Patents by Inventor Dong-Ho Yoon
Dong-Ho Yoon 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: 20240131922Abstract: A variable grille apparatus can adjust a flow rate of air flowing through a grille and upgrade an opening/closing operation when adjusting the flow rate of the air, thereby improving merchantability. In addition, by diversifying the opening/closing operation of the grille such as sequentially operating or simultaneously operating the opening/closing operation of the grille, it is possible to upgrade the opening/closing operation of the grille, diversify the exterior design, and secure the flow rate of air through the optimization of the structural arrangement.Type: ApplicationFiled: September 24, 2023Publication date: April 25, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, HYUNDAI MOBIS CO., LTD.Inventors: Jin Young Yoon, Dong Eun Cha, Hong Heui Lee, Jae Sup Byun, Jang Ho Kim
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Publication number: 20240132166Abstract: An active air skirt apparatus controls an airflow flowing to a lower side of a mobility device according to a traveling state of the mobility device, thereby securing optimal aerodynamic performance. In addition, disclosed herein is an active air skirt apparatus, which stably moves a flap for controlling the airflow when a vehicle travels at high speed, thereby improving durability and reliability.Type: ApplicationFiled: March 10, 2023Publication date: April 25, 2024Inventors: Jin Young Yoon, Dong Eun Cha, Hong Heui Lee, Jae Sup Byun, Jang Ho Kim
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Publication number: 20240123817Abstract: A variable grille apparatus controls a flow rate of air circulated through the grille. Commercial properties are improved through an advanced opening and closing operation during adjustment of the air flow rate. The opening and closing operation of the grille is diversified, such as by sequential or simultaneous operation, so that the sense of operation is enhanced, an exterior design is diversified, and the air flow is secured through an optimization of the structural arrangement.Type: ApplicationFiled: July 6, 2023Publication date: April 18, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, HYUNDAI MOBIS CO., LTD.Inventors: Jin Young Yoon, Dong Eun Cha, Hong Heui Lee, Jae Sup Byun, Jang Ho Kim
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Publication number: 20240128797Abstract: Disclosed are a primary coil unit having four coils independently controllable and a pickup coil unit having four coils also independently controllable. The proposed power transfer system and the proposed power pickup system can satisfy standard compatibility and improve the efficiency of wireless power transmission. The power transfer device is compatible with various types of conventional power pickup systems and capable of expanding compatibility with a new power pickup system to be developed in future by changing the power transfer magnetic flux pattern. The power pickup device is compatible with various types of conventional power transfer systems and capable of expanding compatibility with a power transfer system to be developed in future. The system including both the power transfer device and the power pickup device is more robust against a deviation.Type: ApplicationFiled: December 20, 2023Publication date: April 18, 2024Inventors: Dong Ho CHO, Bo Yune SONG, Gu Ho JUNG, Chung Hee LEE, Ja Hyeon LEE, Uoo Yeol YOON
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Patent number: 11944958Abstract: Disclosed herein are a catalyst for hydrocracking reaction of high molecular weight components in bio-oil, a method for preparing the same and a method for bio-oil upgrading using the same. The catalyst includes a zeolite carrier; and at least one metal selected from the group consisting of nickel (Ni), ruthenium (Ru) and cerium (Ce) supported on the carrier. The catalyst promotes the hydrocracking of high molecular weight compounds contained in the bio-oil, but also inhibits the polymerization reaction of the decomposed product, thereby more effectively enhancing the hydrocracking reaction of the bio-oil.Type: GrantFiled: July 18, 2022Date of Patent: April 2, 2024Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Chunjae Yoo, Jeong-Myeong Ha, Dong Jin Suh, Jae Wook Choi, Young Hyun Yoon, Kyeongsu Kim, Chang Soo Kim, Kwang Ho Kim, Thi Lien Do
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Patent number: 11950500Abstract: The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one polycyclic aryl group, and optionally at least one hole blocking layer including an azine-based compound or a benzimidazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.Type: GrantFiled: December 21, 2019Date of Patent: April 2, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Seung Hee Yoon, In Bum Song, Jin Ho Park, Dong Hyeok Lim
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Patent number: 11936075Abstract: Disclosed are a separator for fuel cells capable of minimizing the volume of a system and the use of sealants, and a stack for fuel cells, more particularly, a stack for solid oxide fuel cells, including the same. Specifically, by adding a metal sheet having a specific shape, position and size to the separator, the stress applied to the sealant can be uniformized, and thus the oxidizing agent and fuel can be separated and electrically isolated using only a piece of sealant. Therefore, the stack for fuel cells is characterized in that there is no variation in temperature, reactant concentration, power, or the like between respective unit cells, so delamination and microcracks do not occur, the volume is minimized, and the power density per unit volume is very high.Type: GrantFiled: December 21, 2021Date of Patent: March 19, 2024Assignee: Korea Institute of Science and TechnologyInventors: Jong Ho Lee, Kyung Joong Yoon, Ji Won Son, Seong Kook Oh, Sang Hyeok Lee, Dong Hwan Kim, Min Jun Oh
