Patents by Inventor Junji Nunomura
Junji Nunomura 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: 11932956Abstract: An aluminum member includes: a base material made of aluminum or an aluminum alloy; and an anodized coating including a barrier layer on a surface of the base material and a porous layer on the barrier layer, wherein the anodized coating contains phosphorus (P) and sulfur (S), and has a thickness of 100 ?m or less, and, in a depth direction heading from a surface of the anodized coating toward the base material, a depth providing a maximum content of S in a region situated at a depth of 500 nm or more from the surface of the anodized coating is larger than a depth providing a maximum content of P, and an inequality (the maximum content of S)>(the maximum content of P) holds.Type: GrantFiled: September 17, 2020Date of Patent: March 19, 2024Assignee: UACJ CORPORATIONInventors: Mihoko Kikuchi, Junji Nunomura
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Publication number: 20230212776Abstract: An aluminum member (1) includes: a base material (2) composed of aluminum or an aluminum alloy; and an anodic oxide film (3) formed on a surface of the base material. The anodic oxide film includes: an amorphous layer (31), which is composed of an amorphous aluminum oxide and is formed on the base material (2); and a crystal layer (32), which is composed of a crystalline aluminum oxide and is formed on the amorphous layer (31). The aluminum member (1) can be obtained by forming the anodic oxide film (3) on the base material (2) by performing an anodization process on the base material (2) in an electrolytic solution, which contains boron atoms and has a pH of 7.0-12.0.Type: ApplicationFiled: June 11, 2021Publication date: July 6, 2023Inventors: Tatsuya KIKUCHI, Miu SATO, Junji NUNOMURA, Yoshiyuki OYA
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Patent number: 11549190Abstract: The present disclosure relates to an aluminum member including a mother material containing aluminum or an aluminum alloy, and an anodic oxide film on the surface of the mother material. The anodic oxide film has a barrier layer on the surface of the mother material, and a porous layer on the barrier layer), and the BET specific surface area of the anodic oxide film is 0.1 to 10.0 m2/g.Type: GrantFiled: January 27, 2021Date of Patent: January 10, 2023Assignee: UACJ CORPORATIONInventors: Syu Saito, Junji Nunomura
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Patent number: 11519090Abstract: The method for producing an electrolytic aluminum foil of the present disclosure is a method for producing an electrolytic aluminum foil, the method including supplying an electrolytic solution in an electrolytic cell provided with a diaphragm between an anode and a cathode and depositing an aluminum foil on a surface of the cathode by electrolysis, wherein the diaphragm is made of aluminum having a purity of 85.0% or more and has a plurality of pores having an average pore diameter of 100 to 1000 ?m.Type: GrantFiled: June 11, 2019Date of Patent: December 6, 2022Assignee: UACJ CorporationInventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima
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Publication number: 20220196340Abstract: A heat-transfer member (1) is used in a cooling system in which an alcohol serves as a coolant. The heat-transfer member (1) has: a heat-receiving surface (11) configured such that it can receive heat from a heat-generating body; and a heat-dissipating surface (12) configured such that it can dissipate, to the coolant, the heat received at the heat-receiving surface (11). The heat-dissipating surface (12) has a plurality of pores (121) whose average pore diameter is 5 nm or more and 1,000 nm or less. A cooling system can be configured by causing the coolant to contact the heat-dissipating surface (12) of the heat-transfer member (1).Type: ApplicationFiled: April 30, 2020Publication date: June 23, 2022Inventors: Yasuyuki TAKATA, Koji TAKAHASHI, Biao SHEN, Junji NUNOMURA, Yoichiro BEKKI, Akihiro FUKATSU
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Patent number: 11225725Abstract: A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.Type: GrantFiled: July 9, 2019Date of Patent: January 18, 2022Assignee: UACJ CORPORATIONInventors: Junji Nunomura, Yukio Honkawa, Yoichi Kojima, Mikito Ueda
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Publication number: 20220002892Abstract: A method for producing an aluminum material, including: providing an electrolytic cell in which an anode electrode containing 0.01 to 30% by mass Si and Al and a cathode electrode are immersed in an electrolytic solution and depositing aluminum on the cathode electrode by energizing the anode electrode and the cathode electrode in the electrolytic solution.Type: ApplicationFiled: September 21, 2021Publication date: January 6, 2022Applicant: UACJ CORPORATIONInventors: Junji NUNOMURA, Yukio HONKAWA, Yoichi KOJIMA, Tetsuya TSUDA
