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1. 发明授权

US5446722A Information recording apparatus having magnetic shield means 失效
标题翻译：具有磁屏蔽装置的信息记录装置
公开(公告)号：US5446722A
公开(公告)日：1995-08-29
申请号：US132958
申请日：1993-10-07
申请人： Yoshiaki Kojima , Yasumitsu Wada , Masahiro Katsumura
发明人： Yoshiaki Kojima , Yasumitsu Wada , Masahiro Katsumura
IPC分类号： G11B7/00 , G11B7/004 , G11B7/26 , G11B9/10 , G11B19/20 , G11B23/00 , H01J37/20
CPC分类号： H01J37/3174 , B82Y10/00 , B82Y40/00 , G11B19/2009 , G11B23/0057 , G11B7/26 , H01J37/20 , H01J2237/0264 , H01J2237/20278
摘要： An information recording apparatus including a device for driving an optical-disk's master disk, an electron lens barrel for having an electron beam irradiate a recording surface of a disk, a translational device for producing, between the disk and the electron lens barrel, a relative movement in a direction parallel to the recording surface and a container for enclosing the elements of the apparatus adapted to support a vacuum atmosphere. The driving device includes a turn table 4, a spindle 14a for supporting the turn table, a motor 14 for driving the spindle, and a magnetic shield for preventing magnetic fields of the motor from leaking outward. The motor is enclosed in the shield to prevent its magnetic fields from affecting the electron beam, which makes it possible to record information with high accuracy. The use of the motor as a drive source realizes easier and more responsive control of the turn table than that in the prior art.
摘要翻译：一种信息记录装置，包括用于驱动光盘的主盘的装置，具有照射盘的记录表面的电子束的电子透镜镜筒，用于在光盘和电子镜头镜筒之间产生的平移装置，在与记录表面平行的方向上的运动和用于封闭适于支撑真空气氛的装置的元件的容器。驱动装置包括转台4，用于支撑转台的主轴14a，用于驱动主轴的电动机14和用于防止电动机的磁场向外泄漏的磁屏蔽。电机被封闭在屏蔽中，以防止其磁场影响电子束，这样可以高精度地记录信息。使用电动机作为驱动源实现了与现有技术相比，转台更容易和更灵敏的控制。

2. 发明授权

US07276692B2 Beam adjusting sample, beam adjusting method and beam adjusting device 有权
标题翻译：光束调整样品，光束调节方法和光束调节装置
公开(公告)号：US07276692B2
公开(公告)日：2007-10-02
申请号：US10679416
申请日：2003-10-07
申请人： Masahiro Katsumura , Yoshiaki Kojima , Yasumitsu Wada , Hiroaki Kitahara
发明人： Masahiro Katsumura , Yoshiaki Kojima , Yasumitsu Wada , Hiroaki Kitahara
IPC分类号： H01J37/28
CPC分类号： H01J37/28 , H01J2237/21
摘要： A beam adjusting sample having a flat surface being like a plate and having two edges orthogonal to each other is employed. A beam is applied to the beam adjusting sample to detect an amount of the beam passing through the beam adjusting sample. The beam vertically scans the two edges.
摘要翻译：采用具有平板表面并具有彼此正交的两个边缘的平坦表面的光束调节样品。光束被施加到光束调整样本以检测通过光束调节样本的光束的量。光束垂直扫描两个边缘。

