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1. 发明授权

US09475520B2 Rotational-angle detection device and electric power-steering device provided with rotational-angle detection device 有权
标题翻译：旋转角度检测装置和具有旋转角度检测装置的电动助力转向装置
公开(公告)号：US09475520B2
公开(公告)日：2016-10-25
申请号：US14359417
申请日：2011-11-24
申请人： Kohei Yanai , Kenichiro Aoki
发明人： Kohei Yanai , Kenichiro Aoki
IPC分类号： G01B7/30 , B62D5/04 , G01D5/14 , G01B7/31 , G01D3/02
CPC分类号： B62D5/0481 , B62D5/0463 , G01B7/30 , G01B7/31 , G01D3/02 , G01D5/145
摘要： When a shaft misalignment detection part detects occurrence of a shaft misalignment that is a misalignment in a relative position in a radial direction of a rotary shaft between a magnet part and a sensor part, the shaft misalignment detection part outputs a shaft misalignment determination flag to a correction part and a control change instruction part. The correction part calculates a motor rotational angle so as to reduce a detection error caused by the shaft misalignment. The control change instruction part outputs instructions of changing calculation methods so that influence by the detection error decreases to an assist torque setting part and an assist current instruction part.
摘要翻译：当轴不对准检测部件检测到在磁体部分和传感器部件之间的旋转轴的径向方向上的相对位置处的未对准的轴未对准的发生时，轴未对准检测部件将轴未对准确定标志输出到校正部分和控制改变指令部分。校正部分计算电机旋转角度，以减小由轴未对准引起的检测误差。控制变更指示部输出改变计算方法的指令，使得检测误差的影响降低到辅助转矩设定部和辅助电流指令部。

2. 发明申请

US20140336878A1 ROTATIONAL-ANGLE DETECTION DEVICE AND ELECTRIC POWER-STEERING DEVICE PROVIDED WITH ROTATIONAL-ANGLE DETECTION DEVICE 有权
标题翻译：具有旋转角度检测装置的旋转角度检测装置和电动转向装置
公开(公告)号：US20140336878A1
公开(公告)日：2014-11-13
申请号：US14359417
申请日：2011-11-24
申请人： Kohei Yanai , Kenichiro Aoki
发明人： Kohei Yanai , Kenichiro Aoki
IPC分类号： B62D5/04 , G01B7/30
CPC分类号： B62D5/0481 , B62D5/0463 , G01B7/30 , G01B7/31 , G01D3/02 , G01D5/145
摘要： When a shaft misalignment detection part detects occurrence of a shaft misalignment that is a misalignment in a relative position in a radial direction of a rotary shaft between a magnet part and a sensor part, the shaft misalignment detection part outputs a shaft misalignment determination flag to a correction part and a control change instruction part. The correction part calculates a motor rotational angle so as to reduce a detection error caused by the shaft misalignment. The control change instruction part outputs instructions of changing calculation methods so that influence by the detection error decreases to an assist torque setting part and an assist current instruction part.
摘要翻译：当轴不对准检测部件检测到在磁体部分和传感器部件之间的旋转轴的径向方向上的相对位置处的未对准的轴未对准的发生时，轴未对准检测部件将轴未对准确定标志输出到校正部分和控制改变指令部分。校正部分计算电机旋转角度，以减小由轴未对准引起的检测误差。控制变更指示部输出改变计算方法的指令，使得检测误差的影响降低到辅助转矩设定部和辅助电流指令部。

3. 发明授权

US10137929B2 Electric power steering device for vehicle 有权
公开(公告)号：US10137929B2
公开(公告)日：2018-11-27
申请号：US14650706
申请日：2013-01-24
申请人： Kenichiro Aoki , Kenji Shibata , Takayoshi Tsujimoto
发明人： Kenichiro Aoki , Kenji Shibata , Takayoshi Tsujimoto
IPC分类号： B62D5/30 , B62D5/04
摘要： An electric power steering device for a vehicle includes a plurality of assist systems electromagnetically driving an electric motor. When a first or second assist system malfunctions, a malfunction state assist amount calculation part calculates an assist amount while decreasing a limit value at the vehicle stopping, to an amount smaller than a limit value at the vehicle moving. When a malfunction such as a disconnection or a fixing of the switching elements occurs in the first or second assist systems on the basis of a judgment result of a malfunction judgment function, an assist amount switching part supplies an assist amount received from the malfunction state assist amount calculation part to first and second motor drive control parts. When a malfunction occurs in one of the first and second assist systems, one of the first and second motor drive control parts drives the motor by using the assist amount.

