Patents by Inventor Masahiro Yamakawa
Masahiro Yamakawa 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: 20250068184Abstract: A traveling system includes a registration processing unit that registers map data including arrangement information of a plurality of tags, a setting processing unit that sets arrangement information of a plurality of control points in a travelable area of a second automatic traveling device in the map data, and a generation processing unit that generates a first traveling route along which the first automatic traveling device travels by sequentially following the tags and a second traveling route along which the second automatic traveling device travels by sequentially following the control points such that the first automatic traveling device and the second automatic traveling device do not interfere with each other.Type: ApplicationFiled: August 1, 2024Publication date: February 27, 2025Inventors: THINH NGUYENQUANG, AKIHIRO YAMAKAWA, HIROSHI YAMAUCHI, MASAHIRO SAKAKIBARA, KAZUSHI KUWAHATA, HIROKI OSAWA
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Patent number: 11367884Abstract: A hydrogen supply system comprises a hydrogen station placed near a railroad track and configured to supply hydrogen to a moving body that is driven with a fuel cell used as an electric power source; and a train provided with a hydrogen tank and configured to run along the railroad track and transport hydrogen to the hydrogen station.Type: GrantFiled: August 7, 2019Date of Patent: June 21, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigeki Takaiwa, Masahiro Yamakawa, Hideshi Mizutani, Kenji Umayahara, Takao Ozawa, Shigeyuki Suzuki
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Patent number: 11342568Abstract: A fuel cell vehicle includes a fuel cell, a hydrogen tank, a driving motor, a power feeder and a controller. The controller is configured to: obtain current location information of the fuel cell vehicle, hydrogen supply position information, a fuel consumption of the fuel cell vehicle in a drive mode, a remaining amount of hydrogen stored in the hydrogen tank, and a consumed amount of hydrogen per unit time in a power feed mode; calculate an amount of hydrogen that is required for the fuel cell vehicle to drive from the current location to the supply position; calculate a power feedable time period when the fuel cell vehicle is operable in the power feed mode without causing the remaining amount of hydrogen to become less than the required amount of hydrogen, and display information with regard to the power feedable period.Type: GrantFiled: August 28, 2019Date of Patent: May 24, 2022Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenji Umayahara, Shigeki Takaiwa, Masahiro Yamakawa, Hideshi Mizutani, Takao Ozawa, Shigeyuki Suzuki
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Patent number: 11069204Abstract: An energy generation system using biomass includes a first information generation unit that generates the first information indicating that a distributor handling food has disposed of food waste biomass, an energy generation device that generates energy and the like using biomass collected from the distributor, a second information generation unit that generates the second information indicating that energy and the like have been generated using biomass collected from the distributor, a third information generation unit that obtains the first information and the second information and generates the third information indicating generation of at least one of energy and energy sources by collecting biomass disposed by the distributor, and a display unit that displays the third information generated by the third information generation unit.Type: GrantFiled: August 27, 2019Date of Patent: July 20, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenji Umayahara, Shigeki Takaiwa, Masahiro Yamakawa, Hideshi Mizutani, Takao Ozawa, Shigeyuki Suzuki
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Publication number: 20200091524Abstract: A fuel cell vehicle comprises a fuel cell, a hydrogen tank, a driving motor, a power feeder and a controller.Type: ApplicationFiled: August 28, 2019Publication date: March 19, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenji UMAYAHARA, Shigeki TAKAIWA, Masahiro YAMAKAWA, Hideshi MIZUTANI, Takao OZAWA, Shigeyuki SUZUKI
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Publication number: 20200082681Abstract: An energy generation system using biomass includes a first information generation unit that generates the first information indicating that a distributor handling food has disposed of food waste biomass, an energy generation device that generates energy and the like using biomass collected from the distributor, a second information generation unit that generates the second information indicating that energy and the like have been generated using biomass collected from the distributor, a third information generation unit that obtains the first information and the second information and generates the third information indicating generation of at least one of energy and energy sources by collecting biomass disposed by the distributor, and a display unit that displays the third information generated by the third information generation unit.Type: ApplicationFiled: August 27, 2019Publication date: March 12, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenji UMAYAHARA, Shigeki TAKAIWA, Masahiro YAMAKAWA, Hideshi MIZUTANI, Takao OZAWA, Shigeyuki SUZUKI
