Patents by Inventor Masayuki Yoshikawa

Masayuki Yoshikawa 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).

  • Publication number: 20250095419
    Abstract: A controller for a vehicle equipped with a motor for running includes one or more processors and one or more recording media storing a program to be executed by the one or more processors. The program includes one or more instructions configured to cause the one or more processors to perform a sweep driving process including sweeping an excitation frequency of vibration applied to a vehicle body of the vehicle by the motor while driving the motor during an inspection of the vehicle.
    Type: Application
    Filed: August 21, 2024
    Publication date: March 20, 2025
    Applicant: SUBARU CORPORATION
    Inventors: Yutaka MAEDA, Yoichi FURUYA, Hisao IMAIZUMI, Yuta SASAKI, Hiroyuki KOBAYASHI, Yukio KOJIMA, Masayuki KANEKO, Naotoshi YOSHIKAWA, Katsuya SHINNO, Takafumi ITAGAKI, Shota KAWAMURA, Kazuyuki KONDO
  • Patent number: 12240310
    Abstract: Provided is a structure of the floor of a vehicle having a battery pack mounted on the lower side of the floor, the structure including a floor panel constituting the floor; a floor tunnel extending in the front-rear direction of the vehicle on the middle portion of the floor panel; a lower dash panel disposed in front of the floor panel and the floor tunnel; and an electromagnetic wave shielding panel covering a corner where the floor panel, the floor tunnel, and the lower dash panel are connected to each other.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: March 4, 2025
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Yoshikawa, Kenichi Ichinose, Hiroyuki Nishimura, Michio Yasunishi
  • Patent number: 12218228
    Abstract: Provided is a semiconductor device, including: a semiconductor substrate including a bulk donor; an active portion provided on the semiconductor substrate; and an edge termination structure portion provided between the active portion and an end side of the semiconductor substrate on a upper surface of the semiconductor substrate; wherein the active portion includes hydrogen, and has a first high concentration region with a higher donor concentration than a bulk donor concentration; and the edge termination structure portion, which is provided in a range that is wider than the first high concentration region in a depth direction of the semiconductor substrate, includes hydrogen, and has a second high concentration region with a higher donor concentration than the bulk donor concentration.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: February 4, 2025
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Koh Yoshikawa, Masayuki Momose, Toshiyuki Matsui
  • Publication number: 20250033033
    Abstract: To make liquid unlikely to drip from a pipette when the pipette is tilted. A pipette includes a main body portion, a tapered portion, and a distal end portion. The main body portion has a hollow cylindrical shape. The tapered portion has a hollow cylindrical shape, and extends further than a distal end of the main body portion in a distal direction. An inner diameter of a proximal end of the tapered portion is less than or equal to an inner diameter of the distal end of the main body portion. The tapered portion has an inner diameter decreasing in the distal direction. The distal end portion has a hollow cylindrical shape, extends from a distal end of the tapered portion in the distal direction, and has an inner diameter that is less than or equal to an inner diameter of the distal end of the tapered portion.
    Type: Application
    Filed: December 26, 2022
    Publication date: January 30, 2025
    Inventors: Yoshihiro YOSHIKAWA, Masayuki TOYOSHIMA, Ryosuke NAKAMURA, Kazunari ABE
  • Patent number: 12208375
    Abstract: A functional structure which can resist a decrease in the function of the functional material and thus have a long life, can be free from the need for complicated replacement operation, can contribute to resource-saving, and can exhibit high catalytic activity when used, for example, as a catalyst. The functional structure includes supports each having porous structure and including a zeolite-type compound, and at least one functional substance present in the supports, in which each of the supports has channels communicating with one another, the functional material is present at least in the channel of each of the supports, and the supports have an average external size of 20 ?m or less.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: January 28, 2025
    Assignees: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Mai Nishii, Yuichiro Banba, Kaori Sekine, Yukako Nakai, Masayuki Fukushima, Sadahiro Kato, Takao Masuda, Yuta Nakasaka, Takuya Yoshikawa
  • Patent number: 11749854
    Abstract: In a battery cooling structure for a vehicle, a battery including a plurality of cell groups arrayed in a vehicle body front-and-rear direction. Each cell group includes a plurality of cuboid cells that are arrayed in a thickness direction of the cells. Each cell includes a positive terminal provided at one side wall extending in a short side direction of the cell and a negative terminal provided at another side wall extending in the short side direction. The positive terminals of one of the cell groups and the negative terminals of another of the cell groups, which cell groups are adjacent in the vehicle body front-and-rear direction, oppose one another in plan view.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: September 5, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenichi Ichinose, Masayuki Yoshikawa, Hiroyuki Nishimura, Kazuhisa Ori, Hidetoshi Katoh
  • Patent number: 11677340
    Abstract: A motor drive device that includes: a power control unit that drives a motor, which configures a motive power source of a moving body, by supplying a drive signal modulated according to a carrier frequency; a memory; and a processor that is coupled to the memory, the processor being configured to: predict torque demand on the motor, and change the carrier frequency of the power control unit in a case in which an increase in the torque demand on the motor has been predicted.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: June 13, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hidetoshi Katoh, Masayuki Yoshikawa, Kenichi Ichinose, Hiroyuki Nishimura, Kazuhisa Ori
  • Patent number: 11670820
