公开(公告)号：US06531843B2

公开(公告)日：2003-03-11

申请号：US09941791

申请日：2001-08-30

申请人： Yoshitaka Iwaji ,  Tsunehiro Endo ,  Hiroshi Fujii ,  Tatsuo Ando

发明人： Yoshitaka Iwaji ,  Tsunehiro Endo ,  Hiroshi Fujii ,  Tatsuo Ando

IPC分类号： H02P124

CPC分类号： H02P6/085 ,  H02P6/18

摘要： The present invention provides a control algorithm which instantaneously detects magnetic pole positions in the inside of a motor including polarities of the motor. A controller 1 applies a minute voltage change vhd to a voltage command on a dc axis which constitutes an estimation magnetic pole axis of the motor 3, detects electric currents Idc, Iqc of a motor 3 and discriminates the polarities of the magnetic pole axes by making use of the difference between a cycle in which ripple components of the electric currents Idc, Iqc become positive and a cycle in which the ripple components become negative or the difference between positive-side and negative-side current change rates. Further, the minute voltage change vhd with respect to the above-mentioned voltage command is generated on both of the dc axis and the qc axis rectangular thereto, and the magnetic pole positions of the motor are directly estimated based on the current ripple components on the respective axes. Without separately providing a cycle for discriminating the polarities of the magnetic poles, the cycle from the turning-on of a power source to the starting of the motor can be shortened so that the high-speed starting of the motor can be realized.

公开(公告)号：US06395575B1

公开(公告)日：2002-05-28

申请号：US09463144

申请日：2000-01-20

申请人： Shinji Umeda ,  Koji Nomura ,  Akihiko Ibata ,  Hiroshi Fujii ,  Takeshi Masutani

发明人： Shinji Umeda ,  Koji Nomura ,  Akihiko Ibata ,  Hiroshi Fujii ,  Takeshi Masutani

IPC分类号： H01L2100

CPC分类号： G01D5/16 ,  H01L31/101 ,  H01L31/18

摘要： A sensor in which a field effect transistor element 3 having a gate electrode 6 on its rear side is electrically connected onto a resistive element 2 having a top surface electrode and a bottom surface electrode in such a way that the gate electrode 6 and a portion of the top surface electrode of the resistive element 2 coincides, and a grounding electrode 12 on a substrate is electrically connected with the bottom surface electrode of the resistive element 2 so that they coincides.

摘要翻译： 其中具有在其后侧具有栅极电极6的场效应晶体管元件3的传感器电连接到具有顶表面电极和底表面电极的电阻元件2上，使得栅电极6和一部分 电阻元件2的顶表面电极重合，并且衬底上的接地电极12与电阻元件2的底表面电极电连接使得它们重合。

公开(公告)号：US6144571A

公开(公告)日：2000-11-07

申请号：US506269

申请日：2000-02-17

申请人： Yasushi Sasaki ,  Yutaka Maeno ,  Hiroshi Fujii ,  Kinya Nakatsu ,  Toshio Ogawa ,  Akihiro Tamba ,  Kazuji Yamada

发明人： Yasushi Sasaki ,  Yutaka Maeno ,  Hiroshi Fujii ,  Kinya Nakatsu ,  Toshio Ogawa ,  Akihiro Tamba ,  Kazuji Yamada

IPC分类号： H02M7/04 ,  H01L25/16 ,  H02M7/48 ,  H05K1/14 ,  H03M7/00 ,  H01L23/043

CPC分类号： H01L25/165 ,  H01L25/162 ,  H01L2224/45124 ,  H01L2224/48137 ,  H01L2924/13055 ,  H01L2924/14 ,  H01L2924/19041 ,  H05K1/144

摘要： In order to bring a moduled power converter into less size and cost in the case of a structure having a lead-insert-case, an insulated metal circuit board and a printed circuit board, a difficulty was encountered in thinning a wiring width and an increase in pad area for each metal wire has interfered with a reduction in its size and cost.In the present invention to cope with it, a power converter is constructed by using a semiconductor module having such a structure that a metal base and lead frames are adhered to each other in a state in which an insulating adhesive sheet is interposed therebetween, a resin-molded outer package is adhered to the metal base with an adhesive or the like, and a resin sealing agent is charged into the resin-molded outer package to thereby integrally seal the resin-molded outer package and circuit parts such as semiconductor elements implemented therein, whereby a reduction in size and cost thereof is realized.

