Patents by Inventor Keiko Yamazaki
Keiko Yamazaki 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: 20230317982Abstract: An information processing device includes an acquisition unit which acquires use history information indicating a use history of a vehicle for a plurality of items, a derivation unit which derives the output decrease amount for each of the items based on use history information and output decrease characteristic information, a factor-specific output decrease amount estimation unit which estimates the output decrease amount for each of output decrease factors based on the output decrease amount for each of the items and output decrease factor information, and a control unit which executes control to increase a flow rate of a pump when any one of output decrease amounts for each of the output decrease factors is equal to or larger than a threshold value, compared with when where all of the output decrease amounts for each of the output decrease factors are less than the threshold value.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Applicant: HONDA MOTOR CO., LTD.Inventors: Keiko YAMAZAKI, Ryu OKANO, Akane GOTO, Yuichi SUZUKI
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Publication number: 20230317995Abstract: An information processing device includes an acquisition unit which acquires use history information indicating a use history of a vehicle, a prediction unit which predicts an output decrease amount of a fuel cell in a vehicle based on the use history information acquired by the acquisition unit and output decrease characteristic information indicating an output decrease characteristic of the fuel cell according to the use history, and a control unit which executes predetermined control based on the output decrease amount predicted by the prediction unit. When the control unit determines that a rated output of the fuel cell is equal to or smaller than a threshold value based on the output decrease amount, the control unit executes adhering substance removal control in which nitrogen-enriched gas having a higher nitrogen concentration and a lower oxygen concentration than air is supplied to the fuel cell as cathode gas.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Applicant: HONDA MOTOR CO., LTD.Inventors: Keiko YAMAZAKI, Hiromichi YOSHIDA, Tomohito KOTAKE, Kiyohide HIBINO
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Publication number: 20230311712Abstract: An information processing device includes an acquisition unit which acquires use history information indicating a use history of a vehicle, a prediction unit which predicts an output decrease amount based on use history information acquired by the acquisition unit and output decrease characteristic information indicating an output decrease characteristic of a fuel cell in the vehicle according to the use history, and a control unit which executes predetermined processing based on the output decrease amount predicted by the prediction unit. The control unit executes processing of predicting a deterioration time at which a rated output of the fuel cell is equal to or smaller than a threshold value based on changes in the output decrease amount from start of use of the vehicle to present, and outputting information indicating the deterioration time.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Applicant: HONDA MOTOR CO., LTD.Inventors: Keiko YAMAZAKI, Shintaro TANAKA, Kazuyuki TAKAHASHI, Ryo KOBAYASHI, Masakuni YAMAMOTO
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Publication number: 20230311711Abstract: An information processing device includes an acquisition unit which acquires use history information indicating a use history of the vehicle for a plurality of items, a derivation unit which derives an output decrease amount for each of the items based on the use history information and output decrease characteristic information, a factor-specific output decrease amount estimation unit which estimates the output decrease amount for each output decrease factor based on the output decrease amount for each item and output decrease factor information, and a control unit. When an output decrease amount for a predetermined output decrease factor is equal to or larger than a threshold value, the control unit executes adhering substance removal control of supplying a nitrogen-enriched gas having a higher nitrogen concentration and a lower oxygen concentration than air to the fuel cell as a cathode gas.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Applicant: HONDA MOTOR CO., LTD.Inventors: Keiko YAMAZAKI, Atsushi KAMACHI, Tatsuro HARUKI
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Publication number: 20220267540Abstract: A fluororesin film contains a fluororesin. The fluororesin contains two fluororesin species having different composition ratios of polymerized units. The fluororesin film has on at least one surface thereof a ten-point average roughness of 0.100 to 1.200 ?m and an arithmetic average roughness of 0.010 to 0.050 ?m, and the fluororesin film has a breakdown strength of 400 V/?m or higher.Type: ApplicationFiled: May 2, 2022Publication date: August 25, 2022Applicant: Daikin Industries, Ltd.Inventors: Kouji Yokotani, Nobuyuki Komatsu, Takeshi Hazama, Mayuko Tatemichi, Akio Higaki, Tatsuya Higuchi, Keiko Yamazaki
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Patent number: 11352469Abstract: A fluororesin film containing a fluororesin. The fluororesin film has on at least one surface thereof a ten-point average roughness of 0.100 to 1.200 ?m and an arithmetic average roughness of 0.010 to 0.050 ?m. Further, the fluororesin film has a breakdown strength of 400 V/?m or higher.Type: GrantFiled: January 17, 2018Date of Patent: June 7, 2022Assignee: DAIKIN INDUSTRIES. LTD.Inventors: Kouji Yokotani, Nobuyuki Komatsu, Takeshi Hazama, Mayuko Tatemichi, Akio Higaki, Tatsuya Higuchi, Keiko Yamazaki
