公开(公告)号：US09030775B2

公开(公告)日：2015-05-12

申请号：US13104870

申请日：2011-05-10

申请人： Takanori Watanabe ,  Takuji Yamada ,  Susumu Ando ,  Hiroshi Iwai

发明人： Takanori Watanabe ,  Takuji Yamada ,  Susumu Ando ,  Hiroshi Iwai

IPC分类号： G11B19/20 ,  G11B25/04 ,  H02K5/04 ,  G11B33/14

CPC分类号： G11B19/2045 ,  G11B19/2036 ,  G11B25/043 ,  G11B33/148 ,  Y10T29/49639

摘要： In a disk drive device, a magnetic recording disk is mounted on a hub. A base rotatably supports the hub via a bearing unit. The base has a ring-shaped wall that surrounds the bearing unit and that protrudes towards the hub. A laminated core is fixed to the base. The laminated core has a ring portion and twelve teeth that radially outwardly extend from the ring portion. Coils are wound around the twelve teeth. The base includes an increasing-thickness portion formed so that the less the distance between a part of the increasing-thickness portion and the ring-shaped wall is, the thicker the part of the increasing-thickness portion becomes.

摘要翻译： 在磁盘驱动装置中，磁记录盘安装在集线器上。 基座通过轴承单元可旋转地支撑毂。 基座具有围绕轴承单元并朝向轮毂突出的环形壁。 层叠铁心固定在基座上。 层叠铁心具有环部分和从环部分径向向外延伸的十二个齿。 线圈缠绕在十二颗牙齿上。 基部包括增厚部分，其形成为增厚部分的一部分与环形壁之间的距离越小，增厚部分的部分越厚。

公开(公告)号：US08631677B2

公开(公告)日：2014-01-21

申请号：US12979268

申请日：2010-12-27

申请人： Yasuo Fukuzako ,  Hiroshi Iwai

发明人： Yasuo Fukuzako ,  Hiroshi Iwai

IPC分类号： B21J9/18

CPC分类号： G11B19/2036 ,  B21K1/04 ,  B21K23/00 ,  F16C17/045 ,  F16C33/14 ,  F16C2220/40 ,  F16C2220/70 ,  F16C2223/42 ,  F16C2223/70 ,  F16C2223/80 ,  F16C2226/12 ,  F16C2226/40 ,  F16C2370/12 ,  Y10T29/49639 ,  Y10T29/49673

摘要： A thrust dynamic pressure pattern is marked on a rotating member or fixed member set on a rest table. A pressure for marking is applied to a member to be marked in a cycle of applying and releasing the pressure, and a supplemental force for keeping the member to be marked, still is separately applied. According to the present embodiment, a rotating device can be provided that narrows down a bearing gap and improves the efficiency of raking up a lubricant so as to increase the dynamic pressure by reducing the deformation of the shape of the protrusions of a thrust dynamic pressure pattern and the variation in the height of the protrusions when forming the thrust dynamic pressure pattern in a method of producing a rotating device.

摘要翻译： 在设置在休息台上的旋转构件或固定构件上标记推力动态压力图案。 在施加和释放压力的循环中对要标记的构件施加标记压力，并且还单独施加用于保持要标记的构件的补充力。 根据本实施方式，能够提供使轴承间隙变窄的旋转装置，提高润滑剂的上升效率，通过减小推力动态图案的突起的形状变形来提高动态压力 以及在制造旋转装置的方法中形成推力动态压力图案时突起的高度的变化。

公开(公告)号：US08451557B2

公开(公告)日：2013-05-28

申请号：US12871508

申请日：2010-08-30

申请人： Kazuyoshi Nagai ,  Hiroshi Iwai

发明人： Kazuyoshi Nagai ,  Hiroshi Iwai

IPC分类号： G11B5/82

CPC分类号： G11B33/08 ,  G11B19/2018 ,  G11B25/043 ,  H02K1/187

摘要： In a disk drive device, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub through a bearing unit. A projecting portion is formed on the upper surface of the base plate having a cylindrical side surface centered along the rotational axis of the motor. A laminated core is formed by laminating magnetic steel sheets and has a ring portion and a plurality of teeth radially extending from the ring portion. The disk drive device has a tubular vibration-deadening ring. The outer surface of the vibration-deadening ring is press-fitted into the ring portion at least at a position, along the motor's rotational axis, closer to the upper surface than to the lower surface of the laminated core; and the inner surface of the vibration-deadening ring is fixed to the side surface of the projecting portion.

