Patents by Inventor Toshiya Mitomo
Toshiya Mitomo 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).
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Publication number: 20250202287Abstract: According to one embodiment, a power feeding system includes power receiving units, communication units, and a power feeding unit. The power feeding unit is configured to stop feeding power to a first power receiving unit when the receiving level is lower than a first reference value, feed power to a second power receiving unit, stop feeding power to the second power receiving unit, and resume feeding power to the first power receiving unit.Type: ApplicationFiled: August 13, 2024Publication date: June 19, 2025Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Toshiya MITOMO, Kentaro TANIGUCHI
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Patent number: 12272965Abstract: An electronic apparatus, according to one embodiment, that is capable of wireless power transfer to a power receiver that transmits a wireless signal, comprising: N antenna elements; N wireless signal processing circuitries configured to acquire analog signals, based on wireless signals received by the N antenna elements; a first signal processing circuitry configured to acquire a first digital signal, based on a first analog signal that is the analog signal acquired by a first wireless signal processing circuitry; a first selector configured to select one of second analog signals that are the analog signals acquired by (N?1) second wireless signal processing circuitries; a second signal processing circuitry configured to acquire a second digital signal, based on the second analog signal selected by the first selector; and a controller configured to estimate a channel from the power receiver, based on the first digital signal and the second digital signal.Type: GrantFiled: March 6, 2023Date of Patent: April 8, 2025Assignee: Kabushiki Kaisha ToshibaInventor: Toshiya Mitomo
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Publication number: 20250015836Abstract: According to one embodiment, a power supply device includes a receiving unit and a power transmitting unit. The receiving unit receives, from a control device, a first control signal including first information that designates a first power receiving device of a plurality of power receiving devices. The power transmitting unit transmits a wireless power transmission signal for power supply to the first power receiving device, based on the first information. The first control signal is a signal which causes the first power receiving device to perform a specific operation.Type: ApplicationFiled: February 28, 2024Publication date: January 9, 2025Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Toshiya MITOMO
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Patent number: 12191678Abstract: A power supply system includes a first power supply apparatus configured to perform power transmission by an electromagnetic wave having a first frequency band, and a second power supply apparatus configured to perform power transmission by an electromagnetic wave having a second frequency band. The first power supply apparatus and the second power supply apparatus are provided so as to be 2H×{tan(?)} or greater distant from each other, when each of the first power supply apparatus and the second power supply apparatus is provided in height H from a floor surface, where H is a positive number, and when a direction of a maximum value ±3 dB is in a range from ?? to +? in a case where a perpendicular downward direction from each position is a standard.Type: GrantFiled: June 27, 2023Date of Patent: January 7, 2025Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Taniguchi, Toshiya Mitomo
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Publication number: 20240429750Abstract: According to one embodiment, a wireless power reception device, includes: a power receiver circuit configured to receive RF power by separating the RF power into first RF power derived from a first linear polarization component and second RF power derived from a second linear polarization component; a first converter circuit configured to convert the first RF power into first DC power; a second converter circuit configured to convert the second RF power into second DC power; a combiner circuit configured to combine the first DC power and the second DC power in parallel, and output the combined DC power as third DC power; and a voltage fixer circuit configured to fix an output voltage of the combiner to a predetermined value, wherein the first converter and the second converter operate to maximize power conversion efficiencies of the first converter and the second converter, respectively.Type: ApplicationFiled: March 15, 2024Publication date: December 26, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kazuki ARAI, Toshiya MITOMO
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Publication number: 20240333037Abstract: According to one embodiment, a power reception device, includes: a power receiver circuit configured to receive a wireless signal including at least one of a wireless power supply signal or a wireless communication signal; and a processing circuit configured to determine whether the wireless signal includes the wireless power supply signal or not from a feature value of the wireless signal.Type: ApplicationFiled: March 6, 2024Publication date: October 3, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomoko ADACHI, Toshiya MITOMO
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Patent number: 12088116Abstract: A wireless power transmission device that transmits wireless power by a radio wave to a plurality of power receivers, has a power transmission condition calculator that calculates power transmission conditions including power transmission periods of two or more of a plurality of different power transmission patterns based on receiving power information and required electric energy information from the plurality of power receivers, and power transmission circuitry that transmits a radio wave while switching between the two or more power transmission patterns under the calculated power transmission conditions.Type: GrantFiled: February 1, 2021Date of Patent: September 10, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Murata, Kohei Onizuka, Toshiya Mitomo