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Patent number: 10978224Abstract: Provided is a twisted wire including a plurality of covered wires twisted together, each covered wire including a conductor and an insulator covering the periphery of the conductor, wherein the twisted wire satisfies Inequality (1): y<A×x/(z/500)+B (wherein x: a pitch length (mm) of the twisted wire, y: a collapsing rate (%) of the insulator, z: an elastic modulus (MPa) of the insulator, A: Constant A=?1, and B: Constant B=11.5).Type: GrantFiled: April 19, 2019Date of Patent: April 13, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Keiko Yamazaki, Tadaharu Isaka, Masahiro Kondo
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Patent number: 10826092Abstract: A method for operating a fuel cell vehicle includes supplying electric power to a vehicle drive motor from at least one of a fuel cell and a battery. It is determined whether an electric potential of electric power output from the fuel cell is within a deterioration acceleration region in which the fuel cell is deteriorated due to a platinum oxidation-reduction reaction. The fuel cell is controlled in a deterioration suppressing mode when the electric potential is within the deterioration acceleration region in a state where the fuel cell and the battery supply electric power to the vehicle drive motor.Type: GrantFiled: July 19, 2017Date of Patent: November 3, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Masataka Furuyama, Keiko Yamazaki, Atsushi Kamachi
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Publication number: 20190382544Abstract: A fluororesin film containing a fluororesin. The fluororesin film has on at least one surface thereof a ten-point average roughness of 0.100 to 1.200 ?m and an arithmetic average roughness of 0.010 to 0.050 ?m. Further, the fluororesin film has a breakdown strength of 400 V/?m or higher.Type: ApplicationFiled: January 17, 2018Publication date: December 19, 2019Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kouji YOKOTANI, Nobuyuki KOMATSU, Takeshi HAZAMA, Mayuko TATEMICHI, Akio HIGAKI, Tatsuya HIGUCHI, Keiko YAMAZAKI
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Publication number: 20190333658Abstract: Provided is a twisted wire including a plurality of covered wires twisted together, each covered wire including a conductor and an insulator covering the periphery of the conductor, wherein the twisted wire satisfies Inequality (1): y<A×x/(z/500)+B (wherein x: a pitch length (mm) of the twisted wire, y: a collapsing rate (%) of the insulator, z: an elastic modulus (MPa) of the insulator, A: Constant A=?1, and B: Constant B=11.5).Type: ApplicationFiled: April 19, 2019Publication date: October 31, 2019Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Keiko Yamazaki, Tadaharu Isaka, Masahiro Kondo
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Patent number: 9905880Abstract: A fuel cell stack is comprised of a plurality of power generating units which are stacked along the horizontal direction. An oxidant gas inlet port and a fuel gas inlet port are provided in an upper portion of one of the power generating units, and an oxidant gas outlet port and a fuel gas outlet port are provided in the lower portion of the power generating unit. A refrigerant inlet port and a refrigerant outlet port are formed in each of the left and right portions of the power generating unit.Type: GrantFiled: March 29, 2017Date of Patent: February 27, 2018Assignee: Honda Motor Co., Ltd.Inventors: Masahiro Mohri, Yasunori Kotani, Masaru Oda, Yasuhiro Watanabe, Akihiro Matsui, Keiko Yamazaki, Chikara Iwasawa, Hideo Okamoto, Masahiro Ise, Hiroaki Ohta
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Publication number: 20180026283Abstract: A method for operating a fuel cell vehicle includes supplying electric power to a vehicle drive motor from at least one of a fuel cell and a battery. It is determined whether an electric potential of electric power output from the fuel cell is within a deterioration acceleration region in which the fuel cell is deteriorated due to a platinum oxidation-reduction reaction. The fuel cell is controlled in a deterioration suppressing mode when the electric potential is within the deterioration acceleration region in a state where the fuel cell and the battery supply electric power to the vehicle drive motor.Type: ApplicationFiled: July 19, 2017Publication date: January 25, 2018Applicant: HONDA MOTOR CO., LTD.Inventors: Masataka FURUYAMA, Keiko YAMAZAKI, Atsushi KAMACHI
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Publication number: 20170207478Abstract: A fuel cell stack is comprised of a plurality of power generating units which are stacked along the horizontal direction. An oxidant gas inlet port and a fuel gas inlet port are provided in an upper portion of one of the power generating units, and an oxidant gas outlet port and a fuel gas outlet port are provided in the lower portion of the power generating unit. A refrigerant inlet port and a refrigerant outlet port are formed in each of the left and right portions of the power generating unit.Type: ApplicationFiled: March 29, 2017Publication date: July 20, 2017Inventors: Masahiro MOHRI, Yasunori KOTANI, Masaru ODA, Yasuhiro WATANABE, Akihiro MATSUI, Keiko YAMAZAKI, Chikara IWASAWA, Hideo OKAMOTO, Masahiro ISE, Hiroaki OHTA
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Patent number: 9640818Abstract: A method of operating a fuel cell includes the steps of detecting hydrogen peroxide concentration during power generation by a hydrogen peroxide concentration sensor provided directly on a membrane electrode assembly and determining an operating condition of the fuel cell based on the detected hydrogen peroxide concentration.Type: GrantFiled: October 9, 2012Date of Patent: May 2, 2017Assignee: Honda Motor Co., Ltd.Inventors: Masataka Furuyama, Keiko Yamazaki, Ryo Jinba, Hiromichi Yoshida
