Patents by Inventor Hirotsune Watanabe
Hirotsune Watanabe 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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Patent number: 12152189Abstract: A surfactant composition for a foamed sand including 80 to 99.8 mass % of a compound (A) represented by formula (1); 0.1 to 10 mass % of a compound (B) represented by formula (2); and 0.1 to 10 mass % of an amphoteric surfactant (C): R1O-(EO)n—SO3M1??(1) wherein R1 represents a hydrocarbon group having 6 to 22 carbons, EO represents oxyethylene group, n is 1 to 10, and M1 represents an alkali metal, an alkaline earth metal, ammonium or an organic ammonium; R2O—SO3M2??(2) wherein R2 represents a hydrocarbon group having 6 to 22 carbons, and M2 represents an alkali metal, an alkaline earth metal, ammonium or an organic ammonium.Type: GrantFiled: June 4, 2020Date of Patent: November 26, 2024Assignees: NOF CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro Sugaya, Hiroyuki Komiya, Munehiro Yamada, Hirotsune Watanabe, Shogo Izumi
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Patent number: 12145196Abstract: A method for manufacturing a cast product in which a core can be easily discharged from a casting roughly-shaped material is provided. A method for manufacturing a cast product according to the present disclosure includes: a step of hermetically sealing a casting roughly-shaped material formed by casting using a core in a container containing water; a step of heating the water contained in the container while keeping the casting roughly-shaped material hermetically sealed and thereby destroying the core while keeping a pressure inside the container at a pressure higher than an atmospheric pressure, and thereby forming core sand; and a step of discharging the core sand from the casting roughly-shaped material.Type: GrantFiled: March 7, 2024Date of Patent: November 19, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shoko Hori, Hirotsune Watanabe
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Publication number: 20240316625Abstract: A method for manufacturing a cast product in which a core can be easily discharged from a casting roughly-shaped material is provided. A method for manufacturing a cast product according to the present disclosure includes: a step of hermetically sealing a casting roughly-shaped material formed by casting using a core in a container containing water; a step of heating the water contained in the container while keeping the casting roughly-shaped material hermetically sealed and thereby destroying the core while keeping a pressure inside the container at a pressure higher than an atmospheric pressure, and thereby forming core sand; and a step of discharging the core sand from the casting roughly-shaped material.Type: ApplicationFiled: March 7, 2024Publication date: September 26, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shoko HORI, Hirotsune WATANABE
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Publication number: 20240181522Abstract: A surfactant composition for a formed sand, said surfactant composition contains a compound (A) represented by the following formula (1) and a compound (B) represented by the following formula (2). The content of the compound (A) is 25 to 85 mass % and content of the compound (B) is 15 to 75 mass %, provided that a total mass of the compound (A) and compound (B) is defined as 100 mass %: R1O-(EO)aSO3M1??(1) wherein R1 represents a hydrocarbon group having 6 to 22 carbon atoms, EO represents oxyethylene group, a is 1 to 10, and M1 represents an alkali metal, alkaline earth metal, ammonium or an organic ammonium, R2CONR3C2H4SO3M2??(2) wherein R2CO represents a fatty acyl group having 6 to 22 carbon atoms, R3 represents hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and M2 represents an alkali metal, an alkaline earth metal, ammonium or an organic ammonium.Type: ApplicationFiled: December 5, 2022Publication date: June 6, 2024Applicants: NOF CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotsune WATANABE, Shoko HORI, Hiroki EZUKA, Nanae HABARA, Hiroya FUJITA
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Patent number: 11986878Abstract: When molding surfaces (50A) of a pair of dies (50) are to be cleaned by air-blowing, air is blown towards the molding surfaces (50A) from blowing nozzles (22A) of a cleaning blowing function portion (22) while a moving body (16) is reciprocatingly moved by driving force of a driving mechanism (18). When a parting agent is to be applied to the molding surfaces (50A) of the pair of dies (50), the mold release agent is jetted out towards the molding surfaces (50A) from spraying nozzles (24A) of a parting agent application function portion (24) while the moving body (16) is reciprocatingly moved by the driving force of the driving mechanism (18). In both of these situations, at the same time as the treatment of the molding surfaces (50A), a cleaning brush (32) reciprocatingly moves together with the moving body (16) and sweeps a device floor surface (12).Type: GrantFiled: April 24, 2019Date of Patent: May 21, 2024Assignees: Sintokogio, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Youhei Noguchi, Koji Sakou, Hirotaka Kurita, Takashi Nagaya, Hirotsune Watanabe, Katsutoshi Okumura
