Patents by Inventor In-Taek Jeon
In-Taek Jeon 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: 11993392Abstract: An auxiliary propulsion apparatus of an air vehicle may include an engine mounted in a fuselage of the air vehicle, a generator configured to be driven using power from the engine, a compressor configured to be driven by the engine or the generator, a battery configured to store electricity generated by the generator, an electricity distributor connected to the generator, the battery and the main propulsion apparatus and configured to distribute electricity generated by the generator to the battery and to a main propulsion apparatus, and at least one nozzle device configured to jet high-pressure gas, supplied from the compressor, to an outside of the fuselage.Type: GrantFiled: July 21, 2021Date of Patent: May 28, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Woo Suk Jung, Gwi Taek Kim, Yoon Cheol Jeon, Hyun Ki Cho
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Publication number: 20230141750Abstract: Disclosed is a method for manufacturing a fuel cell separator having minimized surface defect via surface polishing using high-pressure injection, in which surface polishing is performed using a high-pressure injection scheme in which polishing-fluid is injected at high-pressure through a polishing-fluid injection nozzle before performing vision inspection, thereby minimizing the surface defect of the fuel cell separator.Type: ApplicationFiled: November 7, 2022Publication date: May 11, 2023Inventors: Yoo Taek JEON, Byung Hak JHUNG, Won Do KIM, Heon HEO, Jae Yeol LEE
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Patent number: 10244846Abstract: A cosmetic impregnated foam manufacturing apparatus of the present disclosure includes: a fixing holder for fixing a container; a two or more multi nozzles for filling the container with liquid-state make-ups having different colors and viscosities; a pressing member pressing the impregnated foam to the container filled with the liquid-state make-ups; and a fabric placed on the impregnated foam. Accordingly, various colors and patterns are achieved by impregnating two or more liquid-state make-ups having different colors by the two or more multi nozzles and the fixing holder that is rotated and horizontally moved.Type: GrantFiled: January 15, 2016Date of Patent: April 2, 2019Assignee: CIT CO., LTD.Inventors: Jae Jin Kim, Jong Taek Jeon, Young Il Lee, Kyeong Bin Kwon
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Patent number: 10186717Abstract: Disclosed are a metal separation plate for a fuel cell stack, which includes protrusion patterns each having an air path opened in a short-side direction or protrusion patterns each having an air path of which one side is opened and the other side is closed, and can not only improve cooling performance and stack performance without a separate cooling plate mounted therein, and but also improve humidification performance of a membrane electrode assembly (MEA) by blocking moisture leaking from the inside of the closed air paths, and a fuel cell stack having the same.Type: GrantFiled: July 24, 2014Date of Patent: January 22, 2019Assignee: Hyundai Steel CompanyInventors: Ji-Young Park, Ki-Jung Kim, Yoo-Taek Jeon
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Publication number: 20160372761Abstract: Disclosed are a metal separation plate for a fuel cell stack, which includes protrusion patterns each having an air path opened in a short-side direction or protrusion patterns each having an air path of which one side is opened and the other side is closed, and can not only improve cooling performance and stack performance without a separate cooling plate mounted therein, and but also improve humidification performance of a membrane electrode assembly (MEA) by blocking moisture leaking from the inside of the closed air paths, and a fuel cell stack having the same.Type: ApplicationFiled: July 24, 2014Publication date: December 22, 2016Inventors: Ji-Young Park, Ki-Jung Kim, Yoo-Taek Jeon
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Patent number: 9425450Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MBz) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: GrantFiled: April 30, 2015Date of Patent: August 23, 2016Assignee: HYUNDAI STEEL COMPANYInventors: Yoo Taek Jeon, Kyeong Woo Chung
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Publication number: 20160207644Abstract: A cosmetic impregnated foam manufacturing apparatus of the present disclosure includes: a fixing holder for fixing a container; a two or more multi nozzles for filling the container with liquid-state make-ups having different colors and viscosities; a pressing member pressing the impregnated foam to the container filled with the liquid-state make-ups; and a fabric placed on the impregnated foam. Accordingly, various colors and patterns are achieved by impregnating two or more liquid-state make-ups having different colors by the two or more multi nozzles and the fixing holder that is rotated and horizontally moved.Type: ApplicationFiled: January 15, 2016Publication date: July 21, 2016Inventors: Jae Jin Kim, Jong Taek Jeon, Young Il Lee, Kyeong Bin Kwon
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Patent number: 9337495Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MBz) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: GrantFiled: August 28, 2014Date of Patent: May 10, 2016Assignee: HYUNDAI STEEL COMPANYInventors: Yoo Taek Jeon, Kyeong Woo Chung
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Patent number: 9337496Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MB) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: GrantFiled: April 30, 2015Date of Patent: May 10, 2016Assignee: HYUNDAI STEEL COMPANYInventors: Yoo Taek Jeon, Kyeong Woo Chung
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Patent number: 9331343Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MBz) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: GrantFiled: April 30, 2015Date of Patent: May 3, 2016Assignee: HYUNDAI STEEL COMPANYInventors: Yoo Taek Jeon, Kyeong Woo Chung
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Publication number: 20150236319Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MBz) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Inventors: Yoo Taek JEON, Kyeong Woo CHUNG
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Publication number: 20150236356Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MBz) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Inventors: Yoo Taek JEON, Kyeong Woo CHUNG
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Publication number: 20150236357Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MB) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Inventors: Yoo Taek JEON, Kyeong Woo CHUNG
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Patent number: 9070907Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MBz) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: GrantFiled: April 17, 2009Date of Patent: June 30, 2015Assignee: HYUNDAI HYSCOInventors: Yoo Taek Jeon, Kyeong Woo Chung
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Publication number: 20150125620Abstract: The present invention relates to a separator plate for a fuel cell and to a method for producing the same, and relates to an invention wherein a surface-modification layer is formed through the use of low temperature plasma processing such that it is possible to prevent the hydrophobic characteristics which occur during gasket forming and to have outstanding hydrophilic characteristics, and such that it is possible to obtain the advantageous effect of highly outstanding corrosion resistance and electrical conductivity not only initially but also even after long-term use in a fuel-cell operating environment, and also such that it is possible to maintain outstanding durability even when using a normal low-price stainless-steel sheet base material, and it is possible to reduce the unit cost of production of the separator plate for the fuel cell since surface processing can be carried out at low cost.Type: ApplicationFiled: January 13, 2015Publication date: May 7, 2015Inventors: Yoo-Taek JEON, Eun-Young KIM, Man-Bean MOON
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Publication number: 20140370415Abstract: A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MNx), a metal/metal nitride layer (M/MNx), a metal carbide layer (MCy), and a metal boride layer (MBz) (where 0.5?x?1, 0.42?y?1, 0.5?z?2).Type: ApplicationFiled: August 28, 2014Publication date: December 18, 2014Inventors: Yoo Taek JEON, Kyeong Woo CHUNG
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Patent number: 8852827Abstract: Disclosed herein is a method of manufacturing a metallic bipolar plate for fuel cells, which can maintain good corrosion resistance and contact resistance without any side effect not only initially but also after a predetermined period of time even in an environment of severe vibration as in vehicles while allowing a continuous process to provide high productivity.Type: GrantFiled: January 21, 2009Date of Patent: October 7, 2014Assignee: Hyundai HyscoInventors: Yeon Soo Jeong, Yoo Taek Jeon, Jun Ho Lee, Jong Chan Park
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Patent number: 8828258Abstract: A method for surface treatment of a stainless steel separator for a fuel cell comprises preparing a stainless steel sheet containing nickel, chrome and iron, and having a passive film on a surface of the stainless steel sheet, and dipping the stainless steel sheet into a mixed etching solution of nitric acid (HNO3) and sulfuric acid (H2SO4) at a temperature of 50-70° C. for 30 seconds to 30 minutes to selectively lower an amount of Fe in the passive film formed on the surface of the stainless steel sheet.Type: GrantFiled: July 27, 2007Date of Patent: September 9, 2014Assignee: Hyundai HyscoInventors: Yoo Taek Jeon, Yeon Soo Jeong
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Patent number: 8778566Abstract: Disclosed herein is a method for manufacturing a metal steel separator for fuel cells that has corrosion resistance and contact resistance not only at an initial stage but also after being exposed to high temperature/high humidity conditions in the fuel cell for a long period of time. The method includes preparing a stainless steel sheet as a matrix of the metal separator, forming a discontinuous coating film on the surface of the stainless steel sheet, the coating film being composed of at least one selected from gold (Au), platinum (Pt), ruthenium (Ru), iridium (Ir), ruthenium oxide (RuO2), and iridium oxide (IrO2), and heat treating the stainless steel sheet having the discontinuous coating film to form an oxide film on a portion of the stainless steel sheet on which the coating film is not formed. A metal separator for fuel cells manufactured by the method is also disclosed.Type: GrantFiled: August 20, 2010Date of Patent: July 15, 2014Assignee: Hyundai HyscoInventors: Yoo-Taek Jeon, Ki-Jung Kim
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Patent number: 8592098Abstract: Disclosed are a metal separator for fuel cells, which exhibits excellent properties in terms of corrosion resistance, electrical conductivity and durability, and a method of manufacturing the same. The metal separator for fuel cells includes a separator-shaped metal matrix and a coating layer formed on the metal matrix. The coating layer has a concentration gradient of a carbon element C and a metal element Me according to a thickness thereof such that the carbon element C becomes gradually concentrated in the coating layer with increasing distance from the metal matrix, and the metal element Me becomes gradually concentrated in the coating layer with decreasing distance from the metal matrix.Type: GrantFiled: March 21, 2011Date of Patent: November 26, 2013Assignee: Hyundai HyscoInventors: Yoo-Taek Jeon, Eun-Young Kim, Yeon-Soo Jeong, Ki-Jung Kim, Man-Been Moon