摘要翻译： 为了在具有引线插入壳体，绝缘金属电路板和印刷电路板的结构的情况下将模块化的功率转换器带入更小的尺寸和成本，在布线宽度变薄和增加时遇到困难 在每个金属线的焊盘区域中，其尺寸和成本受到干扰。 在本发明中，通过使用具有这样的结构的半导体模块来构成功率转换器，所述半导体模块具有金属基底和引线框架彼此粘合的状态，其间插入有绝缘粘合片，树脂 模塑的外包装用粘合剂等粘合到金属基底上，树脂密封剂装入树脂模塑的外包装中，从而将树脂模塑的外包装和其中实现的半导体元件的电路部件整体密封 从而实现了尺寸和成本的降低。

公开(公告)号：US6116496A

公开(公告)日：2000-09-12

申请号：US876652

申请日：1997-06-16

申请人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

发明人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

IPC分类号： B23D79/00 ,  B21B1/02 ,  B21B1/04 ,  B21B15/00 ,  B21B45/00 ,  B23K11/04 ,  H05B6/02 ,  B23K5/22 ,  B23K13/01 ,  B23K37/00 ,  H05B6/16

CPC分类号： B23K11/04 ,  B21B15/0085 ,  B21B45/004 ,  B21B1/04 ,  B21B2001/022

摘要： A method of continuous rolling comprises the steps of: forming a continuous billet 20 by joining a rear end of preceding billet 21 with a front end of succeeding billet 21 by flash-butt welding 3; removing burr on welded portions of the continuous billets 20; then rolling the continuous billet 20 in a rolling mill line 6; wherein locally cold portions produced by clamping at welding are reheated after removing the burr using a travelling induction-heating unit 5 running at a speed synchronously with a running speed of the continuous billet 20, which travelling induction-heating unit 5 is provided with induction-heating coils arranged at the same distance with that of the locally cold portions.

摘要翻译： 连续轧制的方法包括以下步骤：通过闪光对接3将前一坯料21的后端与后一坯料21的前端连接，形成连续坯料20; 去除连续坯料20的焊接部分上的毛刺; 然后在轧机生产线6中轧制连续坯料20; 其中通过在连续坯料20的运行速度下同步运行的行进感应加热单元5去除毛刺之后，在焊接时通过夹紧而产生的局部冷部被再加热，该行进感应加热单元5设置有感应加热单元5， 加热线圈与局部冷部分的距离相同。

公开(公告)号：US6041993A

公开(公告)日：2000-03-28

申请号：US876650

申请日：1997-06-16

申请人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

发明人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

IPC分类号： B24B9/04 ,  B21B1/02 ,  B21B1/18 ,  B21B15/00 ,  B23K11/04 ,  B23K37/00 ,  B23K31/00 ,  B23K31/02

CPC分类号： B21B15/0085 ,  B21B1/18 ,  Y10T29/5183

摘要： A method for continuous rolling includes flash-butt welding to form a continuous billet by joining a rear end of a preceding billet with a front end of a succeeding billet, removing burrs from a welded portion of the joined part, and continuously rolling the joined continuous billet in a rolling mill group. The flash-butt welding step includes the use of two travelling welders arranged in series and spaced at a distance along the direction of movement of the continuous billet corresponding to the length of the billet being welded. The travelling welders synchronously move with the continuous billet, and separately and simultaneously weld the continuous billet to another billet by flash-butt welding so as to extend the length of the continuous billet.

