Patents by Inventor Hiroyuki Ozawa
Hiroyuki Ozawa 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: 20240282994Abstract: A membrane electrode assembly includes: a polymer electrolyte membrane; a pair of electrode catalyst layers disposed with the polymer electrolyte membrane therebetween while being in contact with a surface of the polymer electrolyte membrane; and a gas diffusion layer laminated on each of the pair of electrode catalyst layers. The gas diffusion layer includes a microporous layer in contact with the electrode catalyst layer and a diffusion substrate layer made of a fiber substrate. An average fiber diameter of a fiber material contained in the diffusion substrate layer is 10 times or more and 150 times of less of an average fiber diameter of the fibrous substance contained in the electrode catalyst layer.Type: ApplicationFiled: April 17, 2024Publication date: August 22, 2024Applicant: TOPPAN HOLDINGS INC.Inventors: Hiroyuki MORIOKA, Madoka Ozawa
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Crystalline silicon carbide fiber and method for manufacturing same, and ceramic composite substrate
Patent number: 12060302Abstract: A crystalline silicon carbide fiber containing silicon carbide and boron nitride, the crystalline silicon carbide fiber having a content of Si of 64% to 72% by weight, a content of C of 28% to 35% by weight, and a content of B of 0.1% to 3.0% by weight, and including, at a surface portion, a composition gradient layer in which a content of silicon carbide increases while a content of boron nitride decreases toward a depth direction.Type: GrantFiled: August 6, 2019Date of Patent: August 13, 2024Assignee: UBE CORPORATIONInventors: Yuusuke Tominaga, Hiroyuki Yamaoka, Kouichirou Suyama, Hideki Ozawa, Mao Sumino -
Patent number: 12046779Abstract: A fuel cell power generation system is provided with at least one fuel cell module each of which includes a fuel cell having a fuel-side electrode, an electrolyte, and an oxygen-side electrode; at least one fuel supply line for supplying a fuel gas to the fuel-side electrode included in the at least one fuel cell module; at least one oxidizing gas supply line for supplying an oxidizing gas to the oxygen-side electrode included in the at least one fuel cell module; and a most downstream exhaust fuel gas line through which an exhaust fuel gas discharged from a most downstream module that is disposed most downstream in a flow of the fuel gas among the at least one fuel cell module flows.Type: GrantFiled: January 27, 2021Date of Patent: July 23, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Norihisa Matake, Yasushi Iwai, Hiroyuki Ozawa, Yoshiki Kato, Nagao Hisatome
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Patent number: 12027714Abstract: A battery protection apparatus fixed to a vehicle body and provided on a side surface of a battery pack, includes a first portion configured to be inclined toward the battery pack side from a lower side to an upper side; an extension portion configured to extend from a lower end of the first portion in a direction being apart from the battery pack; and a second portion provided between the first portion and the battery pack, wherein the first portion and the second portion forms a hollow portion.Type: GrantFiled: November 18, 2021Date of Patent: July 2, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Wataru Ueno, Koji Shinohara, Hiroyuki Ozawa, Takahiro Koizumi, Shoshi Hidaka
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Patent number: 11962916Abstract: An imaging device includes a pixel array part having a plurality of pixels that perform photoelectric conversion, a converter that converts an analog pixel signal output from the pixel array part into digital pixel data, a first signal processing unit that performs first signal processing on the digital pixel data, a second signal processing unit that performs second signal processing that is at least partly shared by the first signal processing on the digital pixel data or data that has been subjected to at least a part of the first signal processing, a recognition processing unit that performs predetermined recognition processing on the basis of output data of the second signal processing unit, and an output interface unit that outputs at least one of output data of the first signal processing unit and the output data of the recognition processing unit.Type: GrantFiled: October 8, 2020Date of Patent: April 16, 2024Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Hitoshi Kai, Hiroyuki Ozawa, Satoshi Yamada
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Patent number: 11962052Abstract: A fuel cell module comprises: at least one cell stack including a plurality of single fuel cells supplied with a fuel gas and an oxidizing gas to generate power; a sealable housing accommodating the at least one cell stack and forming a power generation chamber inside the housing; a pressure vessel accommodating the housing; and an oxidizing gas supply pipe for supplying the oxidizing gas to the cell stack. At least one pressure equalizing opening is formed in the housing to allow communication between inside and outside of the housing. The at least one pressure equalizing opening includes only one pressure equalizing opening, or a plurality of pressure equalizing openings in which a distance between a pressure equalizing opening in the highest position and a pressure equalizing opening in the lowest position is within 0.1H, where H is a height of the housing.Type: GrantFiled: February 14, 2020Date of Patent: April 16, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Daigo Kobayashi, Hiroyuki Ozawa, Masahiro Mihara, Ryutaro Mori, Takeshi Matsuo, Norihisa Matake
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Patent number: 11936078Abstract: The purpose of the present invention is to provide fuel cell system capable of stable start-up and method for starting the fuel cell system. Fuel cell system includes SOFC, a turbocharger, oxidizing gas supply line, a control valve, oxidizing gas blow line, start-up air line for supplying the start-up air to the oxidizing gas supply line with a blower, and a control unit that, in state in which the control valve is closed and the blow valve is opened to supply the start-up air to the oxidizing gas supply line with the blower when the turbocharger is started, decreases the opening of the blow valve and, after the timing at which the opening of the blow valve starts to decrease, increases the opening of the control valve and then stops the supply of the starting air.Type: GrantFiled: January 27, 2021Date of Patent: March 19, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroyuki Ozawa, Yasushi Iwai, Kimi Kodo, Kenta Araki
