公开(公告)号：US06739664B2

公开(公告)日：2004-05-25

申请号：US10130745

申请日：2002-05-23

申请人： Yojiro Kinoshita ,  Nobuyuki Ueda ,  Toshiyuki Horiki ,  Kazuyuki Itoh

发明人： Yojiro Kinoshita ,  Nobuyuki Ueda ,  Toshiyuki Horiki ,  Kazuyuki Itoh

IPC分类号： A47C1024

CPC分类号： A47C1/03255 ,  A47C1/03283 ,  A47C7/46

摘要： A chair 1 allowing a person sitting thereon to move a part of the person's body above the waist which corresponds to the backrest of the chair is provided having a backrest portion located behind a seat portion, the backrest portion being divided into backrest upper frames 55 and backrest lower frames 50, wherein a first state which allows the whole backrest frame 5 to incline rearwardly and a second state which allows the backrest upper frames 55 to incline rearwardly relative to the backrest lower frames 50 are assumed, the first state and the second state being switchable to each other.

摘要翻译： 椅子1允许坐在其上的人将身体的一部分移动到与椅子的靠背相对应的腰部上方，具有位于座椅部分后面的靠背部分，靠背部分被分成靠背上框架55和 靠背下框架50，其中允许整个靠背框架5向后倾斜的第一状态和允许靠背上框架55相对于靠背下框架50向后倾斜的第二状态，第一状态和第二状态 可互相切换。

公开(公告)号：US06614667B1

公开(公告)日：2003-09-02

申请号：US09830102

申请日：2001-04-23

申请人： Kazuyuki Itoh ,  Yoshihisa Okita ,  Katsuaki Tanaka ,  Yoshinobu Takayanagi

发明人： Kazuyuki Itoh ,  Yoshihisa Okita ,  Katsuaki Tanaka ,  Yoshinobu Takayanagi

IPC分类号： H02M3335

CPC分类号： H02M1/08 ,  H03K17/04213 ,  H03K17/0424 ,  H03K2217/0036

摘要： A power conversion apparatus capable of reducing the conduction loss to achieve high efficiency yielding a downsized and weight-reduced apparatus and a method for driving such a power conversion apparatus is disclosed. A power conversion apparatus comprising a switching-element driving circuit which includes a current transformer having a primary coil connected to an current control type switching element, and a driving-current generating circuit formed of a secondary coil of the current transformer and a rectifying circuit connected to the secondary coil, wherein an output current generated in the driving-current generating circuit is supplied to the switching element as a driving current of the switching element, and a method for driving the switching element of such a power conversion apparatus are disclosed. This method comprises the steps of detecting an output current of the switching element, and extracting a part of the output current of the driving-current generating circuit out of the switching-element driving circuit so as to variably controlling the driving current of the switching element in response to the output current of the switching element. Preferably, the output current of the driving-current generating circuit extracted out of the switching-element driving circuit is supplied to any other auxiliary power supply as a regenerative power.

摘要翻译： 公开了一种能够降低传导损耗以实现高效率产生小型化和减重装置的电力转换装置和用于驱动这种电力转换装置的方法。 一种电力转换装置，包括开关元件驱动电路，该开关元件驱动电路包括具有连接到电流控制型开关元件的初级线圈的电流互感器以及由电流互感器的次级线圈形成的驱动电流产生电路和连接到电流互感器的整流电路 到二次线圈，其中在驱动电流产生电路中产生的输出电流作为开关元件的驱动电流被提供给开关元件，并且公开了一种用于驱动这种电力转换装置的开关元件的方法。 该方法包括以下步骤：检测开关元件的输出电流，并将驱动电流产生电路的输出电流的一部分提取出开关元件驱动电路，以便可变地控制开关元件的驱动电流 响应于开关元件的输出电流。 优选地，从开关元件驱动电路抽出的驱动电流产生电路的输出电流作为再生电力被提供给任何其它辅助电源。

公开(公告)号：US06316931B1

公开(公告)日：2001-11-13

申请号：US09484796

申请日：2000-01-18

申请人： Shiro Nakagawa ,  Kazuyuki Itoh ,  Yoshihisa Okita ,  Katsumi Yabusaki

发明人： Shiro Nakagawa ,  Kazuyuki Itoh ,  Yoshihisa Okita ,  Katsumi Yabusaki

IPC分类号： G01R3300

CPC分类号： G01V3/101 ,  G01R15/20

摘要： It is an object of the invention to provide a magnetic sensor and a current sensor that exhibit high performance at low costs. A magnetic sensor has a magnetic core (1) having a magnetic saturation property and a sensor coil (2) wound around the magnetic core (1). An end of a detection coil (20) is connected to an end of the sensor coil (2). The other end of the detection coil (20) is grounded. The magnetic sensor further comprises a drive circuit (3) and a detection circuit (4). The drive circuit (3) has a series resonance circuit part of which is made up of the sensor coil (2). To the sensor coil (2) the drive circuit (3) supplies a resonance current flowing into the series resonance circuit as an alternating current that allows the magnetic core (1) to reach a saturation region. The detection circuit (4) detects a magnetic field to be measured by detecting variations in resonance current flowing through the sensor coil (2).

摘要翻译： 本发明的目的是提供一种以低成本呈现高性能的磁传感器和电流传感器。 磁传感器具有磁饱和特性的磁芯（1）和缠绕在磁芯（1）上的传感器线圈（2）。 检测线圈（20）的一端连接到传感器线圈（2）的一端。 检测线圈（20）的另一端接地。 磁传感器还包括驱动电路（3）和检测电路（4）。 驱动电路（3）的串联谐振电路部分由传感器线圈（2）构成。 驱动电路（3）向传感器线圈（2）提供作为允许磁芯（1）达到饱和区域的交流电流流入串联谐振电路的谐振电流。 检测电路（4）通过检测流过传感器线圈（2）的谐振电流的变化来检测要测量的磁场。