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1. 发明授权

US4672253A Permanent magnet electrical machine with reduced cogging 失效
标题翻译：永磁电机齿槽减少
公开(公告)号：US4672253A
公开(公告)日：1987-06-09
申请号：US758699
申请日：1985-07-25
申请人： Fumio Tajima , Hiroshi Katayama , Kunio Miyashita , Teizo Tamura , Kenichi Hironaka , Takuro Kawano , Yosimi Sekita , Kouichi Saito , Akira Tamura
发明人： Fumio Tajima , Hiroshi Katayama , Kunio Miyashita , Teizo Tamura , Kenichi Hironaka , Takuro Kawano , Yosimi Sekita , Kouichi Saito , Akira Tamura
IPC分类号： H02K21/16 , H02K21/22 , H02K29/00 , H02K21/00 , H02K1/14
CPC分类号： H02K21/16 , H02K21/22 , H02K29/03
摘要： A permanent magnet electric machine such as, for example, a motor or generator, including a permanent magnet field member, an armature having salient magnetic poles and armature windings. A greatest common division of the number of magnetic poles of the field member and the salient magnetic poles having the armature windings differs from the number of magnetic poles. A group of grooves is formed between the salient magnetic poles having an interval of 2/3M.pi., with M being an integer which is not a multiple of three. To reduce the occurrence of cogging torque, auxiliary grooves are provided on the surface of the salient poles at positions which are spaced apart from positions of the grooves by (.pi./3)K+(.pi./6), in terms of electrical angle, with K being an integer.
摘要翻译：一种永磁电机，例如包括永磁场构件的电动机或发电机，具有突出磁极和电枢绕组的电枢。磁场部件的磁极数和具有电枢绕组的凸极的极数的最大共同点与磁极数不同。在具有2 / 3MpI间隔的突出磁极之间形成一组凹槽，M是不是3的倍数的整数。为了减少齿槽转矩的发生，在凸极表面上设置辅助凹槽，其位置是从凹槽的位置与电角度（pi / 3）K +（pi / 6），以电角度与 K为整数。

2. 发明授权

US4914361A Method and apparatus for controlling the speed of moving body 失效
标题翻译：用于控制移动体速度的方法和装置
公开(公告)号：US4914361A
公开(公告)日：1990-04-03
申请号：US362239
申请日：1989-06-06
申请人： Fumio Tajima , Hiroshi Katayama , Kunio Miyashita , Seiichi Narushima , Kouichi Saito
发明人： Fumio Tajima , Hiroshi Katayama , Kunio Miyashita , Seiichi Narushima , Kouichi Saito
IPC分类号： H02P6/06 , H02P23/00
CPC分类号： H02P6/06 , H02P23/16
摘要： Disclosed is a speed controlling method and apparatus in which a suitable current or voltage command is given to a moving body on the basis of the relation between a speed detection signal obtained by detecting the speed of the moving body and an externally supplied speed command signal. The speed of the moving body is controlled in a manner so that the speed of the moving body is successively detected, a speed error which is a difference between a speed command value and a speed detection value is calculated whenever the speed of the moving body is detected, and the speed of the moving body is successively controlled on the basis of a driving signal obtained by an arithmetic operation on the basis of the speed error and a set control gain, and that, on the other hand, a present speed error quantity is calculated on the basis of speed errors obtained whenever the detection of the speed of the moving body have been carried out predetermined number of times, the speed error quantity obtained presently is compared with and the speed error quantity obtained last, and the set gain is corrected or updated in accordance with the result of comparison of the present and last speed error quantities to thereby minimize the speed error quantity.
摘要翻译：公开了一种速度控制方法和装置，其中，根据通过检测移动体的速度获得的速度检测信号和外部提供的速度指令信号之间的关系，向移动体提供合适的电流或电压指令。控制移动体的速度，使得运动体的速度被连续地检测到，只要移动体的速度为运动体的速度，就计算作为速度指令值与速度检测值之差的速度误差基于通过基于速度误差和设定控制增益的算术运算获得的驱动信号连续地控制移动体的速度，另一方面，当前速度误差量只要移动体的速度的检测已经执行了预定次数，将当前获得的速度误差量与最后获得的速度误差量进行比较，则基于所获得的速度误差来计算，并且设定的增益为根据当前和最后速度误差量的比较结果进行校正或更新，从而使速度误差量最小化。

3. 发明授权

US5023924A Speed control apparatus for movable equipment 失效
标题翻译：移动设备调速装置
公开(公告)号：US5023924A
公开(公告)日：1991-06-11
申请号：US473915
申请日：1990-02-02
申请人： Fumio Tajima , Hiroshi Katayama , Kunio Miyashita , Shigeki Morinaga , Seiichi Narushima
发明人： Fumio Tajima , Hiroshi Katayama , Kunio Miyashita , Shigeki Morinaga , Seiichi Narushima
IPC分类号： H02P6/00 , H02P6/06 , H02P6/10
CPC分类号： H02P6/10 , H02P6/006 , H02P6/06 , Y10S388/906
摘要： In order to provide a speed control apparatus for a movable equipment having small torque ripples and speed variation, the present invention has a speed control means which comprises a driver for providing a current or a voltage having a magnitude corresponding to the instructed speed, a speed detection circuit for detecting a speed on the basis of a signal from the speed detector and a microcomputer for driving the driver by comparing the speed instruction signal with a speed signal obtained from the speed detection circuit. The microcomputer includes a harmonic wave component detecting means for detecting a harmonic wave component contained in a speed variation mode which is obtained from the speed detection circuit and has a function of making the gain of a speed control system variable by the harmonic wave component detected by the harmonic wave component detecting means.

