Patents by Inventor Ryuichi Iwata

Ryuichi Iwata 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: 11951692
    Abstract: The purpose of the present invention is to provide a fiber-reinforced resin material having minimal directionality of strength as well as excellent productivity, a method and device for manufacturing a fiber-reinforced resin material whereby a molded article is obtained, and a device for inspecting a fiber bundle group. A method for manufacturing a sheet-shaped fiber-reinforced resin material in which a paste (P1) is impregnated between cut fiber bundles (CF), the method for manufacturing a fiber-reinforced resin material including a coating step applying a coating of a paste (P1) on a first sheet (S11) conveyed in a predetermined direction, a cutting step for cutting a long fiber bundle (CF) using a cutter (113A), a scattering step for dispersing the cut fiber bundles (CF) and scattering the cut fiber bundles (CF) on the paste (P1), and an impregnation step for pressing a fiber bundle group (F1) and the paste (P1) on the first sheet (S11) and impregnating the paste (P1) between the fiber bundles (CF).
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: April 9, 2024
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroshi Iwata, Nobuyuki Yamamoto, Hajime Okutsu, Ryuichi Ishikawa, Koichi Akiyama, Takayuki Kobayashi
  • Publication number: 20230313388
    Abstract: A water electrolysis cell includes an anode disposed on one side across a solid polymer electrolyte membrane and a cathode disposed on another side. The anode is configured of an anode catalyst layer, an anode gas diffusion layer, and an anode separator, laminated in that order from a side of the solid polymer electrolyte membrane, a channel is provided in the anode separator, and the channel extends in a wave shape.
    Type: Application
    Filed: February 15, 2023
    Publication date: October 5, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Joji YOSHIMURA, Ryuichi IWATA, Tsuyoshi HAMAGUCHI, Tomoyuki KAYAMA, Takahiro IKEDA
  • Publication number: 20230304173
    Abstract: A water electrolysis cell includes an anode disposed on one side across a solid polymer electrolyte membrane and a cathode disposed on the other side. The anode is configured of an anode catalyst layer, an anode gas diffusion layer, and an anode separator, laminated in that order from a side of the solid polymer electrolyte membrane. The cathode is configured of a cathode catalyst layer, a cathode gas diffusion layer, and a cathode separator, laminated in that order from the side of the solid polymer electrolyte membrane. A first channel is provided in the anode separator, and a wall face of the first channel in the anode separator is imparted with water repellency. A second channel is provided in the cathode separator, and a wall face of the second channel in the cathode separator is imparted with hydrophilicity.
    Type: Application
    Filed: February 1, 2023
    Publication date: September 28, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Joji YOSHIMURA, Tomoyuki KAYAMA, Tsuyoshi HAMAGUCHI, Ryuichi IWATA, Takahiro IKEDA
  • Publication number: 20230295822
    Abstract: Provided is a method of controlling a load of a water electrolysis stack in which a plurality of water electrolysis cells including an anode disposed on one side and a cathode disposed on the other side with a solid polyelectrolyte film interposed are stacked and housed. The method includes determining an appropriate load based on a condition of an inside of the water electrolysis stack obtained from at least one of a temperature of the inside of the water electrolysis stack, an electrical resistance, or a water flow rate, and changing application of the load on the water electrolysis stack such that the load is the appropriate load.
