Patents by Inventor Jae Hyeok Shim
Jae Hyeok Shim 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: 11714036Abstract: Provided is an apparatus for evaluating high-temperature creep behavior of metals, the apparatus including a chamber configured to fix a metal sample in an inner space sealed from an external environment, and including, at a lower portion, a metal tube stretchable in a length direction by a pressure of a gas, wherein the apparatus is configured in such a manner that a load received by the chamber in the length direction due to the pressure of the gas injected into the chamber is applied to the metal sample.Type: GrantFiled: November 4, 2020Date of Patent: August 1, 2023Assignee: Korea Institute of Science and TechnologyInventors: Jin-Yoo Suh, Han-Jin Kim, Young Whan Cho, Woo Sang Jung, Jae-Hyeok Shim, Dong-Ik Kim, Young-Su Lee, Jihyun Hong
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Patent number: 11549164Abstract: Provided is a hydrogen storage alloy including a ternary alloy of titanium (Ti), iron (Fe), and vanadium (V), wherein V sites in the ternary alloy correspond to some of Ti sites in a binary TiFe alloy including Ti and Fe, and some of Fe sites in the binary TiFe alloy.Type: GrantFiled: December 22, 2020Date of Patent: January 10, 2023Assignee: Korea Institute of Science and TechnologyInventors: Young-Su Lee, Young Whan Cho, Jae-Hyeok Shim, Jin-Yoo Suh, Jihyun Hong, Jee Yun Jung, June Hyung Kim, Mohammad Faisal
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Publication number: 20220127703Abstract: Provided is a hydrogen storage alloy including a ternary alloy of titanium (Ti), iron (Fe), and vanadium (V), wherein V sites in the ternary alloy correspond to some of Ti sites in a binary TiFe alloy including Ti and Fe, and some of Fe sites in the binary TiFe alloy.Type: ApplicationFiled: December 22, 2020Publication date: April 28, 2022Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Young-Su LEE, Young Whan CHO, Jae-Hyeok SHIM, Jin-Yoo SUH, Jihyun HONG, Jee Yun JUNG, June Hyung KIM, Mohammad FAISAL
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Publication number: 20210140862Abstract: Provided is an apparatus for evaluating high-temperature creep behavior of metals, the apparatus including a chamber configured to fix a metal sample in an inner space sealed from an external environment, and including, at a lower portion, a metal tube stretchable in a length direction by a pressure of a gas, wherein the apparatus is configured in such a manner that a load received by the chamber in the length direction due to the pressure of the gas injected into the chamber is applied to the metal sample.Type: ApplicationFiled: November 4, 2020Publication date: May 13, 2021Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jin-Yoo SUH, Han-Jin KIM, Young Whan CHO, Woo Sang JUNG, Jae-Hyeok SHIM, Dong-Ik KIM, Young-Su LEE, Jihyun HONG
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Patent number: 10793476Abstract: A method of preparing cerium boride powder, according to the present invention, includes a first step for generating mixed powder by mixing at least one selected from among cerium chloride (CeCl3) powder and cerium oxide (CeO2) powder, at least one selected from among magnesium hydride (MgH2) powder and magnesium (Mg) powder, and boron oxide (B2O3) powder, a second step for generating composite powder including cerium boride (CexBy) and at least one selected from among magnesium oxide (MgO) and magnesium chloride (MgCl2), by causing reaction in the mixed powder at room temperature based on a ball milling process, and a third step for selectively depositing cerium boride powder by dispersing the composite powder in a solution.Type: GrantFiled: November 23, 2018Date of Patent: October 6, 2020Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jae Hyeok Shim, Tae Jun Ha, Jin Yoo Suh
