Patents by Inventor Akiyoshi Uchida

Akiyoshi Uchida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210216756
    Abstract: A non-transitory computer-readable recording medium stores therein a judgment program that causes a computer to execute a process including acquiring a captured image including a face to which a plurality of markers are attached at a plurality of positions that are associated with a plurality of action units, specifying each of the positions of the plurality of markers included in the captured image, judging an occurrence intensity of a first action unit associated with a first marker from among the plurality of action units based on a judgment criterion of an action unit and a position of the first marker from among the plurality of markers, and outputting the occurrence intensity of the first action unit by associating the occurrence intensity with the captured image.
    Type: Application
    Filed: December 14, 2020
    Publication date: July 15, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Akiyoshi Uchida, JUNYA SAITO, Akihito Yoshii
  • Publication number: 20210216821
    Abstract: A non-transitory computer-readable recording medium stores therein a training data generating program that causes a computer to execute a process including acquiring a captured image including a face, specifying a position of a marker included in the captured image, selecting a first action unit from among a plurality of action units based on a judgment criterion of an action unit and the position of the specified marker, generating an image by performing image processing of deleting the marker from the captured image, and generating training data for machine learning by adding information on the first action unit,to the generated image.
    Type: Application
    Filed: December 11, 2020
    Publication date: July 15, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Akiyoshi Uchida, JUNYA SAITO, Akihito Yoshii
  • Patent number: 10727700
    Abstract: A power-transmission system includes a power transmitter; receivers that each receive power by electricity via a space from the power transmitter; a first determiner configured to determine based on power-data concerning rated-power each received from the receivers and the received power whether the receiver excessive in the received power and the receiver insufficient in the received power are present; a second determiner that determines whether the received power of the receiver excessive in the received power is equal to or larger than a predetermined value; and a command generator configured to transmit, to the receiver determined as having the received power equal to or larger than the predetermined value by the second determiner, a command for reducing the received power with the receivers to be equal to or smaller than a predetermined target value.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 28, 2020
    Assignee: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Publication number: 20200220390
    Abstract: A method implemented by a processor of controlling a power receiver including a secondary-side resonant coil configured to receive power transmitted by magnetic field resonance or electric field resonance from a primary-side resonant coil of a power transmitter, the method includes: executing a motion detection processing that includes detecting a predetermined motion of a user; executing a mode control processing that includes starting a detection mode of detecting a beacon signal transmitted by the power transmitter when the predetermined motion is detected by the motion detection processing; and executing a response signal transmission processing that includes transmitting a response signal to the beacon signal when the beacon signal is detected in the detection mode.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Applicant: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Patent number: 10693322
    Abstract: A wireless power transfer control method for a system including at least one power source and at least two power receivers, wirelessly transfers power from the power source to each of the power receivers using one of magnetic field resonance and electric field resonance, including a simultaneous power transfer mode in which power is simultaneously transferred to the power receivers; and a time-division power transfer mode in which power is sequentially transferred to the power receivers by time-division switching. The wireless power transfer control method includes setting an evaluation index for each of the power receivers; and performing wireless power transfer by switching between the simultaneous power transfer mode and the time-division power transfer mode, on the basis of the evaluation index.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: June 23, 2020
    Assignee: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Patent number: 10523056
    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.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: December 31, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Satoshi Shimokawa, Akiyoshi Uchida
  • Publication number: 20190348855
    Abstract: A power transmission apparatus for transmitting electric power to one or more power receivers each including a secondary-side resonant coil, the power transmission apparatus includes: a primary-side resonant coil configured to transmit electric power by magnetic field resonance or electric field resonance; a high-frequency power supply configured to output transmission electric power with high-frequency to the primary-side resonant coil; and a processor configured to control the transmission electric power output from the high-frequency power supply to the primary-side resonant coil and determine whether the one or more power receivers perform a charging operation, based on an impedance of the primary-side resonant coil which is seen from the high-frequency power supply side.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 14, 2019
