Patents by Inventor Jeong-Ju Kim
Jeong-Ju 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: 20240229652Abstract: The present invention relates to a gas turbine blade having a shelf squealer tip, the gas turbine blade including an airfoil-shaped blade housing, and a squealer tip extending from an edge portion of a tip surface that is an end surface of the blade housing, in which the squealer tip is formed only on a part of the edge portion of the tip surface. According to the present invention, it is possible to maximize film-cooling performance on the tip surface and additionally reduce an aerodynamic loss by suppressing high-temperature main flow reattachment and swirl flow generation on the tip surface.Type: ApplicationFiled: May 4, 2022Publication date: July 11, 2024Inventors: Jeong-Woo KIM, Hyung-Hee CHO, Joo-Hyoung LEE, Min-Ho BANG, Jeong-Ju KIM, Seung-Yeong CHOI, Tae-Hyun KIM, Hee-Seung PARK
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Publication number: 20240141793Abstract: An airfoil cooling structure, an airfoil having the airfoil cooling structure, and a turbine blade/vane element including the airfoil are disclosed. The airfoil cooling structure includes a cooling path formed inside the airfoil and having a first surface and a second surface opposite to the first surface, and an additive manufactured (AM) feature disposed in the cooling path, manufactured by additive manufacturing, and including a plurality of column parts intersecting with each other so as to abut against the first surface and the second surface.Type: ApplicationFiled: July 25, 2023Publication date: May 2, 2024Inventors: Jeong Ju KIM, Ki Don LEE
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Patent number: 11965428Abstract: An airfoil cooling structure, an airfoil having the airfoil cooling structure, and a turbine blade/vane element including the airfoil are disclosed. The airfoil cooling structure includes a cooling path formed inside the airfoil and having a first surface and a second surface opposite to the first surface, and an additive manufactured (AM) feature disposed in the cooling path, manufactured by additive manufacturing, and including a plurality of column parts intersecting with each other so as to abut against the first surface and the second surface.Type: GrantFiled: July 25, 2023Date of Patent: April 23, 2024Assignee: DOOSAN ENERBILITY CO., LTD.Inventors: Jeong Ju Kim, Ki Don Lee
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Publication number: 20240034646Abstract: Provided is a UV reaction apparatus for treating waste liquid caused by system decontamination in a nuclear power plant. The UV reaction apparatus comprises a UV irradiation unit for irradiating UV light as a bar-shaped body; and a transit unit accommodating the UV irradiation unit therein, and for passing organic waste liquid to be irradiated with the UV light, wherein the transit unit comprises, an input unit, into which the organic waste liquid is input a discharge unit, through which the organic waste liquid is discharged, and an intermediate unit located between the input unit and the discharge unit, and in which the UV irradiation unit is located.Type: ApplicationFiled: March 4, 2022Publication date: February 1, 2024Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTDInventors: Cho Rong KIM, Hak Soo KIM, Jeong Ju KIM, Sang Ho LEE, Eun Hee HONG, Ji Eun PARK, Ka Hee JEONG
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Publication number: 20240029908Abstract: Provided is a device for monitoring degradation of wastewater from nuclear power plant decontamination. The device for monitoring degradation of wastewater from nuclear power plant decontamination comprises a UV reactor connected to a first flow path and for UV-treating introduced wastewater; a wastewater degradation flow path for supplying the wastewater discharged from the UV reactor to the first flow path; a wastewater degradation detecting unit for analyzing components of the wastewater supplied from the wastewater degradation flow path and detecting whether a set condition is satisfied; and a purification flow path for purifying and supplying the wastewater supplied from the UV reactor to the first flow path when the set condition is satisfied.Type: ApplicationFiled: March 4, 2022Publication date: January 25, 2024Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTDInventors: Hak Soo KIM, Cho Rong KIM, Jeong Ju KIM, Jin Soo CHOI, Kyung Hee LEE
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Patent number: 11788418Abstract: Provided is a gas turbine vane and blade assembly in which lattice structures are installed between an impingement plate and an effusion plate. The gas turbine vane and blade assembly is capable of enhancing cooling efficiency in an impingement/effusion cooling technique. In addition, the gas turbine vane and blade assembly can be manufactured using an additive manufacturing technique, and the lattice structures are capable of replacing supports that are used during an additive manufacturing process, and improving not only structural rigidity and stability but also cooling performance.Type: GrantFiled: May 12, 2022Date of Patent: October 17, 2023Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyung Hee Cho, Ho Seop Song, Minho Bang, Heeseung Park, Taehyun Kim, Seungyeong Choi, Jeong Ju Kim
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Publication number: 20230016532Abstract: Provided is a gas turbine vane and blade assembly in which lattice structures are installed between an impingement plate and an effusion plate. The gas turbine vane and blade assembly is capable of enhancing cooling efficiency in an impingement/effusion cooling technique. In addition, the gas turbine vane and blade assembly can be manufactured using an additive manufacturing technique, and the lattice structures are capable of replacing supports that are used during an additive manufacturing process, and improving not only structural rigidity and stability but also cooling performance.Type: ApplicationFiled: May 12, 2022Publication date: January 19, 2023Inventors: Hyung Hee Cho, Ho Seop Song, Minho Bang, Heeseung Park, Taehyun Kim, Seungyeong Choi, Jeong Ju Kim
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Publication number: 20220127964Abstract: A cooling structure for a trailing edge of a turbine blade is provided. The cooling structure for the trailing edge of the turbine blade comprising an airfoil shaped blade part including a leading edge, a trailing edge, a pressure surface and a suction surface connecting the leading edge and the trailing edge, and a cavity channel formed in the blade part and through which a cooling fluid flows, the cooling structure including slots and lands arranged alternately on the trailing edge along a span direction of the pressure surface by cutting a portion of the pressure surface, the slots communicating with the cavity channel and defined by adjacent lands where the pressure surface remains, wherein a pin-fin structure is disposed in the cavity channel on an upstream side of the slot, and wherein the cooling fluid is introduced through a micro-channel formed inside the pin-fin structure and is discharged through film cooling holes formed in the pressure surface.Type: ApplicationFiled: July 21, 2021Publication date: April 28, 2022Inventors: Chang Yong LEE, Hyung Hee Cho, Jeong Ju Kim, Seungyeong Choi, Hee Seung Park
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Patent number: 10983024Abstract: Provided is a semiconductor pressure sensor which includes: five connection pads having plate shapes and formed of conductive materials, respectively, and arranged in parallel with each other; and four semiconductor resistance units connecting a predetermined pair of the connection pads to each other among the connection pads and having resistance values varying in proportion to a variation of a length due to the external pressure, wherein the five connection pads include a power supply pad, a first output voltage pad, a first ground pad, a second output voltage pad, and a second ground pad.Type: GrantFiled: May 17, 2018Date of Patent: April 20, 2021Assignee: DAEYANG ELECTRIC CO., LTD.Inventors: Sang Soo Noh, Eung Ahn Lee, Sung Ho Yoo, Jeong Ju Kim, Kyoung Hun Kim
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Publication number: 20210063262Abstract: Provided is a semiconductor pressure sensor which includes: five connection pads having plate shapes and formed of conductive materials, respectively, and arranged in parallel with each other; and four semiconductor resistance units connecting a predetermined pair of the connection pads to each other among the connection pads and having resistance values varying in proportion to a variation of a length due to the external pressure, wherein the five connection pads include a power supply pad, a first output voltage pad, a first ground pad, a second output voltage pad, and a second ground pad.Type: ApplicationFiled: May 17, 2018Publication date: March 4, 2021Inventors: Sang Soo NOH, Eung Ahn LEE, Sung Ho YOO, Jeong Ju KIM, Kyoung Hun KIM
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Patent number: 7850872Abstract: Disclosed are a compound which works as electronic materials such as a molecular memory, a molecular switch, a molecular rectifier, a molecular wire, and so on, and a molecular electronic device including the same. The compound for molecular electronic device has the structure of following Formula 1, (MnRM)n??<Formula 1> wherein, R is a single molecule having an electrical conductivity, M is independently a repeating unit constituting a polymer having an electrical conductivity, and n is independently an integer ranging from 100 to 500.Type: GrantFiled: September 27, 2007Date of Patent: December 14, 2010Assignee: Dongjin Semichem Co., Ltd.Inventors: Gyou-Jin Cho, Jeong-Ju Kim, Eun-Jung Choi, Nam-Young Kim, Chan-Seok Park, Hoe-Taek Yang
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Publication number: 20080087887Abstract: Disclosed are a compound which works as electronic materials such as a molecular memory, a molecular switch, a molecular rectifier, a molecular wire, and so on, and a molecular electronic device including the same. The compound for molecular electronic device has the structure of following Formula 1, (MnRM)n??<Formula 1> wherein, R is a single molecule having an electrical conductivity, M is independently a repeating unit constituting a polymer having an electrical conductivity, and n is independently an integer ranging from 100 to 500.Type: ApplicationFiled: September 27, 2007Publication date: April 17, 2008Applicant: DONGJIN SEMICHEM CO., LTD.Inventors: Gyou-Jin Cho, Jeong-Ju Kim, Eun-Jung Choi, Nam-Young Kim, Chan-Seok Park, Hoe-Taek Yang
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Patent number: 6596649Abstract: A method and apparatus for uniformly supplying a gas into a chamber through a dispersion head. The gas is introduced through an inlet of the dispersion head, and flows in a flow direction toward a first diffuser arranged in the dispersion head. The gas is diffused a first time within the dispersion head by dispersing the gas along side directions different than the flow direction by contacting the gas and the first diffuser. A portion of the first diffused gas is guided through an outlet of the dispersion head and toward a work piece arranged in a chamber. A remaining portion of the first diffused gas is diffused a second time by contacting the gas and a second diffuser disposed between the first diffuser and the work piece, by dispersing the gas along side directions different than the flow direction. A portion of the twice diffused gas is guided through the outlet of the dispersion head and toward the work piece arranged in the chamber.Type: GrantFiled: November 22, 2002Date of Patent: July 22, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Jeong-Ju Kim
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Publication number: 20030075527Abstract: A method and apparatus for uniformly supplying a gas into a chamber through a dispersion head. The gas is introduced through an inlet of the dispersion head, and flows in a flow direction toward a first diffuser arranged in the dispersion head. The gas is diffused a first time within the dispersion head by dispersing the gas along side directions different than the flow direction by contacting the gas and the first diffuser. A portion of the first diffused gas is guided through an outlet of the dispersion head and toward a work piece arranged in a chamber. A remaining portion of the first diffused gas is diffused a second time by contacting the gas and a second diffuser disposed between the first diffuser and the work piece, by dispersing the gas along side directions different than the flow direction. A portion of the twice diffused gas is guided through the outlet of the dispersion head and toward the work piece arranged in the chamber.Type: ApplicationFiled: November 22, 2002Publication date: April 24, 2003Inventor: Jeong-Ju Kim
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Patent number: 6506255Abstract: A method and apparatus for uniformly supplying a gas into a chamber through a dispersion head. The gas is introduced through an inlet of the dispersion head, and flows in a flow direction toward a first diffuser arranged in the dispersion head. The gas is diffused a first time within the dispersion head by dispersing the gas along side directions different than the flow direction by contacting the gas and the first diffuser. A portion of the first diffused gas is guided through an outlet of the dispersion head and toward a work piece arranged in a chamber. A remaining portion of the first diffused gas is diffused a second time by contacting the gas and a second diffuser disposed between the first diffuser and the work piece, by dispersing the gas along side directions different than the flow direction. A portion of the twice diffused gas is guided through the outlet of the dispersion head and toward the work piece arranged in the chamber.Type: GrantFiled: January 31, 2002Date of Patent: January 14, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Jeong-Ju Kim
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Publication number: 20020104617Abstract: A method and apparatus for uniformly supplying a gas into a chamber through a dispersion head. The gas is introduced through an inlet of the dispersion head, and flows in a flow direction toward a first diffuser arranged in the dispersion head. The gas is diffused a first time within the dispersion head by dispersing the gas along side directions different than the flow direction by contacting the gas and the first diffuser. A portion of the first diffused gas is guided through an outlet of the dispersion head and toward a work piece arranged in a chamber. A remaining portion of the first diffused gas is diffused a second time by contacting the gas and a second diffuser disposed between the first diffuser and the work piece, by dispersing the gas along side directions different than the flow direction. A portion of the twice diffused gas is guided through the outlet of the dispersion head and toward the work piece arranged in the chamber.Type: ApplicationFiled: January 31, 2002Publication date: August 8, 2002Inventor: Jeong-Ju Kim