Patents by Inventor Takuya Hiraiwa

Takuya Hiraiwa 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: 20220388620
    Abstract: An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied from a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes a tank compartment installed therein with a fuel tank that stores the fuel. The tank compartment is provided below a deck of the hull and provided separately from other compartments.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Yukihiko KIMURA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA
  • Publication number: 20220393196
    Abstract: A fuel cell ship includes a storage battery compartment installed with a storage battery that supplies, to a propulsion device, electric power different from electric power by a fuel cell. The storage battery compartment is provided between a deck and a ship bottom portion of a hull.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Yukihiko KIMURA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA, Shoto MORISHITA, Takahiro KOYAMA
  • Publication number: 20220393208
    Abstract: A fuel cell ship includes a propulsion device that generates propulsive force on a hull by electric power, an electric power supply unit that supplies the electric power to the propulsion device, and a degradation rate control unit that adjusts a degradation rate. The electric power supply unit includes a plurality of fuel cells that generate electric power by an electrochemical reaction of fuel and at least one storage battery.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Yasuyoshi YAMAGUCHI, Takehiro MARUYAMA, Takuya HIRAIWA, Manabu SHINAGAWA, Yukihiko KIMURA
  • Publication number: 20220393198
    Abstract: A fuel cell ship includes a fuel cell compartment in which a fuel cell is installed, a tank compartment in which a fuel tank is installed, a fuel supply pipe through which fuel is supplied from the fuel tank to the fuel cell, and a control unit. The fuel supply pipe includes at least two shutoff valves. Fuel gas detectors that detect a fuel gas being in a gaseous state of the fuel are each installed in the compartments. If at least one of the fuel gas detectors detects that a concentration of the fuel gas is equal to or greater than a predetermined standard value, the control unit controls to close a shutoff valve in a compartment out of the tank compartment and the fuel cell compartment, where the fuel gas detector having detected the concentration equal to or greater than the standard value is installed.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA, Yukihiko KIMURA
  • Publication number: 20220388618
    Abstract: An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied from a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes a plurality of compartments including an emission source of the fuel, in which the plurality of compartments include a tank compartment installed therein with a fuel tank that stores the fuel and a fuel cell compartment installed therein with the fuel cell. The tank compartment and the fuel cell compartment are each sealed except for a ventilation port through which the inside of the compartment is ventilated.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings, Co., Ltd.
    Inventors: Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA, Yukihiko KIMURA
  • Publication number: 20220393202
    Abstract: An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied from a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes a compartment including an emission source of the fuel and a first detector arranged in the compartment to detect the fuel. If the first detector detects that a concentration of the fuel in the compartment is equal to or greater than a first threshold value, a power supply to a non-explosion-proof device in the compartment is stopped.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Takuya HIRAIWA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Manabu SHINAGAWA, Yukihiko KIMURA
  • Publication number: 20220388405
    Abstract: An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied by a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes at least one compartment including an emission source of the fuel, and a vent pipe through which the fuel in the compartment is released to outside of the hull. A release port of the vent pipe is located at a position higher than a cabin or a bridge provided on the hull.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Manabu SHINAGAWA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Yukihiko KIMURA
  • Publication number: 20220393201
    Abstract: A fuel cell ship includes a fuel cell that generates electric power by an electrochemical reaction of fuel, a propulsion device that generates propulsive force on a hull by electric power supplied from the fuel cell, a fuel supply pipe through which the fuel is supplied from a fuel tank housing the fuel to the fuel cell, a duct compartment that houses a part of the fuel supply pipe, a vent pipe that communicates with the duct compartment, and a fuel filling port that serves as an inlet for filling the fuel tank with the fuel. The fuel filling port is provided in the duct compartment.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co.,Ltd.