4. 发明授权

US4918346A Low ripple-torque permanent magnet brushless motor 失效
标题翻译：低纹波扭矩永磁无刷电机
公开(公告)号：US4918346A
公开(公告)日：1990-04-17
申请号：US211042
申请日：1988-06-24
申请人： Fumio Tajima , Nicolas Samman , Kunio Miyashita , Hiroshi Katayama , Motoya Ito , Seiichi Narushima , Kiyoshi Yamamuro
发明人： Fumio Tajima , Nicolas Samman , Kunio Miyashita , Hiroshi Katayama , Motoya Ito , Seiichi Narushima , Kiyoshi Yamamuro
IPC分类号： H02K1/27 , H02K29/08
CPC分类号： H02K1/2793 , H02K29/08
摘要： The stator comprises three phase driving coils and an electric commutator for controlling current to the driving coils. The rotor comprises permanent magnets which are alternately magnetized in N polarity and S polarity. Driving torque is generated corresponding to the current flowing through the driving coils and the permanent magnets. On the surface of the permanent magnet facing to the driving coils, two non-magnetizing portions are provided in each permanent magnet having either N or S polarity.
摘要翻译：定子包括三相驱动线圈和用于控制到驱动线圈的电流的电动换向器。转子包括以N极性和S极性交替磁化的永磁体。对应于流经驱动线圈和永磁体的电流产生驱动转矩。在面向驱动线圈的永磁体的表面上，在具有N或S极性的每个永磁体中设置两个非磁化部分。

5. 发明授权

US4980617A Speed control apparatus of movable equipment 失效
标题翻译：移动设备速度控制装置
公开(公告)号：US4980617A
公开(公告)日：1990-12-25
申请号：US310197
申请日：1989-02-14
申请人： Fumio Tajima , Hiroshi Katayama , Tunehiro Endo , Kunio Miyashita , Seiichi Narushima , Jun Ohya , Kouchi Saito
发明人： Fumio Tajima , Hiroshi Katayama , Tunehiro Endo , Kunio Miyashita , Seiichi Narushima , Jun Ohya , Kouchi Saito
IPC分类号： H02P6/00 , H02P6/06
CPC分类号： H02P6/006 , H02P6/06
摘要： A speed control apparatus is provided for controlling a speed of a movable equipment in such a way that the speed of the movable equipment is detected, calculates a deviation value between a detected speed of the movable equipment and a speed instruction signal, and controls the speed of the movable equipment based on the deviation value. The speed control equipment detects harmonic wave components included in the detected speed and reduces the harmonic wave components from the speed instruction signal so as to control the speed of the movable equipment.
摘要翻译：提供一种速度控制装置，用于以可检测的可移动设备的速度来控制可移动设备的速度，计算可移动设备的检测速度与速度指令信号之间的偏差值，并控制速度基于偏差值的可移动设备。速度控制设备检测包含在检测速度中的谐波成分，并从速度指令信号中减少谐波分量，以便控制可移动设备的速度。

6. 发明授权

US5175479A Moving body position control apparatus and signal reproducing apparatus 失效
标题翻译：移动体位置控制装置和信号重放装置
公开(公告)号：US5175479A
公开(公告)日：1992-12-29
申请号：US654194
申请日：1991-02-12
申请人： Fumio Tajima , Hiroshi Katayama , Taizou Miyazaki , Shigeki Morinaga , Nobuyoshi Mutoh , Seiichi Narushima
发明人： Fumio Tajima , Hiroshi Katayama , Taizou Miyazaki , Shigeki Morinaga , Nobuyoshi Mutoh , Seiichi Narushima
IPC分类号： G11B5/588 , G05B13/02 , G05B19/23 , G05D3/12 , G11B5/55 , G11B15/467 , H02P6/06 , H02P6/08 , H02P27/06
CPC分类号： G11B5/5508 , G05B13/024 , G05B19/231 , G05B19/234
摘要： There is provided position error computing means for sampling an error value between a position detecting signal derived from means for detecting the position of a moving body and a position command signal supplied from outside and for computing a position error value on the basis of two or more past values of said error values. There is also provided a position control apparatus in which the magnitude of a gain of a position control loop is changed according to the above described position error value. Further, there is also provided a signal reproducing apparatus or a magnetic signal reproducing apparatus using the above described position control.
摘要翻译：提供了一种位置误差计算装置，用于对从用于检测移动体的位置的装置和从外部提供的位置指令信号导出的位置检测信号之间的误差值进行采样，并且基于两个或更多个来计算位置误差值所述错误值的过去值。还提供了一种位置控制装置，其中位置控制环路的增益的大小根据上述位置误差值而改变。此外，还提供了使用上述位置控制的信号再现装置或磁信号再现装置。