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Publication number: 20240039343Abstract: According to one embodiment, an electronic apparatus capable of transferring power wirelessly to a power receiver apparatus, apparatus includes: a signal generation circuitry configured to generate a first signal 5 for wireless power transfer; an antenna configured to radiate an electromagnetic wave on a basis of the first signal; an actuator capable of mechanically changing an orientation of the antenna; and a controlling circuitry configured to control a transmission power of the first signal according to the orientation of the antenna.Type: ApplicationFiled: March 10, 2023Publication date: February 1, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Toshiya MITOMO
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Publication number: 20230412005Abstract: An electronic apparatus, according to one embodiment, that is capable of wireless power transfer to a power receiver that transmits a wireless signal, comprising: N antenna elements; N wireless signal processing circuitries configured to acquire analog signals, based on wireless signals received by the N antenna elements; a first signal processing circuitry configured to acquire a first digital signal, based on a first analog signal that is the analog signal acquired by a first wireless signal processing circuitry; a first selector configured to select one of second analog signals that are the analog signals acquired by (N?1) second wireless signal processing circuitries; a second signal processing circuitry configured to acquire a second digital signal, based on the second analog signal selected by the first selector; and a controller configured to estimate a channel from the power receiver, based on the first digital signal and the second digital signal.Type: ApplicationFiled: March 6, 2023Publication date: December 21, 2023Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Toshiya MITOMO
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Patent number: 11804875Abstract: A wireless power-transmission apparatus includes at least one antenna element disposed at a specific position in a three-dimensional space having a predetermined shape and size, to transmit a power transmission beam, an acquirer to acquire an inclination angle of the antenna element to a plane direction of a reference plane and a height of the antenna element to the reference plane, and a controller to control at least one of antenna power and a power transmission direction of the power transmission beam so that interference power of the power transmission beam toward an outside of the three-dimensional space becomes equal to or smaller than a predetermined allowable value when the antenna element is disposed at the acquired inclination angle and height.Type: GrantFiled: June 3, 2022Date of Patent: October 31, 2023Assignee: Kabushiki Kaisha ToshibaInventors: Kentaro Murata, Kohei Onizuka, Toshiya Mitomo
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Publication number: 20230344277Abstract: A power supply system includes a first power supply apparatus configured to perform power transmission by an electromagnetic wave having a first frequency band, and a second power supply apparatus configured to perform power transmission by an electromagnetic wave having a second frequency band. The first power supply apparatus and the second power supply apparatus are provided so as to be 2H×{tan(?)} or greater distant from each other, when each of the first power supply apparatus and the second power supply apparatus is provided in height H from a floor surface, where H is a positive number, and when a direction of a maximum value ±3 dB is in a range from ?? to +? in a case where a perpendicular downward direction from each position is a standard.Type: ApplicationFiled: June 27, 2023Publication date: October 26, 2023Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro TANIGUCHI, Toshiya MITOMO
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Patent number: 11728685Abstract: A power supply system includes a first power supply apparatus configured to perform power transmission by an electromagnetic wave having a first frequency band, and a second power supply apparatus configured to perform power transmission by an electromagnetic wave having a second frequency band. The first power supply apparatus and the second power supply apparatus are provided so as to be 2H×{tan(?)} or greater distant from each other, when each of the first power supply apparatus and the second power supply apparatus is provided in height H from a floor surface, where H is a positive number, and when a direction of a maximum value ±3 dB is in a range from ?? to +? in a case where a perpendicular downward direction from each position is a standard.Type: GrantFiled: January 31, 2022Date of Patent: August 15, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Taniguchi, Toshiya Mitomo
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Publication number: 20220302764Abstract: A wireless power-transmission apparatus includes at least one antenna element disposed at a specific position in a three-dimensional space having a predetermined shape and size, to transmit a power transmission beam, an acquirer to acquire an inclination angle of the antenna element to a plane direction of a reference plane and a height of the antenna element to the reference plane, and a controller to control at least one of antenna power and a power transmission direction of the power transmission beam so that interference power of the power transmission beam toward an outside of the three-dimensional space becomes equal to or smaller than a predetermined allowable value when the antenna element is disposed at the acquired inclination angle and height.Type: ApplicationFiled: June 3, 2022Publication date: September 22, 2022Applicant: Kabushiki Kaisha ToshibaInventors: Kentaro MURATA, Kohei ONIZUKA, Toshiya MITOMO
