Patents by Inventor Kentaro Murata
Kentaro Murata 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: 20240118406Abstract: A sensor includes a complex-transfer-function calculator that calculates a complex transfer function from received signals, a reflection-coefficient calculator that calculates a reflection coefficient using a complex transfer function when an object to be detected is arranged at one of L positions and an ideal complex transfer function which is a theoretical value for the position at which the object to be detected is arranged, various normalizers that calculate a normalized reflection coefficient by normalizing the reflection coefficient, a reflection-coefficient interpolator that calculates an interpolated reflection coefficient by interpolation calculation of the reflection coefficient using the normalized reflection coefficient for each coordinates used in position estimation of the object to be detected, and a position estimator that corrects the position estimation, using a steering vector and the interpolated reflection coefficient that are determined based on the position of each of the transmitting aType: ApplicationFiled: December 14, 2021Publication date: April 11, 2024Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takeshi NAKAYAMA, Shoichi IIZUKA, Naoki HONMA, Tomonori ITO, Teppei HAYASHI, Nobuyuki SHIRAKI, Kentaro MURATA
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Publication number: 20240118407Abstract: A sensor receives M reception signals including reflection signals reflected by a living body; extracts a living-body component transfer function matrix from first complex transfer functions and second complex transfer functions, the first complex transfer functions being obtained by recording an M×N complex transfer function matrix including complex transfer functions in time series, from M reception signals, the complex transfer functions each indicating characteristics of propagation between a corresponding one of transmission antenna elements and a corresponding one of reception antenna elements, the second complex transfer functions being obtained by estimating and recording M×N complex transfer functions in a second period, and outputting a position at which a spectrum function indicating a likelihood that a living body is present indicates a local maximum value, using a correlation matrix based on the living-body component complex transfer function matrix and a steering vector corresponding to each ofType: ApplicationFiled: December 22, 2021Publication date: April 11, 2024Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shoichi IIZUKA, Takeshi NAKAYAMA, Naoki HONMA, Nobuyuki SHIRAKI, Kentaro MURATA
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Patent number: 11912052Abstract: Provided is a thermosensitive recording medium having excellent oil resistance among various performances required for the thermosensitive recording medium. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains N-[2-(3-phenylureido)phenyl] benzenesulfonamide and an urea-based compound represented by the general formula 1 as the electron accepting color developing agents, wherein R1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R2 represents a hydrogen atom or an alkyl group.Type: GrantFiled: November 11, 2020Date of Patent: February 27, 2024Inventors: Kentaro Kawasaki, Yuka Murata, Kenji Hirai, Yoshimi Midorikawa
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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: 20220350014Abstract: A sensor includes: a complex transfer function calculator calculating complex transfer functions; a living body component extractor extracting living body information; a correlation matrix calculator calculating a target correlation matrix from the living body information; a noise information storage recording a noise correlation matrix; a first headcount information calculator calculating first headcount information that is a tentative number of persons present in the predetermined space, based on the target correlation matrix and a threshold calculated from the noise correlation matrix; a MUSIC spectrum calculator estimating position candidates for the living bodies, using the target correlation matrix, and outputting likelihood spectra indicating likelihoods of the respective living bodies being present in corresponding positions; and a second headcount information calculator estimating second headcount information that is a more accurate number of living bodies or positions from position information thatType: ApplicationFiled: May 31, 2021Publication date: November 3, 2022Inventors: Shoichi IIZUKA, Takeshi NAKAYAMA, Naoki HONMA, Kentaro MURATA, Kazuki NUMAZAKI, Nobuyuki SHIRAKI
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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: 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: 20220135384Abstract: A mover control method includes decision processing and control processing. The decision processing is the processing of determining whether or not a mover that is carrying an object thereon is going to deviate from a traveling route, through which the mover, as well as the object, is allowed to pass. The control processing (first control processing) is the processing of controlling the mover based on a result of the decision processing.Type: ApplicationFiled: February 12, 2020Publication date: May 5, 2022Inventors: Seigo TAKAYAMA, Takaaki IMANAKA, Kentaro MURATA
