction lens to a common holder in a state that a relative position between the first laser light source and the aberration correction lens is previously set.
摘要翻译：光学头装置可以包括第一激光光源，第二激光光源，用于将第一和第二激光束引导到公共物镜的第一平行板型分束器，用于将所述第二激光束引导到所述公共物镜;像差校正透镜，设置在所述第一激光光源和所述第一分束器之间，用于校正当所述第一激光束透过所述第一分束器时产生的像差; 以及光源单元，其通过在预先设定了第一激光光源与像差校正透镜之间的相对位置的状态下将第一激光光源和像差校正透镜固定到公共保持器而构成。

3. 发明授权

US5764442A Rotary head drum with shielding of heads and rotary transformers 失效
标题翻译：带磁头和旋转变压器屏蔽的旋转磁头鼓
公开(公告)号：US5764442A
公开(公告)日：1998-06-09
申请号：US770828
申请日：1996-12-20
申请人： Izumi Komatsu , Kiyohiko Ushiyama , Isao Ushikoshi , Masataka Kurata
发明人： Izumi Komatsu , Kiyohiko Ushiyama , Isao Ushikoshi , Masataka Kurata
IPC分类号： G11B5/11 , G11B5/53 , G11B5/52 , G11B5/10
CPC分类号： G11B5/53 , G11B5/11
摘要： A rotary cylinder device has a stationary cylinder with a stationary shaft; a rotary cylinder rotatably mounted on the stationary shaft, the rotary cylinder having an opening on one side thereof which is opposite to the other side where the rotary cylinder confronts with the stationary cylinder; a signal recording and reproducing magnetic head provided on the periphery of the rotary cylinder; an electric motor including: a rotor member of the electric motor, which is provided in the opening of the rotary cylinder and secured to the rotary cylinder; a stator member of the electric motor, which is confronted with the rotor member; and a first magnetic shielding member arranged to cover the opening of the rotary cylinder.
摘要翻译：旋转圆筒装置具有带固定轴的固定圆筒; 旋转圆筒可旋转地安装在固定轴上，旋转圆筒的一侧具有与旋转圆筒与固定圆筒相对的另一侧相对的开口; 设置在旋转圆筒的周边上的信号记录和再现磁头; 一种电动机，包括：电动机的转子构件，设置在旋转筒的开口中并固定到旋转缸; 电动机的定子构件，其面对转子构件; 以及布置成覆盖旋转圆筒的开口的第一磁屏蔽构件。

4. 发明授权

US06791824B2 Tape running apparatus, motor board, and capstan motor 失效
标题翻译：胶带运行装置，马达板和主导轴马达
公开(公告)号：US06791824B2
公开(公告)日：2004-09-14
申请号：US10170347
申请日：2002-06-14
申请人： Satoshi Tanimura , Hayato Naito , Izumi Komatsu , Nobuki Kokubo
发明人： Satoshi Tanimura , Hayato Naito , Izumi Komatsu , Nobuki Kokubo
IPC分类号： H05K702
CPC分类号： G11B33/121 , G11B15/28 , G11B25/06 , G11B33/122
摘要： A motor board 44 of a capstan motor, which is made of a metallic material offering good heat dissipation is provided in a tape running apparatus 1 in such a way as to face a circuit board 6 thereof. A motor drive IC 43, into which drive circuits for driving and controlling a capstan motor 4, a drum motor 2 and a loading motor 3 is incorporated, are mounted on this motor board 44. The circuit board 6 and the motor board are connected to each other by an inter-board connector 7. Further, electrical connection between the circuit board 6 and each of the motors 2, 3, and 4 is established through the motor board 44.
摘要翻译：在带式运行装置1中，以与电路板6相对的方式设置主导电动机的电动机板44，其由具有良好散热性的金属材料制成。在该马达板44上安装有用于驱动和控制主导马达4，鼓马达2和加载马达3的驱动电路的马达驱动IC 43。电路板6和马达板连接到另外，通过马达板44建立电路板6和马达2,3和4中的每一个之间的电连接。