    Applicant: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Patent number: 10476311
    Abstract: A power receiver includes: a secondary-side resonant coil configured to receive electric power from a primary-side resonant coil through magnetic field resonance generated; a capacitor inserted in series in a resonant coil part of the secondary-side resonant coil; a series circuit, coupled in parallel with the capacitor, of a first switch and a second switch; a first rectifier coupled in parallel with the first switch, the first rectifier having a first rectification direction; a second rectifier coupled in parallel with the second switch and having a second rectification direction; a detector configured to detect the electric power received by the secondary-side resonant coil; and a controller configured to adjust phases of a first signal for switching on/off the first switch and of a second signal for switching on/off the second switch to adjust an amount of the electric power received by the secondary-side resonant coil.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 12, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hirotaka Oshima, Satoshi Shimokawa, Akiyoshi Uchida
  • Patent number: 10476319
    Abstract: A communication circuit receives information enabling computation of a power supply efficiency of the highest-priority power receiving device when supplying power to the power receiving devices as the power supply targets. A power supply circuit is capable of supplying power to a plurality of power receiving devices. A processor computes the power supply efficiency of the highest-priority power receiving device when supplying power to the power receiving devices as the power supply targets, decides the power receiving devices as the power supply targets so that an estimated supplied power is within a power supply capacity of the power supply circuit when supplying power to the power receiving devices as the power supply targets, and controls power supply so as to supply power to the decided the power receiving devices as the power supply targets.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: November 12, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Toshihiro Azami, Akiyoshi Uchida
  • Patent number: 10424966
    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 rectifier circuit that rectifies alternating-current power; a smoothing circuit; a pair of output terminals; a switch, inserted in series on a line between the rectifier circuit and the smoothing circuit, that switches a state of the line, and a drive controller that drives the switch through a first PWM drive pattern determined by a first duty cycle and 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 power reception efficiency of the first secondary-side resonant coil, a first rated output of a first load, a second power reception efficiency of a second secondary-side resonant coil of another power receiver, and a second rated output of a second load.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: September 24, 2019
    Assignee: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Patent number: 10381859
    Abstract: A wireless power supply system includes: a power transmitter; and power receivers configured to receive power through magnetic field resonance or electric field resonance. The transmitter groups the receivers into first groups based on degrees of coupling between the transmitter and the respective receivers in an initial state. The transmitter calculates, for the respective first groups, charging times required to charge the receivers, and a first total charging time for the first groups. The transmitter sets degrees of coupling greater than or equal to the degrees of coupling in the initial state, and again groups the receivers into second groups based on the set degrees. The transmitter calculates, for the respective second groups, charging times required to charge the receivers and a second total for the second groups, and starts to transmit the power when the second total time is less than or equal to the first total time.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: August 13, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Kiyoto Matsui, Akiyoshi Uchida
  • Patent number: 10305333
    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.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: May 28, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Satoshi Shimokawa, Akiyoshi Uchida
  • Patent number: 10276900
    Abstract: A rechargeable battery includes: a battery body including a cylindrical outer peripheral side surface; and a power receiving coil wound in at most a single layer around the outer peripheral side surface, and electrically connected to the battery body. The power receiving coil is helically wound around the outer peripheral side surface while forming a space from which the outer peripheral side surface is exposed.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: April 30, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hiroyasu Kawano, Akiyoshi Uchida, Satoshi Shimokawa, Kiyoto Matsui, Kazuyuki Ozaki, Masakazu Taguchi
  • Publication number: 20190103768
    Abstract: A power-transmission system includes a power transmitter; receivers that each receive power by electricity via a space from the power transmitter; a first determiner configured to determine based on power-data concerning rated-power each received from the receivers and the received power whether the receiver excessive in the received power and the receiver insufficient in the received power are present; a second determiner that determines whether the received power of the receiver excessive in the received power is equal to or larger than a predetermined value; and a command generator configured to transmit, to the receiver determined as having the received power equal to or larger than the predetermined value by the second determiner, a command for reducing the received power with the receivers to be equal to or smaller than a predetermined target value.