摘要翻译： 连续轧制方法包括通过将前一坯料的后端与后续钢坯的前端连接，从接合部的焊接部分除去毛刺，连续轧制连续的连续坯料，形成连续坯料的闪光对焊 轧机组中的钢坯。 闪光对接焊接步骤包括使用串联布置的两个移动焊接机，并且沿着连续坯料的移动方向一定距离，对应于被焊接的坯料的长度。 移动焊工与连续坯料同步移动，并通过闪光对接焊接将连续坯料分别并同时焊接到另一坯料，以延长连续坯料的长度。

公开(公告)号：US5672874A

公开(公告)日：1997-09-30

申请号：US413633

申请日：1995-03-30

申请人： Hiroshi Fujii ,  Ryosuke Fukushima ,  Tatsuhide Tsutsui ,  Masahiko Ishida ,  Shuzi Takada

发明人： Hiroshi Fujii ,  Ryosuke Fukushima ,  Tatsuhide Tsutsui ,  Masahiko Ishida ,  Shuzi Takada

IPC分类号： G01N33/26 ,  G01N21/35 ,  G01N21/3577 ,  G01N21/59 ,  G01N33/18 ,  G01N33/28

CPC分类号： G01N33/1833 ,  G01N21/3577

摘要： An oil concentration meter includes a sample cell for receiving an oil sample that can be irradiated with infrared rays from a light source. A first interference filter having a design wavelength of 3.4 .mu.m is positioned before a measuring detector, while a second interference filter transmitting a band range between 1 .mu.m and 5 .mu.m is positioned in front of a reference detector. A logarithm of the ratio of the reference detector output to the measuring detector output is used for determining the oil concentration in a sample.

摘要翻译： 油浓度计包括用于接收可以照射来自光源的红外线的油样的样品池。 设计波长为3.4μm的第一干涉滤光器位于测量检测器之前，而传输1μm和5μm之间的波段范围的第二干涉滤光器位于参考检测器的前面。 使用参考检测器输出与测量检测器输出的比率的对数来确定样品中的油浓度。

公开(公告)号：US5666251A

公开(公告)日：1997-09-09

申请号：US513670

申请日：1995-08-04

申请人： Hiroshi Fujii ,  Shuichi Ota ,  Takashi Sawada

发明人： Hiroshi Fujii ,  Shuichi Ota ,  Takashi Sawada

IPC分类号： G11B15/07 ,  G11B15/17 ,  G11B23/087 ,  G11B23/28 ,  G11B25/06 ,  G11B5/008

CPC分类号： G11B15/07 ,  G11B15/17 ,  G11B23/08714 ,  G11B25/066

摘要： A cassette having one of a plurality of sizes, in which each size cassette is adapted for use with a common cassette recording/reproducing apparatus. Each size cassette includes a cassette case holding a recording medium therein, an information device for providing information pertaining to the respective cassette to the cassette recording/reproducing apparatus when the respective cassette is being used with the cassette recording/reproducing apparatus, and a reference hole for positioning the cassette case in the cassette recording/reproducing apparatus. The reference hole and the information device have a constant positional relationship therebetween regardless of the size of the cassette.

摘要翻译： 具有多个尺寸中的一种的盒式磁带，其中每个尺寸的盒适合于与公用盒式磁带记录/再现装置一起使用。 每个大小的盒子包括在其中保持记录介质的盒壳体，当相应的盒带与盒式磁带记录/再现装置一起使用时，用于向盒式磁带记录/再现装置提供属于相应磁带的信息的信息装置，以及参考孔 用于将盒壳体定位在盒式磁带记录/再现装置中。 无论盒的尺寸如何，参考孔和信息装置都具有恒定的位置关系。

公开(公告)号：US5465202A

公开(公告)日：1995-11-07

申请号：US205082

申请日：1994-03-03

申请人： Satoshi Ibori ,  Hitoshi Yamashita ,  Shigeyuki Baba ,  Hiroshi Fujii ,  Takatsugu Kambara ,  Akira Ishibashi

