Patents by Inventor Dong Hyun Bae
Dong Hyun Bae 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: 20240125908Abstract: A method for manufacturing a LiDAR device is proposed. The method may include providing a LiDAR module including a laser emitting module and a laser detecting module to a target region. The method may also include adjusting, on the basis of first detecting data obtained from the laser detecting module, a relative position of a detecting optic module with respect to the laser detecting module. The method may further include adjusting, on the basis of image data obtained from at least one image sensor, a relative position of an emitting optic module with respect to the laser emitting module.Type: ApplicationFiled: December 21, 2023Publication date: April 18, 2024Inventors: Chan M LIM, Dong Kyu KIM, Chang Mo JEONG, Hoon Il JEONG, Eunsung KWON, Junhyun JO, Bumsik WON, Suwoo NOH, Sang Shin BAE, Seong Min YUN, Jong Hyun YIM
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Patent number: 11949062Abstract: A pressing jig for removing gas generated in an activation process of a battery cell includes a plate-shaped lower plate on which the battery cell that has undergone the activation process is placed and fixed, and an upper plate that presses the battery cell placed on the lower plate from above. At least one of the upper plate or the lower plate has a structure in which n (n?3) separated sub-plates are assembled to form a single plate, and the sub-plates independently press the battery cell. The pressing jig can suppress trapping of internal gas by sequentially pressing the battery cell.Type: GrantFiled: January 8, 2021Date of Patent: April 2, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Suk Hyun Hong, Joon Sung Bae, Eui Kyung Lee, Sang Jih Kim, Beom Koon Lee, Dong Hun Bae
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Publication number: 20220081742Abstract: There are a composite material including an aluminum-based matrix and a device adopting the same. The composite material including an aluminum-based matrix may include an aluminum-based matrix including a plurality of grains, wherein each of the grains has a plurality of sub-grains; and a self-organized phase present at a sub-grain boundary between the plurality of sub-grains, wherein the self-organized phase has a band structure and includes a solid solution of aluminum and a non-metal element. The sub-grains and the self-organized phase coming into contact with the sub-grains may form a substantially coherent interface. A plurality of dislocations spaced apart from each other may be provided along the coherent interface.Type: ApplicationFiled: September 10, 2021Publication date: March 17, 2022Applicant: Industry-Academic Cooperation Foundation, Yonsei UniversityInventor: Dong Hyun BAE
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Patent number: 11066730Abstract: According to one embodiment of the present invention, a cast alloy material is provided. The cast alloy material includes a matrix metal and an alloy element, wherein oxide particles in a nanometer scale are decomposed in the matrix metal, so that a new phase including a metal element that is a component of the oxide particles and the alloy element forms a band or network structure, wherein the metal element and the alloy element have a relationship of a negative heat of mixing, and wherein oxygen atoms formed by decomposition of the oxide particles are dispersed in the matrix metal and do not form an oxide with the matrix metal.Type: GrantFiled: June 22, 2012Date of Patent: July 20, 2021Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Dong Hyun Bae, Hun Kang
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Patent number: 10626484Abstract: Disclosed is a method of manufacturing a metal matrix composite in which oxide nanoparticles are dispersed. Metal matrix composite powders in which oxide nanoparticles are dispersed are prepared. Gibbs free energy of the oxide nanoparticles is greater than that of an oxide of a metal matrix. A bulk processed material is manufactured from the composite powders through hot forming or a cast material is manufactured by inputting the composite powder into a molten base metal and then rapidly stirring a resultant mixture. The bulk processed material or the cast material is heat-treated so that atoms of the metal matrix and atoms of the oxide nanoparticles mutually diffuse. Oxygen atoms originating from the oxide nanoparticles are diffused and dispersed in the metal matrix.Type: GrantFiled: June 26, 2012Date of Patent: April 21, 2020Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Dong Hyun Bae, Jae Hyuck Shin, HyunJoo Choi, Hun Kang
