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公开(公告)号：US6166468A
公开(公告)日：2000-12-26
申请号：US368303
申请日：1999-08-03
申请人： Yuzuru Suzuki , Sakae Fujitani , Kunitake Matsushita , Takayuki Yamawaki , Hiroshi Sano , Kazuo Muramatsu , Taichi Nishio
发明人： Yuzuru Suzuki , Sakae Fujitani , Kunitake Matsushita , Takayuki Yamawaki , Hiroshi Sano , Kazuo Muramatsu , Taichi Nishio
摘要： The object of the present invention is to provide a rotary electric machine which has high assembly accuracy, high heat dissipating efficiency, and excellent durability at the bearing portion. A motor comprises a case, a stator secured within the case, and a rotor formed into one piece with a rotary shaft. The case is provided, on both end faces, with flanges, and one of the flanges is provided with a ball bearing. A stator is radially secured within the case, resin is filled in between the stator and the case with a space of the rotor being left, and a bearing housing and a boss are formed on one side. An open portion is formed in between ribs of the bearing housing, and inserting the bearing into the bearing housing causes a part of the bearing to be exposed through the open portion to fixedly contact with the flange. This allows supporting the bearing securely, and allows frictional heat generated, and the like, to dissipate to the outside via the flange. Furthermore, this allows mounting bearings with high accuracy, and reducing noise accompanying mechanical and electromagnetic vibrations.
摘要翻译： 本发明的目的是提供一种旋转电机，其具有高的组装精度，高散热效率和在轴承部分具有优异的耐久性。 电动机包括壳体，固定在壳体内的定子和与旋转轴一体形成的转子。 在两个端面上设置有凸缘，并且其中一个凸缘设置有球轴承。 定子径向地固定在壳体内，树脂填充在定子和壳体之间，转子的空间留下，轴承壳体和凸台形成在一侧。 开口部分形成在轴承壳体的肋之间，并且将轴承插入到轴承壳体中，使得轴承的一部分通过开口部暴露以与凸缘固定接触。 这允许牢固地支撑轴承，并且允许产生的摩擦热等通过凸缘散发到外部。 此外，这允许以高精度安装轴承，并且减少伴随机械和电磁振动的噪音。
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82.发明授权
公开(公告)号：US6133655A
公开(公告)日：2000-10-17
申请号：US969656
申请日：1997-11-13
申请人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
发明人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
CPC分类号： G11B19/2009 , H02K1/2733 , H02K29/03 , H02K5/165 , H02K7/09
摘要： A claw-pole stepping motor with rotor, including a vibration reducing magnet. Vibration in the axial direction is suppressed by having a correction force, which overcomes a force produced by a vertical motion caused when the rotor is pulse-driven, and keeps the rotor attracted to one side. The corrective force is generated between an index generating magnetized portion in a lower area of the rotor and a soft magnetic material base. Magnetic flux leakage produced by the excitation of the stator coils of the motor is suppressed by providing a shield ring made of a magnetic material on an inner side of the rotor magnet, which minimizes the magnetic flux flowing from the coils to the revolving shaft, and noises on the recording and reproducing head are thereby greatly reduced.