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Patent number: 11159060Abstract: A wireless power-supply control apparatus to perform control on transmission of power from at least one power transmitter comprising a plurality of first antennas to a plurality of power receivers, has a first communicator and a controller. The first communicator to receive propagation path information between the power transmitter and the plurality of power receivers and requested-power information on requested power of the plurality of power receivers, from the power transmitter or the plurality of power receivers. The controller to control power to be transmitted from the power transmitter to a predetermined value and control at least either one of a phase or an amplitude of power to be supplied to the plurality of first antennas, based on the propagation path information and the requested-power information, so that a specific number of power receivers receiving power larger than the requested power is equal to or larger than a predetermined number.Type: GrantFiled: September 11, 2017Date of Patent: October 26, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Murata, Kohei Onizuka
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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
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Publication number: 20200373661Abstract: A wireless power transmission device includes a power transmitter to transmit a wireless power signal through a plurality of first antennas, a propagation path estimation unit to estimate first propagation path information characterizing a propagation path between the plurality of first antennas and a predetermined antenna, a propagation path extraction unit to extract second propagation path information characterizing a propagation path passing through a moving body, based on at least one of a difference on a time axis of a plurality of pieces of the first propagation path information each acquired at different times, and filtering on a frequency axis, a weight calculator to calculate a weight vector that determines a directivity of a combined power transmission beam formed by the plurality of first antennas, and a controller to control an amplitude and a phase of the wireless power signal inputted to each of the plurality of first antennas.Type: ApplicationFiled: August 14, 2020Publication date: November 26, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro MURATA, Kohei ONIZUKA, Toshiya MITOMO
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Patent number: 10777886Abstract: A wireless power transmission device includes a power transmitter to transmit a wireless power signal through a plurality of first antennas, a propagation path estimation unit to estimate first propagation path information characterizing a propagation path between the plurality of first antennas and a predetermined antenna, a propagation path extraction unit to extract second propagation path information characterizing a propagation path passing through a moving body, based on at least one of a difference on a time axis of a plurality of pieces of the first propagation path information each acquired at different times, and filtering on a frequency axis, a weight calculator to calculate a weight vector that determines a directivity of a combined power transmission beam formed by the plurality of first antennas, and a controller to control an amplitude and a phase of the wireless power signal inputted to each of the plurality of first antennas.Type: GrantFiled: March 1, 2019Date of Patent: September 15, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Murata, Kohei Onizuka, Toshiya Mitomo
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Publication number: 20200091602Abstract: A wireless power transmission device includes a power transmitter to transmit a wireless power signal through a plurality of first antennas, a propagation path estimation unit to estimate first propagation path information characterizing a propagation path between the plurality of first antennas and a predetermined antenna, a propagation path extraction unit to extract second propagation path information characterizing a propagation path passing through a moving body, based on at least one of a difference on a time axis of a plurality of pieces of the first propagation path information each acquired at different times, and filtering on a frequency axis, a weight calculator to calculate a weight vector that determines a directivity of a combined power transmission beam formed by the plurality of first antennas, and a controller to control an amplitude and a phase of the wireless power signal inputted to each of the plurality of first antennas.Type: ApplicationFiled: March 1, 2019Publication date: March 19, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro MURATA, Kohei Onizuka, Toshiya Mitomo
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Publication number: 20200028384Abstract: 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: March 7, 2019Publication date: January 23, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro MURATA, Kohei ONIZUKA, Toshiya MITOMO
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Publication number: 20190245388Abstract: 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 5, 2019Publication date: August 8, 2019Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro MURATA, Kohei ONIZUKA, Toshiya MITOMO