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Patent number: 9758894Abstract: A method of manufacturing a metal material is provided. The method includes steps of manufacturing a metal material in which oxygen atoms are dispersed, and forming a protective coating on a surface of the metal material by using an anode oxidation treatment, wherein the oxygen atoms in the metal material are supplied to the surface of the metal material during the anode oxidation treatment, so that the metal material and the protective coating are interface-bonded to each other substantially without pores therebetween or without an interface layer in which pores are formed, thereby improving corrosion resistance, as compared to a protective coating formed on a surface of a metal material in which oxygen atoms are not dispersed.Type: GrantFiled: February 4, 2015Date of Patent: September 12, 2017Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Dong Hyun Bae, Hun Kang
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Publication number: 20170240998Abstract: Provided are an aluminum alloy having an adjusted microstructure in an aluminum matrix or an aluminum alloy matrix for high elongation percentage or high strength and a method of fabricating the same. The aluminum alloy includes an aluminum-based matrix; and a nonmetal element solidified in the aluminum-based matrix, wherein stacking fault energy of the aluminum alloy is decreased compared to that of pure aluminum.Type: ApplicationFiled: February 22, 2017Publication date: August 24, 2017Inventors: Dong Hyun Bae, Je Heon Jeon, Se Eun Shin
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Patent number: 9410228Abstract: The present invention provides a preparation method of a metal matrix composite. The method comprises the following steps of: 1) pulverizing a solid carbon material to a micrometer size; 2) plastic deforming a metal matrix powder and dispersing the pulverized nanometer-sized carbon material into the metal matrix powder during the plastic deformation; 3) integrating the metal/carbon nano-material composite powder obtained in step 2) by using a hot forming process; and 4) heat treating the integrated bulk material at a predetermined temperature to form a composite having a metal-carbon nanophase, a metal-carbon nanoband formed by growth of the metal-carbon nanophase, or a metal-carbon nano-network structure formed by self-coupling of the metal-carbon nanoband.Type: GrantFiled: October 22, 2010Date of Patent: August 9, 2016Assignee: Industry-Academic Cooperation Foundation Yonsei UniversityInventors: Dong Hyun Bae, Hyun Joo Choi
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Publication number: 20150218725Abstract: A method of manufacturing a metal material is provided. The method includes steps of manufacturing a metal material in which oxygen atoms are dispersed, and forming a protective coating on a surface of the metal material by using an anode oxidation treatment, wherein the oxygen atoms in the metal material are supplied to the surface of the metal material during the anode oxidation treatment, so that the metal material and the protective coating are interface-bonded to each other substantially without pores therebetween or without an interface layer in which pores are formed, thereby improving corrosion resistance, as compared to a protective coating formed on a surface of a metal material in which oxygen atoms are not dispersed.Type: ApplicationFiled: February 4, 2015Publication date: August 6, 2015Inventors: Dong Hyun BAE, Hun Kang
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Publication number: 20140186207Abstract: According to one embodiment of the present invention, a cast alloy material is provided. The cast alloy material includes a matrix metal and an alloy element, wherein oxide particles in a nanometer scale are decomposed in the matrix metal, so that a new phase including a metal element that is a component of the oxide particles and the alloy element forms a band or network structure, wherein the metal element and the alloy element have a relationship of a negative heat of mixing, and wherein oxygen atoms formed by decomposition of the oxide particles are dispersed in the matrix metal and do not form an oxide with the matrix metal.Type: ApplicationFiled: June 22, 2012Publication date: July 3, 2014Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Dong Hyun Bae, Hun Kang