3. 发明授权

US06996043B2 Optical head apparatus 失效
标题翻译：光头设备
公开(公告)号：US06996043B2
公开(公告)日：2006-02-07
申请号：US09813306
申请日：2001-03-21
申请人： Osamu Kasono , Yoshiaki Kojima , Yasumitsu Wada
发明人： Osamu Kasono , Yoshiaki Kojima , Yasumitsu Wada
IPC分类号： G11B7/085
CPC分类号： G11B7/1387 , G11B7/0927 , G11B7/0948 , G11B7/122
摘要： Preceding to the reading out of the recording information of the optical disk by the pick-up, the height of the foreign material existing at the light converging position on the information reading surface is detected by the detector, and when the height of the foreign material is higher than the floating height h of the SIL, the magnetic field is generated by applying the control current corresponding to the height of the foreign material to the coil as the magnetic field generator at the timing before the foreign material is moved to the information reading position of the pick-up by the rotation of the optical disk. Then, when the magnetic field is provided to the magnetic substance fixedly holding the SIL which is floating, the movement operation to separate the SIL to the higher position than the height of the foreign material from the information reading surface together with the magnetic substance, is conducted.
摘要翻译：在通过拾取器读出光盘的记录信息之前，通过检测器检测存在于信息读取表面上的聚光位置的异物的高度，并且当异物的高度高于SIL的浮动高度h时，通过在外来材料移动到信息读取之前的时刻将与异物的高度相对应的控制电流作为磁场发生器施加到线圈，产生磁场通过光盘的旋转拾取拾取位置。然后，当将磁场提供给固定保持浮动的SIL的磁性体时，将SIL与磁性物质一起从信息读取表面分离出高于异物的高度的位置的移动操作是进行。

4. 发明授权

US06954273B2 Laser-based measuring apparatus for measuring an axial run-out in a cylinder of rotation and method for measuring the same utilizing opposing incident measuring light beams 失效
标题翻译：用于测量旋转圆柱体中的轴向跳动的基于激光的测量装置及利用相对的入射测量光束测量其的方法
公开(公告)号：US06954273B2
公开(公告)日：2005-10-11
申请号：US10043260
申请日：2002-01-14
申请人： Hiroaki Kitahara , Yoshiaki Kojima , Yasumitsu Wada
发明人： Hiroaki Kitahara , Yoshiaki Kojima , Yasumitsu Wada
IPC分类号： G01B11/00 , G01B9/02 , G01S7/48 , G01S17/88
CPC分类号： G01B9/02007 , G01B9/02003 , G01B9/02021 , G01B9/02045 , G01B2290/70
摘要： A laser-based measuring apparatus divides a light beam from a laser light source into at least two light beams, passes the light beams through different optical paths from each other, recombines the light beams, has the light beams interfere with each other to generate interfered light, opto-electrically transduces the interfered light to an optical frequency, and measures the amount of travel of an object which changes an optical path length of a portion of an optical path based on the optical frequency. The measuring apparatus has a portion for generating at least two measuring light beams from the laser light source, two reflection planes included in an object moving on a measuring axis, arranged back-to-back to each other on the measuring axis, and an opposing incident optical system for directing the measuring light beams into the reflection planes, respectively, such that the measuring light beams oppose to each other on the measuring axis.
摘要翻译：基于激光的测量装置将来自激光光源的光束分成至少两个光束，使光束彼此通过不同的光路，使光束复合，使光束彼此干涉，产生受干扰的将光被光电转换成光频，并且测量基于光频率改变光路的一部分的光路长度的物体的行进量。测量装置具有用于从激光光源产生至少两个测量光束的部分，包括在测量轴上移动的物体中的两个反射平面，其在测量轴线上彼此背对背地相对配置，并且相对入射光学系统，用于分别将测量光束引导到反射平面中，使得测量光束在测量轴线上彼此相对。

5. 发明授权

US5281978A Object carriage system 失效
标题翻译：对象支架系统
公开(公告)号：US5281978A
公开(公告)日：1994-01-25
申请号：US786294
申请日：1991-11-01
申请人： Yoshiaki Kojima , Yasumitsu Wada
发明人： Yoshiaki Kojima , Yasumitsu Wada
IPC分类号： F16F15/02 , B23Q11/00 , F16F7/10 , G05D19/02 , G11B7/09 , G11B7/26 , G11B33/08 , H04N1/21
CPC分类号： G11B7/261 , B23Q11/0035 , F16F7/1011 , G11B7/0946
摘要： An object carriage system is developed which can suppress any vibration even if an object to be carried contains a source of vibration. The object carriage system comprises a carriage for carrying an object, a resilient supporting means for resiliently supporting the carriage over the floor, a vibration suppressing means for suppressing the vibration of the carriage relative to the floor, acceleration detecting means for detecting an acceleration of the carriage and producing a corresponding acceleration signal, a mass movably supported by the carriage, and driving means for driving the mass in the direction in which the acceleration takes place in accordance with the acceleration signal.
摘要翻译：开发了一种能够抑制任何振动的物体托架系统，即使被携带的物体包含振动源。物体托架系统包括用于承载物体的托架，用于将托架弹性地支撑在地板上的弹性支撑装置，用于抑制托架相对于地板的振动的振动抑制装置，用于检测托架的加速度的加速度检测装置并且产生相应的加速度信号，由滑架可移动地支撑的质量，以及用于根据加速度信号在加速度发生方向上驱动质量的驱动装置。

