Patents by Inventor Kyu Hun Kim
Kyu Hun Kim 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: 20250042269Abstract: An embodiment power control apparatus for a fuel cell vehicle includes a first relay connected to a fuel cell stack, a second relay selectively connected to an external charger, a converter connected to the first relay and the second relay, wherein the converter is configured to convert first electric power input thereto via the first relay into first demand electric power, convert second electric power input thereto via the second relay into second demand electric power, and supply the first demand electric power or the second demand electric power to a power consumption device, and a controller configured to control the first relay, the second relay, and the converter.Type: ApplicationFiled: November 9, 2023Publication date: February 6, 2025Inventors: Beom Sik Kim, Kyu Won Jeong, Tae Woo Kim, Jae Hun Jeong, Mun Soo Chung, Sang Don Lee
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Publication number: 20250030893Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.Type: ApplicationFiled: October 4, 2024Publication date: January 23, 2025Applicant: Electronics and Telecommunications Research InstituteInventors: Jeong-Il SEO, Wook-Joong KIM, Kyu-Heon KIM, Kyeong-Ok KANG, Jin-Woo HONG, Yung-Lyul LEE, Ki-Hun HAN, Jae-Ho HUR, Dong-Gyu SIM, Seoung-Jun OH
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Publication number: 20230227696Abstract: The present disclosure is a composition for a semiconductor process applied to a polishing process of a semiconductor wafer and, more specifically, to a semiconductor process involving a polishing process of a semiconductor wafer, wherein the composition includes abrasive particles, and the zeta potential of the abrasive particles is ?50 mV to ?10 mV at a pH of 6, and the zeta potential change rate represented by Equation 1 below is 6 mV to 30 mV: [Equation 1] Zeta potential change rate (mV/pH)=|(Z6?Z5)/(p6?p5)| where p6 denotes pH 6, p5 denotes pH 5, Z6 denotes a zeta potential at the pH 6, and Z5 denotes a zeta potential at the pH 5.Type: ApplicationFiled: January 19, 2023Publication date: July 20, 2023Inventors: Seung Chul HONG, Deok Su HAN, Han Teo PARK, Hwan Chul KIM, Kyu Hun KIM, Eun Sun JOENG
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Publication number: 20230040931Abstract: Provided is a polishing composition for a semiconductor process comprising abrasive particles, the abrasive particles containing an amine-based polishing rate improver, and comprising the amine-based polishing rate improver. Provided is a polishing composition for a semiconductor process further comprising an amine-based surface modifier around the surface of the abrasive particles, wherein the sum of the content of an amine group contained in the amine-based polishing rate improver and the content of an amine group contained in the amine-based surface modifier is 0.0185% by weight or more based on the total composition weight. The polishing composition for a semiconductor process may implement the polishing rate and defect prevention performance within a target range in polishing the boron-doped polysilicon layer.Type: ApplicationFiled: July 21, 2022Publication date: February 9, 2023Inventors: Seung Chul HONG, Deok Su Han, Han Teo Park, Kyu Hun Kim, Eun Sun Joeng, Jang Kuk Kwon, Hyeong Ju Lee
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Patent number: 11454753Abstract: The optical multilayer film, which comprises a laminate in which a base layer, a primer layer, and a hard coat layer are sequentially laminated, has enhanced mechanical properties while preventing rainbow stains and a reduction in the visibility by adjusting the in-plane retardation of the base layer and the refractive indices of the respective layers. Thus, the optical component and the display device, which comprise the optical multilayer film, have excellent optical characteristics and can operate normally even in harsh environments.Type: GrantFiled: July 9, 2019Date of Patent: September 27, 2022Assignee: SKC CO., LTD.Inventors: Young Min Heo, Kyu-Hun Kim, Sechul Lee, Seungwon Lee
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Patent number: 11306183Abstract: One embodiment may provide a method for producing a polyimide film, the method comprising the steps of: polishing the surface of a casting body; producing a gel sheet by casting a precursor on the polished surface of the casting body, and drying same; and producing a polyimide film by heat-treating the gel sheet, wherein the roughness of the polished surface of the casting body is 0.1 nm to 160 nm, and when the area of the casting body onto which the precursor is casted is partitioned by 1 cm×1 cm, the area corresponding to a defect reduction region is at least 90%, and the polyimide film has a yellowness of at most 3, a haze of at most 1%, a permeability of at least 88%, a modulus of at least 5.0 GPa and a surface hardness of at least HB.Type: GrantFiled: February 5, 2018Date of Patent: April 19, 2022Assignee: SKC CO., LTD.Inventors: Sunhwan Kim, Jin Woo Lee, Dae Seong Oh, Dawoo Jeong, Kyu-Hun Kim
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Patent number: 11001039Abstract: A resin film for laminated glass, laminated glass including the resin film, and a process for manufacturing the laminated glass are disclosed. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 ?m and a maximum static friction coefficient at 20° C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35° C. is 40 to 310 ?m/N.Type: GrantFiled: November 26, 2019Date of Patent: May 11, 2021Assignee: SKC CO., LTD.Inventors: Kyu-Hun Kim, Jewon Yeon, Sung Jin Chung, Heung Sik Kim, Hyejin Kim, Hak Soo Lee
