Patents by Inventor So Hye CHO
So Hye CHO 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: 20240103362Abstract: Disclosed herein is a method of printing a nanostructure including: preparing a template substrate on which a pattern is formed; forming a replica pattern having an inverse phase of the pattern by coating a polymer thin film on an upper portion of the template substrate, adhering a thermal release tape to an upper portion of the polymer thin film, and separating the polymer thin film from the template substrate; forming a nanostructure by depositing a functional material on the replica pattern; and printing the nanostructure deposited on the replica pattern to a substrate by positioning the nanostructure on the substrate, applying heat and pressure to the nanostructure, and weakening an adhesive force between the thermal release tape and the replica pattern by the heat.Type: ApplicationFiled: September 19, 2023Publication date: March 28, 2024Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jong Min KIM, Seung Yong LEE, So Hye CHO, Ho Seong JANG, Jae Won CHOI, Chang Kyu HWANG
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Publication number: 20240091759Abstract: Disclosed herein is a method of depositing a transition metal single-atom catalyst including preparing a carbon carrier, and depositing a transition metal single-atom catalyst on the carbon carrier, in which the carbon carrier is surface-treated by an oxidation process, and wherein the deposition is carried out by an arc plasma process.Type: ApplicationFiled: September 15, 2023Publication date: March 21, 2024Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jong Min KIM, Sang Hoon KIM, Chang Kyu HWANG, Seung Yong LEE, So Hye CHO, Jae Won CHOI
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Patent number: 11680204Abstract: The present disclosure relates to down-shifting nanophosphors, a method for preparing the same, and a luminescent solar concentrator (LSC) using the same. The down-shifting nanophosphors according to an embodiment of the present disclosure include a core including NaYF4 nanocrystals doped with neodymium (Nd) and ytterbium (Yb), and further include a neodymium (Nd)-doped crystalline shell surrounding the core, or further include a NaYF4 crystalline shell surrounding the crystalline shell. Therefore, the down-shifting nanophosphors efficiently absorb near infrared rays with a wavelength range of 700-900 nm and efficiently emit near infrared rays with a wavelength range of 950-1050 nm. In addition, the down-shifting nanophosphors according to an embodiment of the present disclosure has a size of 60 nm or less, and thus can be applied to manufacture transparent LSC films with ease and can realize transparent solar cell modules having high near infrared ray shifting efficiency.Type: GrantFiled: December 15, 2020Date of Patent: June 20, 2023Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ho Seong Jang, Hyungduk Ko, Gumin Kang, So Hye Cho, Seung Yong Lee, A Ra Hong
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Publication number: 20230018835Abstract: Provided is a high-durability coloring metal member. The high-durability coloring metal member includes a metal substrate, a dielectric layer provided on the metal substrate, and an oxynitride compound layer provided on the dielectric layer. The metal member is capable of expressing vivid and various colors with a color protection layer applied on the surface of the metal member.Type: ApplicationFiled: July 6, 2022Publication date: January 19, 2023Applicant: Korea Institute of Science and TechnologyInventors: Ji Young BYUN, MD ABDUR RAHMAN, So Hye CHO, Seung Yong LEE, Hyungduk KO, Sung Lim CHOI, Dong Kyu KIM, Kwang-deok CHOI, Inuk BAEK, Yun Hee KIM
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Patent number: 11520091Abstract: Provided is a coloring pattern structure. The coloring pattern structure includes: a substrate; a light-transmitting dielectric layer formed on at least one surface of the substrate; and a composite material layer disposed on an upper surface of the light-transmitting dielectric layer and formed of a metal and a first material not having a thermodynamic solid solubility in the metal, wherein the metal included in the composite material layer has a pattern coated only on portions of the upper surface of the light-transmitting dielectric layer, and the first material is coated on the remaining area where the metal is not coated.Type: GrantFiled: November 14, 2019Date of Patent: December 6, 2022Assignee: Korea Institute of Science and TechnologyInventors: Ji Young Byun, So Hye Cho, Seung Yong Lee, Kwang-Deok Choi, In Uk Baek, Yun Hee Kim
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Patent number: 11254866Abstract: Provided is a fluoride nanophosphor using, as cores, luminescent nanoparticles expressed by Chemical Formula 1. LiEr1-x-yLyF4:Tm3+x??[Chemical Formula 1] (In Chemical Formula 1, x is a real number satisfying 0?x?0.3, y is a real number satisfying 0?y?0.8 and is selected within a range satisfying 0?x+y?0.9, and L is any one selected from the group consisting of yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), ytterbium (Yb), lutetium (Lu), and a combination thereof.Type: GrantFiled: November 14, 2019Date of Patent: February 22, 2022Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ho Seong Jang, A Ra Hong, So Hye Cho, Seung Yong Lee