6. 发明授权

US4477699A Mechanical two-way loudspeaker 失效
标题翻译：机械双向扬声器
公开(公告)号：US4477699A
公开(公告)日：1984-10-16
申请号：US356702
申请日：1982-03-10
申请人： Yasumitsu Wada , Isao Yamamuro
发明人： Yasumitsu Wada , Isao Yamamuro
IPC分类号： H04R1/24 , H04R7/02 , H04R7/12 , H04R9/06
CPC分类号： H04R7/122 , H04R9/063
摘要： A mechanical two way loudspeaker includes a low frequency diaphragm arranged coaxially with one another which are driven by the same voice coil. In order to flatten the sound pressure versus frequency characteristic of the loud speaker in the high frequency range, the low frequency diaphragm is provided with a flat sound wave radiation surface. The flat surface may be of a honey-comb configuration, or may be made of a low density synthetic foam.
摘要翻译：机械双向扬声器包括由相同的音圈驱动的彼此同轴布置的低频隔膜。为了在高频范围内使扬声器的声压与频率特性平坦化，低频隔膜设置有平坦的声波辐射表面。平面可以是蜂巢构造，或者可以由低密度合成泡沫制成。

7. 发明授权

US07875866B2 Beam recording apparatus and beam adjustment method 失效
标题翻译：光束记录装置和光束调整方法
公开(公告)号：US07875866B2
公开(公告)日：2011-01-25
申请号：US12294170
申请日：2007-03-23
申请人： Hiroaki Kitahara , Yasumitsu Wada
发明人： Hiroaki Kitahara , Yasumitsu Wada
IPC分类号： G11B7/00
CPC分类号： G11B7/261 , G11B5/59627 , G11B5/855 , G11B7/0953 , G11B9/10
摘要： An electron beam recording apparatus includes: a displacement detection unit including at least three displacement sensors disposed at each different angle in a radial direction of the turntable; a shape calculation unit for calculating, based on the detected displacements by the at least three displacement sensors, shape data corresponding to displacements of side surface of the turntable in the radial directions; a rotation runout computing unit for computing, based on the shape data and at least one displacement detected by the at least three displacement sensors, rotation runout of the turntable including a rotation asynchronous component and a rotation synchronous component; and a beam irradiation position adjustment unit for adjusting an irradiation position of the electron beam based on the rotation runout.
摘要翻译：电子束记录装置包括：位移检测单元，包括沿转盘的径向设置在每个不同角度的至少三个位移传感器; 形状计算单元，用于基于所检测的所述至少三个位移传感器的位移，计算与所述转盘在径向方向上的侧面的位移对应的形状数据; 旋转跳动计算单元，用于基于所述形状数据和由所述至少三个位移传感器检测到的至少一个位移来计算包括旋转异步分量和旋转同步分量的所述转盘的旋转跳动; 以及光束照射位置调整单元，用于基于旋转跳动来调整电子束的照射位置。

8. 发明授权

US4488012A MFB Loudspeaker 失效
标题翻译： MFB扬声器
公开(公告)号：US4488012A
公开(公告)日：1984-12-11
申请号：US486780
申请日：1983-04-20
申请人： Norio Matsuda , Yasumitsu Wada , Masaru Chijiiwa
发明人： Norio Matsuda , Yasumitsu Wada , Masaru Chijiiwa
IPC分类号： H04R9/00 , H04R3/00 , H04R3/04 , H04R7/26 , H04R9/04 , H04R9/06 , H04R3/08 , H04R23/02
CPC分类号： H04R3/002 , H04R9/04
摘要： An MFB loudspeaker comprising a detector element mounted on a diaphragm on a specific position, i.e., a nodal line of a primary resonance mode thereof for generating a voltage proportional to a component indicative the vibratory characteristics of the diaphragm.
摘要翻译：一种MFB扬声器，包括安装在特定位置的隔膜上的检测器元件，即其主谐振模式的节点线，用于产生与表示隔膜的振动特性的分量成比例的电压。

