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公开(公告)号：US20240079928A1
公开(公告)日：2024-03-07
申请号：US18272968
申请日：2021-01-27
Inventor： Mitsumasa MIZUNO , Kenji OKADA , Hideki TAMURA , Yuya AKO
IPC: H02K7/14 , H02K1/02 , H02K1/16 , H02K1/2706 , H02K1/28
CPC classification number: H02K7/14 , H02K1/02 , H02K1/16 , H02K1/2706 , H02K1/28
Abstract: An electric tool includes a motor. The motor includes a stator and a rotor. The rotor rotates with respect to the stator. At least one of the stator or the rotor includes a core (stator core or rotor core) that includes an oriented steel sheet.
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公开(公告)号：US20200328618A1
公开(公告)日：2020-10-15
申请号：US16305659
申请日：2017-02-02
Inventor： Takahiro OHORI , Hideki TAMURA , Yusuke TANJI , Shingo OKAURA
IPC: H02J50/12 , H02J7/00 , H02J50/80 , B60L53/122
Abstract: A contactless power feeding system includes: a primary circuit for supplying primary power to a power feeding coil; and a primary control circuit for controlling the primary circuit. The primary control circuit acquires, from a secondary control circuit, a secondary measured value and a secondary target value of secondary power received by a power receiving coil. The primary control circuit performs control processing and update processing alternately and repeatedly. The control processing is processing of controlling the primary circuit to bring the primary measured value into conformity with a primary target value. The update processing is processing of updating the primary target value. The update processing includes processing of calculating the primary target value based on transfer efficiency to be determined by the primary measured value and the secondary measured value and on the secondary target value.
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公开(公告)号：US20180034323A1
公开(公告)日：2018-02-01
申请号：US15549320
申请日：2016-03-11
Inventor： Yusuke TANJI , Hideki TAMURA , Kazumasa YOSHIDA
CPC classification number: H02J50/12 , B60L53/12 , B60L53/20 , B60M7/00 , H02J7/025 , H04B5/0037 , H04B5/0093 , Y02T10/7005 , Y02T10/7072 , Y02T90/122 , Y02T90/127 , Y02T90/14
Abstract: A control circuit controls a plurality of conversion switching elements by first drive signals and a plurality of adjustment switching elements by second drive signals. The control circuit is configured to adjust a phase difference which is a delay of the phase of each of the second drive signals to the phase of each of the first drive signals to a set value within a prescribed range to adjust the magnitude of output power. The prescribed range includes at least one of a range of 270 degrees to 360 degrees and a range of 90 degrees to 180 degrees.
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公开(公告)号：US20160072390A1
公开(公告)日：2016-03-10
申请号：US14785592
申请日：2014-04-17
Inventor： Yuichi AKUTAGAWA , Hideki TAMURA
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M1/44 , H02M3/33584 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: During a dead time, a resonance current generated by a load current that flows in a resonance inductor and a resonance current generated by an excitation current of a transformer flow in a resonance circuit constituted by the resonance inductor and capacitors that exist in parallel to respective switching elements. A controller performs a turning off operation on the switching elements at a timing that the resonance current generated by the load current and the resonance current generated by the excitation current are cancelled each other during the dead time.
Abstract translation: 在死区时间内，由在共振电感器中流动的负载电流产生的谐振电流和由变压器的励磁电流产生的谐振电流在由谐振电感器和与各开关并联存在的谐振电路构成的谐振电路中流动 元素。 控制器在死区时间内由负载电流产生的谐振电流和由激励电流产生的谐振电流相互抵消的时刻对开关元件执行截止操作。
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5.发明申请公开(公告)号：US20190304215A1
公开(公告)日：2019-10-03
申请号：US16365276
申请日：2019-03-26
Inventor： Yoshihiro TSUKAMOTO , Hideki TAMURA
Abstract: Safety around a vehicle can be improved when there is a disagreement between an operation state of the vehicle and the notification contents notified from the vehicle. Abnormality notifying apparatus includes a determiner that determines whether or not there is a disagreement in correspondence relationship between operation control and notification control based on a first signal related to the operation control of vehicle and a second signal related to the notification control for notifying notification information according to the operation control to outside vehicle. When there is a disagreement in correspondence relationship, abnormality notifying apparatus notifies information indicating that the vehicle is in an abnormal state to outside vehicle.
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Patent Agency Ranking
公开(公告)号：US20240097518A1
公开(公告)日：2024-03-21
申请号：US18274755
申请日：2021-12-20
Inventor： Hideki TAMURA , Mitsumasa MIZUNO , Yuya AKO , Kenji OKADA
CPC classification number: H02K3/38 , H02K3/345 , H02K15/022 , H02K15/026
Abstract: A stator includes a plurality of stator blocks aligned in a circumferential direction and a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks. The stator includes a plurality of insulation members electrically insulating from the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils. Each of the plurality of stator blocks includes a yoke portion located at its outermost perimeter, a teeth portion protruding from an inner peripheral surface of the yoke portion, and an insulating portion being electrically insulating and covering a surface of the teeth portion. Each of the plurality of insulation members includes a pair of insulating plates. Each of the pair of insulating plates has a width greater than a width of the teeth portion, and the pair of insulating plates are arranged to face each other across the teeth portion.