5. 发明授权

US06495938B2 Brushless motor, method for operating brushless motor and method for manufacturing brushless motor 失效
标题翻译：无刷电动机，无刷电动机的运转方法及无刷电动机的制造方法
公开(公告)号：US06495938B2
公开(公告)日：2002-12-17
申请号：US09766492
申请日：2001-01-18
申请人： Hayato Naito , Izumi Komatsu , Satohi Tanimura
发明人： Hayato Naito , Izumi Komatsu , Satohi Tanimura
IPC分类号： H02K1100
CPC分类号： H02P6/085 , H02K5/225 , H02K11/33 , H02K11/40 , H02K29/08 , Y10S310/06
摘要： A direct PWM brushless motor has a motor main body mounted on a metal substrate and a motor drive circuit formed on a circuit substrate that is separated from the metal substrate. The motor drive circuit includes switching elements that are directly turned on and off, in which a switching pulse width for the switching elements is modulated to control current conducting through drive coils. The direct PWM brushless motor has a wiring cable connection device for connecting the motor main body and a fixed potential of the motor drive circuit, and a conduction device that conductively connects a metal plate portion of the metal substrate to the wiring cable connection device.
摘要翻译：直接PWM无刷电动机具有安装在金属基板上的电动机主体和形成在与金属基板分离的电路基板上的电动机驱动电路。马达驱动电路包括直接导通和截止的开关元件，其中开关元件的开关脉冲宽度被调制以控制通过驱动线圈导通的电流。直接PWM无刷电动机具有用于连接电动机主体和电动机驱动电路的固定电位的布线电缆连接装置，以及将金属基板的金属板部分导体连接到配线电缆连接装置的导电装置。

6. 发明授权

US5474386A Bearing system 失效
标题翻译：轴承系统
公开(公告)号：US5474386A
公开(公告)日：1995-12-12
申请号：US134317
申请日：1993-10-08
申请人： Izumi Komatsu
发明人： Izumi Komatsu
IPC分类号： H02K5/16 , F16C35/02 , F16C35/077 , G11B15/28 , H02K5/167 , F16C33/02
CPC分类号： F16C35/077 , F16C35/02 , G11B15/28
摘要： A bearing system comprises a motor shaft, bearings that support the shaft in a rotatable manner, a cylindrical bearing holder that holds the bearings and a cylindrical sleeve on the inner periphery of the bearing holder. The cylindrical sleeve is either made of metal of a material of high rigidity. The cylindrical sleeve, furthermore, is either integrally formed or press-fitted on the periphery of the bearing holder.
摘要翻译：轴承系统包括电动机轴，以可旋转的方式支撑轴的轴承，将轴承保持在轴承座的圆柱形轴承座和在轴承座的内周上的圆柱形套筒。圆柱形套筒由高刚性材料的金属制成。此外，圆柱形套筒一体地形成或压配合在轴承座的周边上。

7. 发明授权

US5453645A Electric motor 失效
标题翻译：电动马达
公开(公告)号：US5453645A
公开(公告)日：1995-09-26
申请号：US831683
申请日：1992-02-05
申请人： Izumi Komatsu
发明人： Izumi Komatsu
IPC分类号： H02K5/16 , G11B15/26 , G11B15/28 , H02K7/00
CPC分类号： G11B15/26 , G11B15/28 , H02K7/00
摘要： An electric motor comprises a substrate, a bearing holder rigidly fitted to the substrate, a shaft held by a bearing in the bearing holder and a rotor rigidly fitted to the shaft and arranged vis-a-vis a side of the substrate to rotate around the shaft. It also comprises a stationary member fitted to the bearing holder for holding components other than the motor included in an apparatus. Such an arrangement is particularly advantageous for a video tape recorder as it allows a simple and common standard to be implemented for mounting a tape feeding system, a signal retrieving system and other systems of the video tape recorder so that those components may be mounted with improved accuracy. Moreover, with such an arrangement, the number of components of a video tape recorder may be reduced to enhance manufacturing productivity and lower manufacturing cost.
摘要翻译：一种电动机包括基板，刚性地装配到基板上的轴承座，由轴承座中的轴承保持的轴和刚性地装配到轴的转子，并且相对于基板的一侧围绕轴。它还包括安装到轴承座的固定构件，用于保持包括在装置中的马达以外的部件。这种布置对于磁带录像机是特别有利的，因为它允许实现简单和通用的标准来安装磁带馈送系统，信号检索系统和录像机的其他系统，使得那些组件可以被改进准确性。此外，通过这样的布置，可以减少录像机的部件数量，以提高制造生产率和降低制造成本。