4. 发明申请

US20150298726A1 STEERING CONTROL SYSTEM FOR VEHICLE AND STEERING CONTROL METHOD FOR VEHICLE 有权
标题翻译：车辆转向控制系统及车辆转向控制方法
公开(公告)号：US20150298726A1
公开(公告)日：2015-10-22
申请号：US14439817
申请日：2014-01-21
申请人： Kenichiro AOKI , Satoru MIKAMO , Naoki YAMANO
发明人： Kenichiro Aoki , Satoru Mikamo , Naoki Yamano
IPC分类号： B62D5/04 , B62D6/10
CPC分类号： B62D5/0463 , B62D5/0472 , B62D5/0484 , B62D5/049 , B62D6/10
摘要： A steering control system for a vehicle includes an electric motor, a torque sensor, an angular velocity sensor, and a control unit. The electric motor applies assist force to a turning operation of a steering wheel. The torque sensor detects a torque generated in a steering system including the steering wheel and varying with the turning operation. The angular velocity sensor detects an angular velocity generated in the steering system and varying with the turning operation. The control unit computes an assist control amount for the turning operation by using the torque and the angular velocity, and, when an abnormality occurs in a torque detection operation, increases a control amount computed by using the angular velocity among control amounts that constitute the assist control amount as compared to that when torque sensor operation is normal and executes drive control over the electric motor based on the assist control amount.
摘要翻译：车辆的转向控制系统包括电动机，转矩传感器，角速度传感器和控制单元。电动机对方向盘的转动操作施加辅助力。转矩传感器检测在包括方向盘的转向系统中产生的扭矩并随着转弯操作而变化。角速度传感器检测在转向系统中产生的角速度，并随转弯操作而变化。控制单元通过使用转矩和角速度来计算用于转弯操作的辅助控制量，并且当在转矩检测操作中发生异常时，增加通过使用构成辅助的控制量中的角速度计算出的控制量控制量与转矩传感器运转正常时相比，基于辅助控制量执行对电动机的驱动控制。

5. 发明授权

US08381869B2 Electric power steering device 失效
标题翻译：电动助力转向装置
公开(公告)号：US08381869B2
公开(公告)日：2013-02-26
申请号：US12672321
申请日：2009-03-25
申请人： Masaki Fujimoto , Masaharu Yamashita , Kenichiro Aoki , Megumu Nishikohri , Akihiro Ohtomo , Eiji Kasai , Tsutomu Onagi , Keitaro Niki
发明人： Masaki Fujimoto , Masaharu Yamashita , Kenichiro Aoki , Megumu Nishikohri , Akihiro Ohtomo , Eiji Kasai , Tsutomu Onagi , Keitaro Niki
IPC分类号： B62D5/04
CPC分类号： B62D5/046 , B62D5/0466 , B62D5/0481 , H02M1/32 , H02P29/00 , H02P29/0241 , H02P29/64
摘要： An electric power steering device for a vehicle includes an estimation mechanism estimating if there is a possibility that a backward electric current flows in a booster circuit toward a vehicle battery device, and a boosting controller stopping the boosting operation of the booster circuit to prevent a backward electric current from flowing in the booster circuit when it is estimated that there is a possibility that a backward electric current flows by the estimation mechanism. The estimation mechanism estimates that there is a possibility that a backward electric current flows in the booster circuit when the steering condition of a steering wheel is a returning condition or a steering-held condition. Otherwise, the estimation mechanism estimates if a backward electric current flows on the basis of input and output voltages of the booster circuit and information on the switching of a first boosting switching element. Thereby, overheat of the booster circuit can be prevented.
摘要翻译：一种用于车辆的电动助力转向装置，包括：估计机构，估计逆向电流是否在升压电路中朝向车辆电池装置流动，升压控制器停止升压电路的升压动作，以防止向后当估计有可能通过估计机构流动的反向电流时，在升压电路中流动的电流。估计机构估计当方向盘的转向条件是返回条件或转向保持状态时，有可能在升压电路中流过反向电流。否则，估计机构基于升压电路的输入和输出电压以及关于第一升压开关元件的切换的信息来估计反向电流是否流动。由此，可以防止升压电路的过热。

