Patents by Inventor Manabu SHINAGAWA
Manabu SHINAGAWA 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).
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Publication number: 20250038226Abstract: An exemplary fuel cell system includes a housing including a first section in which a fuel cell module and a hydrogen flow passage are disposed and a second section which is adjacent to the first section and in which an auxiliary machine is disposed. The housing has a connection part between the hydrogen flow passage and an external hydrogen flow passage disposed outside the housing, on a wall different from a partition wall sectioning the first section and the second section among walls constituting the first section.Type: ApplicationFiled: February 12, 2024Publication date: January 30, 2025Applicant: Yanmar Holdings Co., Ltd.Inventors: Takehiro Maruyama, Shinichiro Matsui, Takuya Hiraiwa, Manabu Shinagawa, Fumiaki Yukizane, Naoki Teraguchi, Takahiro Kubo, Takunori Utani, Yusuke Marutani, Shinya Naeki
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Publication number: 20250015325Abstract: A fuel cell system includes a fuel cell module having a fuel cell stack, a fuel gas system that supplies a fuel gas to the fuel cell stack, and a ventilation flow generator. The fuel gas system includes a fuel gas leakage risk portion. The ventilation flow generator generates a ventilation flow directed to the fuel gas leakage risk portion.Type: ApplicationFiled: February 12, 2024Publication date: January 9, 2025Applicant: Yanmar Holdings Co., Ltd.Inventors: Takehiro Maruyama, Shinichiro Matsui, Takuya Hiraiwa, Manabu Shinagawa, Fumiaki Yukizane, Naoki Teraguchi, Takahiro Kubo, Yusuke Marutani
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Publication number: 20240304843Abstract: A fuel cell system includes: a fuel cell module having a fuel cell stack; a fuel gas system that supplies a fuel gas to the fuel cell stack; an upstream-side block valve and a downstream-side block valve that open and close the fuel gas system; a vent system that is provided to branch from the fuel gas system between the upstream-side block valve and the downstream-side block valve; and a bleed valve that opens and closes the vent system. When an operation of the fuel cell stack is to be stopped, pressure reduction control, in which the bleed valve is opened after the upstream-side block valve is closed, and then the downstream-side block valve is closed after a predetermined time has elapsed, is performed.Type: ApplicationFiled: February 12, 2024Publication date: September 12, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Takehiro Maruyama, Shinichiro Matsui, Takuya Hiraiwa, Manabu Shinagawa, Fumiaki Yukizane, Naoki Teraguchi, Takahiro Kubo, Yusuke Marutani
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Publication number: 20240304845Abstract: An exemplary fuel cell system includes a fuel cell module, an air intake unit that takes air into the fuel cell module, and a housing that houses the fuel cell module and the air intake unit. The housing includes a first outer surface wall on which a desalination device is disposed upstream of the air intake unit, and a second outer surface wall provided with an electric wire arrangement part in which an electric wire is arranged.Type: ApplicationFiled: February 12, 2024Publication date: September 12, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Takehiro Maruyama, Shinichiro Matsui, Takuya Hiraiwa, Manabu Shinagawa, Fumiaki Yukizane, Naoki Teraguchi, Takahiro Kubo, Takunori Utani, Yusuke Marutani, Shinya Naeki
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Publication number: 20220393198Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co., Ltd.Inventors: Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA, Yukihiko KIMURA
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Publication number: 20220393195Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co., Ltd.Inventors: Takuya HIRAIWA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Manabu SHINAGAWA, Yukihiko KIMURA
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Publication number: 20220388620Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co., Ltd.Inventors: Yukihiko KIMURA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA
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Publication number: 20220393201Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co.,Ltd.Inventors: Manabu SHINAGAWA, Takehiro Maruyama, Yasuyoshi Yamaguchi, Takuya Hiraiwa, Yukihiko Kimura
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Publication number: 20220388618Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings, Co., Ltd.Inventors: Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA, Yukihiko KIMURA
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Publication number: 20220393202Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co., Ltd.Inventors: Takuya HIRAIWA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Manabu SHINAGAWA, Yukihiko KIMURA
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Publication number: 20220393196Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co., Ltd.Inventors: Yukihiko KIMURA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Manabu SHINAGAWA, Shoto MORISHITA, Takahiro KOYAMA
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Publication number: 20220388405Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co., Ltd.Inventors: Manabu SHINAGAWA, Takehiro MARUYAMA, Yasuyoshi YAMAGUCHI, Takuya HIRAIWA, Yukihiko KIMURA
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Publication number: 20220393208Abstract: 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: ApplicationFiled: June 1, 2022Publication date: December 8, 2022Applicant: Yanmar Holdings Co., Ltd.Inventors: Yasuyoshi YAMAGUCHI, Takehiro MARUYAMA, Takuya HIRAIWA, Manabu SHINAGAWA, Yukihiko KIMURA