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Patent number: 11892337Abstract: An opening portion that is formed so as to pass-through an opening/closing plate portion of a gate, can be disposed at a region overlapping a lower end opening of a hopper. The opening portion is structured by a first pass-through portion, and a second pass-through portion that is formed so as to be continuous with the first pass-through portion. A width, in a direction orthogonal to a lined-up direction in which the first pass-through portion and the second pass-through portion are lined up, is narrower than the first pass-through portion. Further, a driving mechanism moves the gate such that the opening/closing plate portion moves in the lined-up direction as seen in a plan view. Based on a preset target value of weight of sand, a control section controls the driving mechanism so as to decrease an amount of overlap of the opening portion of the gate and the lower end opening of the hopper in a stepwise manner in accordance with an increase in the weight of the sand measured by a scale.Type: GrantFiled: June 5, 2019Date of Patent: February 6, 2024Assignees: Sintokogio, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Youhei Noguchi, Koji Sakou, Hirotaka Kurita, Takashi Nagaya, Hirotsune Watanabe, Takumi Maegawa
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Patent number: 11761070Abstract: The present disclosure provides a method for manufacturing an aluminum alloy member capable of suppressing deterioration in ductility thereof. In the method for manufacturing an aluminum alloy member, an aluminum alloy casting material that contains 2.0 to 5.5 mass % of Cu, and 4.0 to 7.0 mass % of Si in which a content of Mg is 0.5 mass % or less, a content of Zn is 1.0 mass % or less, a content of Fe is 1.0 mass % or less, a content of Mn is 0.5 mass % or less and the balance is made of Al and inevitable impurities is used. The method for manufacturing an aluminum alloy member includes a heating and holding step of heating and holding the aluminum alloy casting material within a solid-liquid coexisting temperature region; and a quenching step of rapidly cooling the aluminum alloy casting material after performing the heating and holding step.Type: GrantFiled: December 17, 2021Date of Patent: September 19, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke Yokota, Hirotsune Watanabe, Makoto Kikuchi, Hiroshi Kawahara, Yasushi Iwata, Jun Yaokawa, Kazuma Hibi
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Publication number: 20230271351Abstract: A mold device of related art has a problem that a total volume of the device becomes large. In an example aspect of the present disclosure, a mold device includes a fixed mold base for supporting a fixed mold, a mobile mold base for supporting a mobile mold, a frame to which the fixed mold base is fixed, provided to extend in a direction in which the mobile mold base is moved, and formed into a wall shape, and holding means for movably supporting the mobile mold base to the frame. The frame is provided along at least one side of the mobile mold base except an upper surface thereof with the mold device installed, and the holding means support the mobile mold base at one side of the mobile mold base.Type: ApplicationFiled: January 24, 2023Publication date: August 31, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotsune WATANABE, So Nakayama, Akinobu Kawai, Hiroyuki Hamaguchi
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Patent number: 11633894Abstract: A cavity includes a first cavity portion, and a second cavity portion that is formed between the first cavity portion and a runner and that corresponds to a baseboard. There is adopted a configuration in which a foamed admixture is supplied to the first cavity portion via the second cavity portion upon being supplied to the cavity via the runner. A collision portion with which the foamed admixture supplied to the cavity can collide before reaching the first cavity portion is formed at the second cavity portion.Type: GrantFiled: November 27, 2020Date of Patent: April 25, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirotsune Watanabe
