Patents by Inventor Toshihiro Yamamoto
Toshihiro Yamamoto 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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Patent number: 11936265Abstract: A rotating electrical machine includes an annular coil connection body provided coaxially with a stator. The coil connection body has, in a groove provided on a holder, an overhang portion for restricting an axial-direction movement of a terminal, and a positioning projection for restricting a radial-direction movement of the terminal. The positioning projection positions the terminal such that a part of the terminal overlaps the overhang portion in the axial direction. In this structure, when the terminal moves in a direction from a terminal holding portion toward a groove opening, the terminal comes into contact with a side surface of the overhang portion, whereby lifting and coming-off of the terminal can be prevented.Type: GrantFiled: August 17, 2018Date of Patent: March 19, 2024Assignee: Mitsubishi Electric CorporationInventors: Takashi Yamamoto, Akira Kimishima, Toshihiro Matsunaga, Kengo Fujimoto
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Patent number: 11396205Abstract: A spoke wheel includes a light alloy rim, a hub, and a plurality of wire spokes connecting the rim with the hub. The rim includes mounting flanges provided at asymmetrical positions with respect to a widthwise center of the rim and is connected with the hub by assembling the spokes to the mounting flanges. The spokes are disposed by being offset to the widthwise center of the rim.Type: GrantFiled: August 21, 2019Date of Patent: July 26, 2022Assignee: Daido Kogyo Co., Ltd.Inventor: Toshihiro Yamamoto
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Patent number: 11358476Abstract: A drive device includes a motor, an inverter, an electric power storage device, and an electronic control unit. The electronic control unit is configured to generate a first pulse width modulation (PWM) signal of the switching elements by comparison of a voltage command of each phase according to a torque command of the motor and a carrier wave voltage, as a first PWM control. The electronic control unit is configured to generate a second PWM signal of the switching elements based on a modulation factor and a voltage phase of a voltage according to the torque command and a pulse count per unit cycle of an electric angle of the motor, as a second pulse width modulation control. The electronic control unit is configured to limit execution of the second PWM control when high controllability of the motor is requested rather than when the high controllability is not requested.Type: GrantFiled: October 4, 2017Date of Patent: June 14, 2022Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kiyotaka Matsubara, Kenji Yamada, Toshihiro Yamamoto
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Patent number: 11152884Abstract: An object is to suppress an increase in current variation amount of a power storage device. A control device sets an allowable modulation factor, based on a circuit characteristic of a DC part that is on a power storage device side of an inverter, such that a current variation amount of the power storage device becomes equal to or smaller than an allowable current variation amount, and sets switching pattern commands of a plurality of switching elements, based on a set allowable modulation factor.Type: GrantFiled: March 6, 2020Date of Patent: October 19, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshihiro Yamamoto, Hiroyuki Oyanagi
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Publication number: 20210137148Abstract: There is provided a fat-processed starch which has excellent dispersibility in food raw materials such as batter and excellent adhesion to ingredients and the like and provides a good texture. The fat-processed starch of the present invention can be obtained by adding a fat composition having an iodine value of 125 to 170 and containing 35 ppm to 8,000 ppm of a polyphenol to a starch to mix the starch and the fat, and aging the starch mixture. The content of the fat composition preferably ranges from 0.01% to 5%, and the starch is preferably tapioca starch.Type: ApplicationFiled: February 28, 2018Publication date: May 13, 2021Inventors: Kazuki Morimoto, Misa Arimoto, Hitoshi Takaguchi, Toshihiro Yamamoto
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Patent number: 10850636Abstract: An electronic control unit is configured to generate a pulse width modulation signal of a plurality of switching elements based on a modulation factor and a voltage phase of a voltage based on a torque command of a motor and a pulse number per unit cycle of an electric angle of the motor and perform switching of the switching elements. The electronic control unit is configured to generate the pulse width modulation signal of the switching elements such that total loss of the motor and an inverter when a heat conversion request of drive electric power of the motor has been issued becomes greater than the total loss when the heat conversion request has not been issued.Type: GrantFiled: November 17, 2017Date of Patent: December 1, 2020Assignee: DENSO CORPORATIONInventors: Masashi Mizuno, Toshihiro Yamamoto, Kenji Yamada
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Publication number: 20200304054Abstract: An object is to suppress an increase in current variation amount of a power storage device. A control device sets an allowable modulation factor, based on a circuit characteristic of a DC part that is on a power storage device side of an inverter, such that a current variation amount of the power storage device becomes equal to or smaller than an allowable current variation amount, and sets switching pattern commands of a plurality of switching elements, based on a set allowable modulation factor.Type: ApplicationFiled: March 6, 2020Publication date: September 24, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshihiro YAMAMOTO, Hiroyuki OYANAGI
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Publication number: 20200062032Abstract: A spoke wheel includes a light alloy rim, a hub, and a plurality of wire spokes connecting the rim with the hub. The rim includes mounting flanges provided at asymmetrical positions with respect to a widthwise center of the rim and is connected with the hub by assembling the spokes to the mounting flanges. The spokes are disposed by being offset to the widthwise center of the rim.Type: ApplicationFiled: August 21, 2019Publication date: February 27, 2020Inventor: Toshihiro YAMAMOTO