    Type: Application
    Filed: February 8, 2023
    Publication date: September 21, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke FUJITA, Tsuyoshi HAMAGUCHI, Ryuichi IWATA, Tomoyuki KAYAMA, Takahiro IKEDA
  • Patent number: 10648710
    Abstract: A heat pump system generates cooling by evaporating a refrigerant using an evaporator, and generates cooling by using a compressor to desorb refrigerant that has been evaporated by the evaporator and adsorbed at an adsorption device.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 12, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Ryuichi Iwata, Tsutomu Shinagawa, Takafumi Yamauchi
  • Patent number: 10483571
    Abstract: A fuel cell system includes: a plurality of reactor vessels containing a hydrogen storage material; a hydrogen tank storing a hydrogen gas; a fuel cell; a cooling device to dissipate exhaust heat from the reactor vessels or the fuel cell to the outside; a hydrogen gas line that can switch supply routes of the hydrogen gas among the reactor vessels, the hydrogen tank, and the fuel cell; a heat exchange line that can switch circulation routes of a heat exchange medium among the reactor vessels, the fuel cell, and the cooling device; and a control mechanism to switch the supply routes of the hydrogen gas and the circulation routes of the heat exchange medium.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: November 19, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masakazu Aoki, Takafumi Yamauchi, Yasuki Hirota, Ryuichi Iwata
  • Patent number: 10415891
    Abstract: A heat exchanger comprising: a heat exchange unit that exchanges heat between a heat transfer medium and a heat exchange object; a phase change unit, which comprises a liquid phase space that accommodates the heat transfer medium in a liquid phase state, and a gas phase space that accommodates the heat transfer medium in a gas phase state, the heat transfer medium being capable of moving into and out of the gas phase space; and a first channel along which the heat transfer medium is moved from the phase change unit to the heat exchange unit, wherein the heat exchanger is configured such that a saturated vapor pressure at a temperature of the heat transfer medium in the liquid phase flowing into the phase change unit differs from a pressure of the heat transfer medium in the gas phase in the gas phase space.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 17, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuichi Iwata, Takafumi Yamauchi, Yasuki Hirota, Takashi Shimazu
  • Patent number: 10371424
    Abstract: A thermal transpiration flow heat pump includes an evaporator that vaporizes a medium, a condenser that condenses the medium, and a medium transport unit that is provided between the evaporator and the condenser. The medium transport unit includes a medium-temperature heat source portion that is placed on a side of the evaporator, a high-temperature heat source portion that is placed on a side of the condenser, and a thermal transpiration flow pump that is placed between the medium-temperature heat source portion and the high-temperature heat source portion.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: August 6, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ko Kugimoto, Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata
  • Patent number: 10365020
    Abstract: A switching device sequentially switches from having an evaporator-condenser generate an adsorbate and an adsorbent adsorb the adsorbate, to having an evaporator-condenser condense the adsorbate and an adsorbent desorb the adsorbate, such that the evaporator-condenser that generates the adsorbate and the adsorbent that adsorbs the adsorbate face each other, and the evaporator-condenser that condenses the adsorbate and the adsorbent that desorbs the adsorbate face each other. Accordingly, one adsorbent repeatedly desorbs and adsorbs in alternation, and another adsorbent repeatedly adsorbs and desorbs in alternation.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 30, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuichi Iwata, Takafumi Yamauchi, Yasuki Hirota, Takashi Shimazu
  • Patent number: 10309694
    Abstract: An adsorption heat pump includes: an evaporator/condenser including a section that evaporates a first heat exchange-medium and pipe through which a second heat exchange-medium flows; first adsorption devices, each including an adsorption-section in which the first heat exchange-medium that has been evaporated reacts and retains the first heat exchange-medium, and pipe through which the second heat exchange-medium flows; and second adsorption device in which first heat exchange-medium that has been released from the first adsorption devices reacts and retains the first heat exchange-medium.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 4, 2019
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu, Masaki Morita, Manabu Orihashi
  • Publication number: 20190049159
    Abstract: A heat pump system generates cooling by evaporating a refrigerant using an evaporator, and generates cooling by using a compressor to desorb refrigerant that has been evaporated by the evaporator and adsorbed at an adsorption device.
    Type: Application
    Filed: March 3, 2017
    Publication date: February 14, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki HIROTA, Ryuichi IWATA, Tsutomu SHINAGAWA, Takafumi YAMAUCHI
  • Patent number: 10168081
    Abstract: An adsorption heat pump system comprises an evaporator that evaporates an adsorbate; a first adsorption device that adsorbs the adsorbate of the evaporator and generates cooling in the evaporator; and a second adsorption device that adsorbs the adsorbate that was adsorbed by the first adsorption device and generates cooling in the first adsorption device.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 1, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu
  • Patent number: 10082321
    Abstract: An adsorption heat pump system includes a first adsorption device that adsorbs an adsorbate, and that regenerates on heating to a regeneration temperature or above; a second adsorption device that adsorbs an adsorbate, and that regenerates on heating to a regeneration temperature or above; and a vapor supply member that evaporates the adsorbate and supplies adsorbate vapor to the first adsorption device and the second adsorption device at different respective pressures.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: September 25, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu
  • Publication number: 20180019488
    Abstract: A fuel cell system includes: a plurality of reactor vessels containing a hydrogen storage material; a hydrogen tank storing a hydrogen gas; a fuel cell; a cooling device to dissipate exhaust heat from the reactor vessels or the fuel cell to the outside; a hydrogen gas line that can switch supply routes of the hydrogen gas among the reactor vessels, the hydrogen tank, and the fuel cell; a heat exchange line that can switch circulation routes of a heat exchange medium among the reactor vessels, the fuel cell, and the cooling device; and a control mechanism to switch the supply routes of the hydrogen gas and the circulation routes of the heat exchange medium.