    Abstract: A battery mounting structure of a vehicle includes a battery case, a cable and a shielding member. The battery case includes a lower case and an upper case. In each of plural battery cell groups, plural battery cells are arrayed in a first direction. The battery cell groups are accommodated in the battery case in a state in which the battery cell groups are arrayed along a second direction, which is orthogonal to the first direction in plan view. The cable is routed at an upper face side of the battery cell groups so as to connect the battery cells in series. The shielding member is configured by a conductor so as to form an electrical loop, and is provided at the upper case so as to be overlapped with at least a portion of the cable in plan view.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: June 6, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Yoshikawa, Kenichi Ichinose, Hiroyuki Nishimura, Hidetoshi Katoh, Kazuhisa Ori
  • Patent number: 11585875
    Abstract: A magnetic field measurement device measures a magnetic flux density vector or a magnetic field vector generated from each of segments obtained by segmenting a measurement target surface of a vehicle. A magnetic field evaluation device includes a propagation intensity calculation unit and a display control unit. The propagation intensity calculation unit calculates propagation intensity that is the intensity of a magnetic field or the magnitude of magnetic flux density that propagates from each of the segments to an evaluation point that is separated from the measurement target surface with use of the magnetic flux density vector or the magnetic field vector in each of the segments and a separation distance between the segments and the evaluation point. A display control unit displays on a display unit a propagation intensity distribution image indicating the position of the evaluation point and distribution of the propagation intensity in each of the segments.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: February 21, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Yoshikawa, Hiroyuki Nishimura, Kazuhisa Ori, Kenichi Ichinose
  • Publication number: 20220348067
    Abstract: Provided is a structure of the floor of a vehicle having a battery pack mounted on the lower side of the floor, the structure including a floor panel constituting the floor; a floor tunnel extending in the front-rear direction of the vehicle on the middle portion of the floor panel; a lower dash panel disposed in front of the floor panel and the floor tunnel; and an electromagnetic wave shielding panel covering a corner where the floor panel, the floor tunnel, and the lower dash panel are connected to each other.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 3, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Yoshikawa, Kenichi Ichinose, Hiroyuki Nishimura, Michio Yasunishi
  • Publication number: 20220268862
    Abstract: A magnetic field measurement device measures a magnetic flux density vector or a magnetic field vector generated from each of segments obtained by segmenting a measurement target surface of a vehicle. A magnetic field evaluation device includes a propagation intensity calculation unit and a display control unit. The propagation intensity calculation unit calculates propagation intensity that is the intensity of a magnetic field or the magnitude of magnetic flux density that propagates from each of the segments to an evaluation point that is separated from the measurement target surface with use of the magnetic flux density vector or the magnetic field vector in each of the segments and a separation distance between the segments and the evaluation point. A display control unit displays on a display unit a propagation intensity distribution image indicating the position of the evaluation point and distribution of the propagation intensity in each of the segments.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 25, 2022
    Inventors: Masayuki YOSHIKAWA, Hiroyuki NISHIMURA, Kazuhisa ORI, Kenichi ICHINOSE
  • Patent number: 11206751
    Abstract: A magnetic field shielding structure includes a magnetic field generating source configured to generate a magnetic field. The magnetic field shielding structure further includes a shielding member that includes a pair of layers. The pair of layers includes a layer having high magnetic permeability, and a layer having low magnetic permeability laminated with the layer having high magnetic permeability. The layer having high magnetic permeability is closer to the magnetic field generating source than the layer having low magnetic permeability.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: December 21, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Yoshikawa, Kenichi Ichinose, Kazuhisa Ori, Hiroyuki Nishimura, Hidetoshi Katoh
  • Publication number: 20210234142
    Abstract: A battery mounting structure of a vehicle includes a battery case, a cable and a shielding member. The battery case includes a lower case and an upper case. In each of plural battery cell groups, plural battery cells are arrayed in a first direction. The battery cell groups are accommodated in the battery case in a state in which the battery cell groups are arrayed along a second direction, which is orthogonal to the first direction in plan view. The cable is routed at an upper face side of the battery cell groups so as to connect the battery cells in series. The shielding member is configured by a conductor so as to form an electrical loop, and is provided at the upper case so as to be overlapped with at least a portion of the cable in plan view.
    Type: Application
    Filed: December 8, 2020
    Publication date: July 29, 2021
    Inventors: Masayuki YOSHIKAWA, Kenichi ICHINOSE, Hiroyuki NISHIMURA, Hidetoshi KATOH, Kazuhisa ORI
  • Publication number: 20210218086
    Abstract: In a battery cooling structure for a vehicle, a battery including a plurality of cell groups arrayed in a vehicle body front-and-rear direction. Each cell group includes a plurality of cuboid cells that are arrayed in a thickness direction of the cells. Each cell includes a positive terminal provided at one side wall extending in a short side direction of the cell and a negative terminal provided at another side wall extending in the short side direction. The positive terminals of one of the cell groups and the negative terminals of another of the cell groups, which cell groups are adjacent in the vehicle body front-and-rear direction, oppose one another in plan view.