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Publication number: 20240080546Abstract: Signal processing is performed using a built-in memory. An imaging apparatus includes: a pixel array unit that includes a plurality of pixels performing photoelectric conversion; a converter that converts an analog pixel signal output from the pixel array unit into digital image data; an image processing unit that performs image processing on the digital image data; and a storage unit that includes a plurality of regions for which a power distribution state is able to be selectively designated, and stores at least the digital image data output by the image processing unit.Type: ApplicationFiled: October 8, 2020Publication date: March 7, 2024Inventors: SATOSHI YAMADA, HIROYUKI OZAWA, HITOSHI KAI
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Patent number: 11876256Abstract: The purpose of the present invention is to provide: fuel cell system that can further stabilize an operation of the system; and control method thereof. Fuel cell system comprises: fuel cell; a turbocharger; oxidizing gas supply line that supplies, to cathode, oxidizing gas compressed by a compressor; a heat exchanger that heats the oxidizing gas of the oxidizing gas supply line by means of exhaust gas discharged from a turbine, and flows the exhaust gas to combustion exhaust gas line; bypass lines each having one end connected to the upstream side of the heat exchanger in the oxidizing gas supply line and bypassing the oxidizing gas; flow rate regulating valves provided in the bypass lines; and a control unit that controls the flow rate regulating valves on the basis of the ambient air temperature, and controls the bypass flow rate of the oxidizing gas.Type: GrantFiled: January 27, 2021Date of Patent: January 16, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroyuki Ozawa, Yasushi Iwai, Kimi Kodo, Kenta Araki
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Patent number: 11837145Abstract: Provided is a display apparatus that superimposes an image on an observation target, and the display apparatus includes a display unit and a display controller. The display unit displays an object image. The display controller adjusts a display position of the object image in a display region of the display unit in a horizontal direction on a pixel line basis.Type: GrantFiled: October 18, 2019Date of Patent: December 5, 2023Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Takayuki Iyama, Hiroyuki Ozawa
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Patent number: 11752854Abstract: A battery protection apparatus provided under a side sill of a vehicle and provided at least in a side surface of a battery pack under the vehicle, includes a protection apparatus main body, wherein a protrusion portion extending downwardly is formed in the side sill of the vehicle, the protrusion portion is positioned between the protection apparatus main body and the battery pack, and in a vertical direction, the highest point of the protection apparatus main body is higher than the lowest point of the protrusion portion with respect to the horizontal plane.Type: GrantFiled: October 28, 2021Date of Patent: September 12, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroyuki Ozawa, Yusuke Okamoto, Shoshi Hidaka
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Publication number: 20230130879Abstract: A fuel cell power generation system includes: a fuel cell; at least one compressor disposed on an oxidant supply line for supplying an oxidizing gas to the fuel cell; a first motor configured to drive a first compressor among the at least one compressor; and at least one power converter disposed between the first motor and a power grid, and capable of adjusting a torque of the first motor.Type: ApplicationFiled: February 18, 2021Publication date: April 27, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yasushi Iwai, Norihisa Matake, Hiroyuki Ozawa, Yoshiki Kato, Nagao Hisatome
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Publication number: 20230048425Abstract: A fuel cell power generation system is provided with: at least one fuel cell module each of which includes a fuel cell having a fuel-side electrode, an electrolyte, and an oxygen-side electrode; at least one fuel supply line for supplying a fuel gas to the fuel-side electrode included in the at least one fuel cell module; at least one oxidizing gas supply line for supplying an oxidizing gas to the oxygen-side electrode included in the at least one fuel cell module; and a most downstream exhaust fuel gas line through which an exhaust fuel gas discharged from a most downstream module that is disposed most downstream in a flow of the fuel gas among the at least one fuel cell module flows. The most downstream exhaust fuel gas line is configured to supply the exhaust fuel gas to the oxygen-side electrode included in any of the fuel cell modules.Type: ApplicationFiled: January 27, 2021Publication date: February 16, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Norihisa Matake, Yasushi Iwai, Hiroyuki Ozawa, Yoshiki Kato, Nagao Hisatome
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Patent number: 11548362Abstract: A vehicle battery unit comprising: a plurality of battery modules; an electric connection box; a battery control device configured to control the plurality of battery modules, a signal line extending from the electric connection box; a voltage detection line extending from the plurality of battery modules; and a battery case which accommodates the plurality of battery modules, the electric connection box, the battery control device, the signal line, and the voltage detection line. The battery control device includes: a first connector to which the signal line is connected on the one side in the front-rear direction; and a second connector to which the voltage detection line is connected on the other side in the front-rear direction. The battery control device is disposed above the plurality of battery modules and further on the one side than a center portion of the plurality of battery modules in the front-rear direction.Type: GrantFiled: May 12, 2020Date of Patent: January 10, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Tetsuhisa Sakamoto, Hiroyuki Ozawa