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Patent number: 11607829Abstract: A cavity includes a first cavity portion, and a second cavity portion that is formed between the first cavity portion and a runner and that corresponds to a baseboard. There is adopted a configuration in which a foamed admixture is supplied to the first cavity portion via the second cavity portion upon being supplied to the cavity via the runner. A collision portion with which the foamed admixture supplied to the cavity can collide before reaching the first cavity portion is formed at the second cavity portion.Type: GrantFiled: November 27, 2020Date of Patent: March 21, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirotsune Watanabe
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Publication number: 20230044543Abstract: A mold replacement method that can contribute to simplification of unloading a fixed mold and a movable mold when the fixed mold and the movable mold are replaced. A mold replacement method includes coupling a fixed mold to a movable mold in a vertically divided molding machine, releasing a coupled state between the movable mold and a movable mold equipment base, rotating the fixed mold and the movable mold by a rotating mechanism for rotating a fixed mold equipment base, and disposing the movable mold above the fixed mold, releasing the coupled state between the fixed mold and the fixed mold equipment base, and unloading the fixed mold and movable mold from a fixed mold equipment base while a protrusion protruding outward from the movable mold is being supported by a fork of a lifting and lowering device.Type: ApplicationFiled: July 11, 2022Publication date: February 9, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotsune WATANABE, Masaomi MITSUTAKE
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Patent number: 11548059Abstract: An inorganic mold release agent for a core that is applied to a surface of a core containing an aggregate and an inorganic binder, and the mold release agent for a core is a powder containing silica powder, which is applied in a powder form to the surface of the core.Type: GrantFiled: September 14, 2021Date of Patent: January 10, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasutake Nagata, Hirotsune Watanabe
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Publication number: 20220228067Abstract: A surfactant composition for a formed sand including 80 to 99.8 mass % of a compound (A) represented by formula (1); 0.1 to 10 mass % of a compound (B) represented by formula (2); and 0.1 to 10 mass % of an amphoteric surfactant (C): R1O-(EO)n—SO3M1??(1) wherein R1 represents a hydrocarbon group having 6 to 22 carbons, EO represents oxyethylene group, n is 1 to 10, and M1 represents an alkali metal, an alkaline earth metal, ammonium or an organic ammonium; R2O—SO3M2??(2) wherein R2 represents a hydrocarbon group having 6 to 22 carbons, and M2 represents an alkali metal, an alkaline earth metal, ammonium or an organic ammonium.Type: ApplicationFiled: June 4, 2020Publication date: July 21, 2022Applicants: NOF CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro SUGAYA, Hiroyuki KOMIYA, Munehiro YAMADA, Hirotsune WATANABE, Shogo IZUMI
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Publication number: 20220226889Abstract: A fluid heating furnace is a fluid heating furnace for recycling core sand used for a core. The fluid heating furnace includes: a fluid tank in which the core sand is heated by flowing gas while the core sand is caused to flow by the flowing gas; and a gas discharge passage communicating with the fluid tank such that the flowing gas is discharged through the gas discharge passage. The gas discharge passage includes an inlet portion via which the core sand is put into the fluid tank through the gas discharge passage. In the gas discharge passage, the flowing gas discharged through the gas discharge passage heats the core sand put into the gas discharge passage from the inlet portion, and in the fluid tank, the core sand heated in the gas discharge passage is further heated.Type: ApplicationFiled: November 17, 2021Publication date: July 21, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daisuke YAMASHITA, Hirotsune WATANABE
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Publication number: 20220143681Abstract: An inorganic mold release agent for a core that is applied to a surface of a core containing an aggregate and an inorganic binder, and the mold release agent for a core is a powder containing silica powder, which is applied in a powder form to the surface of the core.Type: ApplicationFiled: September 14, 2021Publication date: May 12, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasutake NAGATA, Hirotsune WATANABE