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Publication number: 20200067114Abstract: A hydrogen supply system comprises a hydrogen station placed near a railroad track and configured to supply hydrogen to a moving body that is driven with a fuel cell used as an electric power source; and a train provided with a hydrogen tank and configured to run along the railroad track and transport hydrogen to the hydrogen station.Type: ApplicationFiled: August 7, 2019Publication date: February 27, 2020Inventors: Shigeki TAKAIWA, Masahiro YAMAKAWA, Hideshi MIZUTANI, Kenji UMAYAHARA, Takao OZAWA, Shigeyuki SUZUKI
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Patent number: 9446350Abstract: [Object] To provide a gas decomposition apparatus and a gas decomposition method in which no safety problems occur in spite of the application of a relatively high voltage between an anode and a cathode for the purpose of decomposing odorous gases of many types. [Solution] A catalytic electrode layer 6 that contains a catalyst and is porous; a counter electrode layer 7 that forms a pair with the catalytic electrode; and an electrolyte layer 15 that is sandwiched between the catalytic electrode and the counter electrode and has ion conductivity are included. The catalyst is held by the catalytic electrode in the form of being carried by a carrier containing a conductive material or the catalyst is directly carried by the catalytic electrode. A conductive material in the catalytic electrode, the conductive material being in contact with the catalyst, is not a noncovalent carbon material.Type: GrantFiled: December 19, 2013Date of Patent: September 20, 2016Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masatoshi Majima, Shinji Inazawa, Koji Nitta, Masahiro Yamakawa, Takayasu Sugihara, Yasuhiro Takeda, Yoshihiro Akahane, Takahiro Imai
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Patent number: 9181608Abstract: A magnesium alloy sheet is made of a magnesium alloy containing Al. Particles of an intermetallic compound containing at least one of Al and Mg are present in the sheet in a dispersed state. The sheet includes an oxide film which extends substantially over the surface of the sheet and which has a uniform thickness. The average size of the particles of the intermetallic compound is 0.5 ?m or less. The percentage of the total area of the particles is 11% or less. Therefore, the magnesium alloy sheet is excellent corrosion resistance. A magnesium alloy structural member is provided.Type: GrantFiled: January 25, 2011Date of Patent: November 10, 2015Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masahiro Yamakawa, Takayasu Sugihara, Osamu Mizuno, Kohji Inokuchi, Mitsutaka Tsubokura
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Patent number: 9103010Abstract: A magnesium alloy structural member having excellent corrosion resistance is provided. The magnesium alloy structural member includes a magnesium alloy substrate that contains more than 7.5% by mass of Al and an anticorrosive layer formed on a surface of the substrate by chemical conversion treatment. The substrate contains a precipitate, typically, particles dispersed therein. The particles are made of an intermetallic compound containing at least one of Al and Mg and have an average particle size of 0.05 ?m or more and 1 ?m or less. The total area of the particles accounts for 1% by area or more and 20% by area or less. The anticorrosive layer includes a lower sublayer and a surface sublayer on the substrate in this order. The surface sublayer is denser than the lower sublayer. The substrate of the magnesium alloy structural member has high corrosion resistance because of a high Al content.Type: GrantFiled: December 6, 2010Date of Patent: August 11, 2015Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Osamu Mizuno, Nobuyuki Okuda, Koji Mori, Masahiro Yamakawa, Masayuki Nishizawa, Takayasu Sugihara
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Patent number: 8906294Abstract: A magnesium alloy material having excellent impact resistance is provided. The magnesium alloy material is composed of a magnesium alloy that contains more than 7.5% by mass of Al and has a Charpy impact value of 30 J/cm2 or more. Typically, the magnesium alloy material has an elongation of 10% or more at a tension speed of 10 m/s in a high-speed tensile test. The magnesium alloy is composed of a precipitate, typically made of an intermetallic compound containing at least one of Al and Mg, and contains particles having an average particle size of 0.05 ?M or more and 1 ?m or less dispersed therein. The total area of the particles accounts for 1% by area or more and 20% by area or less. The magnesium alloy material containing fine precipitate particles dispersed therein has high impact absorption capacity through dispersion strengthening and has excellent impact resistance.Type: GrantFiled: December 6, 2010Date of Patent: December 9, 2014Assignee: Sumitomo Electric Industries, Ltd.Inventors: Osamu Mizuno, Nobuyuki Okuda, Koji Mori, Masahiro Yamakawa, Masayuki Nishizawa, Takayasu Sugihara, Kohji Inokuchi, Nozomu Kawabe