6. 发明授权

US08174791B2 Magnetic head and information storage device 失效
标题翻译：磁头和信息存储设备
公开(公告)号：US08174791B2
公开(公告)日：2012-05-08
申请号：US12750569
申请日：2010-03-30
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： G11B21/21
CPC分类号： G11B5/3133 , G11B5/17 , G11B5/3123 , G11B5/6005 , G11B5/6064 , G11B5/607 , G11B2005/0005
摘要： According to one embodiment, a magnetic head includes a magnetic pole layer including a magnetic pole extending along a layer, a coil layer configured to adjoin the magnetic pole layer and including a plurality of conductor patterns constituting a part of a coil wound around the magnetic pole and a resin which fills up a gap between the conductor patterns, a heater layer configured to adjoin the coil layer and including a heater extending in the heater layer via an area along a coil-forming region in which the conductor patterns in the coil layer are formed and an area along a no-coil region off the coil-forming region, and a transition-reluctant portion in that part of the no-coil region which adjoins the heater and having a glass transition temperature higher than that of the resin or not having any glass transition temperature.
摘要翻译：根据一个实施例，磁头包括磁极层，磁极层包括沿着一个层延伸的磁极;线圈层，被配置为邻接磁极层，并且包括多个导体图案，该导体图案构成卷绕在磁极上的线圈的一部分以及填充导体图案之间的间隙的树脂，配置成与线圈层相邻并且包括在沿着线圈形成区域的区域中延伸的加热器的加热器层，其中线圈层中的导体图案是形成的区域和沿着线圈形成区域的无线圈区域的区域以及与加热器相邻并且玻璃化转变温度高于树脂的玻璃化转变温度的那部分无线圈区域的过渡部分具有任何玻璃化转变温度。

7. 发明申请

US20100315746A1 HEAD GIMBAL ASSEMBLY AND FIXING METHOD OF BASE PLATE AND CARRIAGE ARM 审中-公开
标题翻译：基座组件和基板和运载ARM的固定方法
公开(公告)号：US20100315746A1
公开(公告)日：2010-12-16
申请号：US12850562
申请日：2010-08-04
申请人： Kenichiro Aoki , Toshiyuki Nakada
发明人： Kenichiro Aoki , Toshiyuki Nakada
IPC分类号： G11B21/16 , G11B5/127
CPC分类号： G11B5/4813 , Y10T29/49032
摘要： According to one embodiment, a head gimbal assembly includes: base plate body; flexure; through hole passing through the base plate body; cylindrical base that upstands from the front surface of the base plate body, and has a first inner diameter; a cylindrical flange that continues to the base around the through hole and has a second inner diameter smaller than the first inner diameter; and inner wall surface that is defined by the flange and extends along a cylindrical surface formed by a generating line parallel to a central axis of the through hole. A ratio of a thickness T of the flange defined along a virtual plane orthogonal to the central axis of the through hole to a length L of the inner wall surface defined in a direction parallel to the central axis of the through hole is set to 1.5 or less.
摘要翻译：根据一个实施例，头部万向架组件包括：基板主体; 弯曲通孔穿过基板体; 圆柱形基座，其从基板主体的前表面支撑，并具有第一内径; 圆筒形凸缘，其围绕所述通孔延伸到所述基部并且具有小于所述第一内径的第二内径; 以及由所述凸缘限定并且沿着由平行于所述通孔的中心轴线的发电线形成的圆柱形表面延伸的内壁表面。沿着与通孔的中心轴正交的虚拟平面限定的凸缘的厚度T与在通孔的中心轴线平行的方向限定的内壁面的长度L的比率设定为1.5或减。

8. 发明授权

US07382579B2 Magnetic head structure 失效
标题翻译：磁头结构
公开(公告)号：US07382579B2
公开(公告)日：2008-06-03
申请号：US11156902
申请日：2005-06-20
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： G11B5/147
CPC分类号： G11B5/3136 , G11B5/3106 , G11B5/3133
摘要： A magnetic head structure capable of reducing the quantity of protrusion of a portion of a floating surface, at which a coil is located, toward a disk has been disclosed. The head comprises a coil 22, a magnetic pole 26 allowing a magnetic flux generated by the coil to transmit therethrough and forming a magnetic gap 24, an insulating layer 32 surrounding the coil, and a protective film 34 covering the insulating layer and the magnetic pole and, if a first direction is defined as that in which the side of the floating surface 16 of the magnetic head structure extends when viewed in the direction in which the coil, the magnetic pole, the insulating layer, and the protective film are laminated, and a second direction is defined as that perpendicular to the first direction, the ratio of the maximum length of the insulating layer in the first direction to that in the second direction is equal to or greater than 1.5.
摘要翻译：已经公开了能够将线圈所在的浮动面的一部分的突出部朝向盘减少的磁头结构。磁头包括线圈22，允许由线圈产生的磁通透过并形成磁隙24的磁极26，围绕线圈的绝缘层32以及覆盖绝缘层和磁极的保护膜34 并且如果第一方向被定义为当从层叠线圈，磁极，绝缘层和保护膜的方向观察磁头结构的浮动表面16的一侧延伸时，并且第二方向被定义为垂直于第一方向的绝缘层在第一方向上的最大长度与第二方向上的最大长度的比等于或大于1.5。