7. 发明授权

US5298841A Apparatus for controlling the speed of a moving object 失效
标题翻译：用于控制移动物体的速度的装置
公开(公告)号：US5298841A
公开(公告)日：1994-03-29
申请号：US687239
申请日：1991-04-18
申请人： Hiroshi Katayama , Fumio Tajima , Taizo Miyazaki , Shigeki Morinaga , Nobuyoshi Mutoh , Seiichi Narushima , Yuji Sato , Toshio Nakamoto , Takashi Takahashi , Toshio Osada
发明人： Hiroshi Katayama , Fumio Tajima , Taizo Miyazaki , Shigeki Morinaga , Nobuyoshi Mutoh , Seiichi Narushima , Yuji Sato , Toshio Nakamoto , Takashi Takahashi , Toshio Osada
IPC分类号： H02P6/06 , H02P6/10 , H02P5/00
CPC分类号： H02P6/06 , H02P6/10 , Y10S388/907
摘要： A speed control apparatus in which for sampling features of a speed fluctuation and generating a speed fluctuation correcting signal, an arithmetic operation can be simplified and can be performed by an inexpensive arithmetic and operation unit, thus requiring no expensive arithmetic operation unit. The speed control apparatus is also capable of reducing torque ripples and speed fluctuations quickly even when the load of an object to be controlled is changed.
摘要翻译：一种速度控制装置，其中为了对速度波动的特征进行采样并产生速度波动校正信号，可以简化算术运算，并且可以由廉价的运算单元执行，从而不需要昂贵的算术运算单元。即使当要控制的物体的负载改变时，速度控制装置也能够快速地减小扭矩波动和速度波动。

8. 发明授权

US5432644A Disk drive unit having motor components in a compact arrangement 失效
标题翻译：具有紧凑布置的电机部件的磁盘驱动单元
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。

9. 发明授权

US08947868B2 Protective cover and information processor 有权
标题翻译：防护罩和信息处理器
公开(公告)号：US08947868B2
公开(公告)日：2015-02-03
申请号：US13611857
申请日：2012-09-12
申请人： Takuya Motoishi , Yuuki Kubota , Yasushi Itoshiro , Junichiro Ishii , Hiroshi Katayama , Junichiro Misawa
发明人： Takuya Motoishi , Yuuki Kubota , Yasushi Itoshiro , Junichiro Ishii , Hiroshi Katayama , Junichiro Misawa
IPC分类号： H05K5/00
CPC分类号： G06F1/1613 , G06F2200/1633
摘要： A protective cover includes an input operating unit and a cover unit. Through the input operating unit, an input operation to an electronic apparatus is performed. In the cover unit, the input operating unit is disposed. In the protective cover, the cover unit includes a folding section and two plate sections connected to the folding section. A connection terminal section is provided to which the electronic apparatus is connected. A wiring section which interconnects the input operating unit and the connection terminal section and which is bent attendantly on folding at the folding section is disposed inside the cover unit. Folding at the folding section into a predetermined shape enables setting of a cover mode in which the electronic apparatus is covered.
摘要翻译：保护盖包括输入操作单元和盖单元。通过输入操作单元，执行对电子设备的输入操作。在盖单元中，布置输入操作单元。在保护盖中，盖单元包括折叠部分和连接到折叠部分的两个板部分。连接端子部分设置有与电子设备连接的连接端子部分。将输入操作单元和连接端子部分互连并在折叠部分折叠时弯曲弯曲的布线部分设置在盖单元内。在折叠部分折叠成预定形状使得能够设置覆盖电子设备的覆盖模式。

10. 发明申请

US20090096921A1 Image processing apparatus, method, program, and recording medium 审中-公开
标题翻译：图像处理装置，方法，程序和记录介质
公开(公告)号：US20090096921A1
公开(公告)日：2009-04-16
申请号：US12151552
申请日：2008-05-07
申请人： Hiroshi Katayama
发明人： Hiroshi Katayama
IPC分类号： H04N7/04
CPC分类号： H04N21/4821 , H04N5/44591 , H04N5/45 , H04N7/56 , H04N21/2365 , H04N21/4305 , H04N21/4307 , H04N21/4316 , H04N21/434 , H04N21/4347 , H04N21/4348 , H04N21/64792
摘要： An image processing apparatus includes: digital-source processing means for processing a plurality of digital sources; analog-source processing means for processing a plurality of analog sources; and generation means for generating a clock independently of a clock locked with each input source of the digital sources and the analog sources, and generating a clock in synchronism with a clock selected out of the input sources. The digital-source processing means and the analog-source processing means have individual clock recovery functions independently.
摘要翻译：一种图像处理装置，包括：数字源处理装置，用于处理多个数字源; 用于处理多个模拟源的模拟源处理装置; 以及产生装置，用于独立于与数字源和模拟源的每个输入源锁定的时钟产生时钟，并且与从输入源选择的时钟同步地产生时钟。数字源处理装置和模拟源处理装置独立地具有独立的时钟恢复功能。

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