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Publication number: 20140127069Abstract: Disclosed is a method of manufacturing a metal matrix composite in which oxide nanoparticles are dispersed. Metal matrix composite powders in which oxide nanoparticles are dispersed are prepared. Gibbs free energy of the oxide nanoparticles is greater than that of an oxide of a metal matrix. A bulk processed material is manufactured from the composite powders through hot forming or a cast material is manufactured by inputting the composite powder into a molten base metal and then rapidly stirring a resultant mixture. The bulk processed material or the cast material is heat-treated so that atoms of the metal matrix and atoms of the oxide nanoparticles mutually diffuse. Oxygen atoms originating from the oxide nanoparticles are diffused and dispersed in the metal matrix.Type: ApplicationFiled: June 26, 2012Publication date: May 8, 2014Applicant: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Dong Hyun Bae, Jae Hyuck Shin, HyunJoo Choi, Hun Kang
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Publication number: 20120241670Abstract: The present invention provides a preparation method of a metal matrix composite. The method comprises the following steps of: 1) pulverizing a solid carbon material to a micrometer size; 2) plastic deforming a metal matrix powder and dispersing the pulverized nanometer-sized carbon material into the metal matrix powder during the plastic deformation; 3) integrating the metal/carbon nano-material composite powder obtained in step 2) by using a hot forming process; and 4) heat treating the integrated bulk material at a predetermined temperature to form a composite having a metal-carbon nanophase, a metal-carbon nanoband formed by growth of the metal-carbon nanophase, or a metal-carbon nano-network structure formed by self-coupling of the metal-carbon nanoband.Type: ApplicationFiled: October 22, 2010Publication date: September 27, 2012Applicant: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Dong Hyun Bae, Hyun Joo Choi
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Patent number: 8075821Abstract: Disclosed herein is a method for manufacturing a composite having nanofibers uniformly dispersed in a metal, polymer or ceramic matrix. The method comprises mixing the nanofibers with a metallic, polymeric or ceramic material, followed by uniformly dispersing the nanofibers in the material via deformation of the metal, polymer or ceramic matrix by application of mechanical energy to the material; and imparting a directionality to the nanofibers via application of a mechanical mass flowing process to a composite material with the nanofibers uniformly dispersed in the metal, polymer or ceramic matrix. With the method, since the nanofibers can be uniformly dispersed in the metal, polymer or ceramic matrix via a simple mechanical process, the composite can be manufactured through a simple process, thereby enhancing manufacturing efficiency.Type: GrantFiled: March 27, 2006Date of Patent: December 13, 2011Assignee: Applied Carbon Nano Technology Co., LtdInventors: Dong-Hyun Bae, Sung-Woon Lee, Dae-Yeol Lee, Seok-Min Moon, Sang-Jun Bae
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Publication number: 20080219084Abstract: Disclosed herein is a method for manufacturing a composite having nanofibers uniformly dispersed in a metal, polymer or ceramic matrix. The method comprises mixing the nanofibers with a metallic, polymeric or ceramic material, followed by uniformly dispersing the nanofibers in the material via deformation of the metal, polymer or ceramic matrix by application of mechanical energy to the material; and imparting a directionality to the nanofibers via application of a mechanical mass flowing process to a composite material with the nanofibers uniformly dispersed in the metal, polymer or ceramic matrix. With the method, since the nanofibers can be uniformly dispersed in the metal, polymer or ceramic matrix via a simple mechanical process, the composite can be manufactured through a simple process, thereby enhancing manufacturing efficiency.Type: ApplicationFiled: March 27, 2006Publication date: September 11, 2008Inventors: Dong-Hyun Bae, Sung-Woon Lee, Dae-Yeol Lee, Seok-Min Moon, Sang-Jun Bae
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Publication number: 20080138236Abstract: There are provided a magnesium alloy with a misch metal, a method of producing a wrought magnesium alloy with a misch metal, and a wrought magnesium alloy produced thereby, in which a great deal of misch metal is added to magnesium, and thus refractory eutectic phases or multi-phases are formed into a stable network structure or a stable dispersed phase, thereby inhibiting deformation of a magnesium matrix at a high temperature to maintain a high strength. The magnesium alloy with the misch metal has the formula of Mg100-x-y-gAxByCz, where A is zinc (Zn) or aluminum (Al); B is the misch metal; C is at least one element selected from the group consisting of manganese (Mn), nickel (Ni), copper (Cu), tin (Sn), yttrium (Y), phosphor (P), silver (Ag), and strontium (Sr); and x, y and z are the compositions of 0 at %?x?6 at %, 0.8 at %?y?7 at %, and 0 at %?z?2 at %, respectively.Type: ApplicationFiled: March 7, 2006Publication date: June 12, 2008Applicant: G. ALLOY TECHNOLOGY CO, LTD.Inventors: Dong-Hyun Bae, Jin-Wook Kwon, Yule Kim