    Inventors: Manabu SHINAGAWA, Takehiro Maruyama, Yasuyoshi Yamaguchi, Takuya Hiraiwa, Yukihiko Kimura
  • Publication number: 20220393195
    Abstract: A fuel cell ship includes a cooling system that cools a fuel cell. The cooling system includes a cooling medium tank that accommodates a cooling medium, a cooling medium circulation pipe that circulates the cooling medium between the fuel cell and the cooling medium tank, a cooling tank internal gas detector installed in the cooling medium tank, a cooling tank internal gas discharge pipe connected to the cooling medium tank, and a cooling tank internal gas discharge valve installed in the cooling tank internal gas discharge pipe. The fuel cell ship includes a control unit that controls opening and closing of the cooling tank internal gas discharge valve. The control unit opens the cooling tank internal gas discharge valve when the cooling tank internal gas detector detects that the concentration of the fuel gas in the cooling medium tank is equal to or greater than a specified value determined in advance.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Takuya HIRAIWA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Manabu SHINAGAWA, Yukihiko KIMURA
  • Patent number: 11260823
    Abstract: An airbag for a passenger seat is folded and stored in a storage so as to be deployed towards the passenger seat in such a manner as to enlarge towards the left and right when exiting the storage. The airbag includes a bag body that includes a mount-side portion to be mounted on the storage, and a cover panel that is made of a flexible sheet-shaped material and covers an outer circumference of the mount-side portion of the bag body. The cover panel is configured to cover an edge of a peripheral member of the storage at least in left and right sides of the storage at airbag deployment. The cover panel is joined to the bag body in such a manner that its edge portion is capable of slipping relative to the bag body at least in the left and right portions.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 1, 2022
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Takuya Hiraiwa, Shinichi Ishida, Keita Suzuki, Motoyuki Tanaka
  • Patent number: 11214228
    Abstract: An airbag device includes an airbag formed with a discharge portion. The discharge portion includes: an opening portion; a tack portion around the opening portion; and a regulating belt portion disposed on a peripheral edge of the opening portion to regulate opening and closing of the opening portion. When the inflation of the airbag is completed, the tack portion is maintained in a folded state by the regulating belt portion due to tension acting on the regulation belt portion, so that a closed state of the opening portion is capable of being maintained, and when the tension does not act on the regulating belt portion, the folded state is released and the opening portion is brought into an open state.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: January 4, 2022
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Keita Suzuki, Takuya Hiraiwa, Shinichi Ishida
  • Patent number: 11198409
    Abstract: A passenger seat airbag device includes an airbag including a front collision restraining surface, and an oblique collision restraining portion including a protruding portion in which a surface is set as an oblique collision restraining surface, and a restraining recess portion whose facing surfaces are able to restrain the head of the occupant. The rear wall main portion has the front collision restraining surface. The rear wall end edge portion has the oblique collision restraining surface. The upper edge of the rear wall end edge portion is coupled to a rear edge of the upper wall portion. The lower edge of the rear wall end edge portion is coupled to a rear edge of the lower wall portion. An entire edge of the separation edge of the rear wall end edge portion is coupled to a rear edge of the rear edge side portion.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: December 14, 2021
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Takuya Hiraiwa, Shinichi Ishida, Koji Hosoe, Masashi Baba, Ryo Kumazaki, Hiromi Kondo
  • Publication number: 20210300283
    Abstract: The front passenger seat airbag includes a main body inflation portion having a front end side attached to the storage portion when inflation is completed, and a protruding inflation portion having a portion protruding rearward from at least one end portion side in a right-left direction on a rear surface side of the main body inflation portion when inflation is completed, the protruding inflation portion protecting a head of the occupant moving obliquely forward during an oblique collision or an offset collision of a vehicle. A pinching portion is formed in a position continuous with a rear end side of the protruding inflation portion, and regulates an outer shape of the protruding inflation portion when inflation is completed, and the pinching portion is formed by joining to-be-joined portions separated from each other in a state in which a bag panel constituting the outer peripheral wall is flatly unfolded.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 30, 2021
    Inventors: Takuya HIRAIWA, Shinichi ISHIDA, Keita SUZUKI
  • Patent number: 11124149
    Abstract: An airbag having an exhaust hole and an opening/closing control device configured to control opening and closing of the exhaust hole are provided. The airbag includes a bag body, and a discharge portion having the exhaust hole, the discharge portion is configured to maintain a blocked state of the exhaust hole by being drawn into the bag body at the time of inflation of the bag body in a state where connection between a connection member and the opening/closing control device is maintained, and to be inflated by protruding from the bag body at the time of inflation of the bag body in a state where the connection between the connection member and the opening/closing control device is released to open the exhaust hole. A dummy inflation portion inflated to partially protrude from the bag body is formed at a position approximately symmetrical to the discharge portion.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: September 21, 2021