9. 发明申请

US20080023468A1 Magnetic head 审中-公开
标题翻译：磁头
公开(公告)号：US20080023468A1
公开(公告)日：2008-01-31
申请号：US11594638
申请日：2006-11-08
申请人： Kenichiro Aoki , Toshiyuki Nakada
发明人： Kenichiro Aoki , Toshiyuki Nakada
IPC分类号： H05B6/16
CPC分类号： G11B5/314 , B82Y10/00 , B82Y25/00 , G11B5/3136 , G11B5/3909 , G11B5/3912 , G11B5/3967 , G11B5/5552 , G11B5/6011 , G11B2005/3996
摘要： A magnetic head has a read head in which a read element which converts recording magnetic flux emitted from the magnetic disk into an electric signal is disposed between a pair of shield layers on a substrate, and magnetically records information by emitting magnetic flux generated by a write current flowing through a write coil from a magnetic pole unit to a magnetic disk. A heater coil is disposed to face the write coil via an insulating layer, and a medium facing surface is caused to protrude toward the recording medium side by thermal expansion caused by electric power distribution and heating. Subsequent to the shield layer in the substrate side, a low thermal conducting layer made of a material having a low thermal conductivity which suppresses transmission of the heat caused by electric power distribution to and heating of the heater coil and a low thermal expansion layer which is disposed in the substrate side of the low thermal conducting layer and is made of a material having a low thermal expansion coefficient are disposed.
摘要翻译：磁头具有读取头，其中将从磁盘发射的记录磁通转换为电信号的读取元件设置在基板上的一对屏蔽层之间，并通过发出由写入产生的磁通量来磁记录信息从磁极单元流入写入线圈的电流到磁盘。加热器线圈经由绝缘层设置为面对写入线圈，并且通过由电力分配和加热引起的热膨胀使得介质面向表面朝向记录介质侧突出。在基板侧的屏蔽层之后，由热导率低的材料制成的低导热层，其抑制由电力分配引起的热量的传递和加热线圈的加热，以及低热膨胀层设置在低导热层的基板侧并且由具有低热膨胀系数的材料制成。

10. 发明申请

US20080019041A1 Magnetic head 失效
标题翻译：磁头
公开(公告)号：US20080019041A1
公开(公告)日：2008-01-24
申请号：US11593684
申请日：2006-11-07
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/17 , G11B5/3967 , G11B5/6011 , G11B5/6064
摘要： A magnetic head is composed of a write head which magnetically records information by emitting magnetic flux, which is generated by a write coil, from a magnetic pole unit to a recording medium; and a read head having a reading element which converts record magnetic flux, which is emitted from the recording medium, to an electric signal. In a write coil facing area facing an area in which the thin-film coil pattern of the write coil is disposed, a heater coil which causes a medium facing surface to protrude toward a recording medium side by thermal expansion caused by power distribution and overheating is disposed via an insulating layer. In the heater coil, a wide terminal pattern is disposed outside the write coil facing area, and a heater pattern having a width narrower than the terminal pattern is disposed in the write coil facing area.
摘要翻译：磁头由写磁头组成，写磁头通过从磁极单元发出由写入线圈产生的磁通量磁记录信息到记录介质; 以及读头，其具有将从记录介质发射的记录磁通转换为电信号的读取元件。在面向写入线圈的薄膜线圈图案的区域的写入线圈面对区域中，通过由配电和过热引起的热膨胀使介质面向表面朝向记录介质侧突出的加热器线圈是通过绝缘层设置。在加热器线圈中，在写入线圈面对区域的外部设置宽的端子图案，并且在写入线圈面对区域中设置有比端子图案窄的宽度的加热器图案。

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