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Publication number: 20180254671Abstract: A wireless power-supply control apparatus to perform control on transmission of power from at least one power transmitter comprising a plurality of first antennas to a plurality of power receivers, has a first communicator and a controller. The first communicator to receive propagation path information between the power transmitter and the plurality of power receivers and requested-power information on requested power of the plurality of power receivers, from the power transmitter or the plurality of power receivers. The controller to control power to be transmitted from the power transmitter to a predetermined value and control at least either one of a phase or an amplitude of power to be supplied to the plurality of first antennas, based on the propagation path information and the requested-power information, so that a specific number of power receivers receiving power larger than the requested power is equal to or larger than a predetermined number.Type: ApplicationFiled: September 11, 2017Publication date: September 6, 2018Inventors: Kentaro MURATA, Kohei ONIZUKA
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Publication number: 20180226839Abstract: A wireless power transmission device according to one aspect of the present invention transmits electric power to a plurality of wireless power reception devices by using radio waves and includes: a plurality of antennas; a calculator configured to calculate an amplitude and a phase at a time of transmission of a power transmission signal corresponding to each of the plurality of antennas; and a signal circuit configured to transmit the power transmission signals via the plurality of antennas, based on the amplitudes and the phases calculated by the calculator. The calculator calculates the amplitude and the phase at the time of the transmission of the power transmission signal, based on an amplitude and a phase at a time of reception by the wireless power reception devices of the power transmission signal and a power distribution ratio corresponding to the wireless power reception device.Type: ApplicationFiled: August 30, 2017Publication date: August 9, 2018Inventors: Makoto HIGAKI, Kentaro MURATA
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Patent number: 5772038Abstract: A parts transporting tray (1) has a rectangular body, a plurality of parts receiving pits (6) formed in the upper face of the body, rows of detention means (2) each formed along one of perimeters of the body such that the adjacent trays can engage one with another, and a locking means (5) for keeping engaged the detention means of the adjacent trays. Each row consists of an upper and lower series of recesses (3) and protrusions (4) alternating one another at a constant pitch and being of a half thickness of the body. The protrusions on one perimeter are staggered with respect to those on the other perimeter, and each protrusion having a hooking portion (4a) facing transverse sides of the tray's body. The protrusions on one tray can loosely fit in the recesses on the other tray, and the trays are caused to slide relatively so that the protrusions on the neighboring trays engage with the recesses when a desired number of the trays are disintegratively connected one to another.Type: GrantFiled: June 10, 1997Date of Patent: June 30, 1998Assignees: Gold Industries Co., Ltd., Kabushiki Kaisha ToshibaInventors: Kentaro Murata, Noriho Matsuzoe, Takao Emoto, Hisayoshi Kunii
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Patent number: 5333733Abstract: A linked flexible band-like container for transporting precision devices has a series of recesses for receiving the devices, and a row of small portions at regular intervals along its lateral side(s) and engageable with driving lugs of a stepping driver. The container is composed of a row of repeating plastics units of the same dimension in the longitudinal direction, each unit defines at least one recess and has transverse sides "A" and "B". Each of junctions between these sides is a hinge which allows the adjacent sides to rotate relative to and in parallel with each other, due to a distance from the junction to the closest aperture on one unit is the same as that to the closest aperture on the next unit. The container having the rigid units can be bent without causing any curvature to remain after it is stretched.Type: GrantFiled: May 7, 1993Date of Patent: August 2, 1994Assignee: Gold Industries Co., Ltd.Inventor: Kentaro Murata
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Patent number: RE49929Abstract: A first embodiment of a substrate for a high-frequency printed wiring board according to the present disclosure is directed to a substrate for a high-frequency printed wiring board, the substrate including: a dielectric layer including a fluororesin and an inorganic filler; and a copper foil layered on at least one surface of the dielectric layer, wherein a surface of the copper foil at the dielectric layer side has a maximum height roughness (Rz) of less than or equal to 2 ?m, and a ratio of the number of inorganic atoms of the inorganic filler to the number of fluorine atoms of the fluororesin in a superficial region of the dielectric layer at the copper foil side is less than or equal to 0.08.Type: GrantFiled: November 17, 2021Date of Patent: April 16, 2024Assignees: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Shingo Kaimori, Masaaki Yamauchi, Kentaro Okamoto, Satoshi Kiya, Kazuo Murata