    Type: Application
    Filed: November 16, 2020
    Publication date: July 15, 2021
    Inventors: Kenichi ICHINOSE, Masayuki YOSHIKAWA, Hiroyuki NISHIMURA, Kazuhisa ORI, Hidetoshi KATOH
  • Publication number: 20210194396
    Abstract: A motor drive device that includes: a power control unit that drives a motor, which configures a motive power source of a moving body, by supplying a drive signal modulated according to a carrier frequency; a memory; and a processor that is coupled to the memory, the processor being configured to: predict torque demand on the motor, and change the carrier frequency of the power control unit in a case in which an increase in the torque demand on the motor has been predicted.
    Type: Application
    Filed: November 5, 2020
    Publication date: June 24, 2021
    Inventors: Hidetoshi KATOH, Masayuki YOSHIKAWA, Kenichi ICHINOSE, Hiroyuki NISHIMURA, Kazuhisa ORI
  • Publication number: 20210161041
    Abstract: A magnetic field shielding structure includes a magnetic field generating source configured to generate a magnetic field. The magnetic field shielding structure further includes a shielding member that includes a pair of layers. The pair of layers includes a layer having high magnetic permeability, and a layer having low magnetic permeability laminated with the layer having high magnetic permeability. The layer having high magnetic permeability is closer to the magnetic field generating source than the layer having low magnetic permeability.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 27, 2021
    Inventors: Masayuki YOSHIKAWA, Kenichi ICHINOSE, Kazuhisa ORI, Hiroyuki NISHIMURA, Hidetoshi KATOH
  • Patent number: 9381223
    Abstract: Disclosed is an AGE production inhibitor or the like, which effectively inhibits the production of an advanced glycation end product (AGE), while having improved biological safety. Specifically disclosed is an AGE production inhibitor or the like, which contains en extract of cherry tree (preferably blossoms or leaves thereof) and/or a processed product of the extract as an active substance. The AGE production inhibitor or the like contains, as an active substance, at least one compound that is selected from among 1-O-(E)-Caffeoyl-?-D-glucopyranoside, 1-O-(E)-Coumaroyl-?-D-glucopyranoside, 1-O-(E)-Cinnamoyl-?-D-glucopyranoside, Kaempferol 3-O-?-D-glucopyranoside, Quercetin 3-O-?-D-glucopyranoside, Kaempferol 3-O-(6?-malony)-?-D-glucopyranoside, and Quercetin 3-O-(6?-malony)-?-D-glucopyranoside.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: July 5, 2016
    Assignee: ORYZA OIL & FAT CHEMICAL CO., LTD.
    Inventors: Hiroshi Shimoda, Takashi Watanabe, Hiromichi Murai, Masayuki Yoshikawa
  • Patent number: 9211860
    Abstract: A knee side face restraint airbag device comprising an inflator that generates gas upon actuation; and a knee side face restraint airbag that is disposed in a folded state at an outside in a vehicle width direction at an inside of a vehicle interior member, that inflates and deploys towards a vehicle cabin inside upon being supplied with gas generated from the inflator, and that restrains an outer lateral-side of a knee of a seated occupant.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: December 15, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masao Muraji, Masayuki Yoshikawa, Kosuke Taguchi, Kohei Ozawa
  • Publication number: 20150174188
    Abstract: Disclosed is an AGE production inhibitor or the like, which effectively inhibits the production of an advanced glycation end product (AGE), while having improved biological safety. Specifically disclosed is an AGE production inhibitor or the like, which contains en extract of cherry tree (preferably blossoms or leaves thereof) and/or a processed product of the extract as an active substance. The AGE production inhibitor or the like contains, as an active substance, at least one compound that is selected from among 1-O-(E)-Caffeoyl-?-D-glucopyranoside, 1-O-(E)-Coumaroyl-?-D-glucopyranoside, 1-O-(E)-Cinnamoyl-?-D-glucopyranoside, Kaempferol 3-O-?-D-glucopyranoside, Quercetin 3-O-?-D-glucopyranoside, Kaempferol 3-O-(6?-malony)-?-D-glucopyranoside, and Quercetin 3-O-(6?-malony)-?-D-glucopyranoside.
    Type: Application
    Filed: March 26, 2014
    Publication date: June 25, 2015
    Inventors: Hiroshi SHIMODA, Takashi Watanabe, Hiromichi Murai, Masayuki Yoshikawa
  • Publication number: 20140197622
    Abstract: A knee side face restraint airbag device comprising an inflator that generates gas upon actuation; and a knee side face restraint airbag that is disposed in a folded state at an outside in a vehicle width direction at an inside of a vehicle interior member, that inflates and deploys towards a vehicle cabin inside upon being supplied with gas generated from the inflator, and that restrains an outer lateral-side of a knee of a seated occupant.
    Type: Application
    Filed: January 9, 2014
    Publication date: July 17, 2014
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masao Muraji, Masayuki Yoshikawa, Kosuke Taguchi, Kohei Ozawa