摘要翻译： 在磁盘驱动装置中，将磁记录盘安装在轮毂上。 基板通过轴承单元可旋转地支撑毂。 突起部分形成在基板的上表面上，其具有沿电动机的旋转轴线居中的圆柱形侧表面。 通过层压电磁钢板形成层叠铁芯，并且具有环形部分和从环形部分径向延伸的多个齿。 磁盘驱动装置具有管状振动消音环。 减震环的外表面至少在电动机的旋转轴线处至少位于比上述层叠铁芯的下表面更靠近上表面的环形部分中; 并且防振环的内表面固定到突出部分的侧表面。

公开(公告)号：US08213114B2

公开(公告)日：2012-07-03

申请号：US12545751

申请日：2009-08-21

申请人： Takanori Watanabe ,  Hiroshi Iwai ,  Tomoyuki Tashiro

发明人： Takanori Watanabe ,  Hiroshi Iwai ,  Tomoyuki Tashiro

IPC分类号： G11B17/02

CPC分类号： G11B19/2009 ,  G11B19/2045 ,  H02K3/28

摘要： The disk drive device includes a base member, a hub, a bearing unit which is arranged on the base member and which rotatably supports the hub, and a spindle drive unit which drives the hub to rotate. The spindle drive unit includes a stator core having a salient pole, a coil wound around the salient pole and a magnet opposed to the salient pole. The hub formed of magnetic material includes an outer cylinder portion engaged with an inner circumference of a recording disk and an inner cylinder portion to which an outer circumference of the magnet is fixed. The diameter of the inner cylinder portion is larger than the diameter of the outer cylinder portion.

摘要翻译： 盘驱动装置包括基座构件，轮毂，布置在基座构件上并且可旋转地支撑轮毂的轴承单元和驱动轮毂旋转的主轴驱动单元。 主轴驱动单元包括具有凸极的定子芯，缠绕在凸极上的线圈和与凸极相对的磁体。 由磁性材料构成的毂包括与记录盘的内周接合的外筒部和固定有磁体的外周的内筒部。 内筒部的直径大于外筒部的直径。

公开(公告)号：US08089312B2

公开(公告)日：2012-01-03

申请号：US12679503

申请日：2008-11-25

申请人： Motoyuki Okayama ,  Hiroshi Iwai ,  Motohiko Sako ,  Hidenori Kitamura ,  Yuta Yamamoto

发明人： Motoyuki Okayama ,  Hiroshi Iwai ,  Motohiko Sako ,  Hidenori Kitamura ,  Yuta Yamamoto

IPC分类号： H03F1/14

CPC分类号： H04B1/18

摘要： An amplifying circuit with a bypassing function includes an input terminal to which a signal is input from an antenna, an amplifier connected to the input terminal, a first inductor connected between the input port and a ground, and a bypass circuit connected between the input terminal and the output port of the amplifier. The bypass circuit includes a first port connected to the input terminal, a second port connected to the output port of the amplifier, a switch, a capacitor, and a second inductor. The switch is connected in series between the first and second ports. The capacitor is connected in series to the switch between the first and second ports. The second inductor is connected in series to the switch and the capacitor between the first and second ports. Signal power is not reduced drastically even when the signal passes through the bypass circuit.

摘要翻译： 具有旁路功能的放大电路包括从天线输入信号的输入端子，连接到输入端子的放大器，连接在输入端口和地之间的第一电感器以及连接在输入端子之间的旁路电路 和放大器的输出端口。 旁路电路包括连接到输入端的第一端口，连接到放大器的输出端口的第二端口，开关，电容器和第二电感器。 开关串联连接在第一和第二端口之间。 电容器与第一和第二端口之间的开关串联连接。 第二电感器串联连接到开关和第一和第二端口之间的电容器。 即使信号通过旁路电路，信号功率也不会急剧下降。

