Patents by Inventor Takuya Sugimoto
Takuya Sugimoto 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: 20240158672Abstract: A reinforcement material includes a resin layer and a restraining layer. The resin layer contains a resin component and a foaming agent, and serves as a reinforcement layer for reinforcing an object. The restraining layer is disposed on the resin layer. The reinforcement layer contains a matrix resin obtained by curing the resin component and a plurality of cells generated by foaming the foaming agent. A ratio of the total area of the plurality of cells in a cross section of the reinforcement layer is 83% or more, and an elastic modulus of the matrix resin of the reinforcement layer is 1.4 GPa or more.Type: ApplicationFiled: January 27, 2022Publication date: May 16, 2024Applicant: NITTO DENKO CORPORATIONInventors: Takahiro FUJII, Masahaya SUGIMOTO, Takuya MASE
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Patent number: 11909341Abstract: An object of the present invention is to provide a power conversion device capable of suppressing an increase in a current flowing through a motor even if a voltage command exceeds the amplitude of a carrier wave. In order to achieve the above object, the power conversion device controls the driving of a motor by converting a DC voltage into a voltage based on a voltage command by an operation of a switching circuit and includes: a modulated wave generator that generates a first modulated wave from the voltage command; and a control signal generator that generates a control signal for controlling the operation of the switching circuit from the first modulated wave and a carrier wave. The modulated wave generator generates a square wave based on a voltage command norm as the first modulated wave.Type: GrantFiled: April 12, 2019Date of Patent: February 20, 2024Assignee: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.Inventors: Yusaku Onuma, Takuya Sugimoto
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Publication number: 20230299700Abstract: The present invention achieves highly accurate control characteristics by estimating an induced voltage coefficient of a magnet motor without rotary auto-tuning. A first power Pc is calculated on the basis of the output voltage and output current of the magnet motor, and a second power Pc{circumflex over (?)} is calculated on the basis of the electric circuit constant, current command, output frequency, and induced voltage coefficient of the magnet motor. The induced voltage coefficient is estimated so that the calculated first power follows the second power, and the driving of the magnet motor is controlled in accordance with the induced voltage coefficient.Type: ApplicationFiled: June 14, 2021Publication date: September 21, 2023Inventors: Kazuaki TOBARI, Yusaku ONUMA, Takuya SUGIMOTO, Hiroshi WATANABE, Mutsuo TOKASHIKI
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Publication number: 20230120796Abstract: A magnetic sensor is able to detect a magnetic field applied from a position detecting magnet that makes relative movement as an optical reflector is rotated. Rotation of the optical reflector enables the position detecting magnet to pass through a reference position where a rotation axis, a center or approximate center of the magnetic sensor, and a center or approximate center of the position detecting magnet are located in order on a straight line, as seen in the axial direction of the rotation axis. The magnetic sensor is disposed in an XZ plane that includes a magnetization direction passing through the center or approximate center of the position detecting magnet located at the reference position, and the axial direction of the rotation axis.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Inventors: Takuya SUGIMOTO, Daisuke NAKAMURA, Yoshihiro ITO
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Publication number: 20230118423Abstract: A magnetic sensor is able to detect a magnetic field applied from a position detecting magnet that makes relative movement as an optical reflector is rotated. Rotation of the optical reflector enables the position detecting magnet to pass through a reference position where a rotation axis, a center or approximate center of the magnetic sensor, and a center or approximate center of the position detecting magnet are located in order on a straight line, as seen in the axial direction of the rotation axis. The magnetic sensor is in an XZ plane that includes a magnetization direction passing through the center or approximate center of the position detecting magnet located at the reference position, and the axial direction of the rotation axis.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Inventors: Daisuke NAKAMURA, Takuya SUGIMOTO, Yoshihiro ITO
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Publication number: 20230104331Abstract: The purpose of the present invention is to provide a power conversion device capable of suppressing an increase in current flowing through a motor even if a voltage command exceeds the amplitude of a carrier wave.Type: ApplicationFiled: May 8, 2020Publication date: April 6, 2023Inventors: Yusaku ONUMA, Takuya SUGIMOTO
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Patent number: 11575338Abstract: This power conversion device comprises: a power converter including a switching element; and a control unit which controls the power converter. The control unit calculates a torque electric current detection value and an excitation electric current detection value from an electric current flowing to an external device, and when an absolute value of the torque electric current detection value is greater than or equal to the excitation electric current detection value, performs control such that the excitation electric current detection value follows the torque electric current detection value.Type: GrantFiled: April 28, 2020Date of Patent: February 7, 2023Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Kazuaki Tobari, Agnes Hadinata, Atsuhiko Nakamura, Hiroshi Watanabe, Yusaku Onuma, Takuya Sugimoto, Yoshiyuki Taguchi