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Publication number: 20140308157Abstract: A magnesium alloy material having high corrosion resistance is provided. The magnesium alloy material contains a magnesium alloy containing 7.3% to 16% by mass Al, wherein a region having an Al content of 0.8x % by mass or more and 1.2x % by mass or less occupies 50% by area or more, a region having an Al content of 1.4x % by mass or more occupies 17.5% by area or less, wherein x % by mass denotes the Al content of the entire magnesium alloy material, and there is substantially no region having an Al content of 4.2% by mass or less. The magnesium alloy material has small variations in Al concentration and includes a few regions having a very low Al content, thereby effectively preventing and retarding local corrosion. Thus, the magnesium alloy material has higher corrosion resistance than die-cast components having the same Al content.Type: ApplicationFiled: December 28, 2011Publication date: October 16, 2014Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masahiro Yamakawa, Masatada Numano, Takayasu Sugihara, Yugo Kubo, Kohji Inokuchi, Osamu Mizuno
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Patent number: 8802289Abstract: Disclosed is a composition for electrode comprising (i) a positive electrode active material comprising an iron compound and carbon, and (ii) a copolymer (P) prepared by copolymerization of acrylic acid esters and/or methacrylic acid esters, with an ?,?-unsaturated nitrile compound. Also disclosed is an electrode comprised of an active material layer made of the composition for electrode, and a collector. This electrode can be produced by mixing the positive electrode active material, the copolymer (P), a solvent and an optional thickener, by a mixer to prepare an electrode composition slurry with solid content of 40-90% by weight, coating a collector with the electrode composition slurry, and then, removing the solvent from the thus-formed coating. Further disclosed a battery provided with the electrode.Type: GrantFiled: October 5, 2005Date of Patent: August 12, 2014Assignee: Zeon CorporationInventors: Mayumi Fukumine, Mitsuhiro Mori, Masahiro Yamakawa, Hidekazu Mori
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Publication number: 20140102913Abstract: [Object] To provide a gas decomposition apparatus and a gas decomposition method in which no safety problems occur in spite of the application of a relatively high voltage between an anode and a cathode for the purpose of decomposing odorous gases of many types. [Solution] A catalytic electrode layer 6 that contains a catalyst and is porous; a counter electrode layer 7 that forms a pair with the catalytic electrode; and an electrolyte layer 15 that is sandwiched between the catalytic electrode and the counter electrode and has ion conductivity are included. The catalyst is held by the catalytic electrode in the form of being carried by a carrier containing a conductive material or the catalyst is directly carried by the catalytic electrode. A conductive material in the catalytic electrode, the conductive material being in contact with the catalyst, is not a noncovalent carbon material.Type: ApplicationFiled: December 19, 2013Publication date: April 17, 2014Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masatoshi MAJIMA, Shinji INAZAWA, Koji NITTA, Masahiro YAMAKAWA, Takayasu SUGIHARA, Yasuhiro TAKEDA, Yoshihiro AKAHANE, Takahiro IMAI
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Patent number: 8641887Abstract: [Object] To provide a gas decomposition apparatus and a gas decomposition method in which no safety problems occur in spite of the application of a relatively high voltage between an anode and a cathode for the purpose of decomposing odorous gases of many types. [Solution] A catalytic electrode layer 6 that contains a catalyst and is porous; a counter electrode layer 7 that forms a pair with the catalytic electrode; and an electrolyte layer 15 that is sandwiched between the catalytic electrode and the counter electrode and has ion conductivity are included. The catalyst is held by the catalytic electrode in the form of being carried by a carrier containing a conductive material or the catalyst is directly carried by the catalytic electrode. A conductive material in the catalytic electrode, the conductive material being in contact with the catalyst, is not a noncovalent carbon material.Type: GrantFiled: April 2, 2009Date of Patent: February 4, 2014Assignee: Sumitomo Electric Industries, Ltd.Inventors: Masatoshi Majima, Shinji Inazawa, Koji Nitta, Masahiro Yamakawa, Takayasu Sugihara, Yasuhiro Takeda, Yoshihiro Akahane, Takahiro Imai
