Patents by Inventor Atsushi WAKAMATSU

Atsushi WAKAMATSU 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: 20220316429
    Abstract: A control unit diagnoses a failure of a fuel storage unit that seals a fuel tank and a processing unit that processes fuel evaporative gas in the fuel tank. A first pressure detection unit of the fuel storage unit detects the pressure of the fuel tank. A second pressure detection unit of the fuel storage unit is disposed at a position different from the first pressure detection unit, and detects the pressure of the fuel tank. The control unit specifies a failure portion of the fuel storage unit and the processing unit based on a change in either one or both of a first pressure value detected by the first pressure detection unit and a second pressure value detected by the second pressure detection unit when the pressure of the fuel tank is changed.
    Type: Application
    Filed: July 29, 2020
    Publication date: October 6, 2022
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Kyosuke UEMATSU, Takuya OHSHIMA, Hideo MATSUNAGA, Atsushi WAKAMATSU, Takahiro TSUTSUI
  • Publication number: 20210015315
    Abstract: A toilet device is configured to be capable of performing toilet seat reverse face washing, in which a cleaning liquid is supplied onto a reverse face of a toilet seat and the reverse face is washed. When the toilet seat is placed in a non-closed state, the toilet device does not perform the toilet seat reverse face washing.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 21, 2021
    Applicant: LIXIL Corporation
    Inventors: Kazuki KOGA, Hiroaki WATANABE, Hirokazu SHIMASAKI, Tomoya SASAKI, Tsunaki ITOU, Atsushi WAKAMATSU
  • Patent number: 10526984
    Abstract: A fuel evaporative emission control device including an electronic control unit that, when fuel tank inner pressure exceeds a first predetermined pressure, performs tank purge of closing a bypass valve and opening a sealing valve, discharging fuel evaporative gas inside the fuel tank into an air intake path of an engine in an operated state through a purge pipe and a vapor pipe, and treating the fuel evaporative gas, where, when tank purge is performed, if a first predetermined period of time passes after closing of the bypass valve without the fuel tank inner pressure falling to or below the first predetermined pressure, the sealing valve is closed and tank purge is stopped.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: January 7, 2020
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Wakamatsu, Kenichi Kunii
  • Publication number: 20190330832
    Abstract: The purpose of the present invention is to provide a deodorizer in which spray, etc. can be prevented or inhibited from entering the interior. A private part washing device 3 functioning as a deodorizer device, provided with: a case 7 provided to the rear part of a toilet bowl 4 provided to a main toilet body 2, the case having an opening part 9 opening onto the toilet bowl 4; an air duct 24 having a blowout port 28 from which airflow is blown out, the blowout port 28 opening from the opening part 9 to the outside of the case 7; and a shutter 10 for opening/closing the opening part 9, the shutter 10 forming an air outlet 38 between the shutter 10 and the case 7 when the opening part 9 is closed. When the opening part 9 is closed by the shutter 10, airflow is guided in a first direction from the air outlet 38 into the toilet bowl 4, and when the opening part 9 is opened by the shutter 10, airflow is guided in a direction different from the first direction.