摘要翻译： 具有转子的爪极步进电机，包括减振磁铁。 通过具有校正力来抑制轴向的振动，该校正力克服了当转子被脉冲驱动时引起的垂直运动产生的力，并且将转子保持在一侧。 在转子的下部区域的指标产生磁化部分和软磁性材料基体之间产生校正力。 通过在转子磁体的内侧设置由磁性材料制成的屏蔽环来抑制由马达的定子线圈的激励产生的磁通泄漏，其使从线圈流到旋转轴的磁通量最小化，以及 从而大大降低了记录和再现头上的噪声。
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公开(公告)号：US6087755A
公开(公告)日：2000-07-11
申请号：US136039
申请日：1998-08-20
申请人： Yuzuru Suzuki , Sakae Fujitani , Masaki Kagawa , Yoshiyuki Aono , Masato Hata , Kunitake Matsushita
发明人： Yuzuru Suzuki , Sakae Fujitani , Masaki Kagawa , Yoshiyuki Aono , Masato Hata , Kunitake Matsushita
IPC分类号： H02K1/14 , H02K3/46 , H02K3/52 , H02K11/04 , H02K15/02 , H02K21/12 , H02K29/00 , H02K29/08 , H02K37/00
CPC分类号： H02K1/148 , H02K11/33 , H02K29/08 , H02K3/522 , H02K2201/06 , H02K2201/09
摘要： A motor structure having an armature yoke 1 including a cylindrical portion and a plurality of salient poles 20 formed in the radial direction on the circumference of one end of the cylindrical portion, characterized by having a stator coil 5 formed by a concentrated winding provided around a salient pole portion 20', which is formed by joining the salient poles 20 of two armature yokes 1 together, and a motor structure characterized by having the above described structure and further having a salient pole piece 11 disposed on the front end of the salient pole portion in confronting relationship with a rotor magnet 2.
摘要翻译： 一种电动机结构，其具有包括圆筒部的电枢磁轭1和在圆筒部的一端的圆周上沿径向形成的多个凸极20，其特征在于，具有定子线圈5， 通过将两个电枢轭1的凸极20接合在一起形成的凸极部分20'和具有上述结构的电动机结构，并且还具有设置在突极的前端上的凸极片11 与转子磁体2相对的部分。
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84.发明授权Motor structure having a permanent magnet motor with grooves to reduce torque ripples 失效电动机结构具有带凹槽的永磁电动机以减小转矩波动
公开(公告)号：US6081058A
公开(公告)日：2000-06-27
申请号：US655090
申请日：1996-06-04
申请人： Yuzuru Suzuki , Sakae Fujitani
发明人： Yuzuru Suzuki , Sakae Fujitani
IPC分类号： H02K29/00 , H02K1/27 , H02K21/22 , H02K29/03 , H02K29/14 , H02K37/12 , H02K37/14 , H02K21/12 , H02K11/00
CPC分类号： H02K29/14 , H02K1/2786 , H02K29/03
摘要： A motor structure in a salient pole type DC motor in which torque ripple and cogging torque are reduced, without deceasing motor efficiency, and the torque constant and irregularity of the rotation are reduced. The magnetic flux density distribution of an air gap approaches a sine wave shape by forming a groove in the vicinity of the neutral part (a boundary of an N-pole and an S-pole) of a rotor magnet.
摘要翻译： 降低了转矩脉动和齿槽转矩的凸极式直流电动机的电动机结构，而不会降低电动机效率，并且减小转矩常数和旋转不均匀性。 气隙的磁通密度分布通过在转子磁体的中性部附近（N极和S极的边界）附近形成凹槽来接近正弦波形状。
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公开(公告)号：US6057621A
公开(公告)日：2000-05-02
申请号：US186147
申请日：1998-11-05
申请人： Yuzuru Suzuki , Sakae Fujitani , Masaki Kagawa , Yoshiyuki Aono
发明人： Yuzuru Suzuki , Sakae Fujitani , Masaki Kagawa , Yoshiyuki Aono
CPC分类号： H02K21/14 , H02K1/148 , H02K2201/06 , H02K5/02
摘要： Salient poles made from soft magnetic steel plates have tip sections of approximately the same length as a rotor magnet. The salient poles are constructed with laminations in the circumferential direction, with axial dimensions adjusted with respect to the circumferential dimensions determined by the constraints of the winding to allow winding sections with a minimum required cross-sectional area so that magnetic saturation does not occur. These winding sections are inserted into coils wound with magnet wire, and press fitted into the stator which makes the magnetic circuit with the salient poles and forms the armature.