公开(公告)号：US08000379B2

公开(公告)日：2011-08-16

申请号：US11917792

申请日：2006-06-30

申请人： Takaaki Kishigami ,  Hiroshi Iwai

发明人： Takaaki Kishigami ,  Hiroshi Iwai

IPC分类号： H04B1/00

CPC分类号： H04B1/18 ,  H04B1/0458 ,  H04B2201/70701

摘要： An object of the invention is to stabilize the convergence operation at the automatic impedance matching time and ensure the reception quality in the convergence process in a fading environment in a radio communication apparatus which performs automatic impedance matching between an antenna and a Radio frequency section to decrease the impedance matching loss, for example, when the apparatus is brought close to a human body. A radio communication apparatus of the invention includes a Radio frequency section 3 which converts a received signal into a baseband signal, a variable impedance unit 2 which adjusts impedance between an antenna 1 and the Radio frequency section 3, a pilot signal extraction unit 4 which extracts a pilot signal from the baseband signal, a first channel compensation unit 5 which performs channel compensation using an output of the pilot signal extraction unit, an impedance control adequacy detection unit 7 which detects impedance control adequacy using an output of the first channel compensation unit, an impedance control unit 8 which controls the variable impedance unit 2 using an output of the impedance control adequacy detection unit, a second channel compensation unit 6 which performs channel compensation using the pilot signal, and a demodulation section 9 which performs the demodulation operation using an output of the second channel compensation unit.

摘要翻译： 本发明的一个目的是在自动阻抗匹配时间稳定收敛操作，并且确保在天线和射频部分之间进行自动阻抗匹配的无线电通信装置的衰落环境中的收敛过程中的接收质量降低 阻抗匹配损失，例如当该装置靠近人体时。 本发明的无线通信装置具有将接收信号转换为基带信号的射频部3，调整天线1与射频部3之间的阻抗的可变阻抗部2，提取出导频信号提取部4 来自基带信号的导频信号，使用导频信号提取单元的输出进行信道补偿的第一信道补偿单元5，使用第一信道补偿单元的输出来检测阻抗控制充分性的阻抗控制适合度检测单元7， 阻抗控制单元8，其使用阻抗控制充分性检测单元的输出来控制可变阻抗单元2;第二信道补偿单元6，其使用导频信号进行信道补偿;以及解调单元9，其使用 输出第二通道补偿单元。

公开(公告)号：US20100022197A1

公开(公告)日：2010-01-28

申请号：US12439103

申请日：2007-09-11

申请人： Akira Kato ,  Hiroshi Iwai ,  Atsushi Yamamoto

发明人： Akira Kato ,  Hiroshi Iwai ,  Atsushi Yamamoto

IPC分类号： H04B1/40 ,  H04M1/00 ,  H04N7/16

CPC分类号： H04B1/3805 ,  H04B1/005

摘要： A portable wireless communication apparatus is provided with antenna elements; a mobile phone signal processing circuit; a DTV tuner for receiving DTV low-band frequency signals and DTV high-band frequency signals; impedance matching circuits for the mobile phone signal processing circuit; and impedance matching circuits for the DTV tuner for receiving the DTV low-band frequency signals and DTV high-band frequency signals. A switch is changed to select either the DTV low-band frequency signals or the DTV high-band frequency signals, and output the selected signals to the DTV tuner. A tuner controller controls the switch to select the DTV high-band frequency signals by using the antenna element for transmission from the mobile phone signal processing circuit.

摘要翻译： 便携式无线通信装置设置有天线元件; 手机信号处理电路; DTV调谐器，用于接收DTV低频信号和DTV高频信号; 用于手机信号处理电路的阻抗匹配电路; 以及用于DTV调谐器的用于接收DTV低频带频率信号和DTV高频带频率信号的阻抗匹配电路。 改变开关以选择DTV低频带频率信号或DTV高频带频率信号，并将选择的信号输出到DTV调谐器。 调谐器控制器通过使用用于从移动电话信号处理电路传输的天线元件来控制开关来选择DTV高频带频率信号。

公开(公告)号：US07525493B2

公开(公告)日：2009-04-28

申请号：US11896252

申请日：2007-08-30

申请人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Tsutomu Sakata

发明人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Tsutomu Sakata

IPC分类号： H01Q1/24

CPC分类号： H01Q3/2617 ,  H01Q1/245 ,  H04B7/0814 ,  H04B7/0817

摘要： An adaptive antenna apparatus comprises M receiving circuits, and N antenna elements, N being larger than M. The N antenna elements constitute a plurality of sets of partial array antennas each including M antenna elements among the N antenna elements, and a straight line passing through feeding points of two of the antenna elements included in any one of the partial array antennas has a different direction from a further straight line passing through feeding points of two of the antenna elements included in any one of the other partial array antennas. A control means adaptively controls the receiving circuits to adjust at least one of an amplitude and a phase of each radio frequency signal, and adaptively controls an antenna switching means to connect the antenna elements included in one of the plurality of sets of partial array antennas to their corresponding receiving circuits.