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Patent number: 9203102Abstract: A membrane electrode assembly of a fuel cell includes a solid polymer electrolyte membrane, a cathode, and an anode. The surface size of a cathode side electrode catalyst layer of the cathode is smaller than the surface size of an anode side electrode catalyst layer of the anode. An inner end of a gas impermeable film provided around the anode side electrode catalyst layer and an outer end of a cathode side electrode catalyst layer are overlapped with each other on both sides of the solid polymer electrolyte membrane.Type: GrantFiled: July 8, 2013Date of Patent: December 1, 2015Assignee: Honda Motor Co., Ltd.Inventors: Keiko Yamazaki, Masataka Furuyama, Takashi Kato, Ryo Jinba, Hideaki Sumi, Masataka Shibuya
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Publication number: 20140017588Abstract: A membrane electrode assembly of a fuel cell includes a solid polymer electrolyte membrane, a cathode, and an anode. The surface size of a cathode side electrode catalyst layer of the cathode is smaller than the surface size of an anode side electrode catalyst layer of the anode. An inner end of a gas impermeable film provided around the anode side electrode catalyst layer and an outer end of a cathode side electrode catalyst layer are overlapped with each other on both sides of the solid polymer electrolyte membrane.Type: ApplicationFiled: July 8, 2013Publication date: January 16, 2014Inventors: Keiko YAMAZAKI, Masataka FURUYAMA, Takashi KATO, Ryo JINBA, Hideaki SUMI, Masataka SHIBUYA
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Publication number: 20130078543Abstract: A fuel cell stack is provided with a pair of refrigerant inlet ports and a pair of refrigerant outlet ports. The refrigerant inlet ports are disposed in the vicinity of an oxidant gas inlet port and a fuel gas inlet port in a manner such that one of the refrigerant inlet ports is disposed on the side of the oxidant gas inlet port and the other refrigerant inlet port is disposed on the side of the fuel gas inlet port. The refrigerant outlet ports are disposed in the vicinity of an oxidant gas outlet port and a fuel gas outlet port in a manner such that one of the refrigerant outlet ports is disposed on the side of the oxidant gas outlet port and the other refrigerant outlet port is disposed on the side of the fuel gas outlet port.Type: ApplicationFiled: May 13, 2011Publication date: March 28, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Hiroto Chiba, Chikara Iwasawa, Masahiro Mohri, Osamu Ohgami, Junji Uehara, Keiko Yamazaki
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Patent number: 8370760Abstract: Necessary display count information about a count that predetermined content data should be displayed in a predetermined display device in a displayable period is acquired, display result count information about the display result count that the predetermined content data is displayed between a start of the displayable period and a present time is acquired, the display estimated count that the predetermined content data should be displayed in any period of the displayable period from the present time is decided based on the displayable period, the necessary display count information, and the display result count information, display time zone information about time zones in which the predetermined content data can be displayed in the predetermined display device is acquired, and a display start time at which the content data is displayed in the predetermined display device is decided based on the display estimated count and the display time zone information.Type: GrantFiled: September 28, 2009Date of Patent: February 5, 2013Assignee: Sony CorporationInventor: Keiko Yamazaki
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Publication number: 20110274999Abstract: A fuel cell stack is comprised of a plurality of power generating units which are stacked along the horizontal direction. A corrugated passage groove having a shape corresponding to the shape of the underside surface of a corrugated passage groove of a first fuel gas passage is formed in a surface of a first metal separator. A corrugated passage groove having a shape corresponding to the shape of the underside surface of a corrugated passage groove of a second oxidant gas passage is formed in a surface of a third metal separator. The corrugated passage grooves overlap one another to define a refrigerant passage. An oxidant gas inlet port and a fuel gas inlet port are provided in the upper portion of the power generating unit, and an oxidant gas outlet port and a fuel gas outlet port are provided in the lower portion of the power generating unit. A refrigerant inlet port and a refrigerant outlet port are formed in each of the left and right portions of the power generating unit.Type: ApplicationFiled: January 14, 2010Publication date: November 10, 2011Applicant: Honda Motor Co., Ltd.Inventors: Masahiro Mohri, Yasunori Kotani, Masaru Oda, Yasuhiro Watanabe, Akihiro Matsui, Keiko Yamazaki, Chikara Iwasawa, Hideo Okamoto, Masahiro Ise, Hiroaki Ohta
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Publication number: 20100082514Abstract: Necessary display count information about a count that predetermined content data should be displayed in a predetermined display device in a displayable period is acquired, display result count information about the display result count that the predetermined content data is displayed between a start of the displayable period and a present time is acquired, the display estimated count that the predetermined content data should be displayed in any period of the displayable period from the present time is decided based on the displayable period, the necessary display count information, and the display result count information, display time zone information about time zones in which the predetermined content data can be displayed in the predetermined display device is acquired, and a display start time at which the content data is displayed in the predetermined display device is decided based on the display estimated count and the display time zone information.Type: ApplicationFiled: September 28, 2009Publication date: April 1, 2010Inventor: Keiko YAMAZAKI