Patents Assigned to SOLUETA CO., LTD.
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Patent number: 11408055Abstract: The present invention relates to a copper alloy production method and a method for manufacturing foil from a copper alloy, and the copper alloy production method of the present invention includes: a metal oxide preparing process of preparing at least two metals, including copper, each of which is in the form of a metal oxide, a nano powder producing process of pulverizing the metal oxides to produce metal oxide nano powder having a nano size, and an alloy producing process of heat-treating the metal oxide nano powder to produce an alloy, whereby, when a copper alloy is produced, precipitates can be minimized, the characteristics of the alloy can be optimized, and the generation of oxides on the outer wall of a molten metal furnace can be suppressed.Type: GrantFiled: March 30, 2018Date of Patent: August 9, 2022Assignee: SOLUETA CO., LTD.Inventors: Eui-Hong Min, Sang-Ho Cho, Buck-Keun Choi
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Patent number: 11260452Abstract: A method for producing nickel nanopowder is introduced. For this, the present invention relates to a method for producing nickel nanopowder, including: (a) a step of preparing nickel oxide configured in the form of an oxide; (b) a nickel oxide nanopowder production step of pulverizing the nickel oxide so as to produce nano-sized nickel oxide nanopowder; (c) a step of drying the nickel oxide nanopowder; (d) a step of heat-treating the nickel oxide nanopowder so as to produce natural metal nickel nanopowder; and (e) a step of crushing the heat-treated nickel oxide nanopowder.Type: GrantFiled: April 27, 2018Date of Patent: March 1, 2022Assignee: SOLUETA CO., LTD.Inventors: Eui-Hong Min, Sang-Ho Cho, Buck-Keun Choi
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Patent number: 11090722Abstract: Provided is a method for making nickel nanopowders into paste including: (a) preparing a nickel oxide configured in the form of an oxide; (b) preparing nano-sized nickel oxide nanopowders by pulverizing the nickel oxide; (c) a step of drying the nickel oxide nanopowders; (d) a step of preparing natural metal nickel nanopowders by preparing the nickel oxide nanopowders as the natural metal nickel nanopowders through a reduction process in a hydrogen atmosphere and heat-treating the same at the same time; (e) a step of simultaneously performing a step of crushing the natural metal nickel nanopowders prepared by the heat treatment and a nanopowder oxidation preventing coating step of forming an oxidation preventing film on the natural metal nickel nanopowders with an additive; and (f) a step of making the natural metal nickel nanopowders, which have been simultaneously subjected to the crushing and coating steps, into paste.Type: GrantFiled: April 27, 2018Date of Patent: August 17, 2021Assignee: SOLUETA CO., LTD.Inventors: Eui-Hong Min, Sang-Ho Cho, Buck-Keun Choi
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Publication number: 20200189003Abstract: A method for producing nickel nanopowder is introduced. For this, the present invention relates to a method for producing nickel nanopowder, including: (a) a step of preparing nickel oxide configured in the form of an oxide; (b) a nickel oxide nanopowder production step of pulverizing the nickel oxide so as to produce nano-sized nickel oxide nanopowder; (c) a step of drying the nickel oxide nanopowder; (d) a step of heat-treating the nickel oxide nanopowder so as to produce natural metal nickel nanopowder; and (e) a step of crushing the heat-treated nickel oxide nanopowder.Type: ApplicationFiled: April 27, 2018Publication date: June 18, 2020Applicant: SOLUETA CO., LTD.Inventors: Eui-Hong MIN, Sang-Ho CHO, Buck-Keun CHOI
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Publication number: 20200189004Abstract: Provided is a method for making nickel nanopowders into paste including: (a) preparing a nickel oxide configured in the form of an oxide; (b) preparing nano-sized nickel oxide nanopowders by pulverizing the nickel oxide; (c) a step of drying the nickel oxide nanopowders; (d) a step of preparing natural metal nickel nanopowders by preparing the nickel oxide nanopowders as the natural metal nickel nanopowders through a reduction process in a hydrogen atmosphere and heat-treating the same at the same time; (e) a step of simultaneously performing a step of crushing the natural metal nickel nanopowders prepared by the heat treatment and a nanopowder oxidation preventing coating step of forming an oxidation preventing film on the natural metal nickel nanopowders with an additive; and (f) a step of making the natural metal nickel nanopowders, which have been simultaneously subjected to the crushing and coating steps, into paste.Type: ApplicationFiled: April 27, 2018Publication date: June 18, 2020Applicant: SOLUETA CO.,LTD.Inventors: Eui-Hong MIN, Sang-Ho CHO, Buck-Keun CHOI
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Publication number: 20200024690Abstract: The present invention relates to a copper alloy production method and a method for manufacturing foil from a copper alloy, and the copper alloy production method of the present invention includes: a metal oxide preparing process of preparing at least two metals, including copper, each of which is in the form of a metal oxide, a nano powder producing process of pulverizing the metal oxides to produce metal oxide nano powder having a nano size, and an alloy producing process of heat-treating the metal oxide nano powder to produce an alloy, whereby, when a copper alloy is produced, precipitates can be minimized, the characteristics of the alloy can be optimized, and the generation of oxides on the outer wall of a molten metal furnace can be suppressed.Type: ApplicationFiled: March 30, 2018Publication date: January 23, 2020Applicant: SOLUETA CO., LTD.Inventors: Eui-Hong MIN, Sang Ho CHO, Buck-Keun CHOI