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Publication number: 20230006221Abstract: A pressurized air supply system supplies, to a pressurization object device, flowing air that includes at least one of compressed air, which is generated by compressing air supplied from an air supply source, or discharged air from a turbocharger compressor forming a turbocharger. The compressor is controlled such that a saturated steam temperature of the flowing air supplied from the air supply source to the pressurization object device is lower than a temperature in the pressurization object device, at startup.Type: ApplicationFiled: December 18, 2020Publication date: January 5, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yasushi Iwai, Ryutaro Mori, Hiroyuki Ozawa, Yoshiki Kato
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Publication number: 20220416273Abstract: The purpose of the present invention is to provide fuel cell system capable of stable start-up and method for starting the fuel cell system. Fuel cell system includes SOFC, a turbocharger, oxidizing gas supply line, a control valve, oxidizing gas blow line, start-up air line for supplying the start-up air to the oxidizing gas supply line with a blower, and a control unit that, in state in which the control valve is closed and the blow valve is opened to supply the start-up air to the oxidizing gas supply line with the blower when the turbocharger is started, decreases the opening of the blow valve and, after the timing at which the opening of the blow valve starts to decrease, increases the opening of the control valve and then stops the supply of the starting air.Type: ApplicationFiled: January 27, 2021Publication date: December 29, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroyuki Ozawa, Yasushi Iwai, Kimi Kodo, Kenta Araki
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Publication number: 20220407096Abstract: The purpose of the present invention is to provide fuel cell system capable of stably executing differential pressure control and having a simplified configuration, and method for controlling the same. Fuel cell system equipped with fuel cell, a turbocharger, exhaust fuel gas line, exhaust oxidizing gas line, combustion gas supply line for supplying combustion gas discharged from a combustor to a turbine, oxidizing gas supply line for supplying oxidizing gas compressed by a compressor to cathode, a regulator valve provided to the exhaust fuel gas line, and a control unit for controlling the differential pressure between the pressure of the cathode of the fuel cell and the pressure of the anode thereof by controlling the regulator valve, wherein the exhaust oxidizing gas line is not provided with venting system for discharging exhaust oxidizing gas outside the system.Type: ApplicationFiled: January 27, 2021Publication date: December 22, 2022Inventors: Hiroyuki OZAWA, Yasushi IWAI, Kimi KODO, Kenta ARAKI
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Publication number: 20220385809Abstract: An imaging device includes a pixel array part having a plurality of pixels that perform photoelectric conversion, a converter that converts an analog pixel signal output from the pixel array part into digital pixel data, a first signal processing unit that performs first signal processing on the digital pixel data, a second signal processing unit that performs second signal processing that is at least partly shared by the first signal processing on the digital pixel data or data that has been subjected to at least a part of the first signal processing, a recognition processing unit that performs predetermined recognition processing on the basis of output data of the second signal processing unit, and an output interface unit that outputs at least one of output data of the first signal processing unit and the output data of the recognition processing unit.Type: ApplicationFiled: October 8, 2020Publication date: December 1, 2022Applicant: Sony Semiconductor Solutions CorporationInventors: Hitoshi KAI, Hiroyuki OZAWA, Satoshi YAMADA
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Publication number: 20220376275Abstract: The purpose of the present invention is to provide: fuel cell system that can further stabilize an operation of the system; and control method thereof. Fuel cell system comprises: fuel cell; a turbocharger; oxidizing gas supply line that supplies, to cathode, oxidizing gas compressed by a compressor; a heat exchanger that heats the oxidizing gas of the oxidizing gas supply line by means of exhaust gas discharged from a turbine, and flows the exhaust gas to combustion exhaust gas line; bypass lines each having one end connected to the upstream side of the heat exchanger in the oxidizing gas supply line and bypassing the oxidizing gas; flow rate regulating valves provided in the bypass lines; and a control unit that controls the flow rate regulating valves on the basis of the ambient air temperature, and controls the bypass flow rate of the oxidizing gas.Type: ApplicationFiled: January 27, 2021Publication date: November 24, 2022Inventors: Hiroyuki OZAWA, Yasushi IWAI, Kimi KODO, Kenta ARAKI
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Patent number: 11456678Abstract: In order to reduce noise current leaking out from a frame to which semiconductor devices constituting a three-level power conversion circuit are attached to the outside of a power conversion device, the frame to which the semiconductor devices constituting the three-level power conversion circuit with which the power conversion device is equipped are attached is configured to be electrically connected to a neutral point of the three-level power conversion circuit. The noise current leaking out from the frame is thereby drawn back to the neutral point of the three-level power conversion circuit to suppress the flowing out of the noise current to the outside of the power conversion device and reduce the noise current.Type: GrantFiled: October 1, 2019Date of Patent: September 27, 2022Assignee: Hitachi, Ltd.Inventors: Shoya Akazawa, Hiroyuki Ozawa