发明人： Satoshi Ibori ,  Hitoshi Yamashita ,  Shigeyuki Baba ,  Hiroshi Fujii ,  Takatsugu Kambara ,  Akira Ishibashi

IPC分类号： H02P3/22 ,  H02H3/247 ,  H02H7/12 ,  H02P27/06 ,  H02P27/08 ,  H02M5/45

CPC分类号： H02P27/08 ,  H02H3/247 ,  H02H7/1216 ,  H02P27/047

摘要： In a variable frequency power source unit, a series circuit of a contactless semiconductor switching element and a resistor is provided in parallel to a d.c. smoothing capacitor, and a control circuit is provided for receiving a signal for turning on the switching element selectively at any time after the power source is interrupted, thereby discharging the electric charge on the d.c. smoothing capacitor.

摘要翻译： 在可变频率电源单元中，非接触式半导体开关元件和电阻器的串联电路与直流电源并联设置。 平滑电容器，并且提供控制电路，用于在电源中断之后的任何时间选择性地接收用于接通开关元件的信号，从而在直流电上放电。 平滑电容器。

公开(公告)号：US5279476A

公开(公告)日：1994-01-18

申请号：US837905

申请日：1992-02-20

申请人： Hiroshi Fujii ,  Tomihiro Nakagawa

发明人： Hiroshi Fujii ,  Tomihiro Nakagawa

IPC分类号： G11B23/087 ,  G11B23/04

CPC分类号： G11B23/08735

摘要： A tape cassette including a rib projecting upwardly from a bottom wall of a cassette case at a position between the center and one side of a tape drawing recess formed at the front of the cassette case, the rib being disposed close to the back surface of the tape, and a projection that projects from a back lid which, in a closed position, protects the back surface of the tape. When the back lid is rotated to reach an open position, the projection is kept in contact with an upper end of the rib. Accordingly, even when a part of the tape is lifted by the back lid during a lid opening operation, the tape is prevented from entering behind the rib, thereby also preventing tape jamming and damage to the tape player.

摘要翻译： 一种盒式磁带，其包括在盒壳体的底壁处在形成在盒壳体的前部的磁带引出凹部的中心和一侧之间的位置处向上突出的肋，所述肋布置成靠近磁带盒的背面 胶带，以及从后盖突出的突出部，其在关闭位置保护胶带的背面。 当后盖旋转到达打开位置时，凸起与肋的上端保持接触。 因此，即使当在打开盖操作期间一部分带被后盖抬起时，防止带子进入到肋后面，从而也防止胶带卡住和损坏磁带播放机。

公开(公告)号：US5175483A

公开(公告)日：1992-12-29

申请号：US763144

申请日：1991-09-20

申请人： Hiroshi Fujii ,  Atsuhiko Nakamura ,  Takatsugu Kambara ,  Satoshi Ibori

发明人： Hiroshi Fujii ,  Atsuhiko Nakamura ,  Takatsugu Kambara ,  Satoshi Ibori

IPC分类号： H02P27/06 ,  H02P21/00 ,  H02P27/04

CPC分类号： H02P21/143 ,  H02P21/13 ,  H02P21/16 ,  H02P27/047 ,  H02P21/00

摘要： In a motor speed controller for controlling an AC motor to be driven at a variable speed, a signal proportional to a load torque and a signal proportional to an output torque of the AC motor are found by current detecting means for detecting the primary current of the AC motor, and integrated over the speed changing period, and the integrated values are divided by the values corresponding to the amounts of speed change during the speed changing period so that the moment of inertia can be computed. In addition, there is provided means for changing the rate of output frequency change caused by the output frequency command into a value according to the calculated moment of inertia. Moreover, there is provided a circuit for detecting a sudden change of the calculated moment of inertia, so that when a sudden change occurs, an abnormality signal is generated.