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Publication number: 20220106673Abstract: The present disclosure provides a method for manufacturing an aluminum alloy member capable of suppressing deterioration in ductility thereof. In the method for manufacturing an aluminum alloy member, an aluminum alloy casting material that contains 2.0 to 5.5 mass % of Cu, and 4.0 to 7.0 mass % of Si in which a content of Mg is 0.5 mass % or less, a content of Zn is 1.0 mass % or less, a content of Fe is 1.0 mass % or less, a content of Mn is 0.5 mass % or less and the balance is made of Al and inevitable impurities is used. The method for manufacturing an aluminum alloy member includes a heating and holding step of heating and holding the aluminum alloy casting material within a solid-liquid coexisting temperature region; and a quenching step of rapidly cooling the aluminum alloy casting material after performing the heating and holding step.Type: ApplicationFiled: December 17, 2021Publication date: April 7, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke YOKOTA, Hirotsune WATANABE, Makoto KIKUCHI, Hiroshi KAWAHARA, Yasushi IWATA, Jun YAOKAWA, Kazuma HIBI
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Patent number: 11214857Abstract: The present disclosure provides a method for manufacturing an aluminum alloy member capable of suppressing deterioration in ductility thereof. In the method for manufacturing an aluminum alloy member, an aluminum alloy casting material that contains 2.0 to 5.5 mass % of Cu, and 4.0 to 7.0 mass % of Si in which a content of Mg is 0.5 mass % or less, a content of Zn is 1.0 mass % or less, a content of Fe is 1.0 mass % or less, a content of Mn is 0.5 mass % or less and the balance is made of Al and inevitable impurities is used. The method for manufacturing an aluminum alloy member includes a heating and holding step of heating and holding the aluminum alloy casting material within a solid-liquid coexisting temperature region; and a quenching step of rapidly cooling the aluminum ally casting material after performing the heating and holding step.Type: GrantFiled: February 5, 2019Date of Patent: January 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke Yokota, Hirotsune Watanabe, Makoto Kikuchi, Hiroshi Kawahara, Yasushi Iwata, Jun Yaokawa, Kazuma Hibi
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Publication number: 20210283809Abstract: A cavity includes a first cavity portion, and a second cavity portion that is formed between the first cavity portion and a runner and that corresponds to a baseboard. There is adopted a configuration in which a foamed admixture is supplied to the first cavity portion via the second cavity portion upon being supplied to the cavity via the runner. A collision portion with which the foamed admixture supplied to the cavity can collide before reaching the first cavity portion is formed at the second cavity portion.Type: ApplicationFiled: November 27, 2020Publication date: September 16, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirotsune WATANABE
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Publication number: 20210270664Abstract: An opening portion (34) that is formed so as to pass-through an opening/closing plate portion (32) of a gate (30), can be disposed at a region overlapping a lower end opening (24A) of a hopper (20). The opening portion (34) is structured by a first pass-through portion (34A), and a second pass-through portion (34B) that is formed so as to be continuous with the first pass-through portion (34A). A width, in a direction orthogonal to a lined-up direction in which the first pass-through portion (34A) and the second pass-through portion (34B) are lined up, is narrower than the first pass-through portion (34A). Further, a driving mechanism (40) moves the gate (30) such that the opening/closing plate portion (32) moves in the lined-up direction as seen in a plan view.Type: ApplicationFiled: June 5, 2019Publication date: September 2, 2021Inventors: Youhei Noguchi, Koji Sakou, Hirotaka Kurita, Takashi Nagaya, Hirotsune Watanabe, Takumi Maegawa
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Publication number: 20210268572Abstract: When molding surfaces (50A) of a pair of dies (50) are to be cleaned by air-blowing, air is blown towards the molding surfaces (50A) from blowing nozzles (22A) of a cleaning blowing function portion (22) while a moving body (16) is reciprocatingly moved by driving force of a driving mechanism (18). When a parting agent is to be applied to the molding surfaces (50A) of the pair of dies (50), the mold release agent is jetted out towards the molding surfaces (50A) from spraying nozzles (24A) of a parting agent application function portion (24) while the moving body (16) is reciprocatingly moved by the driving force of the driving mechanism (18). In both of these situations, at the same time as the treatment of the molding surfaces (50A), a cleaning brush (32) reciprocatingly moves together with the moving body (16) and sweeps a device floor surface (12).Type: ApplicationFiled: April 24, 2019Publication date: September 2, 2021Inventors: Youhei Noguchi, Koji Sakou, Hirotaka Kurita, Takashi Nagaya, Hirotsune Watanabe, Katsutoshi Okumura