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).

  • Patent number: 11221491
    Abstract: A head mounted display is worn on a head of a user. The head mounted display includes a display device configured to display image; a casing that houses the display device; a right-eye lens and a left-eye lens attached to the casing; and an inter-lens structure disposed between the right-eye lens and the left-eye lens. The head mounted display causes the user to recognize a color of at least a part of the inter-lens structure as a color that is equal to or brighter than a skin color when the user wears the head mounted display.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: January 11, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshihiro Sakatsume, Hiroyasu Makino, Yasutoshi Yamamoto
  • Publication number: 20210395234
    Abstract: An indazole compound represented by the following Formula (I) or a salt thereof: wherein X, R1, R2, ring A, L1, L2, L3, and R5 are as defined in this specification.
    Type: Application
    Filed: October 25, 2019
    Publication date: December 23, 2021
    Inventors: TOSHIHIRO SAKAMOTO, HIDEKI KAZUNO, TETSUYA SUGIMOTO, HITOMI KONDO, TOMOHIRO YAMAMOTO
  • Patent number: 11152884
    Abstract: 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: Grant
    Filed: March 6, 2020
    Date of Patent: October 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro Yamamoto, Hiroyuki Oyanagi
  • Publication number: 20210137148
    Abstract: 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: Application
    Filed: February 28, 2018
    Publication date: May 13, 2021
    Inventors: Kazuki Morimoto, Misa Arimoto, Hitoshi Takaguchi, Toshihiro Yamamoto
  • Patent number: 10850636
    Abstract: 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: Grant
    Filed: November 17, 2017
    Date of Patent: December 1, 2020
    Assignee: DENSO CORPORATION
    Inventors: Masashi Mizuno, Toshihiro Yamamoto, Kenji Yamada
  • Publication number: 20200304054
    Abstract: 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: Application
    Filed: March 6, 2020
    Publication date: September 24, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro YAMAMOTO, Hiroyuki OYANAGI
  • Publication number: 20200062032
    Abstract: 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: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventor: Toshihiro YAMAMOTO
  • Patent number: 10529932
    Abstract: 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: Grant
    Filed: February 26, 2015
    Date of Patent: January 7, 2020
    Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Junya Ogawa, Takahiro Kai, Tokiko Ueda, Masashi Tada, Masaki Komori, Toshihiro Yamamoto
  • Patent number: 10509041
    Abstract: 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: Grant
    Filed: April 19, 2018
    Date of Patent: December 17, 2019
    Assignee: HIROSAKI UNIVERSITY
    Inventors: Katsuya Yamada, Ayako Sasaki, Tadashi Teshima, Toshihiro Yamamoto, Yuji Otsuka
  • Patent number: 10396698
    Abstract: 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: Grant
    Filed: April 9, 2018
    Date of Patent: August 27, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro Yamamoto, Kenji Yamada
  • Patent number: 10374539
    Abstract: 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: Grant
    Filed: February 28, 2018
    Date of Patent: August 6, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro Yamamoto, Kenji Yamada
  • Publication number: 20190201455
    Abstract: 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: Application
    Filed: June 30, 2017
    Publication date: July 4, 2019
    Applicants: TOHOKU UNIVERSITY, LIFE SCIENCE INSTITUTE, INC.
    Inventors: Mari DEZAWA, Michiaki UNNO, Toshihiro YAMAMOTO, Yasuhiro SHINDO, Hiroto HARA, Naoya MASUTOMI
  • Patent number: 10305048
    Abstract: 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: Grant
    Filed: February 23, 2015
    Date of Patent: May 28, 2019
    Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Junya Ogawa, Takahiro Kai, Tokiko Ueda, Masashi Tada, Masaki Komori, Toshihiro Yamamoto
  • Patent number: 10288604
    Abstract: 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: Grant
    Filed: October 1, 2013
    Date of Patent: May 14, 2019
    Assignee: HIROSAKI UNIVERSITY
    Inventors: Katsuya Yamada, Tadashi Teshima, Toshihiro Yamamoto
  • Patent number: 10279802
    Abstract: 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: Grant
    Filed: September 19, 2017
    Date of Patent: May 7, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kiyotaka Matsubara, Kenji Yamada, Toshihiro Yamamoto
  • Patent number: 10103656
    Abstract: 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: Grant
    Filed: April 25, 2017
    Date of Patent: October 16, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshihiro Yamamoto, Kenji Yamada
  • Publication number: 20180294761
    Abstract: 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: Application
    Filed: April 9, 2018
    Publication date: October 11, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro Yamamoto, Kenji Yamada
  • Patent number: 10093199
    Abstract: 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: Grant
    Filed: April 24, 2017
    Date of Patent: October 9, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshihiro Yamamoto, Kenji Yamada
  • Patent number: 10081255
    Abstract: A vehicle includes an electronic control unit configured to perform control of an inverter by switching a plurality of controls including: 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 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 at least one of the current sensor or the voltage sensor.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 25, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Yamada, Toshihiro Yamamoto, Masashi Mizuno
  • Patent number: 10081256
    Abstract: 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: Grant
    Filed: April 24, 2017
    Date of Patent: September 25, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Yamada, Toshihiro Yamamoto, Masashi Mizuno