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Publication number: 20200094530Abstract: A resin film for laminated glass, laminated glass including the resin film, and a process for manufacturing the laminated glass are disclosed. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 ?m and a maximum static friction coefficient at 20° C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35° C. is 40 to 310 ?m/N.Type: ApplicationFiled: November 26, 2019Publication date: March 26, 2020Applicant: SKC CO., LTD.Inventors: Kyu-Hun Kim, Jewon Yeon, Sung Jin Chung, Heung Sik Kim, Hyejin Kim, Hak Soo Lee
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Patent number: 10562277Abstract: Embodiments relate to a resin film for laminated glass, laminated glass comprising the resin film, and a process for manufacturing the laminated glass. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 ?m and a maximum static friction coefficient at 20° C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35° C. is 40 to 310 ?m/N.Type: GrantFiled: June 14, 2018Date of Patent: February 18, 2020Assignee: SKC CO., LTD.Inventors: Kyu-Hun Kim, Jewon Yeon, Sung Jin Chung, Heung Sik Kim, Hyejin Kim, Hak Soo Lee
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Publication number: 20200012029Abstract: The optical multilayer film, which comprises a laminate in which a base layer, a primer layer, and a hard coat layer are sequentially laminated, has enhanced mechanical properties while preventing rainbow stains and a reduction in the visibility by adjusting the in-plane retardation of the base layer and the refractive indices of the respective layers. Thus, the optical component and the display device, which comprise the optical multilayer film, have excellent optical characteristics and can operate normally even in harsh environments.Type: ApplicationFiled: July 9, 2019Publication date: January 9, 2020Inventors: Young Min Heo, Kyu-Hun Kim, Sechul Lee, Seungwon Lee
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Publication number: 20190390014Abstract: One embodiment may provide a method for producing a polyimide film, the method comprising the steps of: polishing the surface of a casting body; producing a gel sheet by casting a precursor on the polished surface of the casting body, and drying same; and producing a polyimide film by heat-treating the gel sheet, wherein the roughness of the polished surface of the casting body is 0.1 nm to 160 nm, and when the area of the casting body onto which the precursor is casted is partitioned by 1 cm×1 cm, the area corresponding to a defect reduction region is at least 90%, and the polyimide film has a yellowness of at most 3, a haze of at most 1%, a permeability of at least 88%, a modulus of at least 5.0 GPa and a surface hardness of at least HB.Type: ApplicationFiled: February 5, 2018Publication date: December 26, 2019Inventors: Sunhwan KIM, Jin Woo LEE, Dae Seong OH, Dawoo JEONG, Kyu-Hun KIM
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Publication number: 20180361714Abstract: Embodiments relate to a resin film for laminated glass, laminated glass comprising the resin film, and a process for manufacturing the laminated glass. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 ?m and a maximum static friction coefficient at 20° C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35° C. is 40 to 310 ?m/N.Type: ApplicationFiled: June 14, 2018Publication date: December 20, 2018Applicant: SKC CO., LTD.Inventors: Kyu-Hun KIM, Jewon YEON, Sung Jin CHUNG, Heung Sik KIM, Hyejin KIM, Hak Soo LEE
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Publication number: 20180029335Abstract: The present disclosure relates to a resin film for laminated glass, laminated glass including the resin film, and a vehicle including the laminated glass. The resin film for laminated glass includes a resin layer having a 3-layer structure, and the resin layer is formed of a resin composition of a specific component.Type: ApplicationFiled: March 30, 2017Publication date: February 1, 2018Applicants: Hyundai Motor Company, SKC Co., Ltd.Inventors: Nak Kyoung KONG, Ki Hong LEE, Sang Young KIM, Soo Nam KIM, Seok Jae PARK, Tae Soo JUNG, Young lk CHO, Keon Soo JIN, Keun Sig LIM, Dong Hwan JANG, Jong Min PARK, Hye Jin KIM, Kyu Hun KIM, Sung Jin CHUNG, Je Won YEON
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Publication number: 20140127490Abstract: An aerogel fabricated by forming an aqueous suspension including carbon nanotubes and a surfactant, agitating the aqueous suspension, and centrifuging the agitated suspension to form a supernatant including the carbon nanotubes. The supernatant is concentrated to form a concentrated suspension including the carbon nanotubes, and a hydrogel is formed from the concentrated suspension. The hydrogen is contacted with a strong acid to form an acidic hydrogel and to remove surfactant from the hydrogel, and then neutralized. An aerogel is formed from the hydrogel. The aerogel may consist essentially of carbon nanotubes. A composite may be formed from the hydrogel or the aerogel by infiltrating the hydrogel or the aerogel with a polymeric material and curing or pyrolyzing the polymeric material. The composite may be electrically conductive, transparent, flexible, superelastic, or any combination thereof. A device, such as a flexible conductor, sensor, or electrode may include the aerogel or the composite.Type: ApplicationFiled: April 4, 2012Publication date: May 8, 2014Applicant: CARNEGIE MELLON UNIVERSITYInventors: Mohammad F. Islam, Kyu Hun Kim, Youngseok Oh, Ilha Lee