公开(公告)号：US20170229923A1

公开(公告)日：2017-08-10

申请号：US15581303

申请日：2017-04-28

Applicant: FUJITSU LIMITED

Inventor： SATOSHI SHIMOKAWA ,  Akiyoshi Uchida

IPC: H02J50/12 ,  H02J50/40 ,  H04B5/00 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/40 ,  H02J50/50 ,  H02J50/80 ,  H04B5/0037

Abstract: A power receiver includes a secondary-side resonance coil including a resonance coil part to receive power from a primary-side resonance coil by magnetic resonance; a capacitor in the resonance coil part of the secondary-side resonance coil; a series circuit of first and second switches connected in parallel with the capacitor; a first rectifier connected in parallel with the first switch, and having a first rectification direction; a second rectifier connected in parallel with the second switch, and having a second rectification direction opposite to the first rectification direction; a detector to detect a waveform of a power supply supplied to the secondary-side resonance coil; and a controller to adjust the waveform, and a phase difference between first and second signals to switch on and off the first and second switches, respectively, to adjust the power to be received by the secondary-side resonance coil.

公开(公告)号：US20170207667A1

公开(公告)日：2017-07-20

申请号：US15479582

申请日：2017-04-05

Applicant: FUJITSU LIMITED

Inventor： SATOSHI SHIMOKAWA

IPC: H02J50/12 ,  H04B5/00 ,  H02J50/80 ,  H02J7/02 ,  H02J50/40

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0031 ,  H04B5/0037

Abstract: A power receiver includes: a first secondary-side resonant coil that receives electric power from a primary-side resonant coil through magnetic field resonance; a capacitor; a smoothing circuit; a pair of output terminals; a switch coupled in parallel to the capacitor or in series between a rectifier circuit and either a first terminal or a second terminal; and a drive controller that drives the switch through a first PWM drive pattern determined by a first duty cycle and by a first frequency that is less than or equal to a frequency of the magnetic field resonance. The first duty cycle is set based on a first efficiency of power reception of the first secondary-side resonant coil, a first rated output of a first load, a second efficiency of power reception of a second secondary-side resonant coil of another power receiver, and a second rated output of a second load.

公开(公告)号：US20140333151A1

公开(公告)日：2014-11-13

申请号：US14444816

申请日：2014-07-28

Applicant: FUJITSU LIMITED

Inventor： Kiyoto Matsui ,  SATOSHI SHIMOKAWA

IPC: H01F38/14 ,  H02J7/02 ,  H04B5/00

CPC classification number: H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90 ,  H04B5/0037

Abstract: A power transmitting apparatus includes a power transmission or reception circuit, a first coil connected to the power transmission or reception circuit through wires, a plurality of resonance coils having respective, different diameters one of which is selectively coupled to the first coil through electromagnetic induction, and a position control apparatus configured to control the positions of the resonance coils, wherein the position control apparatus is configured to selectively align an axial direction of one of the resonance coils with an axial direction of the first coil.

Abstract translation: 电力传输装置包括电力传输或接收电路，通过电线连接到电力传输或接收电路的第一线圈，具有不同直径的多个谐振线圈，其中一个谐振线圈通过电磁感应选择性地耦合到第一线圈， 以及位置控制装置，被配置为控制所述共振线圈的位置，其中所述位置控制装置被配置为选择性地使所述谐振线圈中的一个的轴向与所述第一线圈的轴向对齐。

公开(公告)号：US20230038440A1

公开(公告)日：2023-02-09

申请号：US17748090

申请日：2022-05-19

Applicant: FUJITSU LIMITED

Inventor： MASAHARU HIDA ,  SATOSHI SHIMOKAWA ,  Hidetoshi MATSUOKA

IPC: G06Q10/08

Abstract: A non-transitory computer-readable storage medium storing a route search program that causes a computer to execute a process that includes acquiring a storage period of an item for each point of a plurality of points in a case where the item is moved from a departure point to a destination point, the plurality of points including the departure point, the destination point, and one or more relay points; and searching for a route along which the item is moved from the departure point to the destination point based on a traveling cost, storage information, and the acquired storage period, a traveling cost indicating a cost for moving the item between each two points of the plurality of points, the storage information indicating a storage coefficient being used for calculation of a storage cost of the item at each point of the plurality of points in accordance with the storage period.