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Patent number: 10689736Abstract: An ultra-high-strength spring steel for an engine valve spring steel comprises, by weight: 0.5-0.7% of carbon (C), 1.3-2.3% of silicon (Si), 0.6-1.2% of manganese (Mn), 0.6-1.2% of chrome (Cr), 0.1-0.5% of molybdenum (Mo), 0.05-0.8% of nickel (Ni), 0.05-0.5% of vanadium (V), 0.05-0.5% of niobium (Nb), 0.05-0.3% of titanium (Ti), 0.001-0.01% of boron (B), 0.01-0.52% of tungsten (W), 0.3% or less (0% exclusive) of copper (Cu), 0.3% or less (0% exclusive) of aluminum (Al), 0.03% or less (0% exclusive) of nitrogen (N), 0.003% or less (0% exclusive) of oxygen (O), and a remainder of Fe and other inevitable impurities, based on 100% by weight of the ultra-high-strength spring steel.Type: GrantFiled: April 26, 2016Date of Patent: June 23, 2020Assignees: Hyundai Motor Company, Hyundai Steel Company, Korea Institute of Science and TechnologyInventors: Sung Chul Cha, Bong Lae Jo, Sang Min Song, Jae Hyeok Shim
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Publication number: 20200062655Abstract: A method of preparing cerium boride powder, according to the present invention, includes a first step for generating mixed powder by mixing at least one selected from among cerium chloride (CeCl3) powder and cerium oxide (CeO2) powder, at least one selected from among magnesium hydride (MgH2) powder and magnesium (Mg) powder, and boron oxide (B2O3) powder, a second step for generating composite powder including cerium boride (CexBy) and at least one selected from among magnesium oxide (MgO) and magnesium chloride (MgCl2), by causing reaction in the mixed powder at room temperature based on a ball milling process, and a third step for selectively depositing cerium boride powder by dispersing the composite powder in a solution.Type: ApplicationFiled: November 23, 2018Publication date: February 27, 2020Inventors: Jae Hyeok SHIM, Tae Jun HA, Jin Yoo SUH
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Publication number: 20170362688Abstract: A high-strength spring steel coil spring of a vehicle suspension, having excellent corrosion resistance, may include 0.4 to 0.9 wt % of C, 0.9 to 2.3 wt % of Si, 0.5 to 1.2 wt % of Mn, 0.6 to 1.5 wt % of Cr, 0.01 to 0.5 wt % of Mo, 0.01 to 0.9 wt % of Ni, 0.5 wt % or less (excluding 0 wt %) of V, 0.5 wt % or less (excluding 0 wt %) of Nb, 0.3 wt % or less (excluding 0 wt %) of Ti, 1.0 wt % or less (excluding 0 wt %) of Co, 0.1 wt % or less (excluding 0 wt %) of B, 0.3 wt % or less (excluding 0 wt %) of W, 0.3 wt % or less (excluding 0 wt %) of Cu, 0.3 wt % or less (excluding 0 wt %) of Al, 0.03 wt % or less (excluding 0 wt %) of N, 0.003 wt % or less (excluding 0 wt %) of O, and a remainder of Fe and inevitable impurities.Type: ApplicationFiled: November 7, 2016Publication date: December 21, 2017Applicant: Hyundai Motor CompanyInventors: Sung Chul CHA, Seung Hyun HONG, Bong Lae JO, Myung Yeon KIM, Jae Hyeok SHIM, Ji Hye PARK
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Publication number: 20170159161Abstract: An ultra-high-strength spring steel for an engine valve spring steel comprises, by weight: 0.5-0.7% of carbon (C), 1.3-2.3% of silicon (Si), 0.6-1.2% of manganese (Mn), 0.6-1.2% of chrome (Cr), 0.1-0.5% of molybdenum (Mo), 0.05-0.8% of nickel (Ni), 0.05-0.5% of vanadium (V), 0.05-0.5% of niobium (Nb), 0.05-0.3% of titanium (Ti), 0.001-0.01% of boron (B), 0.01-0.52% of tungsten (W), 0.3% or less (0% exclusive) of copper (Cu), 0.3% or less (0% exclusive) of aluminum (Al), 0.03% or less (0% exclusive) of nitrogen (N), 0.003% or less (0% exclusive) of oxygen (O), and a remainder of Fe and other inevitable impurities, based on 100% by weight of the ultra-high-strength spring steel.Type: ApplicationFiled: April 26, 2016Publication date: June 8, 2017Inventors: Sung Chul CHA, Bong Lae JO, Sang Min SONG, Jae Hyeok SHIM
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Patent number: 9537158Abstract: An oxidation-resistant ferritic stainless steel including a ferritic stainless steel base material, and a Cu-containing spinel-structured oxide.Type: GrantFiled: November 27, 2012Date of Patent: January 3, 2017Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dong-Ik Kim, Byung Kyu Kim, Ju Heon Kim, Young-Su Lee, In Suk Choi, Jin-Yoo Suh, Jae-Hyeok Shim, Woo Sang Jung, Young Whan Cho