    Type: Application
    Filed: November 7, 2017
    Publication date: October 31, 2019
    Applicant: LIXIL Corporation
    Inventors: TingJian GONG, Toshihiko KOMATSU, Masashi KONNO, Motoki KAGAWA, Masato WAKABAYASHI, Tomoya SASAKI, YinTao LIU, Atsushi WAKAMATSU
  • Patent number: 9987923
    Abstract: A vehicle includes a fuel tank, a canister, a closing valve and a filler door. A control device for the vehicle includes a valve controller that performs depressurization control for decreasing a tank pressure by opening the closing valve, a door controller that issues a normal driving command to a drive unit that opens the filler door when the tank pressure becomes equal to or lower than a predetermined pressure by the depressurization control, a detector that detects an open/close state of the filler door and a determiner that determines whether or not detection by the detector can be performed. If the detection by the detector cannot be performed, the door controller issues, when the tank pressure is equal to or lower than the predetermined pressure, a forced driving command for causing the drive unit to generate output power higher than normal power preferentially to the normal driving command.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: June 5, 2018
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventor: Atsushi Wakamatsu
  • Publication number: 20180106203
    Abstract: A fuel evaporative emission control device including an electronic control unit that, when fuel tank inner pressure exceeds a first predetermined pressure, performs tank purge of closing a bypass valve and opening a sealing valve, discharging fuel evaporative gas inside the fuel tank into an air intake path of an engine in an operated state through a purge pipe and a vapor pipe, and treating the fuel evaporative gas, where, when tank purge is performed, if a first predetermined period of time passes after closing of the bypass valve without the fuel tank inner pressure falling to or below the first predetermined pressure, the sealing valve is closed and tank purge is stopped.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 19, 2018
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Atsushi WAKAMATSU, Kenichi KUNII
  • Publication number: 20170174074
    Abstract: A vehicle includes a fuel tank, a canister, a closing valve and a filler door. A control device for the vehicle includes a valve controller that performs depressurization control for decreasing a tank pressure by opening the closing valve, a door controller that issues a normal driving command to a drive unit that opens the filler door when the tank pressure becomes equal to or lower than a predetermined pressure by the depressurization control, a detector that detects an open/close state of the filler door and a determiner that determines whether or not detection by the detector can be performed. If the detection by the detector cannot be performed, the door controller issues, when the tank pressure is equal to or lower than the predetermined pressure, a forced driving command for causing the drive unit to generate output power higher than normal power preferentially to the normal driving command.
    Type: Application
    Filed: December 5, 2016
    Publication date: June 22, 2017
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventor: Atsushi WAKAMATSU
  • Patent number: 9556827
    Abstract: A first pressure sensor capable of detecting pressure in a narrow pressure range with a high accuracy to detect internal pressure in the fuel tank is arranged in the fuel tank, and a second pressure sensor that is capable of detecting pressure in a wide pressure range with a low accuracy with respect to the first pressure sensor, and is capable of detecting internal pressure of the fuel tank, is arranged in vapor piping between the fuel tank and a tank blocking valve. When a filler lid switch is operated to release internal pressure of the fuel tank, the first pressure sensor detects internal pressure of the fuel tank so that an operation of the tank blocking valve is controlled on the basis of the detection result, and then a filler lid is opened when the internal pressure of the fuel tank becomes the atmospheric pressure.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: January 31, 2017
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Norifumi Iwaya, Atsushi Wakamatsu, Takayuki Sano
  • Patent number: 9527381
    Abstract: A fuel filler lid device is capable of protrusion and movement and has a door hook which locks a fuel filler lid in a closed state by being urged in an extending direction by a spring and unlocks the fuel filler lid by being contracted/operated by a door motor. A wall portion that regulates extension of the door hook at a first position in a state locked by the door hook at a closed position is provided on the fuel filler lid. If a sensor detects that the door hook is at the first position for a predetermined time, it is determined that the fuel filler lid is in the closed state, while the sensor detects that the door hook is at a second position protruding more than the first position for a predetermined time, it is determined that the fuel filler lid is in an open state.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 27, 2016
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Wakamatsu, Yutaka Fujiwara
  • Publication number: 20160369722
    Abstract: A fuel evaporative emission control device including an electronic control unit that, when fuel tank inner pressure exceeds a first predetermined pressure, performs tank purge of closing a bypass valve and opening a sealing valve, discharging fuel evaporative gas inside the fuel tank into an air intake path of an engine in an operated state through a purge pipe and a vapor pipe, and treating the fuel evaporative gas, where, when tank purge is performed, if a first predetermined period of time passes after closing of the bypass valve without the fuel tank inner pressure falling to or below the first predetermined pressure, the sealing valve is closed and tank purge is stopped.