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Publication number: 20210348293Abstract: Provided is an aluminum member including a base material containing aluminum or an aluminum alloy and an anodic oxide film having a barrier layer on the surface of the base material and a porous layer on the barrier layer, in which the anodic oxide film has a thickness of 100 ?m or less, the porous layer contains S and P, the concentration of S, CS, and the concentration of P, CP, in the porous layer, measured by X-ray photoelectron spectroscopy, satisfy CS>CP over the depth direction from the surface of the anodic oxide film toward the base material.Type: ApplicationFiled: July 21, 2021Publication date: November 11, 2021Applicant: UACJ CORPORATIONInventor: Junji NUNOMURA
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Publication number: 20210285120Abstract: The aluminum member of the present disclosure includes a mother material containing aluminum or an aluminum alloy, and an anodic oxide film on the surface of the mother material, in which the arithmetical mean roughness Ra, the mean length of roughness curve elements RSm, and the Hunter whiteness of the aluminum member, measured from the surface side of the anodic oxide film, are 0.1 ?m or more, 10 ?m or less, and 60 to 90, respectively.Type: ApplicationFiled: May 27, 2021Publication date: September 16, 2021Applicant: UACJ CORPORATIONInventors: Akihiro FUKATSU, Junji NUNOMURA
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Patent number: 11035047Abstract: The present disclosure provides a high-quality electrolytic aluminum foil which includes a smooth surface and an end portion containing no dendritic deposit, and a method for producing the same which can obtain the electrolytic aluminum foil at a high collection rate. An electrolytic aluminum foil of the present disclosure includes a surface having an arithmetic average height (Sa) of 0.15 ?m or less, wherein when, for a size of a crystal grain present in a cross-sectional surface, a first maximum dimension as measured in a thickness direction of the cross-sectional surface is x (?m), and a second maximum dimension as measured in a width direction of the cross-sectional surface is y (?m), x and y satisfy (x+y)/2?3 ?m and 1?x/y?4.Type: GrantFiled: May 21, 2019Date of Patent: June 15, 2021Assignee: UACJ CorporationInventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima, Koichi Ui
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Publication number: 20210147997Abstract: The present disclosure relates to an aluminum member including a mother material containing aluminum or an aluminum alloy, and an anodic oxide film on the surface of the mother material. The anodic oxide film has a barrier layer on the surface of the mother material, and a porous layer on the barrier layer), and the BET specific surface area of the anodic oxide film is 0.1 to 10.0 m2/g.Type: ApplicationFiled: January 27, 2021Publication date: May 20, 2021Applicant: UACJ CORPORATIONInventors: Syu SAITO, Junji NUNOMURA
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Patent number: 10927469Abstract: A production method of aluminum including: a step of synthesizing an aluminum compound from a mixture including a halogenated aluminum hydrate and a perfluoroalkylsulfonimide-type or perfluoroalkylsulfonamide-type ionic liquid represented by general formula (1); a step of dissolving the aluminum compound in a nitrile-based organic solvent to prepare an aluminum electrolyte; a step of adding at least one ligand selected from a phosphorus compound and an organic compound having an amide group to the aluminum electrolyte and dehydrating water molecules from a hydrate included in the aluminum electrolyte; and a step of electrodepositing aluminum on a cathode by allowing electricity to pass between an anode and the cathode in the aluminum electrolyte after the dehydrating step.Type: GrantFiled: October 24, 2019Date of Patent: February 23, 2021Assignee: UACJ CORPORATIONInventors: Junji Nunomura, Yoichi Kojima, Mikito Ueda
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Publication number: 20210002783Abstract: An aluminum member includes: a base material made of aluminum or an aluminum alloy; and an anodized coating including a barrier layer on a surface of the base material and a porous layer on the barrier layer, wherein the anodized coating contains phosphorus (P) and sulfur (S), and has a thickness of 100 ?m or less, and, in a depth direction heading from a surface of the anodized coating toward the base material, a depth providing a maximum content of S in a region situated at a depth of 500 nm or more from the surface of the anodized coating is larger than a depth providing a maximum content of P, and an inequality (the maximum content of S)>(the maximum content of P) holds.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Applicant: UACJ CORPORATIONInventors: Mihoko KIKUCHI, Junji NUNOMURA
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Patent number: 10844506Abstract: An aluminum member comprises a base material made of aluminum or art aluminum alloy, and an anodized coating provided on a surface of the base material and having a thickness of 100 ?m or less. The anodized coating comprises a barrier layer formed on the surface of the base material and having a thickness of 10 to 150 nm, and a porous layer formed on the barrier layer and having a thickness of 6 ?m or more. The porous layer comprises a first pore extending in a thickness direction of the porous layer from a boundary between the porous layer and the barrier layer, and a second pore connected to the first pore and extending so as to branch radially in the thickness direction of the porous layer toward a surface of the porous layer.Type: GrantFiled: November 27, 2018Date of Patent: November 24, 2020Assignee: UACJ CorporationInventor: Junji Nunomura