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Patent number: 8388922Abstract: The present invention relates to a negative electrode material for a lithium battery comprising a carbonaceous negative electrode active substance having a specific surface area of 1 m2/g or more, a binder formed of styrene-butadiene rubber and a carbon fiber having a fiber diameter of 1 to 1,000 nm; and to a lithium battery using the negative electrode material, which has excellent characteristics, i.e., low electrode resistance, high electrode strength, excellent electrolytic solution permeability, high energy density, and good high-speed charging/discharging performance. The negative electrode material contains carbon fiber in the amount of 0.05 to 20 mass % and the binder formed of styrene-butadiene rubber in 0.1 to 6.0 mass %, and may further contain a thickener such as carboxymethyl cellulose in the amount of 0.3 to 3 mass %.Type: GrantFiled: April 19, 2011Date of Patent: March 5, 2013Assignees: Showa Denko K.K., Zeon CorporationInventors: Chiaki Sotowa, Masataka Takeuchi, Hidekazu Mori, Masahiro Yamakawa
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Publication number: 20120321881Abstract: A magnesium alloy sheet is made of a magnesium alloy containing Al. Particles of an intermetallic compound containing at least one of Al and Mg are present in the sheet in a dispersed state. The sheet includes an oxide film which extends substantially over the surface of the sheet and which has a uniform thickness. The average size of the particles of the intermetallic compound is 0.5 ?m or less. The percentage of the total area of the particles is 11% or less. Therefore, the magnesium alloy sheet is excellent corrosion resistance. A magnesium alloy structural member is provided.Type: ApplicationFiled: January 25, 2011Publication date: December 20, 2012Applicant: Sumitomo Electric Industries, Ltd.Inventors: Masahiro Yamakawa, Takayasu Sugihara, Osamu Mizuno, Kohji Inokuchi, Mitsutaka Tsubokura
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Publication number: 20120308809Abstract: A magnesium alloy structural member having excellent corrosion resistance is provided. The magnesium alloy structural member includes a magnesium alloy substrate that contains more than 7.5% by mass of Al and an anticorrosive layer formed on a surface of the substrate by chemical conversion treatment. The substrate contains a precipitate, typically, particles dispersed therein. The particles are made of an intermetallic compound containing at least one of Al and Mg and have an average particle size of 0.05 ?m or more and 1 ?m or less. The total area of the particles accounts for 1% by area or more and 20% by area or less. The anticorrosive layer includes a lower sublayer and a surface sublayer on the substrate in this order. The surface sublayer is denser than the lower sublayer. The substrate of the magnesium alloy structural member has high corrosion resistance because of a high Al content.Type: ApplicationFiled: December 6, 2010Publication date: December 6, 2012Applicant: Sumitomo Electric Industries, Ltd.Inventors: Osamu Mizuno, Nobuyuki Okuda, Koji Mori, Masahiro Yamakawa, Masayuki Nishizawa, Takayasu Sugihara
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Publication number: 20120282131Abstract: A magnesium alloy material having excellent impact resistance is provided. The magnesium alloy material is composed of a magnesium alloy that contains more than 7.5% by mass of Al and has a Charpy impact value of 30 J/cm2 or more. Typically, the magnesium alloy material has an elongation of 10% or more at a tension speed of 10 m/s in a high-speed tensile test. The magnesium alloy is composed of a precipitate, typically made of an intermetallic compound containing at least one of Al and Mg, and contains particles having an average particle size of 0.05 ?M or more and 1 ?m or less dispersed therein. The total area of the particles accounts for 1% by area or more and 20% by area or less. The magnesium alloy material containing fine precipitate particles dispersed therein has high impact absorption capacity through dispersion strengthening and has excellent impact resistance.Type: ApplicationFiled: December 6, 2010Publication date: November 8, 2012Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Osamu Mizuno, Nobuyuki Okuda, Koji Mori, Masahiro Yamakawa, Masayuki Nishizawa, Takayasu Sugihara, Kohji Inokuchi, Nozomu Kawabe
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Patent number: 8053066Abstract: A conductive paste contains metal powder, an inorganic binder, and an organic vehicle as main ingredients. The organic vehicle includes a solvent having a boiling point of 270° C. or higher, and the proportion of the solvent with respect to the entire solvent included in the organic vehicle is 3 to 100% by weight.Type: GrantFiled: January 18, 2007Date of Patent: November 8, 2011Assignee: Sumitomo Electric Industries, Ltd.Inventors: Masahiro Yamakawa, Kenji Miyazaki