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Patent number: 11555835Abstract: A current sensor includes a conductor, and first and second magnetic sensing elements. The first magnetic sensing element is positioned such that the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the first conductor portion is opposite in polarity to the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the third conductor portion. The second magnetic sensing element is positioned such that the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the second conductor portion is opposite in polarity to the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the third conductor portion.Type: GrantFiled: April 16, 2021Date of Patent: January 17, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Takuya Sugimoto
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Patent number: 11437944Abstract: A power conversion device includes a harmonic voltage generation unit that superimposes dc-axis and qc-axis harmonic voltages on dc-axis and qc-axis voltage commands in accordance with a switching signal; and an inductance estimation unit that estimates dc-axis inductance and qc-axis inductance on a basis of dc-axis and qc-axis harmonic currents, amplitude values of the harmonic voltages, and the switching signal.Type: GrantFiled: May 29, 2019Date of Patent: September 6, 2022Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Kazuaki Tobari, Yoshitaka Iwaji, Agnes Hadinata, Yusaku Onuma, Takuya Sugimoto, Atsuhiko Nakamura, Hiroshi Watanabe, Yoshiyuki Taguchi
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Publication number: 20220278332Abstract: Provided is an all-solid-state lithium battery capable of suppressing short-circuiting caused by metallic Li creeping up on peripheral end faces. In the all-solid-state lithium battery, an anode mixture layer, a solid electrolyte layer, and a cathode mixture layer are layered in this order, a Li-occluding solid is disposed on at least part of peripheral end faces on the solid electrolyte layer, and the Li-occluding solid is responsive to Li.Type: ApplicationFiled: February 23, 2022Publication date: September 1, 2022Inventor: Takuya Sugimoto
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Patent number: 11424707Abstract: A power conversion apparatus controls a load apparatus by position sensorless vector control. The power conversion apparatus includes: a current detection unit configured to detect a current passing through the load apparatus; a current detection arithmetic unit configured to calculate a harmonic current component on a dc-axis as a control axis and a harmonic current component on a qc-axis, based on the detected current; a saliency ratio estimation unit configured to output a saliency ratio estimated value based on the harmonic current component on the dc-axis and the harmonic current component on the qc-axis; and a saliency ratio control unit configured to output a current component that increases or decreases a current command value on a d-axis of a rotor coordinate system, based on a deviation between the saliency ratio estimated value and a predetermined saliency ratio.Type: GrantFiled: December 26, 2018Date of Patent: August 23, 2022Assignee: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.Inventors: Kazuaki Tobari, Yoshitaka Iwaji, Agnes Hadinata, Yusaku Onuma, Atsuhiko Nakamura, Takuya Sugimoto
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Publication number: 20220200505Abstract: An object of the present invention is to provide a power conversion device capable of suppressing an increase in a current flowing through a motor even if a voltage command exceeds the amplitude of a carrier wave. In order to achieve the above object, the power conversion device controls the driving of a motor by converting a DC voltage into a voltage based on a voltage command by an operation of a switching circuit and includes: a modulated wave generator that generates a first modulated wave from the voltage command; and a control signal generator that generates a control signal for controlling the operation of the switching circuit from the first modulated wave and a carrier wave. The modulated wave generator generates a square wave based on a voltage command norm as the first modulated wave.Type: ApplicationFiled: April 12, 2019Publication date: June 23, 2022Inventors: Yusaku ONUMA, Takuya SUGIMOTO
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Publication number: 20220169640Abstract: Provided is a method for industrially advantageously synthesizing a production intermediate of a quinolinecarboxamide derivative or a salt thereof. The present invention provides a method for producing a quinolinecarboxylic acid derivative of formula (4) or a salt thereof, including reacting an aniline of the following formula (1), in the presence of boron trifluoride-tetrahydrofuran complex or boron trifluoride-diethyl ether complex, with an aldehyde of formula (2) and subsequently reacting the resulting compound with an ?-keto acid of formula (3), wherein R1, R2, R3 and R4 are the same or different and each represent a hydrogen atom, a halogen atom, a lower alkyl group, or the like, R5 represents a hydrogen atom, a lower alkyl group, or the like, and R6 represents a hydrogen atom, a lower alkyl group, or the like.Type: ApplicationFiled: March 19, 2020Publication date: June 2, 2022Applicant: KABUSHIKI KAISHA YAKULT HONSHAInventors: Takahide SHIGEYAMA, Takuya SUGIMOTO, Hideyuki KOMATSU, Hiroyuki NISHIYAMA