9. 发明授权

US07190664B2 High density optical recording medium and method for reproducing thereof 失效
标题翻译：高密度光记录介质及其再现方法
公开(公告)号：US07190664B2
公开(公告)日：2007-03-13
申请号：US10257719
申请日：2001-08-03
申请人： Takuma Yanagisawa , Takayuki Nomoto , Yasumitsu Wada , Fumihiko Yokogawa , Seiichi Ohsawa
发明人： Takuma Yanagisawa , Takayuki Nomoto , Yasumitsu Wada , Fumihiko Yokogawa , Seiichi Ohsawa
IPC分类号： G11B7/24
CPC分类号： G11B7/24085 , G11B7/007 , G11B7/261
摘要： An optical disc includes an information recording layer having a record of information as a pit train with a predetermined track pitch and a light-transmissive layer formed on the information recording layer so that the information can be reproduced by a beam of light illuminated through the light-transmissive layer to the information recording layer by an objective lens. The optical disc includes a feature in that a relationship of 0.194(λ/NA)2≦TP ×Tmin≦0.264(λ/NA)2 is satisfied, provided that the track pitch is TP, a pit shortest length is Tmin, a wavelength of the light beam is λ and a numerical aperture of the objective lens is NA. The optical disc also includes a feature in that a pit width is 120 nm or smaller in a range of a track pitch of 0.280 to 0.325 μm.
摘要翻译：光盘包括信息记录层，其具有作为具有预定轨道间距的凹坑列的信息记录和形成在信息记录层上的透光层，使得可以通过光照射的光束再现信息透射层通过物镜传送到信息记录层。该光盘包括一个特征，其中满足0.194（λ/ NA）<2> <= TP×Tmin <= 0.264（λ/ NA）<2>的关系，条件是轨道间距为TP，凹坑最短长度为Tmin，光束的波长为λ，物镜的数值孔径为NA。该光盘还包括在轨道间距为0.280〜0.325μm的范围内的凹坑宽度为120nm以下的特征。

10. 发明申请

US20090170017A1 BEAM RECORDING APPARATUS AND BEAM ADJUSTMENT METHOD 失效
标题翻译：光束记录装置和光束调整方法
公开(公告)号：US20090170017A1
公开(公告)日：2009-07-02
申请号：US12294170
申请日：2007-03-23
申请人： Hiroaki Kitahara , Yasumitsu Wada
发明人： Hiroaki Kitahara , Yasumitsu Wada
IPC分类号： G03F7/20 , G03B21/00
CPC分类号： G11B7/261 , G11B5/59627 , G11B5/855 , G11B7/0953 , G11B9/10
摘要： An electron beam recording apparatus includes: a displacement detection unit including at least three displacement sensors disposed at each different angle in a radial direction of the turntable; a shape calculation unit for calculating, based on the detected displacements by the at least three displacement sensors, shape data corresponding to displacements of side surface of the turntable in the radial directions; a rotation runout computing unit for computing, based on the shape data and at least one displacement detected by the at least three displacement sensors, rotation runout of the turntable including a rotation asynchronous component and a rotation synchronous component; and a beam irradiation position adjustment unit for adjusting an irradiation position of the electron beam based on the rotation runout.
摘要翻译：电子束记录装置包括：位移检测单元，包括沿转盘的径向设置在每个不同角度的至少三个位移传感器; 形状计算单元，用于基于所检测的所述至少三个位移传感器的位移，计算与所述转盘在径向方向上的侧面的位移对应的形状数据; 旋转跳动计算单元，用于基于所述形状数据和由所述至少三个位移传感器检测到的至少一个位移来计算包括旋转异步分量和旋转同步分量的所述转盘的旋转跳动; 以及光束照射位置调整单元，用于基于旋转跳动来调整电子束的照射位置。

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