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Publication number: 20240069629Abstract: A system and method for laser assisted bonding of semiconductor die. As non-limiting examples, various aspects of this disclosure provide systems and methods that enhance or control laser irradiation of a semiconductor die, for example spatially and/or temporally, to improve bonding of the semiconductor die to a substrate.Type: ApplicationFiled: August 28, 2023Publication date: February 29, 2024Inventors: Tae Ho Yoon, Yang Gyoo Jung, Min Ho Kim, Youn Seok Song, Dong Soo Ryu, Choong Hoe Kim
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Patent number: 11649544Abstract: A method for depositing a large-area graphene layer and an apparatus for continuous graphene deposition using the same are disclosed. The method can include forming a titanium (Ti) layer on a substrate by sputtering, reducing the titanium layer by spraying a reductant gas containing a hydrogen gas (H2) and a purge gas onto the titanium layer while moving in a first direction in relation to the substrate and exhausting the reductant gas and the purge gas. The method can also include forming graphene by spraying a reactant gas containing a graphene source and the purge gas onto the titanium layer while moving in a second direction opposite the first direction in relation to the substrate and exhausting the reactant gas and the purge gas.Type: GrantFiled: December 9, 2020Date of Patent: May 16, 2023Assignee: KUK-IL GRAPHENE CO., LTDInventors: Dong Ho Yoon, Chul Kyu Song, Ji Hye Han, Soon Gil Yoon, Ji Ho Eom
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Publication number: 20210172059Abstract: A method for depositing a large-area graphene layer and an apparatus for continuous graphene deposition using the same are disclosed. The method can include forming a titanium (Ti) layer on a substrate by sputtering, reducing the titanium layer by spraying a reductant gas containing a hydrogen gas (H2) and a purge gas onto the titanium layer while moving in a first direction in relation to the substrate and exhausting the reductant gas and the purge gas. The method can also include forming graphene by spraying a reactant gas containing a graphene source and the purge gas onto the titanium layer while moving in a second direction opposite the first direction in relation to the substrate and exhausting the reactant gas and the purge gas.Type: ApplicationFiled: December 9, 2020Publication date: June 10, 2021Inventors: Dong Ho Yoon, Chul Kyu Song, Ji Hye Han, Soon Gil Yoon, Ji Ho Eom
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Patent number: 8859663Abstract: The present invention relates to a calcium carbonate having a surface charge, the preparing process thereof and filler for producing a paper using the same. The present invention provides the process of preparing a calcium carbonate having a surface charge, characterized in that it comprises the following steps of: preparing a solution mixture of one or more monomer selected from the group consisting of calcium hydroxide, acrylic acid, acrylamide, or [2-(acryloyloxy)ethyl]-trimethylammonium chloride; removing dissolved gases such as oxygen and carbon dioxide in the said solution by injecting nitrogen (N2) gas; adjusting pH of the said solution; and inducing a reaction by adding polymerization initiator of a high molecule while injecting carbon dioxide to the said mixture.Type: GrantFiled: March 21, 2012Date of Patent: October 14, 2014Assignee: Hankuk Paper Mfg. Co., Ltd.Inventors: Dong Ho Yoon, Seong Dal Heo, Seung Suk Seo, In Woo Cheong
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Patent number: 8797346Abstract: A gamma correction system and method for a display device are disclosed. According to one aspect, the gamma correction system includes a display panel configured to display an image, a measuring unit configured to acquire optical characteristic information from the image displayed on the display panel, and a display panel driver configured to convert a gamma data result value obtained after performing optical compensation for at least two sample gray values among a plurality of reference luminance values into a corresponding data voltage and calculate a data voltage for the rest of the luminance values for which optical compensation is not performed.Type: GrantFiled: March 14, 2012Date of Patent: August 5, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sung-Un Park, Ji-Yun Son, Dong-Ho Yoon
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Publication number: 20130164206Abstract: The present invention relates to a calcium carbonate having a surface charge, the preparing process thereof and filler for producing a paper using the same. The present invention provides the process of preparing a calcium carbonate having a surface charge, characterized in that it comprises the following steps of: preparing a solution mixture of one or more monomer selected from the group consisting of calcium hydroxide, acrylic acid, acrylamide, or [2-(acryloyloxy)ethyl]-trimethylammonium chloride; removing dissolved gases such as oxygen and carbon dioxide in the said solution by injecting nitrogen (N2) gas; adjusting pH of the said solution; and inducing a reaction by adding polymerization initiator of a high molecule while injecting carbon dioxide to the said mixture.Type: ApplicationFiled: March 21, 2012Publication date: June 27, 2013Applicant: HANKUK PAPER MFG, CO, LTD.Inventors: Dong Ho YOON, Seoung Dal HEO, Seung Suk SEO, In Woo CHEONG
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Publication number: 20130120659Abstract: A gamma correction system and method for a display device are disclosed. According to one aspect, the gamma correction system includes a display panel configured to display an image, a measuring unit configured to acquire optical characteristic information from the image displayed on the display panel, and a display panel driver configured to convert a gamma data result value obtained after performing optical compensation for at least two sample gray values among a plurality of reference luminance values into a corresponding data voltage and calculate a data voltage for the rest of the luminance values for which optical compensation is not performed.Type: ApplicationFiled: March 14, 2012Publication date: May 16, 2013Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Sung-Un Park, Ji-Yun Son, Dong-Ho Yoon