公开(公告)号：US20200210853A1

公开(公告)日：2020-07-02

申请号：US16661265

申请日：2019-10-23

Applicant: FUJITSU LIMITED

Inventor： SATOSHI SHIMOKAWA

IPC: G06N3/12 ,  G06N3/08 ,  G06K9/62

Abstract: An optimization calculation method includes: generating, by a computer, current generation individuals with a selected previous generation individual as a parent individual; evaluating each current generation individual by using a predetermined evaluation function; calculating a current generation constraint condition value based on a previous generation constraint condition value and a constraint condition provisional value which is achieved by more than half of the current generation individuals; determining whether a result of the evaluation for each current generation individual satisfies the current generation constraint condition value; determining a predetermined offset based on an attribute of each individual, which is generated by a mutation generating process, among individuals having the evaluation results satisfying the current generation constraint condition value; and adding the predetermined offset to a random number used to generate each next generation individual by the mutation generating process.

公开(公告)号：US20170063166A1

公开(公告)日：2017-03-02

申请号：US15350243

申请日：2016-11-14

Applicant: FUJITSU LIMITED

Inventor： SATOSHI SHIMOKAWA ,  Akiyoshi Uchida

IPC: H02J50/12 ,  H02J50/40 ,  H02J50/90 ,  H02J7/02

CPC classification number: H02J50/80 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0081

Abstract: A power receiver which wirelessly receives power from at least one power source using one of magnetic field resonance and electric field resonance, including a power receiver coil, an internal circuit, a power detection resistor, a switch, a power reception control unit, and a communication circuit unit. The power receiver coil wirelessly receives the power from the power source, and the internal circuit uses the power obtained by the power receiver coil. The power detection resistor detects the power obtained by the power receiver coil, and the switch applies a received power voltage obtained by the power receiver coil by switching to the power detection resistor. The power reception control unit controls the power detection resistor and the switch, and the communication circuit unit performs communication with the power source, comprising detection information of a received power and power supply timing information.

Abstract translation: 一种功率接收器，其使用磁场谐振和电场谐振中的一种从至少一个电源无线地接收功率，包括功率接收器线圈，内部电路，功率检测电阻器，开关，功率接收控制单元和 通信电路单元。 电力接收器线圈从电源无线地接收电力，并且内部电路使用由电力接收器线圈获得的功率。 电力检测电阻器检测由电力接收线圈获得的功率，并且开关通过切换到功率检测电阻器来施加由电力接收器线圈获得的接收电力电压。 电力接收控制单元控制电力检测电阻器和开关，并且通信电路单元执行与电源的通信，包括接收电力的检测信息和电源定时信息。

公开(公告)号：US20150318900A1

公开(公告)日：2015-11-05

申请号：US14800241

申请日：2015-07-15

Applicant: FUJITSU LIMITED

Inventor： SATOSHI SHIMOKAWA ,  Akiyoshi Uchida

IPC: H04B5/00 ,  H02J5/00

CPC classification number: H04B5/0037 ,  H02J5/005 ,  H02J7/025 ,  H02J50/05 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0031 ,  H04B5/0081

Abstract: A power receiver includes a resonance coil, an oscillation unit, a communication unit, and a control unit. The resonance coil is configured to wirelessly receive power from a power source using magnetic field resonance or electric field resonance, the oscillation unit is configured to output a voltage which oscillates at a predetermined frequency, and the communication unit is configured to communicate with the power source. The control unit is configured to receive an output from the communication unit, and adjust a resonance frequency of the resonance coil using an output voltage from the oscillation unit.

