Patents by Inventor Masayuki Ito

Masayuki Ito 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: 20220069693
    Abstract: A control device for a converter including a one-phase or multiple-phase converter circuit includes: a magnetic coupling determination unit configured to determine whether the converter circuit is a magnetically coupled circuit in which a reactor of the converter circuit is in a magnetically coupled state; and a control unit configured to change a control method for the converter according to a determination result of the magnetic coupling determination unit.
    Type: Application
    Filed: August 23, 2021
    Publication date: March 3, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiko KANEKO, Masayuki ITO
  • Publication number: 20220034225
    Abstract: A ventilation system including a building having a space inside, a subterranean facility arranged in a basement of the building and having a subterranean space inside, a communication passage establishing communication between the space and the subterranean space, and a ventilation hole establishing communication between an earth outside the building and the subterranean space is provided. A fuel cell unit having an exhaust port is arranged in the subterranean space. The communication passage has a lateral wall protruding downward from a ceiling of the subterranean space. The lateral wall is arranged on the exhaust port side when the communication passage is arranged on a straight line linking the exhaust port and a second opening portion of the ventilation hole on the subterranean space side. The lateral wall is arranged on the straight line side when the communication passage is arranged at a position spaced apart from the straight line.
    Type: Application
    Filed: June 1, 2021
    Publication date: February 3, 2022
    Inventor: Masayuki ITO
  • Patent number: 11239480
    Abstract: A fuel cell system includes: a fuel cell unit; first and second supply systems; a switching device; a switching control unit, when required power of the fuel cell unit is equal to or smaller than a threshold; an open circuit voltage obtaining unit; and a supply system control unit.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: February 1, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayuki Ito, Tomohiko Kaneko, Hideyuki Kumei
  • Publication number: 20220026453
    Abstract: The automatic analyzer includes a first storage device that stores sample information including a measurement result of a reaction solution for each sample and a second storage device that stores the sample information on at least a part of the samples among the sample information stored in the first storage device, in which when the automatic analyzer reaches a predetermined operation state, the control device performs a backup process of backing up the sample information on the samples satisfying a predetermined backup condition from the first storage device to the second storage device, and deleting the sample information on the backed up samples from the first storage device.
    Type: Application
    Filed: November 12, 2019
    Publication date: January 27, 2022
    Inventors: Masayuki ITO, Osamu MATSUMOTO, Ryota WATANABE
  • Patent number: 11196065
    Abstract: An output performance diagnosis apparatus for a fuel cell acquires, in a case where determination is made that a representative value of impedance of the fuel cell acquired during a trip of a vehicle traveling with a fuel cell as a power source is equal to or less than an impedance threshold, during the trip in which the impedance is acquired, a current-voltage characteristic of the fuel cell based on a change of an output voltage of the fuel cell after a period in which the output voltage of the fuel cell is maintained in a range equal to or higher than a lower limit voltage and equal to or lower than a voltage threshold higher than the lower limit voltage over a predetermined period or more, and calculates maximum output electric power of the fuel cell based on the acquired current-voltage characteristic.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: December 7, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasushi Araki, Masaaki Matsusue, Masayuki Ito
  • Publication number: 20210359322
    Abstract: A fuel cell is provided with: a membrane electrode assembly (MEA); and a cathode-side separator assembled to the MEA, the cathode-side separator including first passages on a first surface of the cathode-side separator on a side closer to the MEA, and second passages on a second surface of the cathode-side separator on an opposite side, the first and second passages allowing oxidant gas to flow through the first and second passages, respectively.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto ADACHI, Naoki TAKEHIRO, Masaaki MATSUSUE, Masayuki ITO, Hideo NAGAOSA
  • Patent number: 11177493
    Abstract: A fuel cell system is equipped with a fuel cell unit that is composed of a plurality of fuel cells including a first fuel cell and a second fuel cell, a first supply device and a second supply device that supply reactive gas to the first fuel cell and the second fuel cell respectively, and a control device that controls running of the first fuel cell and the second fuel cell and operation of the first supply device and the second supply device. The control device suspends electric power generation by the first fuel cell and drives the first supply device to hold an opening circuit voltage of the first fuel cell within a target range, and suspends electric power generation by the second fuel cell and stops driving the second supply device when an output P required of the fuel cell unit is equal to 0.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: November 16, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayuki Ito, Yasushi Araki, Tomohiko Kaneko
  • Patent number: 11165080
    Abstract: A fuel cell system includes a fuel cell, a supply device configured to supply a cathode gas to the fuel cell; and a control unit configured to execute recovery processing of causing a catalyst of the fuel cell to recover from performance deterioration by lowering an output voltage of the fuel cell. The control unit is configured to, when the recovery processing that has been executed is completed, control the supply device to place the fuel cell in a power generation paused state while making a stoichiometric ratio of the cathode gas lower than a stoichiometric ratio of the cathode gas in a normal operation state that is a state before execution of the recovery processing.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: November 2, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiko Kaneko, Masayuki Ito, Hideyuki Kumei
  • Patent number: 11145877
    Abstract: A fuel cell includes: an electrolyte membrane; first and second catalyst layers respectively formed on first and second surface of the electrolyte membrane; and a separator disposed opposite to the electrolyte membrane with respect to the first catalyst layer.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 12, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobuaki Nonoyama, Norishige Konno, Masayuki Ito
  • Patent number: 11145883
    Abstract: A fuel cell system includes: a first fuel cell; a second fuel cell having a greater maximum power output than the first fuel cell; and a controller configured to cause the first fuel cell to generate greater electric power greater than the second fuel cell when the requested power is smaller than a first threshold, cause the second fuel cell to generate greater electric power than the first fuel cell when the requested power is a second threshold, which is the first threshold or greater and smaller than a third threshold that is greater than the second threshold, is 70% of the maximum power output of the second fuel cell or grater, and is 100% of the maximum power output of the second fuel cell or smaller, and cause both the first and second fuel cells to generate electric power when the requested power is the third threshold or greater.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 12, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masayuki Ito
  • Patent number: 11145882
    Abstract: A fuel cell system includes: a fuel cell unit; first and second supply systems; a switching device; a switching control unit; an open circuit voltage obtaining unit; and a supply system control unit.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: October 12, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayuki Ito, Hideyuki Kumei, Tomohiko Kaneko
  • Patent number: 11139490
    Abstract: A fuel cell system includes: a secondary battery; first and second fuel cells; first and second scavenging devices configured to scavenge the first and second fuel cells, respectively; and a control device configured to perform a first scavenging process of scavenging the first fuel cell by driving the first scavenging device using a charged power of the secondary battery when the first and second fuel cells are in a power generation stopped state and to perform a second scavenging process of scavenging the second fuel cell by driving the second scavenging device using a generated power of the first fuel cell when the first fuel cell is in a power generation state and the second fuel cell is in the power generation stopped state.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: October 5, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideyuki Kumei, Masayuki Ito, Tomohiko Kaneko
  • Patent number: 11101488
    Abstract: A fuel cell system includes a plurality of fuel cell stacks, a power generation control unit that controls power generation of the plurality of fuel cell stacks based on a required power for the plurality of fuel cell stacks, and a refreshing control unit configured to perform a refreshing process of decreasing a voltage on the plurality of fuel cell stacks. The refreshing control unit performs the refreshing process on the first fuel cell stack when the required power changes from a state in which the required power is less than a first predetermined value to a state in which the required power is equal to or greater than the first predetermined value and when the required power is in a range which is equal to or greater than the first predetermined value and less than the second threshold value.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 24, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masayuki Ito
  • Patent number: 11094949
    Abstract: A fuel cell system includes: a fuel cell; a supply device; and a control unit configured to lower output voltage of the fuel cell to a target value so as to execute recovery processing to recover power generation performance of the fuel cell. In a case of having an execution request of the recovery processing, the control unit restarts power generation of the fuel cell when open circuit voltage of the fuel cell is lowered to or smaller than a threshold value higher than the target value by controlling a flow rate of a cathode gas while the power generation of the fuel cell is paused, and the control unit executes the recovery processing while controlling an output current value of the fuel cell to be smaller than an idle current value that is an output current value of the fuel cell in an idle operation state.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 17, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiko Kaneko, Masayuki Ito
  • Patent number: 11069912
    Abstract: A fuel cell system includes: a first fuel cell stack and a second fuel cell stack; a supply passage connected to an inlet of oxidant gas in the first fuel cell stack; an discharge passage connected to an outlet of the oxidant gas in the second fuel cell stack; introduction unit that introduces water in the oxidant gas flowing through the discharge passage into the supply passage; and a controller configured to perform refresh control of the first fuel cell stack by lowering voltage of the first fuel cell stack, and operates, during the refresh control, the introduction unit while keeping the second fuel cell stack in an electric power generation state.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: July 20, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayuki Ito, Tomohiko Kaneko
  • Patent number: 11046770
    Abstract: [Problem] Provided is an anti-human BDCA-2 antibody for preventing or treating an autoimmune disease by binding to a human BDCA-2 to control the function of a plasmacytoid dendritic cell through human BDCA-2.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 29, 2021
    Assignee: Astellas Pharma Inc.
    Inventors: Shinsuke Nakao, Masayuki Ito, Yoshiyuki Tenda
  • Patent number: 10930448
    Abstract: A push-button switch member includes: a movable contact and an operation key disposed facing the protruding side thereof, and in contact therewith or spaced therefrom. The movable contact includes: an upper contact portion disposed directly under a key body; an outer fixed portion in the upper contact portion or more outward therefrom in the radial direction, and fixed more outward in the radial direction than the key body; and a non-contacting outer portion provided more outward in the radial direction than the upper contact portion, and disposed to face in a non-contacting state another contact so as to be able to contact another contact which is disposed on an outer side in the radial direction and contacted by the upper contact portion when pushed by the key body. The non-contacting outer portion has a bottom portion for a line contact or a surface contact with another contact.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: February 23, 2021
    Assignee: SHIN-ETSU POLYMER CO., LTD.
    Inventors: Masayuki Ito, Toshihiro Motoki
  • Publication number: 20210041468
    Abstract: An objective of the present invention is to develop methods capable of determining the severity of neonatal hypoxic-ischemic encephalopathy and predicting prognosis after treatment by therapeutic hypothermia, conveniently and with a high predictive value. The severity of neonatal hypoxic-ischemic encephalopathy can be determined and prognosis after treatment by therapeutic hypothermia can be predicted easily based on whether or not the mass per unit volume of a soluble LOX-1 protein or a fragment thereof contained in blood collected from a subject within 6 hours after birth is equal to or higher than a specific cut-off value.
    Type: Application
    Filed: March 29, 2019
    Publication date: February 11, 2021
    Applicant: NATIONAL CENTER OF NEUROLOGY AND PSYCHIATRY
    Inventors: Masayuki ITO, Tomohisa AKAMATSU
  • Patent number: 10897052
    Abstract: Provided is a fuel cell system including: a fuel cell; a tank that stores a fuel gas; a supply passage through which the fuel gas is supplied from the tank to the fuel cell; a first valve and a second valve that open and close the supply passage and are provided in order of the first valve, the second valve in a direction from an upstream side toward a downstream side; a pressure sensor that detects a pressure in a detection target region that is a region of the supply passage between the first valve and the second valve; a heating unit that heats the pressure sensor; and a controller that makes the heating unit heat the pressure sensor in a state in which a detection value of the pressure sensor is not larger than a predetermined threshold value.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: January 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Fujita, Masayuki Ito
  • Patent number: 10818955
    Abstract: A fuel cell unit includes: a fuel cell module including a fuel cell stack including: a stacked body in which unit cells are stacked; a pair of end plates sandwiching the stacked body in a stacking direction; a facing member facing an outer surface of the stacked body extending along the stacking direction; and first and second restriction members arranged between the facing member and the stacked body, and restricting a position of the stacked body in a direction perpendicular to the stacking direction by contacting with the outer surface; and fixing members fixing the fuel cell module to a fixed member.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: October 27, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoaki Uchiyama, Masayuki Ito