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Publication number: 20210332293Abstract: The present disclosure relates to down-shifting nanophosphors, a method for preparing the same, and a luminescent solar concentrator (LSC) using the same. The down-shifting nanophosphors according to an embodiment of the present disclosure include a core including NaYF4 nanocrystals doped with neodymium (Nd) and ytterbium (Yb), and further include a neodymium (Nd)-doped crystalline shell surrounding the core, or further include a NaYF4 crystalline shell surrounding the crystalline shell. Therefore, the down-shifting nanophosphors efficiently absorb near infrared rays with a wavelength range of 700-900 nm and efficiently emit near infrared rays with a wavelength range of 950-1050 nm. In addition, the down-shifting nanophosphors according to an embodiment of the present disclosure has a size of 60 nm or less, and thus can be applied to manufacture transparent LSC films with ease and can realize transparent solar cell modules having high near infrared ray shifting efficiency.Type: ApplicationFiled: December 15, 2020Publication date: October 28, 2021Inventors: Ho Seong JANG, Hyungduk KO, Gumin KANG, So Hye CHO, Seung Yong LEE, A Ra HONG
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Patent number: 11066598Abstract: Provided is a dye-sensitized upconversion nanophosphor including a core, a first shell surrounding at least part of the core, and an organic dye bonded to a surface of the nanophosphor which has an absorption band ranging from 650 nm to 850 nm and which is excited in a near-infrared region to emit visible light. The dye-sensitized upconversion nanophosphor may be included in a display apparatus, a fluorescent contrast agent, or an anti-counterfeiting code. The organic dye may be an IR-808 dye.Type: GrantFiled: March 6, 2019Date of Patent: July 20, 2021Assignee: Korea Institute of Science and TechnologyInventors: Ho Seong Jang, Joon Soo Han, A Ra Hong, So Hye Cho, Seung Yong Lee, Hyung Duk Ko
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Patent number: 10821421Abstract: A catalyst and a catalyst composition, a method for preparing thereof, and a method for synthesizing of hydrogen peroxide using them are provided. The catalyst and the catalyst composition contains: an alloy of two elements, wherein the elements are Pt (Platinum) and Ni (Nickel). The present disclosure enables (a) replacing a high-priced palladium (Pd) catalyst with a new catalyst, (b) providing a high-active catalyst which catalyzes the direct synthesis reaction of the hydrogen peroxide.Type: GrantFiled: December 10, 2018Date of Patent: November 3, 2020Assignee: Korea Institute of Science and TechnologyInventors: Seung Yong Lee, Sang Soo Han, Hyo Bin Nam, Byung Chul Yeo, So Hye Cho, Ho Seong Jang
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Patent number: 10811552Abstract: The present invention relates to a solar cell having a wavelength converting layer formed of a polysilazane and a manufacturing method thereof to allow for low temperature sintering, to protect a wavelength converter from oxidation, degradation, and whitening, and thereby improve efficiency of the solar cell. The present invention provides for the solar cell including the wavelength converting layer which is formed by applying a coating solution containing a solvent, a polysilazane, and a wavelength converter onto a cell and an outer surface or inside of the cell, and then curing, and a manufacturing method of.Type: GrantFiled: January 28, 2015Date of Patent: October 20, 2020Assignee: Korea Institute of Science and TechnologyInventors: So Hye Cho, Il Ki Han, Doo Hyun Ko, Joon Soo Han, Bok Ryul Yoo, Seung Yong Lee, Hyungduk Ko, Joon-Suh Park
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Publication number: 20200310016Abstract: Provided is a coloring pattern structure. The coloring pattern structure includes: a substrate; a light-transmitting dielectric layer formed on at least one surface of the substrate; and a composite material layer disposed on an upper surface of the light-transmitting dielectric layer and formed of a metal and a first material not having a thermodynamic solid solubility in the metal, wherein the metal included in the composite material layer has a pattern coated only on portions of the upper surface of the light-transmitting dielectric layer, and the first material is coated on the remaining area where the metal is not coated.Type: ApplicationFiled: November 14, 2019Publication date: October 1, 2020Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ji Young BYUN, So Hye CHO, Seung Yong LEE, Kwang-deok CHOI, In Uk BAEK, Yun Hee KIM
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Publication number: 20200308484Abstract: Provided is a fluoride nanophosphor using, as cores, luminescent nanoparticles expressed by Chemical Formula 1. LiEr1-x-yLyF4:Tm3+x??[Chemical Formula 1] (In Chemical Formula 1, x is a real number satisfying 0?x?0.3, y is a real number satisfying 0?y?0.8 and is selected within a range satisfying 0?x+y?0.9, and L is any one selected from the group consisting of yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), ytterbium (Yb), lutetium (Lu), and a combination thereof.Type: ApplicationFiled: November 14, 2019Publication date: October 1, 2020Inventors: Ho Seong JANG, A Ra HONG, So Hye CHO, Seung Yong LEE
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Publication number: 20200079994Abstract: Provided is a dye-sensitized upconversion nanophosphor including a core, a first shell surrounding at least part of the core, and an organic dye bonded to a surface of the nanophosphor to have an absorption band ranging from 650 nm to 850 nm and be excited in a near-infrared region to emit visible light.Type: ApplicationFiled: March 6, 2019Publication date: March 12, 2020Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ho Seong JANG, Joon Soo HAN, A Ra HONG, So Hye CHO, Seung Yong LEE, Hyung Duk KO