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Patent number: 11444489Abstract: According to one embodiment, an wireless power transmission apparatus includes a plurality of antennas, a power transmission circuit, a measuring circuit and a control circuit. The power transmission circuit is configured to transmit a beam of a first wireless signal from the plurality of antennas. The measuring circuit is configured to receive a second wireless signal with the plurality of antennas. The control circuit is configured to: detect an object in a direction of the beam based on the second wireless signal received at a plurality of timings; and change a shape of the beam by controlling at least either an amplitude or a phase of the first wireless signal provided to each antenna of the plurality of antennas.Type: GrantFiled: September 6, 2019Date of Patent: September 13, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Toshiya Mitomo, Kentaro Taniguchi
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Patent number: 11374435Abstract: A wireless power-transmission apparatus includes at least one antenna element disposed at a specific position in a three-dimensional space having a predetermined shape and size, to transmit a power transmission beam, an acquirer to acquire an inclination angle of the antenna element to a plane direction of a reference plane and a height of the antenna element to the reference plane, and a controller to control at least one of antenna power and a power transmission direction of the power transmission beam so that interference power of the power transmission beam toward an outside of the three-dimensional space becomes equal to or smaller than a predetermined allowable value when the antenna element is disposed at the acquired inclination angle and height.Type: GrantFiled: March 7, 2019Date of Patent: June 28, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Murata, Kohei Onizuka, Toshiya Mitomo
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Publication number: 20220158494Abstract: A power supply system includes a first power supply apparatus configured to perform power transmission by an electromagnetic wave having a first frequency band, and a second power supply apparatus configured to perform power transmission by an electromagnetic wave having a second frequency band. The first power supply apparatus and the second power supply apparatus are provided so as to be 2H×{tan(?)} or greater distant from each other, when each of the first power supply apparatus and the second power supply apparatus is provided in height H from a floor surface, where H is a positive number, and when a direction of a maximum value ±3 dB is in a range from ?? to +? in a case where a perpendicular downward direction from each position is a standard.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro TANIGUCHI, Toshiya MITOMO
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Patent number: 11283305Abstract: According to one embodiment, an electronic apparatus includes a control circuitry and a transmitter. The control circuitry is configured to select a first frequency band based on channel information on at least one communication channel included in a communication frequency band of a wireless communication standard. The transmitter transmits power via an electromagnetic wave in the first frequency band.Type: GrantFiled: March 8, 2019Date of Patent: March 22, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tomoko Adachi, Toshiya Mitomo
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Patent number: 11277032Abstract: According to one embodiment, an electronic apparatus includes power transmission circuitry, and detection circuitry. The power transmission circuitry transmits power by an electromagnetic wave with a first frequency band. The detection circuitry receives a reception signal and performs carrier sense with a second frequency band different from the first frequency band. The detection circuitry includes interference avoidance circuitry that eliminates a signal having a third frequency band which is a part of the second frequency band from the reception signal.Type: GrantFiled: September 9, 2020Date of Patent: March 15, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Taniguchi, Toshiya Mitomo
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Publication number: 20210296935Abstract: According to one embodiment, an electronic apparatus includes power transmission circuitry, and detection circuitry. The power transmission circuitry transmits power by an electromagnetic wave with a first frequency band. The detection circuitry receives a reception signal and performs carrier sense with a second frequency band different from the first frequency band. The detection circuitry includes interference avoidance circuitry that eliminates a signal having a third frequency band which is a part of the second frequency band from the reception signal.Type: ApplicationFiled: September 9, 2020Publication date: September 23, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro TANIGUCHI, Toshiya MITOMO
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Publication number: 20210159735Abstract: A wireless power transmission device that transmits wireless power by a radio wave to a plurality of power receivers, has a power transmission condition calculator that calculates power transmission conditions including power transmission periods of two or more of a plurality of different power transmission patterns based on receiving power information and required electric energy information from the plurality of power receivers, and power transmission circuitry that transmits a radio wave while switching between the two or more power transmission patterns under the calculated power transmission conditions.Type: ApplicationFiled: February 1, 2021Publication date: May 27, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro MURATA, Kohei ONIZUKA, Toshiya MITOMO