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Patent number: 6669899Abstract: A ductile particle-reinforced amorphous matrix composite characterized in that ductile powder is dispersed into amorphous matrix and the mixture is plastically worked to be consolidated and a method for manufacturing the same are provided. The amorphous powder includes any alloy, which can be produced in the form of amorphous structure and which is selected from the group consisting of Ni-, Ti-, Zr-, Al-, Fe-, La-, Cu- and Mg-based alloys. The method for manufacturing a ductile particle-reinforced amorphous matrix composite, the method comprising steps of preparing a mixture consisting of amorphous powder and ductile powder, obtaining a billet by compacting the mixture in a hermetically sealing condition, and plastic working the mixture by processing the billet at the temperature in the super-cooled liquid region of the amorphous alloy.Type: GrantFiled: January 25, 2002Date of Patent: December 30, 2003Assignee: Yonsei UniversityInventors: Dong Hyun Bae, Min Ha Lee, Jin Kyu Lee, Do Hyang Kim, Won Tae Kim, Daniel J. Sordelet
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Publication number: 20030140987Abstract: A ductile particle-reinforced amorphous matrix composite characterized in that ductile powder is dispersed into amorphous matrix and the mixture is plastically worked to be consolidated and a method for manufacturing the same are provided. The amorphous powder includes any alloy, which can be produced in the form of amorphous structure and which is selected from the group consisting of Ni-, Ti-, Zr-, Al-, Fe-, La-, Cu- and Mg-based alloys. The method for manufacturing a ductile particle-reinforced amorphous matrix composite, the method comprising steps of preparing a mixture consisting of amorphous powder and ductile powder, obtaining a billet by compacting the mixture in a hermetically sealing condition, and plastic working the mixture by processing the billet at the temperature in the super-cooled liquid region of the amorphous alloy.Type: ApplicationFiled: January 25, 2002Publication date: July 31, 2003Inventors: Dong Hyun Bae, Jin Kyu Lee, Do Hyang Kim, Won Tae Kim, Daniel J. Sordelet, Min Ha Lee
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Publication number: 20030029526Abstract: Disclosed is a quasicrystalline phase-reinforced Mg-based metallic alloy with high warm and hot formability, and making method thereof. The metallic alloy comprises a composition of Mg-1˜10 at % Zn-0.1˜3 at % Y, in which a two-phase region consisting of a quasicrystalline phase and a magnesium-based solid solution phase exists. Constituting a matrix structure, the Mg-based solid solution phase (&agr;-Mg) is formed as a primary solid phase upon solidification. The quasicrystalline phase serves as a second phase and forms, together with the Mg-based solid solution phase, a eutectic phase, thereby reinforcing the matrix. The materials obtained through the hot rolling or extrusion of the cast alloy have an increased volume % of the second phase and thus show significantly increased strength.Type: ApplicationFiled: September 3, 2002Publication date: February 13, 2003Inventors: Do Hyang Kim, Won Tae Kim, Dong Hyun Bae, Eun Soo Park, Seong Hoon Yi
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Patent number: 6471797Abstract: Disclosed is a quasicrystalline phase-reinforced Mg-based metallic alloy with high warm and hot formability, and making method thereof. The metallic alloy comprises a composition of Mg—1˜10 at % Zn—0.1˜3 at % Y, in which a two-phase region consisting of a quascrystalline phase and a magnesium-based solid solution phase exists. Constituting a matrix structure, the Mg-based solid solution phase (&agr;—Mg) is formed as a primary solid phase upon solidification. The quasicrystalline phase serves as a second phase and forms, together with the Mg-based solid solution phase, a eutectic phase, thereby reinforcing the matrix. The materials obtained through the hot rolling or extrusion of the cast alloy have an increased volume % of the second phase and thus show significantly increased strength.Type: GrantFiled: May 9, 2001Date of Patent: October 29, 2002Assignee: Yonsei UniversityInventors: Do Hyang Kim, Won Tae Kim, Dong Hyun Bae, Eun Soo Park, Seong Hoon Yi