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Publication number: 20190366302Abstract: A catalyst, a method for preparing thereof, and methods for synthesizing of hydrogen peroxide are disclosed. The catalyst contains an alloy of two elements. Herein, the elements are Au(Aurum) and Pt(Platinum). The method for preparing the catalyst containing the Au—Pt alloy, includes steps of: (a) obtaining a first solution by dissolving dispersing agent and reducing agent into a first solvent; and (b) synthesizing the Au—Pt alloy by adding Au precursor and Pt precursor into the first solution. Herein, the step (b) includes steps of: (b-1) obtaining a second solution by dissolving the Au precursor and the Pt precursor into a second solvent; and (b-2) synthesizing the Au—Pt alloy by adding the second solution into the first solution.Type: ApplicationFiled: December 12, 2018Publication date: December 5, 2019Inventors: Seung Yong Lee, Sang Soo Han, Hyo Bin Nam, Hong Woo Lee, So Hye Cho, Ho Seong Jang
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Publication number: 20190176133Abstract: A catalyst and a catalyst composition, a method for preparing thereof, and a method for synthesizing of hydrogen peroxide using them are provided. The catalyst and the catalyst composition contains: an alloy of two elements, wherein the elements are Pt (Platinum) and Ni (Nickel). The present disclosure enables (a) replacing a high-priced palladium (Pd) catalyst with a new catalyst, (b) providing a high-active catalyst which catalyzes the direct synthesis reaction of the hydrogen peroxide.Type: ApplicationFiled: December 10, 2018Publication date: June 13, 2019Inventors: Seung Yong Lee, Sang Soo Han, Hyo Bin Nam, Byung Chul Yeo, So Hye Cho, Ho Seong Jang
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Patent number: 10265682Abstract: Provided is a catalyst for synthesizing hydrogen peroxide as represented by the following Chemical Formula 1: RhxAg(1-x),??[Chemical Formula 1] where 0<x<1.Type: GrantFiled: October 6, 2017Date of Patent: April 23, 2019Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Seung Yong Lee, Sang Soo Han, Hyo Bin Nam, Kwan Young Lee, So Hye Cho, Ho Seong Jang
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Patent number: 10196563Abstract: There is provided a phosphor powder which includes a wavelength converting material and a silica-based inorganic substance surrounding the wavelength converting material and represented by the following Formula 1, wherein a content of a hydrosilyl group (Si—H) is greater than or equal to 10 ppm by weight, based on the total weight of the silica-based inorganic substance: wherein X represents oxygen (O) or an amine group (NH), Y represents hydrogen (H), a hydroxyl group (OH), an amino group (NH2), or an alkyl group containing heteroelements, and the heteroelements include at least one selected from the group consisting of phosphorus (P), nitrogen (N), sulfur (S), oxygen (O), and a halogen element.Type: GrantFiled: June 10, 2016Date of Patent: February 5, 2019Assignee: Korea Institute of Science and TechnologyInventors: Joon Soo Han, So Hye Cho, Bok Ryul Yoo, Seung Yong Lee
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Patent number: 10167424Abstract: Provided are a nanophosphor and a silica composite including the nanophosphor. The nanophosphor has a core/first shell/second shell structure or a core/first shell/second shell/third shell structure, wherein the core includes a Yb3+-doped fluoride-based nanoparticle, the first shell is an up-conversion shell including a Yb3+ and Tm3+-codoped fluoride-based crystalline composition, the second shell is a fluoride-based emission shell, and the third shell is an outermost crystalline shell.Type: GrantFiled: November 30, 2016Date of Patent: January 1, 2019Assignee: Korea Institute of Science and TechnologyInventors: Ho Seong Jang, Joon Soo Han, So Hye Cho, Seung Yong Lee
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Patent number: 10159758Abstract: Provided is a nanophosphor having a core/double shell structure, the nanophosphor including a upconversion core including a Yb3+, Ho3+, and Ce3+? co-doped fluoride-based nanophosphor represented by Formula 1; a first shell surrounding at least a portion of the upconversion core, and comprising a Nd3+ and Yb3+ co-doped fluoride-based crystalline composition represented by Formula 2; and a second shell surrounding at least a portion of the first shell, and having paramagnetic properties represented by Formula 3.Type: GrantFiled: January 15, 2018Date of Patent: December 25, 2018Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ho Seong Jang, So Hye Cho, Seung Yong Lee, A Ra Hong
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Patent number: 10144868Abstract: The present invention relates to a novel method for preparing a water-insoluble metal hydroxide, and a use thereof. The water-insoluble metal hydroxide of the present invention is conveniently and efficiently prepared s through the high-temperature heat treatment step two times and the washing step, and thus contains a small amount of an alkali metal and has a high crystallinity and a phase purity. The water-insoluble metal hydroxide of the present invention or metal oxide therefrom exhibits an absorption wavelength at a low wavelength range (for example, 490 nm or less) and a light emitting wavelength at a high wavelength range (for example, from 500 nm or more to less than 1,100 nm).Type: GrantFiled: November 24, 2014Date of Patent: December 4, 2018Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: So Hye Cho, Seung Yong Lee, Khan Sovann, Jong Ku Park, Sun Jin Kim, Ho Seong Jang