    Type: Application
    Filed: November 29, 2018
    Publication date: April 4, 2019
    Applicant: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Patent number: 10218226
    Abstract: A power receiver includes a secondary-side resonant coil configured to receive electric power from a primary-side resonant coil; a rectifier circuit; a smoothing circuit; a DC-DC converter connected having first and second output terminals; third and fourth output terminals disposed on an output side of the DC-DC converter and connected to a secondary battery; a sub-secondary battery having fifth and sixth output terminals; a switch configured to switch connection between the first and second output terminals, the third and fourth output terminals, and the fifth and sixth output terminals; and a controller configured, when the secondary-side resonant coil starts to receive the electric power, to control the switch to respectively connect the first and second output terminals and a load or first and second input terminals of the sub-secondary battery and to respectively connect the third and fourth output terminals and the fifth and sixth output terminals.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: February 26, 2019
    Assignee: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Patent number: 10133374
    Abstract: The objective is to provide a cover glass having edge surfaces and a through-hole, formed with high external dimensional precision. The cover glass has a unit substrate comprising glass, and a resinforced portion containing a resin material provided on the edge surfaces of the unit substrate.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: November 20, 2018
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shinichiro Takahashi, Akiyoshi Uchida, Shinichi Sakano, Minoru Nakanishi, Shinsuke Nakazawa, Satoshi Emori
  • Patent number: 10090710
    Abstract: A power receiving apparatus includes a plurality of resonance coils, a power receiving circuit, and a single wire configured to start at a first terminal of the power receiving circuit and to end at a second terminal of the power receiving circuit, the single wire forming one coil or a plurality of coils connected in series, wherein the one coil or the plurality of coils connected in series and the plurality of resonance coils are placed such that the one coil or the plurality of coils connected in series are couplable to the plurality of resonance coils.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: October 2, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Publication number: 20180226842
    Abstract: A power transmitting system includes a power transmitter; and power receivers each of which includes a secondary-side resonant coil; and an adjuster configured to adjust an amount of electric power received by the coil. The power transmitter includes a primary-side resonant coil configured to transmit, to the power receivers, electric power; a determination unit configured to determine, based on electric power data related to a rated electric power and received electric power, whether a power receiver whose received electric power is excessive and a power receiver whose received electric power is insufficient are present; and a command output unit configured, upon determining that the power receiver whose received electric power is excessive and the power receiver whose received electric power is insufficient are present, to transmit, to the power receiver whose received electric power is excessive, a command to the adjuster to decrease the amount of the electric power.
    Type: Application
    Filed: April 4, 2018
    Publication date: August 9, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Akiyoshi UCHIDA, Kazuyuki OZAKI
  • Patent number: 10027175
    Abstract: A wireless power transfer system including a plurality of power supply coils, and wirelessly performing power transfer from the power supply coils to a power receiver, includes an entire controller. The entire controller is configured to control the power transfer performed by wirelessly transmitting and receiving powers of the power supply coils and the power receiver, in accordance with confirming power transfer ranges of the plurality of power supply coils.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: July 17, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Akiyoshi Uchida
  • Publication number: 20180197678
    Abstract: A wireless power transfer system includes a plurality of power sources and at least one power receiver, in which power transfer from the power sources to the power receiver is performed in wireless by using magnetic field resonance or electric field resonance. In the system, one of the plurality of power sources is designated as a master power source and the other one or more power sources are designated as slave power sources. In addition, the master power source controls the plurality of power sources and the at least one power receiver to perform the power transfer. This allows the system to perform the power transfer in an optimum state.
    Type: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Akiyoshi UCHIDA, Kazuyuki OZAKI, Masakazu TAGUCHI, Satoshi SHIMOKAWA, Hiroyasu KAWANO, Kiyoto MATSUI