Patents by Inventor Masatoshi Hiyoshi

Masatoshi Hiyoshi 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: 20230130590
    Abstract: A vehicle includes a battery for traveling; an air conditioner that includes a defroster mode and that is configured to air-condition a vehicle cabin using a refrigeration cycle; a battery cooler configured to cool the battery with a coolant that is cooled by heat exchange with a refrigerant flowing through the air conditioner; and a control unit configured to control the air conditioner and the battery cooler. In a case where a temperature of the battery is higher than a reference temperature, the control unit operates the battery cooler and controls the air conditioner such that the air conditioner operates in the defroster mode when the vehicle is moving, and the control unit operates the battery cooler and stops the air conditioner when the vehicle is stopped.
    Type: Application
    Filed: September 1, 2022
    Publication date: April 27, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Masatoshi HIYOSHI, Yoshio HASEGAWA, Haruka TSURUTA, Makoto IKEGAMI, Kazuya FUKE
  • Publication number: 20220396123
    Abstract: A thermal management system includes a first cooler that cools a first heat source, a first circulation path that connects the first cooler and a first pump, a second cooler that cools a second heat source, a second circulation path that connects the second cooler and a second pump, a changeover valve, and a controller. The changeover valve is switchable between first and second valve positions. The first and second circulation paths are separated from each other when the changeover valve is in the first valve position. The controller causes both the first and second pumps to operate when the temperature difference between refrigerants in the first and second circulation paths is more than a predetermined temperature difference threshold when the changeover valve is set to the first valve position and one of the first and second pumps is operating and the other is not operating.
    Type: Application
    Filed: May 9, 2022
    Publication date: December 15, 2022
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio Hasegawa, Masatoshi Hiyoshi, Haruka Tsuruta
  • Publication number: 20220223941
    Abstract: A battery unit disclosed herein includes a cell stack, bus bars, a cooler, and a heat transfer member. The cell stack includes a first surface and a second surface opposite to the first surface. The cooler includes a cooling surface that faces the second surface of the cell stack to cool the cell stack. The heat transfer member is arranged between the second surface of the cell stack and the cooling surface of the cooler to transfer heat of the cell stack to the cooler. The cooling surface of the cooler has a flat shape. The heat transfer member includes a plurality of bands extending along a stacking direction. The bands are located away from each other. At least one of the bands at least partially overlaps each of electrodes of a plurality of battery cells when viewed in a direction orthogonal to the cooling surface.
    Type: Application
    Filed: November 12, 2021
    Publication date: July 14, 2022
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Hisashi Sugiyama, Wataru Kubo, Ryota Aoki, Masatoshi Hiyoshi, Haruka Tsuruta
  • Patent number: 10145275
    Abstract: An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit with a filter element that filters oil, and a deterioration prevention unit having a powdery deterioration prevention agent that prevents deterioration of oil, wherein out of oil fed from an oil containing unit, oil filtered by the filtering unit is fed to a part to be lubricated, and oil that is prevented from being deteriorated by the deterioration prevention unit is returned to the oil containing unit or sent to the part to be lubricated.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 4, 2018
    Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiro Saito, Hideto Morishita, Ippei Fukutomi, Motoichi Murakami, Katsuichi Miyasaka, Masatoshi Hiyoshi, Koji Morita
  • Patent number: 9844743
    Abstract: An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit including a filter element that filters oil, and a deterioration prevention unit including a powdery deterioration prevention agent that prevents deterioration of oil, wherein the deterioration prevention unit includes a passage wall that retains the deterioration prevention agent and forms an oil passage.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 19, 2017
    Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiro Saito, Hideto Morishita, Ippei Fukutomi, Motoichi Murakami, Katsuichi Miyasaka, Masatoshi Hiyoshi, Koji Morita
  • Patent number: 9592459
    Abstract: An oil filter includes a casing (2) having a cylinder portion formed with an opening in one end thereof and a threaded portion formed on an inner peripheral surface of the cylinder portion, and a cap (6) threadably engaging with the threaded portion to contain a filter element between the casing (2) and the cap (6). The cap (6) includes a flange abutted on an open end surface of the cylinder portion of the casing (2) and allowing the cap (6) to be positioned by the casing (2), and a recess fittably receiving a sealing member for obstructing oil flow between the cap (6) and the casing (2). The cap (6) is formed with a facilitating portion that allows at least a part of the sealing member to move onto a radial end surface of the flange when the sealing member is mounted on an outer peripheral surface of the cap (6) at a place between the flange and the recess and the cap (6) is positioned by the casing (2).
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 14, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masatoshi Hiyoshi
  • Publication number: 20140339144
    Abstract: An oil filter includes a casing (2) having a cylinder portion formed with an opening in one end thereof and a threaded portion formed on an inner peripheral surface of the cylinder portion, and a cap (6) threadably engaging with the threaded portion to contain a filter element between the casing (2) and the cap (6). The cap (6) includes a flange abutted on an open end surface of the cylinder portion of the casing (2) and allowing the cap (6) to be positioned by the casing (2), and a recess fittably receiving a sealing member for obstructing oil flow between the cap (6) and the casing (2). The cap (6) is formed With a facilitating portion that allows at least a part of the sealing member to move onto a radial end surface of the flange when the sealing member is mounted on an outer peripheral surface of the cap (6) at a place between the flange and the recess and the cap (6) is positioned by the casing (2).
    Type: Application
    Filed: September 10, 2012
    Publication date: November 20, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masatoshi Hiyoshi
  • Publication number: 20140263022
    Abstract: An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit including a filter element that filters oil, and a deterioration prevention unit including a powdery deterioration prevention agent that prevents deterioration of oil, wherein the deterioration prevention unit includes a passage wall that retains the deterioration prevention agent and forms an oil passage.
    Type: Application
    Filed: October 18, 2012
    Publication date: September 18, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yasuhiro Saito, Hideto Morishita, Ippei Fukutomi, Motoichi Murakami, Katsuichi Miyasaka, Masatoshi Hiyoshi, Koji Morita
  • Publication number: 20140251883
    Abstract: An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit with a filter element that filters oil, and a deterioration prevention unit having a powdery deterioration prevention agent that prevents deterioration of oil, wherein out of oil fed from an oil containing unit, oil filtered by the filtering unit is fed to a part to be lubricated, and oil that is prevented from being deteriorated by the deterioration prevention unit is returned to the oil containing unit or sent to the part to be lubricated.
    Type: Application
    Filed: October 18, 2012
    Publication date: September 11, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yasuhiro Saito, Hideto Morishita, Ippei Fukutomi, Motoichi Murakami, Katsuichi Miyasaka, Masatoshi Hiyoshi, Koji Morita