    Type: Application
    Filed: June 21, 2016
    Publication date: December 22, 2016
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Atsushi WAKAMATSU, Kenichi KUNII
  • Patent number: 9441579
    Abstract: A first pressure sensor that detects pressure in a narrow pressure range with high accuracy is provided in a fuel tank, and a second pressure sensor that detects pressure in a wide pressure range with low accuracy with respect to the first pressure sensor is provided in vapor piping between the fuel tank and a tank blocking valve. Until internal pressure of the fuel tank becomes a second predetermined pressure, meter indication is performed on a display on the basis of a second tank internal pressure P2 calculated by the second pressure sensor and an atmospheric pressure sensor, and when internal pressure of the fuel tank becomes less than the second predetermined pressure, the meter indication is performed on the display on the basis of a first tank internal pressure P1 obtained by the first pressure sensor until internal pressure of the fuel tank becomes a fifth predetermined pressure.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: September 13, 2016
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Norifumi Iwaya, Atsushi Wakamatsu, Takayuki Sano
  • Publication number: 20150183316
    Abstract: In a fuel filler lid device provided on a vehicle body, capable of protrusion and movement and having a door hook which locks a fuel filler lid in a closed state by being urged in an extending direction by a hook return spring and unlocks the fuel filler lid by being contracted/operated by a door motor, a left-and-right wall portion for regulating extension of the door hook at a first position in a state locked by the door hook at a closed position is provided on the fuel filler lid, and if it is detected by a door opening/closing sensor for detecting a protrusion position of the door hook that the door hook is at the first position for a predetermined time, it is determined that the fuel filler lid is in the closed state, while if it is detected that the door hook is at a second position protruding more than the first position for a predetermined time, it is determined that the fuel filler lid is in an open state.
    Type: Application
    Filed: December 18, 2014
    Publication date: July 2, 2015
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Atsushi WAKAMATSU, Yutaka FUJIWARA
  • Publication number: 20150059890
    Abstract: A first pressure sensor that detects pressure in a narrow pressure range with a high accuracy is provided in a fuel tank, and a second pressure sensor that detects pressure in a wide pressure range with a low accuracy with respect to the first pressure sensor is provided in vapor piping between the fuel tank and a tank blocking valve. Until internal pressure of the fuel tank becomes a second predetermined pressure, meter indication is performed on a display on the basis of a second tank internal pressure P2 calculated by the second pressure sensor and an atmospheric pressure sensor, and when internal pressure of the fuel tank becomes less than the second predetermined pressure, the meter indication is performed on the display on the basis of a first tank internal pressure P1 obtained by the first pressure sensor until internal pressure of the fuel tank becomes a fifth predetermined pressure.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventors: Norifumi IWAYA, Atsushi WAKAMATSU, Takayuki SANO
  • Publication number: 20150059870
    Abstract: A first pressure sensor capable of detecting pressure in a narrow pressure range with a high accuracy to detect internal pressure in the fuel tank is arranged in the fuel tank, and a second pressure sensor that is capable of detecting pressure in a wide pressure range with a low accuracy with respect to the first pressure sensor, and is capable of detecting internal pressure of the fuel tank, is arranged in vapor piping between the fuel tank and a tank blocking valve. When a filler lid switch is operated to release internal pressure of the fuel tank, the first pressure sensor detects internal pressure of the fuel tank so that an operation of the tank blocking valve is controlled on the basis of the detection result, and then a filler lid is opened when the internal pressure of the fuel tank becomes the atmospheric pressure.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Norifumi IWAYA, Atsushi WAKAMATSU, Takayuki SANO
  • Patent number: 8960163
    Abstract: A fuel evaporation gas discharge suppressing device of an internal combustion engine includes a gas storage tank for storing a fuel evaporation gas in a communication passage for causing an air intake passage and a fuel tank in an internal combustion engine of a vehicle to communicate with each other in the communication passage. Control unit controls canister opening/closing unit, fuel tank opening/closing unit and gas tank opening/closing unit based on an internal pressure of the fuel tank. The control unit opens the canister opening/closing unit and opens the fuel tank toward the communication passage, and then opens the gas storage tank toward the communication passage when reducing the internal pressure of the fuel tank.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: February 24, 2015
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Norifumi Iwaya, Takayuki Sano, Atsushi Wakamatsu, Hiroaki Kageyama
  • Publication number: 20140144411
    Abstract: A fuel evaporation gas discharge suppressing device of an internal combustion engine includes a gas storage tank for storing a fuel evaporation gas in a communication passage for causing an air intake passage and a fuel tank in an internal combustion engine of a vehicle to communicate with each other in the communication passage. Control unit controls canister opening/closing unit, fuel tank opening/closing unit and gas tank opening/closing unit based on an internal pressure of the fuel tank. The control unit opens the canister opening/closing unit and opens the fuel tank toward the communication passage, and then opens the gas storage tank toward the communication passage when reducing the internal pressure of the fuel tank.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 29, 2014
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Norifumi IWAYA, Takayuki SANO, Atsushi WAKAMATSU, Hiroaki KAGEYAMA