Abstract translation: 电力接收机包括谐振线圈，振荡单元，通信单元和控制单元。 谐振线圈被配置为使用磁场谐振或电场谐振从电源无线地接收电力，所述振荡单元被配置为输出以预定频率振荡的电压，并且所述通信单元被配置为与电源通信 。 控制单元被配置为从通信单元接收输出，并且使用来自振荡单元的输出电压来调节谐振线圈的谐振频率。

公开(公告)号：US20210064799A1

公开(公告)日：2021-03-04

申请号：US17000412

申请日：2020-08-24

Applicant: FUJITSU LIMITED

Inventor： Toshihisa Anazawa ,  Yoshihiko Imanaka ,  SATOSHI SHIMOKAWA ,  Hirotaka Oshima

IPC: G06F30/20 ,  G06N7/08

Abstract: A non-transitory computer-readable recording medium stores therein a design program for causing a computer to execute a process for designing a composition of a perovskite type crystal structure, the design program comprising causing a computer to determine a combination of Ai and Bi in the following formula (2) created by taking a logarithm of a formula of a tolerance factor (t) represented by the following formula (1), in which log t is 0 or close to 0, by executing ground state search by an annealing method using an Ising model or QUBO, t = ( r A + r X ) 2  ( r B + r X ) = d A  -  X 2  d B  -  X Formula   ( 1 ) log   t = ∑ i = 1 n  A i - ∑ i = 1 n  B i . Formula   ( 2 )

公开(公告)号：US20200336013A1

公开(公告)日：2020-10-22

申请号：US16917970

申请日：2020-07-01

Applicant: FUJITSU LIMITED

Inventor： SATOSHI SHIMOKAWA ,  Hirotaka Oshima

IPC: H02J50/12 ,  H02J50/80

Abstract: A power receiver includes: a secondary-side resonant coil that includes a resonant coil circuit and receives power from a primary-side resonant coil; a capacitor inserted into the resonant coil circuit; a series circuit including a first switch and a second switch; a first rectifying element having a first rectification direction; a second rectifying element having a second rectification direction; a detection circuit that detects a voltage or a current; a binarization processing circuit that outputs a rectangular wave obtained by binarizing the voltage or the current; a rectangular wave detection circuit that detects a rising or falling timing and a cycle of the rectangular wave; a reference clock generation circuit that generates a reference clock based on the rising or falling timing and the cycle; and a control circuit that generates a control clock used to switch on and off by adjusting a phase or a duty ratio.

公开(公告)号：US20160352154A1

公开(公告)日：2016-12-01

申请号：US15236655

申请日：2016-08-15

Applicant: FUJITSU LIMITED

Inventor： Kiyoto Matsui ,  SATOSHI SHIMOKAWA

IPC: H02J50/12 ,  H02J50/90 ,  H02J7/02 ,  H02J50/40

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J7/025 ,  H02J50/40 ,  H02J50/90 ,  H04B5/0037

Abstract: A power transmitting apparatus includes a plurality of primary-side resonant coils disposed along a conveyance path of a plurality of electronic devices and configured to utilize magnetic field resonance to transmit electric power to secondary-side resonant coils of the respective electronic devices conveyed along the conveyance path; and a plurality of phase adjusters connected between an alternating-current source and the respective primary-side resonant coils and configured to respectively adjust phases of the electric power, supplied to the primary-side resonant coils from the alternating-current source, so as to uniform the phases of the electric power, supplied to the primary-side resonant coils from the alternating-current source.

Abstract translation: 电力传输装置包括沿着多个电子设备的传送路径布置的多个初级侧谐振线圈，并且被配置为利用磁场谐振将电力传送到沿着传送器传送的各个电子设备的次级侧谐振线圈 路径; 以及多个相位调整器，连接在交流电源和各个初级侧谐振线圈之间，并且被配置为分别调节从交流电源提供给初级侧谐振线圈的电力的相位，以便 使来自交流电源的初级侧谐振线圈的电力相位均匀化。