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Publication number: 20200131656Abstract: A production method of aluminum including: a step of synthesizing an aluminum compound from a mixture including a halogenated aluminum hydrate and a perfluoroalkylsulfonimide-type or perfluoroalkylsulfonamide-type ionic liquid represented by general formula (1); a step of dissolving the aluminum compound in a nitrile-based organic solvent to prepare an aluminum electrolyte; a step of adding at least one ligand selected from a phosphorus compound and an organic compound having an amide group to the aluminum electrolyte and dehydrating water molecules from a hydrate included in the aluminum electrolyte; and a step of electrodepositing aluminum on a cathode by allowing electricity to pass between an anode and the cathode in the aluminum electrolyte after the dehydrating step.Type: ApplicationFiled: October 24, 2019Publication date: April 30, 2020Applicant: UACJ CORPORATIONInventors: Junji NUNOMURA, Yoichi KOJIMA, Mikito UEDA
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Patent number: 10590555Abstract: A method for producing high quality electrolytic aluminum foil excellent in peelability from a cathode surface is provided. A method for producing electrolytic aluminum foil according to the present disclosure is a method for producing electrolytic aluminum foil, comprising steps of depositing an aluminum film on a surface of a cathode in an electrolytic cell supplied with an electrolytic solution and comprising the cathode; and peeling the deposited aluminum film from the surface of the cathode to provide aluminum foil, wherein the cathode has surface roughness of an arithmetic average roughness (Ra) of 0.10 to 0.40 ?m and a ten-point average roughness (Rz) of 0.20 to 0.70 ?m.Type: GrantFiled: November 29, 2017Date of Patent: March 17, 2020Assignee: UACJ CorporationInventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima
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Publication number: 20190330752Abstract: A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.Type: ApplicationFiled: July 9, 2019Publication date: October 31, 2019Applicant: UACJ CORPORATIONInventors: Junji Nunomura, Yukio Honkawa, Yoichi Kojima, Mikito Ueda
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Publication number: 20190292670Abstract: The method for producing an electrolytic aluminum foil of the present disclosure is a method for producing an electrolytic aluminum foil, the method including supplying an electrolytic solution in an electrolytic cell provided with a diaphragm between an anode and a cathode and depositing an aluminum foil on a surface of the cathode by electrolysis, wherein the diaphragm is made of aluminum having a purity of 85.0% or more and has a plurality of pores having an average pore diameter of 100 to 1000 ?m.Type: ApplicationFiled: June 11, 2019Publication date: September 26, 2019Applicant: UACJ CorporationInventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima
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Publication number: 20190276945Abstract: The present disclosure provides a high-quality electrolytic aluminum foil which includes a smooth surface and an end portion containing no dendritic deposit, and a method for producing the same which can obtain the electrolytic aluminum foil at a high collection rate. An electrolytic aluminum foil of the present disclosure includes a surface having an arithmetic average height (Sa) of 0.15 ?m or less, wherein when, for a size of a crystal grain present in a cross-sectional surface, a first maximum dimension as measured in a thickness direction of the cross-sectional surface is x (?m), and a second maximum dimension as measured in a width direction of the cross-sectional surface is y (?m), x and y satisfy (x+y)/2?3 ?m and 1?x/y?4.Type: ApplicationFiled: May 21, 2019Publication date: September 12, 2019Applicant: UACJ CORPORATIONInventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima, Koichi Ui
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Publication number: 20190161881Abstract: An aluminum member comprises a base material made of aluminum or art aluminum alloy, and an anodized coating provided on a surface of the base material and having a thickness of 100 ?m or less. The anodized coating comprises a barrier layer formed on the surface of the base material and having a thickness of 10 to 150 nm, and a porous layer formed on the barrier layer and having a thickness of 6 ?m or more. The porous layer comprises a first pore extending in a thickness direction of the porous layer from a boundary between the porous layer and the barrier layer, and a second pore connected to the first pore and extending so as to branch radially in the thickness direction of the porous layer toward a surface of the porous layer.Type: ApplicationFiled: November 27, 2018Publication date: May 30, 2019Applicant: UACJ CorporationInventor: Junji Nunomura