摘要翻译： 由软磁钢板制成的凸极具有与转子磁体大致相同长度的尖端部分。 凸极在圆周方向上具有叠片，其轴向尺寸相对于由绕组的约束确定的周向尺寸进行调节，以允许具有最小所需横截面面积的卷绕部分，使得不发生磁饱和。 将这些绕组部分插入到用电磁线缠绕的线圈中，并将其压配合到定子中，使磁路与凸极形成电枢。
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公开(公告)号：US5962947A
公开(公告)日：1999-10-05
申请号：US910253
申请日：1997-08-13
申请人： Yuzuru Suzuki , Haruyoshi Hino , Sakae Fujitani , Naomi Inoue , Hideki Sakiyama
发明人： Yuzuru Suzuki , Haruyoshi Hino , Sakae Fujitani , Naomi Inoue , Hideki Sakiyama
CPC分类号： H02K1/145 , H02K21/145 , H02K2201/06 , H02K2201/12
摘要： To reduce as much as possible the motor vibration due to the effect of harmonic components contained in the induced electromotive force waveform induced in the armature coil. In a motor structure, the pole tooth shapes of one pole tooth and the corresponding pole tooth thereto constituting one phase are made different from each other by changing their areas or amounts of skew, whereby the third harmonics caused by variations in the magnetic fluxes interlinking with these pole teeth are caused to cancel each other. Thus, the rotational vibration which has hitherto been a problem can be reduced and, further, the accuracy of the rotor movement can be improved without lowering the dynamic torque characteristic of the motor.
摘要翻译： 为了尽可能减少由于在电枢线圈中感应的感应电动势波形中包含的谐波分量的影响而引起的电动机振动。 在电动机结构中，通过改变它们的面积或歪斜量，使得单极齿和构成一相的对应极齿的极齿形状彼此不同，由此由与磁铁相互连接的磁通量的变化引起的三次谐波 使这些极齿相互抵消。 因此，可以降低迄今为止存在的问题的旋转振动，并且还可以在不降低电动机的动态转矩特性的情况下提高转子运动的精度。
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公开(公告)号：US5847485A
公开(公告)日：1998-12-08
申请号：US749343
申请日：1996-11-21
申请人： Yuzuru Suzuki , Sakae Fujitani
发明人： Yuzuru Suzuki , Sakae Fujitani
CPC分类号： H02K21/227 , H02K21/145 , H02K5/1675 , H02K7/14 , H02K2201/12 , H02K5/225
摘要： A motor structure of a claw pole type two-phase synchronous motor has a stator including two armature coils held between corresponding pairs of stator yokes and superposed on one another, and a rotor coaxially mounted on the stator and having a rotary shaft around which the rotor rotates so that a part of the chassis of a memory apparatus forms one of the stator yokes.
摘要翻译： 爪极式两相同步电动机的电动机结构具有定子，该定子包括保持在相应的定子线圈对之间的两个电枢线圈和彼此叠置的定子，以及同轴地安装在定子上并具有旋转轴的转子，转子 旋转使得存储装置的底盘的一部分形成定子轭中的一个。
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公开(公告)号：US5834866A
公开(公告)日：1998-11-10
申请号：US753188
申请日：1996-11-21
申请人： Sakae Fujitani , Yuzuru Suzuki , Hiroki Akaoka
发明人： Sakae Fujitani , Yuzuru Suzuki , Hiroki Akaoka
摘要： This invention provides a two-phase motor which is applicable to a field where high rotation precision is required as in an FDD spindle motor, which requires a low cost, and which can maintain stable characteristics free from magnetic balance fluctuation between the two phases due to assembly. This motor has a ferromagnetic stator having N stator salient poles and a rotor magnet having M poles. N and M are selected to be both even numbers so a relation N:M=2:2n-1 (n is a natural number) holds. The N stator salient poles are divided into first and second salient pole groups of N/2 stator salient poles on which windings are concentratedly wound. The stator salient poles belonging to the first and second salient pole groups are alternately arranged in the circumferential direction of the stator. The phases of the windings of the stator salient poles belonging to the first and second salient pole groups are sequentially opposite to each other in the circumferential direction in units of groups. The windings of the stator salient poles belonging to the first and second salient pole groups are sequentially, electrically connected in the circumferential direction in units of groups to respectively form first and second phases, thereby providing a two-phase arrangement.