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Publication number: 20140140920Abstract: A vanadium-based hydrogen permeation alloy for a membrane, a method of manufacturing the same, and a method of using a membrane including the same are provided. The vanadium-based hydrogen permeation alloy for a membrane includes nickel (Ni) at more than 0 atm % and 5 atm % or less, iron (Fe) at 5 atm % to 15 atm %, yttrium (Y) at more than 0 atm % and 1 atm % or less, and a remainder of vanadium and impurities.Type: ApplicationFiled: November 19, 2013Publication date: May 22, 2014Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jin-Yoo SUH, Ja-ryeong KIM, Eric FLEURY, Young-Su LEE, In-Suk CHOI, Young-Whan CHO, Dong-Ik KIM, Jae-Hyeok SHIM
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Publication number: 20130040220Abstract: An oxidation-resistant ferritic stainless steel comprising: a ferritic stainless steel comprising Cr, wherein a {110} grain orientation fraction of a surface of the ferritic stainless steel as measured using electron back scattered diffraction pattern (EBSD) is about 5% or more; and a chromium oxide layer formed on the surface of the ferritic stainless steel is provided.Type: ApplicationFiled: September 8, 2011Publication date: February 14, 2013Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dong-Ik KIM, Young Whan CHO, Jae Pyoung AHN, Woo Sang JUNG, Jae-Hyeok SHIM, Jin-Yoo SUH, In Suk CHOI, Young-Su LEE, Ju heon KIM
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Patent number: 8221714Abstract: Nano-sized titanium nitride powder can be prepared by a simple process comprising subjecting mixed powder of titanium trichloride and lithium nitride to high-energy ball milling using a plurality of balls in an airtight reactor vessel under an inert gas atmosphere to form composite powder, and recovering the titanium nitride powder therefrom.Type: GrantFiled: September 12, 2008Date of Patent: July 17, 2012Assignee: Korea Institute of Science and TechnologyInventors: Jae-Hyeok Shim, Ji-Woo Kim, Young-Whan Cho, Woo-Sang Jung, Dong-Ik Kim, Seung-Cheol Lee
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Publication number: 20120134874Abstract: Disclosed is an aluminum casting material including aluminum, silicon, titanium and boron, particularly 81-93 wt % of aluminum, 5-13 wt % of silicon, 1-3 wt % of titanium and 1-3 wt % of boron. The aluminum casting material has superior elasticity compared to that of a conventional aluminum alloy, even without employing a material of high cost such as carbon nanotube (CNT). While the application of the conventional aluminum alloy is largely restricted to a low pressure casting process, the aluminum material of the present invention can be applied to all common casting processes including a high pressure casting.Type: ApplicationFiled: February 14, 2011Publication date: May 31, 2012Applicants: HYUNDAI MOTOR COMPANY, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, KIA MOTORS CORPORATIONInventors: Hoon Mo Park, Jae Hyeok Shim, Jin Yoo Seo, Young Su Lee
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Publication number: 20120018054Abstract: Provided are a stainless steel having excellent high-temperature strength and a method of manufacturing the same, and more particularly, an austenitic stainless steel having excellent high-temperature and creep strength as well as excellent corrosion resistance able to be used in high-temperature corrosive environments such as power plants and a method of manufacturing the same. The stainless steel of the present invention may have a precipitation index of 1.5 to 2.5.Type: ApplicationFiled: March 8, 2010Publication date: January 26, 2012Inventors: Seung-Cheol Lee, Dae-Bum Park, Woo-Sang Jung, Dong-Ik Kim, Jae-Hyeok Shim, Young-Su Lee, Deong-Ryung Kim, Dong-Hee Lee
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Patent number: 7871537Abstract: A method for fabricating a magnesium-based hydrogen storage material according to the present invention comprises a) forming a mixture of a magnesium hydride powder and a transition metal halide powder, b) adding the mixture and balls into a vessel, c) filling the vessel with an inert gas or hydrogen, and d) subjecting the mixture to high energy ball milling.Type: GrantFiled: November 14, 2007Date of Patent: January 18, 2011Assignee: Korea Institute of Science and TechnologyInventors: Jae-Hyeok Shim, Seon-Ah Jin, Young-Whan Cho