摘要翻译： 自适应天线装置包括M个接收电路，N个天线元件N大于M.N个天线元件构成多个部分阵列天线组，每个天线元件包括N个天线元件中的M个天线元件，以及直线通过 包括在任何一个部分阵列天线中的两个天线元件的馈电点与通过包括在任何一个其它局部阵列天线中的两个天线元件的馈送点的另一直线具有不同的方向。 控制装置自适应地控制接收电路来调整每个射频信号的振幅和相位中的至少一个，并且自适应地控制天线切换装置将包括在多组部分阵列天线之一中的天线元件连接到 其相应的接收电路。

公开(公告)号：US20080048250A1

公开(公告)日：2008-02-28

申请号：US11846369

申请日：2007-08-28

申请人： Hisayo MOMOSE ,  Hiroshi Iwai ,  Masanobu Saito ,  Tatsuya Ohguro ,  Mizuki Ono ,  Takashi Yoshitomi ,  Shinichi Nakamura

发明人： Hisayo MOMOSE ,  Hiroshi Iwai ,  Masanobu Saito ,  Tatsuya Ohguro ,  Mizuki Ono ,  Takashi Yoshitomi ,  Shinichi Nakamura

IPC分类号： H01L27/06

CPC分类号： H01L29/66575 ,  H01L21/2255 ,  H01L21/2256 ,  H01L21/28211 ,  H01L27/0629 ,  H01L27/088 ,  H01L29/42364 ,  H01L29/42372 ,  H01L29/78

摘要： A semiconductor device comprises: a p-type semiconductor substrate (1); an insulating film (3); a gate electrode (2) formed on the substrate via the insulating film; and an n-type source/drain region (5) formed on both sides of a channel forming region (4) located under the gate electrode (2) formed on the substrate (1). In particular, the thickness (TOX) of the insulating film (3) is determined to be less than 2.5 nm at conversion rate of silicon oxide film (silicon oxide equivalent thickness); a gate length (Lg) of the gate electrode (2) is determined to be equal to or less than 0.3 μm; and further a voltage applied to the gate electrode (2) and the drain region (6) is determined to be 1.5 V or less. Therefore, in the MOSFET having the tunneling gate oxide film (3), the reliability of the transistor under the hot carrier stress can be improved, and the gate leakage current can be reduced markedly, so that the transistor characteristics can be improved markedly.

摘要翻译： 半导体器件包括：p型半导体衬底（1）; 绝缘膜（3）; 经由所述绝缘膜形成在所述基板上的栅电极（2） 以及形成在形成在基板（1）上的栅电极（2）下方的沟道形成区域（4）的两侧的n型源极/漏极区域（5）。 特别地，在氧化硅膜的转换率（氧化硅当量厚度）下，确定绝缘膜（3）的厚度（T×OX ）小于2.5nm。 栅极（2）的栅极长度（L SUB）确定为等于或小于0.3μm; 并且进一步施加到栅极（2）和漏极区（6）的电压被确定为1.5V或更小。 因此，在具有隧穿栅极氧化膜（3）的MOSFET中，可以提高热载流子应力下的晶体管的可靠性，并且可以显着降低栅极漏电流，从而可以显着提高晶体管特性。

公开(公告)号：US20070182634A1

公开(公告)日：2007-08-09

申请号：US10577685

申请日：2004-10-28

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa ,  Shotaro Nishimura ,  Hirotaka Ishihara

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa ,  Shotaro Nishimura ,  Hirotaka Ishihara

IPC分类号： H01Q1/38

CPC分类号： H01Q3/242 ,  H01Q3/28 ,  H01Q3/36 ,  H01Q13/06 ,  H01Q21/205

摘要： Four antenna units arranged adjacent to each other are respectively connected to switches, and are connected to load impedance elements via the switches, or connected to an output terminal and a comparator via a switch. Another ends of the load impedance elements are grounded. The comparator judges which antenna unit receives a radio signal having the maximum signal level among the antenna units. A controller controls the switches and the switch so that the antenna unit that receives the radio communication signal having the maximum signal level is connected to the output terminal and the other antenna units are connected to the load impedance elements.

摘要翻译： 彼此相邻布置的四个天线单元分别连接到开关，并且经由开关连接到负载阻抗元件，或者经由开关连接到输出端子和比较器。 负载阻抗元件的另一端接地。 比较器判断哪个天线单元在天线单元中接收到具有最大信号电平的无线电信号。 控制器控制开关和开关，使得接收具有最大信号电平的无线电通信信号的天线单元连接到输出端，而其它天线单元连接到负载阻抗元件。