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Publication number: 20220163753Abstract: A lens driving device includes a first magnetic sensor to detect a magnetic field applied from a first position detecting magnet that moves relatively when a lens holder moves in an optical axis direction. When viewed from the optical axis direction, a center of the first magnetic sensor and a center of the first position detecting magnet are displaced from each other in a circumferential direction of an optical axis.Type: ApplicationFiled: February 14, 2022Publication date: May 26, 2022Inventor: Takuya SUGIMOTO
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Publication number: 20220094291Abstract: This power conversion device comprises: a power converter including a switching element; and a control unit which controls the power converter. The control unit calculates a torque electric current detection value and an excitation electric current detection value from an electric current flowing to an external device, and when an absolute value of the torque electric current detection value is greater than or equal to the excitation electric current detection value, performs control such that the excitation electric current detection value follows the torque electric current detection value.Type: ApplicationFiled: April 28, 2020Publication date: March 24, 2022Inventors: Kazuaki TOBARI, Agnes HADINATA, Atsuhiko NAKAMURA, Hiroshi WATANABE, Yusaku ONUMA, Takuya SUGIMOTO, Yoshiyuki TAGUCHI
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Publication number: 20210273591Abstract: A power conversion device includes a harmonic voltage generation unit that superimposes dc-axis and qc-axis harmonic voltages on dc-axis and qc-axis voltage commands in accordance with a switching signal; and an inductance estimation unit that estimates dc-axis inductance and qc-axis inductance on a basis of dc-axis and qc-axis harmonic currents, amplitude values of the harmonic voltages, and the switching signal.Type: ApplicationFiled: May 29, 2019Publication date: September 2, 2021Inventors: Kazuaki TOBARI, Yoshitaka IWAJI, Agnes HADINATA, Yusaku ONUMA, Takuya SUGIMOTO, Atsuhiko NAKAMURA, Hiroshi WATANABE, Yoshiyuki TAGUCHI
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Publication number: 20210231711Abstract: A current sensor includes a conductor, and first and second magnetic sensing elements. The first magnetic sensing element is positioned such that the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the first conductor portion is opposite in polarity to the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the third conductor portion. The second magnetic sensing element is positioned such that the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the second conductor portion is opposite in polarity to the magnetic field component in the second direction of the magnetic field generated by the measurement target current flowing through the third conductor portion.Type: ApplicationFiled: April 16, 2021Publication date: July 29, 2021Inventor: Takuya SUGIMOTO
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Publication number: 20210152113Abstract: A power conversion apparatus controls a load apparatus by position sensorless vector control. The power conversion apparatus includes: a current detection unit configured to detect a current passing through the load apparatus; a current detection arithmetic unit configured to calculate a harmonic current component on a dc-axis as a control axis and a harmonic current component on a qc-axis, based on the detected current; a saliency ratio estimation unit configured to output a saliency ratio estimated value based on the harmonic current component on the dc-axis and the harmonic current component on the qc-axis; and a saliency ratio control unit configured to output a current component that increases or decreases a current command value on a d-axis of a rotor coordinate system, based on a deviation between the saliency ratio estimated value and a predetermined saliency ratio.Type: ApplicationFiled: December 26, 2018Publication date: May 20, 2021Inventors: Kazuaki TOBARI, Yoshitaka IWAJI, Agnes HADINATA, Yusaku ONUMA, Atsuhiko NAKAMURA, Takuya SUGIMOTO
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Patent number: 10903767Abstract: According to the present invention, in position sensorless control for switching between a 120-degree energization scheme for a low-speed region and a 180-degree energization scheme for a mid-to-high-speed region, stable and highly accurate speed control characteristics are provided by suppressing speed deviation ??r in the low-speed region, and by preventing current jump-up caused by a discontinuous rotational speed occurring during switching to the mid-to-high-speed region. In the case of driving in the 120-degree energization scheme, a voltage command value is corrected such that an estimated speed value or a detected speed value follows a speed command.Type: GrantFiled: March 2, 2018Date of Patent: January 26, 2021Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Agnes Hadinata, Yoshitaka Iwaji, Kazuaki Tobari, Yusaku Onuma, Takuya Sugimoto, Masato Ohya
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Patent number: 10646402Abstract: A syringe device includes an administration holder, and a cylinder portion which allows insertion of the administration holder. The cylinder portion includes a coupling holder, a slit holder coupled to the coupling holder, and a double-ended needle assembly disposed slidably in an interior of the coupling holder. A cartridge for a freeze-dry product is mounted, in the administration holder, and a cartridge for solvent is mounted in the coupling holder. When the administration holder is pushed, the double-ended needle assembly slides. When one of the needle points pricks the cartridge for freeze-dry product, the other needle point of the double-ended needle assembly pricks the cartridge for the solvent, and then the needle points unseal the cartridges by a further sliding movement of the double-ended needle assembly.Type: GrantFiled: September 30, 2016Date of Patent: May 12, 2020Assignee: KAKEN PHARMACEUTICAL CO., LTD.Inventors: Noboru Momose, Takuya Sugimoto, Norio Watanabe