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Patent number: 7771649Abstract: Disclosed herein is a method of producing an ultrafine crystalline TiN/TiB2 composite cermet. In the method, titanium nitride (TiN)/titanium boride (TiB2)/stainless steel composite nanopowder is produced through a reaction milling process using titanium (Ti), boron nitride (BN), and stainless steel powders as raw material powders, and the resulting composite nanopowder is liquid-phase sintered. The method comprises a first step of mixing titanium powder and boron nitride powder at a molar ratio of 3:2, a second step of mixing 5-60 wt % stainless steel powder and the powder mixture, a third step of feeding the powder mixture along with a ball having a predetermined diameter into a jar and conducting a high energy ball milling process to produce titanium nitride/titanium boride/stainless steel composite nanopowder, and a fourth step of shaping and sintering the resulting composite nanopowder.Type: GrantFiled: November 19, 2007Date of Patent: August 10, 2010Assignee: Korea Institute of Science and TechnologyInventors: Jae Hyeok Shim, Ji Woo Kim, Young Whan Cho
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Publication number: 20090226723Abstract: Nano-sized titanium nitride powder can be prepared by a simple process comprising subjecting mixed powder of titanium trichloride and lithium nitride to high-energy ball milling using a plurality of balls in an airtight reactor vessel under an inert gas atmosphere to form composite powder, and recovering the titanium nitride powder therefrom.Type: ApplicationFiled: September 12, 2008Publication date: September 10, 2009Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jae-Hyeok SHIM, Ji-Woo KIM, Young-Whan CHO, Woo-Sang JUNG, Dong-Ik KIM, Seung-Cheol LEE
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Patent number: 7541013Abstract: The present invention relates to a method for manufacturing a transition metal boride powder. The method for manufacturing a transition metal boride powder includes: i) manufacturing a mixed powder by mixing a transition metal halogenide powder and an alkali metal borohydride powder; ii) charging the mixed powder and a plurality of balls into a reaction vessel; iii) charging an inert gas into the reaction vessel and sealing the reaction vessel; iv) high energy ball milling the mixed powder and manufacturing a composite powder containing a transition metal boride and an alkali metal halogenide; v) washing the composite powder in water, dissolving the alkali metal halogenide in the water and filtering the transition metal borides; and vi) drying the filtered transition metal boride and collecting the transition metal boride powder.Type: GrantFiled: March 21, 2008Date of Patent: June 2, 2009Assignee: Korea Institute of Science and TechnologyInventors: Jae-Hyeok Shim, Ji-Woo Kim, Young-Whan Cho
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Publication number: 20090129962Abstract: Disclosed herein is a method of producing an ultrafine crystalline TiN/TiB2 composite cermet. In the method, titanium nitride (TiN)/titanium boride (TiB2)/stainless steel composite nanopowder is produced through a reaction milling process using titanium (Ti), boron nitride (BN), and stainless steel powders as raw material powders, and the resulting composite nanopowder is liquid-phase sintered. The method comprises a first step of mixing titanium powder and boron nitride powder at a molar ratio of 3:2, a second step of mixing 5-60 wt % stainless steel powder and the powder mixture, a third step of feeding the powder mixture along with a ball having a predetermined diameter into a jar and conducting a high energy ball milling process to produce titanium nitride/titanium boride/stainless steel composite nanopowder, and a fourth step of shaping and sintering the resulting composite nanopowder.Type: ApplicationFiled: November 19, 2007Publication date: May 21, 2009Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: JAE HYEOK SHIM, JI WOO KIM, YOUNG WHAN CHO