摘要翻译： 本发明提供一种二相电动机，其可应用于需要低FDD主轴电动机的高旋转精度的领域，这需要低成本，并且可以保持两相之间没有磁平衡波动的稳定特性，这是由于 部件。 该电动机具有具有N个定子凸极的铁磁定子和具有M个极的转子磁体。 N和M被选择为两个偶数，因此关系N：M = 2：2n-1（n是自然数）成立。 N个定子凸极分为N / 2个定子凸极的第一和第二凸极组，绕组集中缠绕在其上。 属于第一和第二凸极组的定子凸极在定子的圆周方向上交替布置。 属于第一和第二凸极组的定子凸极的绕组的相位在圆周方向上以组为单位彼此顺序相对。 属于第一和第二凸极组的定子凸极的绕组在圆周方向上以组为单位依次电连接，以分别形成第一和第二相，从而提供两相布置。
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89.发明授权Protein having .alpha.-glucosidase activity, DNA having genetic information thereof, and production of .alpha.-glucosidase 失效具有α-葡糖苷酶活性的蛋白质，具有遗传信息的DNA和α-葡糖苷酶的产生
公开(公告)号：US5795766A
公开(公告)日：1998-08-18
申请号：US611361
申请日：1996-03-06
申请人： Yuzuru Suzuki , Yukio Takii , Kazumi Yamamoto , Yoshiaki Nishiya , Atsushi Sogabe , Yukihiro Sogabe , Shigenori Emi
发明人： Yuzuru Suzuki , Yukio Takii , Kazumi Yamamoto , Yoshiaki Nishiya , Atsushi Sogabe , Yukihiro Sogabe , Shigenori Emi
CPC分类号： C12N9/2414 , C12N9/2408
摘要： A protein having an .alpha.-glucosidase activity, wherein its N-terminal amino acid sequence is the sequence depicted in the Sequence Listing of the present invention at Sequence No. 1; a DNA having the genetic information of the protein having an .alpha.-glucosidase activity; a recombinant vector containing said DNA; a transformant transformed with said vector; and production of .alpha.-glucosidase comprising culture of said transformant in a medium so as to grow .alpha.-glucosidase, and harvesting said .alpha.-glucosidase. According to the present invention, .alpha.-glucosidase without contamination of amylase can be easily produced in high yields and in large amounts by genetic engineering.
摘要翻译： 具有α-葡糖苷酶活性的蛋白质，其N-末端氨基酸序列是序列号1的本发明的序列表中所示的序列; 具有具有α-葡糖苷酶活性的蛋白质的遗传信息的DNA; 含有所述DNA的重组载体; 用所述载体转化的转化体; 和α-葡萄糖苷酶的生产，包括在培养基中培养所述转化体，以便生长α-葡萄糖苷酶，并收获所述α-葡糖苷酶。 根据本发明，通过遗传工程可以容易地以高产率和大量生产不污染淀粉酶的α-葡糖苷酶。
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公开(公告)号：US5770905A
公开(公告)日：1998-06-23
申请号：US814252
申请日：1997-03-11
申请人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
发明人： Yuzuru Suzuki , Sakae Fujitani , Takashi Ishii
CPC分类号： H02K21/145 , B27N3/00 , E04F13/08 , H02K2201/12
摘要： A shield plate for preventing the leakage of a magnetic flux and for reducing acoustic/electromagnetic noise leaking out from the interior of the motor is arranged so as to cover the corresponding end surface of an armature. The inner diameter of the shield plate is made smaller than the outer diameter of a rotor in order to prevent the rotor from being detached from a stator assembly.
摘要翻译： 用于防止磁通泄漏并且用于减少从电机内部泄漏的声/电噪声的屏蔽板被布置成覆盖电枢的相应端表面。 使得屏蔽板的内径小于转子的外径，以防止转子与定子组件分离。
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