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Patent number: 10529932Abstract: Disclosed are an organic electroluminescent device that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple construction, and a material to be used in the device. The material is a material for an organic electroluminescent device formed of a carborane ring compound having a structure in which two indolocarbazole groups are each bonded to a carborane ring through an aromatic group. In addition, the device is an organic electroluminescent device having organic layers between an anode and a cathode laminated on a substrate, in which at least one layer of the organic layers contains the material for an organic electroluminescent device. When the organic layer is a light-emitting layer, the layer contains a phosphorescent light-emitting dopant and contains the material for an organic electroluminescent device as a host material.Type: GrantFiled: February 26, 2015Date of Patent: January 7, 2020Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.Inventors: Junya Ogawa, Takahiro Kai, Tokiko Ueda, Masashi Tada, Masaki Komori, Toshihiro Yamamoto
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Patent number: 10509041Abstract: Provided is a glucose derivative, which is taken into cells via a membrane sugar transport system and is represented by formula (1). Also provided are an imaging agent and an imaging method for a cell or intracellular molecule using said glucose derivative. Further provided is a method for detecting cancer cells with good accuracy using said glucose derivative and an imaging agent to be used in said method. More specifically provided are D-glucose derivatives and L-glucose derivatives in which glucose is bound to the 7-position of a fluorescent molecular group with a coumarin backbone or a quinolone backbone. Also provided are a cell imaging agent and imaging method using the derivative. A cancer cell imaging agent and imaging method using the L-glucose derivative is also provided. G is a group selected from formulas (G1)-(G4) below.Type: GrantFiled: April 19, 2018Date of Patent: December 17, 2019Assignee: HIROSAKI UNIVERSITYInventors: Katsuya Yamada, Ayako Sasaki, Tadashi Teshima, Toshihiro Yamamoto, Yuji Otsuka
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Patent number: 10396698Abstract: First pulse width modulation control is a control of generating a first pulse width modulation signal for a plurality of switching elements by comparison of modulated waves of voltage commands in phases based on a torque command for a motor with a carrier voltage, and performing switching of the plurality of switching elements. Second pulse width modulation control is a control of generating a second pulse width modulation signal for the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses per unit period of an electrical angle of the motor, and performing switching of the plurality of switching elements. An electronic control unit is configured to switch the plurality of switching elements between the first pulse width modulation control and the second pulse width modulation control at irregular time intervals.Type: GrantFiled: April 9, 2018Date of Patent: August 27, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshihiro Yamamoto, Kenji Yamada
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Patent number: 10374539Abstract: A driving device includes a motor, an inverter configured to drive the motor by switching a plurality of switching elements, and an electronic control unit configured to set voltage commands of phases according to temporary voltage commands of the phases based on a torque command of the motor and perform switching control of the switching elements by generating PWM signals for the switching elements by using the voltage commands of the phases and a carrier voltage. The electronic control unit is configured to switch a method of setting the voltage commands between a first method and a second method for each irregular time interval. The first method is a method of setting the voltage commands without superposing harmonics to the temporary voltage commands, and the second method is a method of setting the voltage commands by superposing the harmonics to the temporary voltage command.Type: GrantFiled: February 28, 2018Date of Patent: August 6, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshihiro Yamamoto, Kenji Yamada
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Publication number: 20190201455Abstract: An object of the present invention is to provide a safe and easy-to-prep cell product for prevention and/or treatment of organ fibrosis such as liver fibrosis. Provided is a cell product for prevention and/or treatment of organ fibrosis such as liver fibrosis, the cell product comprising a SSEA-3-positive pluripotent stem cell (Muse cell) derived from mesenchymal tissue in a living body or a cultured mesenchymal cell.Type: ApplicationFiled: June 30, 2017Publication date: July 4, 2019Applicants: TOHOKU UNIVERSITY, LIFE SCIENCE INSTITUTE, INC.Inventors: Mari DEZAWA, Michiaki UNNO, Toshihiro YAMAMOTO, Yasuhiro SHINDO, Hiroto HARA, Naoya MASUTOMI
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Patent number: 10305048Abstract: Disclosed are an organic electroluminescent device that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple construction, and a material for an organic electroluminescent device to be used in the device. The material is a material for an organic electroluminescent device formed of a carborane compound having an indolocarbazole skeleton and one or two or more carborane groups each bonded thereto directly or through a divalent group. In addition, the device is an organic electroluminescent device having organic layers including a light-emitting layer between an anode and a cathode laminated on a substrate, in which at least one layer of the organic layers contains the material for an organic electroluminescent device. In addition, the device is an organic electroluminescent device containing, as a host material for a light-emitting layer containing a phosphorescent light-emitting dopant and the host material, the material for an organic electroluminescent device.Type: GrantFiled: February 23, 2015Date of Patent: May 28, 2019Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.Inventors: Junya Ogawa, Takahiro Kai, Tokiko Ueda, Masashi Tada, Masaki Komori, Toshihiro Yamamoto