8. 发明授权

US06528916B1 Brushless motor 失效
标题翻译：无刷电机
公开(公告)号：US06528916B1
公开(公告)日：2003-03-04
申请号：US09640291
申请日：2000-08-16
申请人： Hayato Naito , Satoshi Tanimura , Izumi Komatsu
发明人： Hayato Naito , Satoshi Tanimura , Izumi Komatsu
IPC分类号： H02K1100
CPC分类号： H02K11/022 , H02K11/33 , H02K11/40 , H02P6/085
摘要： A pulse width modulated brushless electric motor employs a conductive metal screw or similar connector to create a common potential between the stator core and the iron substrate on which the motor drive circuit is mounted. By approximately setting the common potential to, for example, the base line of the power source and motor drive circuit, the noise electromagnetically generated by the pulse width modulation is suppressed.
摘要翻译：脉冲宽度调制无刷电动机采用导电金属螺丝或类似的连接器，在定子铁芯和安装有电动机驱动电路的铁基板之间形成公共电位。通过将公共电位设置为例如电源和电动机驱动电路的基线，抑制了通过脉宽调制而产生的噪声。

9. 发明授权

US06417587B1 Motor 失效
标题翻译：发动机
公开(公告)号：US06417587B1
公开(公告)日：2002-07-09
申请号：US08839166
申请日：1997-04-23
申请人： Izumi Komatsu , Hirohiko Katsuno
发明人： Izumi Komatsu , Hirohiko Katsuno
IPC分类号： H02K2908
CPC分类号： H02K29/08
摘要： A motor comprises a rotor having an index signal generating portion on a rotor magnet and a magnetic resistance sensor having a magneto-sensitive surface. The sensor is positioned on a stator of the motor facing the index signal generating portion of the rotor with a predetermined gap. The sensor functions to sense an index signal in the magnetic field generated by the index signal generating portion during the rotation of the rotor. A speed detection circuit is included for detecting the speed of the motor based on the detection results of the magnetic resistance sensor. The index generating portion forms a magnetic area in which a magnetic flux intensity in a plane orthogonal to the principal magnetic flux of the index signal generating portion is greater than the rated sensitivity of the magnetic resistance sensor. The magnetic resistance sensor is positioned on the magnetized area such that its magneto-sensitive surface is parallel to the plane. The magnetic resistance sensor has an output which is in a saturated state.
摘要翻译：电动机包括转子，转子具有转子磁体上的指标信号产生部分和具有磁敏表面的磁阻传感器。传感器位于电动机的定子上，面向转子的指标信号产生部分，并具有预定的间隙。传感器用于在转子旋转期间感测由指标信号产生部分产生的磁场中的指标信号。包括用于基于磁阻传感器的检测结果来检测电动机速度的速度检测电路。指标生成部形成与指标信号生成部的主磁通正交的面的磁通强度大于磁阻传感器的额定灵敏度的磁性区域。磁阻传感器位于磁化区域上，使其磁敏表面平行于平面。磁阻传感器具有处于饱和状态的输出。

10. 发明授权

US5041774A Brushless motor driving circuit 失效
标题翻译：无刷电机驱动电路
公开(公告)号：US5041774A
公开(公告)日：1991-08-20
申请号：US413973
申请日：1989-09-28
申请人： Izumi Komatsu
发明人： Izumi Komatsu
IPC分类号： H02P6/08 , H02K29/08 , H02P6/06
CPC分类号： H02P6/06
摘要： A brushless motor driving circuit includes a capacitor connected to an output terminal of a current feedback amplifier of the driving circuit to reduce electrical and mechanical noises.
摘要翻译：无刷马达驱动电路包括连接到驱动电路的电流反馈放大器的输出端子的电容器，以减少电气和机械噪声。

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