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公开(公告)号：US20240075600A1
公开(公告)日：2024-03-07
申请号：US18272578
申请日：2021-01-26
Inventor： Yusuke TANJI , Hideki TAMURA
IPC: B25B23/147 , B25B21/02
CPC classification number: B25B23/1475 , B25B21/02
Abstract: An electric tool includes a motor, an impact mechanism, an output shaft, a torque measuring unit, a fastening torque calculating unit, and a control unit. The output shaft receives, from the impact mechanism, rotational impact around an axis. The torque measuring unit measures, as measured torque, torque applied to the output shaft. The fastening torque calculating unit calculates, based on the measured torque measured by the torque measuring unit, fastening torque to be applied to a fastening member. The control unit performs a speed reducing function by changing, according to the fastening torque calculated by the fastening torque calculating unit, the number of revolutions of the motor from a first number of revolutions into a second number of revolutions. The second number of revolutions is smaller than the first number of revolutions.
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公开(公告)号：US20230280747A1
公开(公告)日：2023-09-07
申请号：US18197404
申请日：2023-05-15
Inventor： Eunhye CHO , Akiyoshi NAGUMO , Takenobu ARIMA , Jinsong DUAN , Hideki TAMURA
CPC classification number: G05D1/0061 , H04W4/44 , G05D2201/0213
Abstract: A vehicle communicating with first and second wireless communication terminal and second wireless communication terminals includes a manual driving mode and an autonomous driving mode. In the manual driving mode, when a predetermined relationship with the first wireless communication terminal is established, manual driving by the occupant is possible, and when the predetermined relationship with the first wireless communication terminal is not established, the manual driving is impossible, and when the predetermined relationship with the first wireless communication terminal is established, transition to the manual driving mode is possible. In the autonomous driving mode, when the predetermined relationship with the first wireless communication terminal is not established, the transition to the manual driving mode is impossible, and when the predetermined relationship with the first wireless communication terminal is not established, the transition to the manual driving mode is possible by a predetermined operation of the second wireless communication terminal.
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公开(公告)号：US20160087549A1
公开(公告)日：2016-03-24
申请号：US14787331
申请日：2014-04-23
Inventor： Hideki TAMURA , Kazunori KIDERA , Jin YOSHIZAWA
CPC classification number: H02M7/797 , H02J3/383 , H02J5/00 , H02M1/36 , H02M7/125 , H02M7/48 , H02M2001/007
Abstract: A power conditioner includes first and second power conversion portions, a smoothing capacitor, and an auxiliary power supply. The first power conversion portion is connected to a DC system. The second power conversion portion is connected to an AC system. The capacitor is connected between wires of an intermediate bus which connects input/output terminals of the first power conversion portion and the second power conversion portion. The auxiliary power supply receives commercial power and generates an auxiliary charge voltage to be applied to the capacitor. The first power conversion portion converts DC power of the storage battery to a first DC voltage and outputs the first DC voltage to the intermediate bus. The second power conversion portion converts a voltage of the capacitor to an AC voltage and outputs the AC voltage to the AC system. The auxiliary charge voltage is lower than the first DC voltage.
Abstract translation: 功率调节器包括第一和第二功率转换部分，平滑电容器和辅助电源。 第一电力转换部分连接到DC系统。 第二电力转换部分连接到AC系统。 电容器连接在连接第一电力转换部分的输入/输出端子和第二电力转换部分的中间总线的导线之间。 辅助电源接收商用电力，并产生要施加到电容器的辅助充电电压。 第一电力转换部将蓄电池的直流电力转换为第一直流电压，并将第一直流电压输出到中间总线。 第二电力转换部分将电容器的电压转换成AC电压，并将AC电压输出到AC系统。 辅助充电电压低于第一直流电压。
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公开(公告)号：US20240128809A1
公开(公告)日：2024-04-18
申请号：US18277989
申请日：2021-12-20
Inventor： Yuya AKO , Hideki TAMURA , Mitsumasa MIZUNO , Kenji OKADA
IPC: H02K1/16 , H02K1/2706
CPC classification number: H02K1/165 , H02K1/2706
Abstract: A stator includes: a plurality of stator blocks; a plurality of coils; and a supporter supporting the plurality of stator blocks. Each of the plurality of stator blocks includes: a yoke portion located at its outermost perimeter; and a teeth portion protruding from an inner peripheral surface of the yoke portion. The yoke portion has a width dimension along the circumferential direction, and the width dimension of the yoke portion is greater than a width dimension of the teeth portion along the circumferential direction. The supporter is closed in the circumferential direction. The supporter holds the plurality of stator blocks such that the plurality of stator blocks are housed in an interior of the supporter. The supporter has an inner peripheral surface in contact with at least an outer peripheral surface of the yoke portion of each of the plurality of stator blocks.
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