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Patent number: 10288604Abstract: The present invention has an object of providing a sugar derivative emitting blue fluorescence color which can be used for imaging of cells or intracellular molecules and a method for imaging cells using the derivative. Further, the present invention has an object of providing a method for detecting cancer cells at high accuracy by imaging, and an imaging agent used for this method. The present invention provides a fluorescently labeled sugar derivative having 3-carboxy-6,8-difluoro-7-hydroxycoumarin or 3-carboxymethyl-6,8-difluoro-7-hydroxy-4-methylcoumarin as a fluorescent molecular group in its molecule, and a cell imaging agent and an imaging method using the derivative. Further, the present invention provides an imaging agent and an imaging method for cancer cells using an L-glucose derivative having the above-described fluorescent molecular group in its molecule.Type: GrantFiled: October 1, 2013Date of Patent: May 14, 2019Assignee: HIROSAKI UNIVERSITYInventors: Katsuya Yamada, Tadashi Teshima, Toshihiro Yamamoto
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Patent number: 10279802Abstract: As a control of an inverter, a first pulse width modulation control switches a plurality of switching elements by generating a first pulse width modulation signal of the switching elements, and a second pulse width modulation control switches the switching elements by generating a second pulse width modulation signal of the switching elements based on a voltage modulation rate, a voltage phase, and the number of pulses per unit cycle of an electrical angle of the motor based on the torque command and has a smaller number of switchings of the switching elements than the first pulse width modulation control. The first pulse width modulation control and the second pulse width modulation control are executed in a switched manner. Execution of the second pulse width modulation control as the control of the inverter is restricted when the quietness is needed, compared with when the quietness is not needed.Type: GrantFiled: September 19, 2017Date of Patent: May 7, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kiyotaka Matsubara, Kenji Yamada, Toshihiro Yamamoto
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Patent number: 10103656Abstract: A vehicle performs first PWM control of generating a first PWM signal of a plurality of switching elements to switch the plurality of switching elements by comparing voltage commands of phases based on a torque command with a carrier voltage when a target operating point including a rotation speed and the torque command of the motor is outside a predetermined area, and selects and performs second PWM control of generating a second PWM signal of the plurality of switching elements to switch the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses in a predetermined period of an electrical angle of the motor or the first PWM control when the target operating point is inside the predetermined area.Type: GrantFiled: April 25, 2017Date of Patent: October 16, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshihiro Yamamoto, Kenji Yamada
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Publication number: 20180294761Abstract: First pulse width modulation control is a control of generating a first pulse width modulation signal for a plurality of switching elements by comparison of modulated waves of voltage commands in phases based on a torque command for a motor with a carrier voltage, and performing switching of the plurality of switching elements. Second pulse width modulation control is a control of generating a second pulse width modulation signal for the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses per unit period of an electrical angle of the motor, and performing switching of the plurality of switching elements. An electronic control unit is configured to switch the plurality of switching elements between the first pulse width modulation control and the second pulse width modulation control at irregular time intervals.Type: ApplicationFiled: April 9, 2018Publication date: October 11, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshihiro Yamamoto, Kenji Yamada
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Patent number: 10093199Abstract: When an absolute value of a rotation speed change rate of a motor is equal to or less than a threshold and an absolute value of a torque command change rate of the motor is equal to or less than a threshold, a switching angle is changed by cyclically changing a pulse type or the number of pulses as change in a pulse pattern. With this, respective order components of harmonics are dispersed, whereby it is possible to reduce the degree of prominence of a specific order component in harmonics relative to other order components.Type: GrantFiled: April 24, 2017Date of Patent: October 9, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshihiro Yamamoto, Kenji Yamada
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Patent number: 10081256Abstract: A vehicle includes an electronic control unit. The electronic control unit is configured to perform control of an inverter by switching a plurality of controls including i) first PWM control of generating a first PWM signal of a plurality of switching elements by comparison of voltage commands of respective phases based on a torque command of a motor with a carrier voltage and switching the plurality of switching elements, and ii) second PWM control of generating a second PWM signal of the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses in a predetermined period of an electrical angle of the motor and switching the plurality of switching elements. The electronic control unit is configured to limit execution of the second PWM control when an abnormality occurs in the rotational position sensor.Type: GrantFiled: April 24, 2017Date of Patent: September 25, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenji Yamada, Toshihiro Yamamoto, Masashi Mizuno