    Type: Application
    Filed: July 3, 2017
    Publication date: January 18, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masakazu AOKI, Takafumi YAMAUCHI, Yasuki HIROTA, Ryuichi IWATA
  • Patent number: 9863673
    Abstract: A heat pump including an evaporator and an adsorber is provided. The adsorber is regenerated by applying heat from a chemical thermal storage reactor, a heat accumulator or an external heat source, at a temperature higher than or equal to a temperature to regenerate the adsorber.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: January 9, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takashi Shimazu, Takafumi Yamauchi, Tomohisa Wakasugi, Ryuichi Iwata
  • Publication number: 20170241718
    Abstract: A heat exchanger comprising: a heat exchange unit that exchanges heat between a heat transfer medium and a heat exchange object; a phase change unit, which comprises a liquid phase space that accommodates the heat transfer medium in a liquid phase state, and a gas phase space that accommodates the heat transfer medium in a gas phase state, the heat transfer medium being capable of moving into and out of the gas phase space; and a first channel along which the heat transfer medium is moved from the phase change unit to the heat exchange unit, wherein the heat exchanger is configured such that a saturated vapor pressure at a temperature of the heat transfer medium in the liquid phase flowing into the phase change unit differs from a pressure of the heat transfer medium in the gas phase in the gas phase space.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 24, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuichi IWATA, Takafumi YAMAUCHI, Yasuki HIROTA, Takashi SHIMAZU
  • Publication number: 20160341458
    Abstract: A thermal transpiration flow heat pump includes an evaporator that vaporizes a medium, a condenser that condenses the medium, and a medium transport unit that is provided between the evaporator and the condenser. The medium transport unit includes a medium-temperature heat source portion that is placed on a side of the evaporator, a high-temperature heat source portion that is placed on a side of the condenser, and a thermal transpiration flow pump that is placed between the medium-temperature heat source portion and the high-temperature heat source portion.
    Type: Application
    Filed: May 18, 2016
    Publication date: November 24, 2016
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ko KUGIMOTO, Yasuki HIROTA, Takafumi YAMAUCHI, Ryuichi IWATA
  • Publication number: 20160320109
    Abstract: A switching device sequentially switches from having an evaporator-condenser generate an adsorbate and an adsorbent adsorb the adsorbate, to having an evaporator-condenser condense the adsorbate and an adsorbent desorb the adsorbate, such that the evaporator-condenser that generates the adsorbate and the adsorbent that adsorbs the adsorbate face each other, and the evaporator-condenser that condenses the adsorbate and the adsorbent that desorbs the adsorbate face each other. Accordingly, one adsorbent repeatedly desorbs and adsorbs in alternation, and another adsorbent repeatedly adsorbs and desorbs in alternation.
    Type: Application
    Filed: April 22, 2016
    Publication date: November 3, 2016
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuichi IWATA, Takafumi YAMAUCHI, Yasuki HIROTA, Takashi SHIMAZU
  • Publication number: 20160258658
    Abstract: An adsorption heat pump includes: an evaporator/condenser including a section that evaporates a first heat exchange-medium and pipe through which a second heat exchange-medium flows; first adsorption devices, each including an adsorption-section in which the first heat exchange-medium that has been evaporated reacts and retains the first heat exchange-medium, and pipe through which the second heat exchange-medium flows; and second adsorption device in which first heat exchange-medium that has been released from the first adsorption devices reacts and retains the first heat exchange-medium.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 8, 2016
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuki HIROTA, Takafumi YAMAUCHI, Ryuichi IWATA, Takashi SHIMAZU, Masaki MORITA, Manabu ORIHASHI
  • Patent number: 9435573
    Abstract: An adsorption heat pump includes: a first evaporator that evaporates a first fluid; a condenser that condenses the first fluid; a heater; and a rotary adsorption device. The rotary adsorption device includes: partitioning portions that radially partition a space encircling the rotation axis into plural regions, that each include a flow path for internally retaining and discharging a second fluid, and that each include an adsorbent on an outer surface thereof or on a wall surface of the flow path; and a pair of closure portions that close off both ends, in the direction of the rotation axis, of the plural regions. Each of the partitioning portions is moved alternately between the first evaporator side and the condenser side by rotation around the rotation axis. In the partitioning portions, retention and discharge of the first fluid, and discharge and retention of the second fluid, are repeated.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 6, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu