Patents by Inventor Satoru Kawase

Satoru Kawase 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: 10781977
    Abstract: A high pressure tank includes: a resin liner for containing a fluid; a reinforced layer covering an outer surface of the liner; a cap including a supply/discharge hole to supply and discharge the fluid to and from the liner; an isolation wall member; and a communication unit. The cap includes a cylindrical protrusion having the supply/discharge hole formed therein. An opening is formed in the reinforced layer to expose the protrusion. The isolation wall member encloses the protrusion and the opening, and forms a closed space. The communication unit communicates with the closed space.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 22, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Naoki Ogiwara, Satoru Kawase
  • Publication number: 20200259195
    Abstract: A computation unit of a residual pressure determination system obtains a corresponding usage limit threshold value corresponding to a measured temperature value of a tank temperature, from a usage limit threshold value line calculated using at least one of a required minimum residual pressure line and an isopycnic line. When having determined that a measured internal pressure value has decreased to the corresponding usage limit threshold value, a determination unit stops release of hydrogen gas from a high pressure tank. A tank internal pressure indicated by the usage limit threshold value line within an allowable temperature range becomes greater than or equal to the tank internal pressure indicated by the isopycnic line or that indicated by a tangent line, and at least a portion of the tank internal pressure indicated by the usage limit threshold value line within the allowable temperature range becomes lower as the tank temperature becomes lower.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 13, 2020
    Inventors: Satoru Kawase, Kazuyuki Kadowaki
  • Publication number: 20200238820
    Abstract: A vehicle equipped with a high pressure tank has mounted in the interior of a vehicle body a high pressure tank having a resin liner and a reinforced layer, the vehicle comprising a tank chamber, a filling port, a concave portion in which the filling port and a ventilation port are disposed, a fuel lid capable of opening and closing an opening of the concave portion, and a ventilation passage that allows communication between the ventilation port and the tank chamber. When the fuel lid is opened, the ventilation port is opened to the exterior of the vehicle body, whereas when the fuel lid is closed, the ventilation port is covered by the fuel lid in a state in which the ventilation port is allowed to communicate with the exterior of the vehicle body.
    Type: Application
    Filed: January 27, 2020
    Publication date: July 30, 2020
    Inventors: Satoru KAWASE, Naoki OGIWARA, Kazuyuki KADOWAKI
  • Publication number: 20200232603
    Abstract: A high pressure container system is equipped with an upstream side pressure sensor that measures an internal pressure of high pressure containers upstream of a pressure regulating valve, a plurality of downstream side pressure sensors that measure the pressure of the fluid downstream of the pressure regulating valve, and a control device. At a normal time of the downstream side pressure sensors, a control device monitors the internal pressure of the high pressure containers on the basis of the measured values of the downstream side pressure sensors, and at an abnormal time when any one of the downstream side pressure sensors is abnormal, the control device monitors the internal pressure of the high pressure containers on the basis of the measured values of the downstream side pressure sensors, and the measured value of the upstream side pressure sensor.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 23, 2020
    Inventors: Satoru Kawase, Koichi Takaku, Kazuyuki Kadowaki
  • Publication number: 20200223317
    Abstract: A vehicle is provided with an interior chamber apart from a passenger compartment, and a container chamber in which a high pressure gas container is accommodated. A heat generating body is accommodated in the interior chamber. Further, in the vehicle, there are formed introduction ports through which atmospheric air is introduced into the interior chamber, a communication passage that enables communication between the interior chamber and the container chamber, and a lead-out port through which the atmospheric air is led out from the container chamber. The atmospheric air that is introduced into the interior chamber through the introduction ports flows into the container chamber via the communication passage, and furthermore, is led out to the exterior of the container chamber from the lead-out port.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 16, 2020
    Inventors: Satoru KAWASE, Naoki OGIWARA, Toshihiko KANEZAKI, Takatsugu KOYAMA
  • Patent number: 10355292
    Abstract: A method of controlling a fuel cell system includes supplying a fuel gas from a fuel-gas storage container to a fuel cell via a drive valve provided in a fuel-gas path. A first pressure is detected in the fuel-gas path between a first decompression mechanism and a second decompression mechanism. A second pressure is detected in the fuel-gas path between the second decompression mechanism and the drive valve. An on-off valve is opened. The on-off valve is provided in a bypass path. The first pressure and the second pressure are compared after the on-off valve has been opened. The fuel cell system is controlled to decrease electric power generated by the fuel cell or to stop generating electric power in the fuel cell when the first pressure is not substantially equal to the second pressure.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: July 16, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Kawase, Kuniaki Ojima, Koshi Kimura
  • Publication number: 20190063686
    Abstract: A high pressure tank device includes a high pressure tank configured to supply/discharge a fluid through a supply/discharge channel, a first storage part, a leakage detection sensor provided in the first storage part for detecting leakage of the fluid, and a second storage part. The high pressure tank includes a resin liner, a reinforcement layer which covers an outer surface of the liner, and a cap having a supply/discharge hole. The first storage part can store a first fluid. The first fluid is at least one of the fluid that leaked from the supply/discharge channel and the fluid that leaked through the inside of the supply/discharge hole. The second storage part is provided independently from the first storage part, and can store a second fluid. The second fluid is the fluid that leaked from the outside of the supply/discharge hole.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 28, 2019
    Inventors: Naoki Ogiwara, Satoru Kawase
  • Publication number: 20180266632
    Abstract: A high pressure tank includes: a resin liner for containing a fluid; a reinforced layer covering an outer surface of the liner; a cap including a supply/discharge hole to supply and discharge the fluid to and from the liner; an isolation wall member; and a communication unit. The cap includes a cylindrical protrusion having the supply/discharge hole formed therein. An opening is formed in the reinforced layer to expose the protrusion. The isolation wall member encloses the protrusion and the opening, and forms a closed space. The communication unit communicates with the closed space.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Inventors: Naoki Ogiwara, Satoru Kawase
  • Publication number: 20180266627
    Abstract: A high pressure tank includes: a resin liner for containing a fluid; a reinforced layer covering an outer surface of the liner; a cap including a supply/discharge hole to supply and discharge the fluid to and from the liner; a barrier layer; and an isolation wall member. The cap includes a cylindrical protrusion having the supply/discharge hole. The barrier layer covers an outer surface of the reinforced layer to block all or at least part of the fluid, and includes an opening to expose the protrusion. The isolation wall member forms a closed space accommodating the protrusion and the opening of the barrier layer.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Inventors: Naoki Ogiwara, Satoru Kawase
  • Publication number: 20180034078
    Abstract: A method of controlling a fuel cell system includes supplying a fuel gas from a fuel-gas storage container to a fuel cell via a drive valve provided in a fuel-gas path. A first pressure is detected in the fuel-gas path between a first decompression mechanism and a second decompression mechanism. A second pressure is detected in the fuel-gas path between the second decompression mechanism and the drive valve. An on-off valve is opened. The on-off valve is provided in a bypass path. The first pressure and the second pressure are compared after the on-off valve has been opened. The fuel cell system is controlled to decrease electric power generated by the fuel cell or to stop generating electric power in the fuel cell when the first pressure is not substantially equal to the second pressure.
    Type: Application
    Filed: June 30, 2017
    Publication date: February 1, 2018
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Satoru KAWASE, Kuniaki OJIMA, Koshi KIMURA
  • Publication number: 20170352903
    Abstract: A fuel cell system includes first and second tanks, first and second pipes, a pipe, a first valve, a second valve, a pressure sensor, and circuitry. The first pipe is connected to the first tank. The second pipe is connected to the second tank. The pipe is connected to a fuel cell and connected to the first and second pipes to supply a reaction gas from the first and second tanks to the fuel cell. The first valve is provided at the first pipe. The second valve is provided at the second pipe. The pressure sensor is provided at the pipe between the joint point and the fuel cell. The circuitry determines whether a failure occurs in at least one of the first and second valves based on a change in the pressure detected by the pressure sensor while the first and second valves are controlled.
    Type: Application
    Filed: May 17, 2017
    Publication date: December 7, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yusai YOSHIMURA, Satoru KAWASE, Yuji MATSUMOTO
  • Publication number: 20170331130
    Abstract: A method for controlling a fuel cell vehicle including a fuel cell to generate electric power via an electrochemical reaction between fuel gas and oxidant gas, the method includes determining whether the fuel cell vehicle is in a fuel supply state in which the fuel gas is supplied from an outside of the fuel cell vehicle into a fuel storage chamber via a filling lid box of the fuel cell vehicle. It is determined that the fuel gas does not leak, even if a fuel gas detector provided in the filling lid box detects the fuel gas when the fuel cell vehicle is in the fuel supply state.
    Type: Application
    Filed: April 20, 2017
    Publication date: November 16, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Satoru KAWASE, Koichi TAKAKU, Takatsugu KOYAMA
  • Patent number: 9296311
    Abstract: A fuel-cell vehicle includes a storage container, a fuel cell system, a state detector, a transmitter, a request detector, and a controller. The controller includes a signal generator and a communication starting device. The signal generator is configured to determine a transmission value indicating a physical state detected by the state detector so as to generate a data signal in accordance with the transmission value. The signal generator is configured to set the transmission value to a reference value preset based on the physical state detected by the state detector if the fuel cell system is not running and configured to set the transmission value to a value obtained by correcting the reference value so that an amount of the fuel gas to be monitored by an external filling device increases if the fuel cell system is running.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: March 29, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Kawase, Kiyoshi Handa, Kazuyuki Kadowaki
  • Publication number: 20150352974
    Abstract: A fuel-cell vehicle includes a storage container, a fuel cell system, a state detector, a transmitter, a request detector, and a controller. The controller includes a signal generator and a communication starting device. The signal generator is configured to determine a transmission value indicating a physical state detected by the state detector so as to generate a data signal in accordance with the transmission value. The signal generator is configured to set the transmission value to a reference value preset based on the physical state detected by the state detector if the fuel cell system is not running and configured to set the transmission value to a value obtained by correcting the reference value so that an amount of the fuel gas to be monitored by an external filling device increases if the fuel cell system is running.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 10, 2015
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Satoru KAWASE, Kiyoshi HANDA, Kazuyuki KADOWAKI
  • Patent number: 7388365
    Abstract: Method and system for obtaining a potential distribution image of a specimen using two probes having two probes contacted with a patterned surface of the specimen, a scanning unit for scanning a beam of electrons or ions over the specimen, a potential detection unit for detecting the electric potential at an arbitrary position on the specimen using the probes, and an acquisition unit for obtaining a potential distribution image of the specimen while synchronizing the output from the potential detection unit with the scanning of the beam.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: June 17, 2008
    Assignee: Jeol Ltd.
    Inventors: Takeshi Nokuo, Satoru Kawase, Tadaharu Mouri
  • Publication number: 20060054813
    Abstract: Method and system for obtaining a potential distribution image of a specimen using two probes having two probes contacted with a patterned surface of the specimen, a scanning unit for scanning a beam of electrons or ions over the specimen, a potential detection unit for detecting the electric potential at an arbitrary position on the specimen using the probes, and an acquisition unit for obtaining a potential distribution image of the specimen while synchronizing the output from the potential detection unit with the scanning of the beam.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 16, 2006
    Applicant: JEOL Ltd.
    Inventors: Takeshi Nokuo, Satoru Kawase, Tadaharu Mouri