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Takuya Hiraiwa, Shinichi Ishida, Keita Suzuki
  • Patent number: 11007970
    Abstract: An airbag device includes an airbag, a connecting member extending from the airbag, and an actuator mounted on an airbag housing for controlling an inflation manner of the airbag. The actuator includes an actuator body that includes an operating pin which penetrates the connecting member, a mounting plate that holds the actuator body and is secured to the airbag housing, and a supporting plate that is disposed in a vicinity of a leading end portion of the operating pin. The supporting plate includes a supporting hole for receiving the operating pin, and a flange that is formed in a part of a periphery of the supporting hole toward which the connecting member is released. The flange extends along an axial direction of the operating pin towards the leading end of the operating pin for supporting the leading end portion of the operating pin with its surface facing the operating pin.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 18, 2021
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Takuya Hiraiwa, Shinichi Ishida, Keita Suzuki
  • Patent number: 10953839
    Abstract: An airbag device includes: an airbag having an exhaust hole capable of discharging a part of the inflation gas introduced therein upon opening; and an opening/closing control device capable of controlling opening/closing of the exhaust hole. The airbag has: a flexible bag main body; a discharge part having the exhaust hole; and a coupling member. Peripheral edges of a pair of peripheral wall constituting parts are joined to form the bag main body and the discharge part. Discharge part forming portions, which constitute the discharge part, partially protrude in the peripheral wall constituting parts, respectively. An opening, which constitutes the exhaust hole, is formed in a region, which is closer to a tip end-side of the discharge part than seal parts crimped to each other when the discharge part is pulled into the bag main body.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 23, 2021
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Motoyuki Tanaka, Takuya Hiraiwa
  • Publication number: 20210031720
    Abstract: An airbag device includes an airbag formed with a discharge portion. The discharge portion includes: an opening portion; a tack portion around the opening portion; and a regulating belt portion disposed on a peripheral edge of the opening portion to regulate opening and closing of the opening portion. When the inflation of the airbag is completed, the tack portion is maintained in a folded state by the regulating belt portion due to tension acting on the regulation belt portion, so that a closed state of the opening portion is capable of being maintained, and when the tension does not act on the regulating belt portion, the folded state is released and the opening portion is brought into an open state.
    Type: Application
    Filed: July 9, 2020
    Publication date: February 4, 2021
    Inventors: Keita SUZUKI, Takuya HIRAIWA, Shinichi ISHIDA
  • Publication number: 20210031716
    Abstract: A passenger seat airbag device includes an airbag including a front collision restraining surface, and an oblique collision restraining portion including a protruding portion in which a surface is set as an oblique collision restraining surface, and a restraining recess portion whose facing surfaces are able to restrain the head of the occupant. The rear wall main portion has the front collision restraining surface. The rear wall end edge portion has the oblique collision restraining surface. The upper edge of the rear wall end edge portion is coupled to a rear edge of the upper wall portion. The lower edge of the rear wall end edge portion is coupled to a rear edge of the lower wall portion. An entire edge of the separation edge of the rear wall end edge portion is coupled to a rear edge of the rear edge side portion.
    Type: Application
    Filed: July 8, 2020
    Publication date: February 4, 2021
    Inventors: Takuya HIRAIWA, Shinichi ISHIDA, Koji HOSOE, Masashi BABA, Ryo KUMAZAKI, Hiromi KONDO
  • Publication number: 20200094768
    Abstract: An airbag having an exhaust hole and an opening/closing control device configured to control opening and closing of the exhaust hole are provided. The airbag includes a bag body, and a discharge portion having the exhaust hole, the discharge portion is configured to maintain a blocked state of the exhaust hole by being drawn into the bag body at the time of inflation of the bag body in a state where connection between a connection member and the opening/closing control device is maintained, and to be inflated by protruding from the bag body at the time of inflation of the bag body in a state where the connection between the connection member and the opening/closing control device is released to open the exhaust hole. A dummy inflation portion inflated to partially protrude from the bag body is formed at a position approximately symmetrical to the discharge portion.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 26, 2020
    Inventors: Takuya HIRAIWA, Shinichi ISHIDA, Keita SUZUKI
  • Publication number: 20200079313
    Abstract: An airbag for a passenger seat is folded and stored in a storage so as to be deployed towards the passenger seat in such a manner as to enlarge towards the left and right when exiting the storage. The airbag includes a bag body that includes a mount-side portion to be mounted on the storage, and a cover panel that is made of a flexible sheet-shaped material and covers an outer circumference of the mount-side portion of the bag body. The cover panel is configured to cover an edge of a peripheral member of the storage at least in left and right sides of the storage at airbag deployment. The cover panel is joined to the bag body in such a manner that its edge portion is capable of slipping relative to the bag body at least in the left and right portions.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 12, 2020
    Inventors: Takuya HIRAIWA, Shinichi ISHIDA, Keita SUZUKI, Motoyuki TANAKA