Patents by Inventor Hyun-Min Jang
Hyun-Min Jang 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: 9570800Abstract: By providing a radiator configuration circuit and a feeding circuit each having a simple structure, a ground radiation antenna having a more simplified fabrication process as well as a remarkably reduced fabrication cost is provided herein. Additionally, a ground radiation antenna having an excellent radiation performance, even when one side of a mobile communication terminal is covered with a conductive substance, such as an LCD panel, is also provided herein.Type: GrantFiled: October 6, 2013Date of Patent: February 14, 2017Assignee: RADINA CO., LTDInventors: Hyun Min Jang, Hyeng Cheul Choi, Dong Ryeol Lee, Yang Liu, Hyung Jin Lee, Jae Kyu Yu
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Patent number: 9505616Abstract: The present invention relates to an apparatus that produces a high-purity gas of producing a high-purity gas using the apparatus. An apparatus for producing a high-purity gas according to an embodiment of the invention may include a column configured to perform a sorption-enhanced reaction for removing a reaction by-product produced through a catalyst reaction by using sorption, wherein the column is divided into a plurality of sections, and the plurality of sections have decreasing proportions of a catalyst and increasing proportions of an adsorbent from a front end towards a rear end along a reaction path, and wherein the sorption-enhanced reaction is a sorption-enhanced steam methane reforming (SE-SMR) reaction for producing hydrogen by a methane reforming reaction and removing a by-product of carbon dioxide.Type: GrantFiled: May 15, 2015Date of Patent: November 29, 2016Assignee: Korea University Research and Business FoundationInventors: Ki Bong Lee, Hyun-Min Jang, Chan-Hyun Lee
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Patent number: 9416007Abstract: The present invention relates to an apparatus that produces a high-purity gas and to a method of producing a high-purity gas using the apparatus. An apparatus for producing a high-purity gas according to an embodiment of the invention may include a column configured to perform a sorption-enhanced reaction for removing a reaction by-product produced through a catalyst reaction by using sorption, where the column is divided into a multiple number of sections, and the multiple sections have decreasing proportions of a catalyst and increasing proportions of an adsorbent from a front end towards a rear end along a reaction path. According to an embodiment of the invention, a multi-section column may be applied to obtain an increased amount of gas production compared with the conventional sorption-enhanced reaction, even with the same amounts of catalyst and adsorbent.Type: GrantFiled: December 22, 2014Date of Patent: August 16, 2016Assignee: Korea University Research and Business FoundationInventors: Ki Bong Lee, Hyun-Min Jang, Chan-Hyun Lee
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Publication number: 20150284247Abstract: The present invention relates to an apparatus that produces a high-purity gas of producing a high-purity gas using the apparatus. An apparatus for producing a high-purity gas according to an embodiment of the invention may include a column configured to perform a sorption-enhanced reaction for removing a reaction by-product produced through a catalyst reaction by using sorption, wherein the column is divided into a plurality of sections, and the plurality of sections have decreasing proportions of a catalyst and increasing proportions of an adsorbent from a front end towards a rear end along a reaction path, and wherein the sorption-enhanced reaction is a sorption-enhanced steam methane reforming (SE-SMR) reaction for producing hydrogen by a methane reforming reaction and removing a by-product of carbon dioxide.Type: ApplicationFiled: May 15, 2015Publication date: October 8, 2015Inventors: Ki Bong Lee, Hyun-Min Jang, Chan-Hyun Lee
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Publication number: 20150171490Abstract: Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising heat-absorbing inorganic particles and a binder polymer, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of antimony-containing compounds, metal hydroxides, guanidine-based compounds, born-containing compounds and zinc tartrate compounds. A separator using the heat-absorbing inorganic particles as a component for forming or coating the separator, and an electrochemical device including the electrode and/or the separator are also disclosed. The separator using the heat-absorbing inorganic particles as a component for forming or coating the separator can ensure excellent thermal safety and minimizes degradation of the quality of a battery.Type: ApplicationFiled: February 23, 2015Publication date: June 18, 2015Applicant: LG CHEM, LTD.Inventors: Seok-Koo Kim, Hyun-Min Jang, Sang-Young Lee, Jang-Hyuk Hong
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Patent number: 9017878Abstract: Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising heat-absorbing inorganic particles and a binder polymer, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of antimony-containing compounds, metal hydroxides, guanidine-based compounds, boron-containing compounds and zinc tartrate compounds. A separator using the heat-absorbing inorganic particles as a component for forming or coating the separator, and an electrochemical device including the electrode and/or the separator are also disclosed. The separator using the heat-absorbing inorganic particles as a component for forming or coating the separator can ensure excellent thermal safety and minimizes degradation of the quality of a battery.Type: GrantFiled: February 16, 2007Date of Patent: April 28, 2015Assignee: LG Chem, Ltd.Inventors: Seok-Koo Kim, Hyun-Min Jang, Sang-Young Lee, Jang-Hyuk Hong
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Publication number: 20150108407Abstract: The present invention relates to an apparatus that produces a high-purity gas and to a method of producing a high-purity gas using the apparatus. An apparatus for producing a high-purity gas according to an embodiment of the invention may include a column configured to perform a sorption-enhanced reaction for removing a reaction by-product produced through a catalyst reaction by using sorption, where the column is divided into a multiple number of sections, and the multiple sections have decreasing proportions of a catalyst and increasing proportions of an adsorbent from a front end towards a rear end along a reaction path. According to an embodiment of the invention, a multi-section column may be applied to obtain an increased amount of gas production compared with the conventional sorption-enhanced reaction, even with the same amounts of catalyst and adsorbent.Type: ApplicationFiled: December 22, 2014Publication date: April 23, 2015Inventors: Ki Bong Lee, Hyun-Min Jang, Chan-Hyun Lee
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Patent number: 8822073Abstract: Disclosed is an electrode comprising an organic/inorganic composite introduced onto either surface or both surfaces thereof, the organic/inorganic composite comprising inorganic particle or aggregates thereof having a unique spectrum or color pattern according to a predetermined rule, and a polymer capable of interconnecting and fixing the inorganic particles. Also, disclosed are an electrochemical device comprising the above electrode, and a method for identifying the origin or kind of an electrode itself or an electrochemical device comprising the same by using the above electrode.Type: GrantFiled: July 18, 2007Date of Patent: September 2, 2014Assignee: LG Chem, Ltd.Inventors: Sang-Young Lee, Dae-Jong Seo, Dong-Myung Kim, Seok-Koo Kim, Hyun-Min Jang
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Patent number: 8741470Abstract: An electrochemical device includes a plurality of unit cells, each having a first separator and a cathode and an anode positioned at both sides of the first separator, and a continuous single second separator interposed between adjacent unit cells in correspondence with each other in a laminated pattern and arranged to surround each unit cell. The first separator includes a heat-resisting porous substrate having a melt point of 200° C. or above and a first porous coating layer formed on at least one surface of the heat-resisting porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer. The second separator includes a polyolefin porous substrate and a second porous coating layer formed on at least one surface of the polyolefin porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer.Type: GrantFiled: April 22, 2008Date of Patent: June 3, 2014Assignee: LG Chem, Ltd.Inventors: Jong-Hun Kim, Hyun-Min Jang, Jang-Hyuk Hong, Joon-Yong Sohn, Sang-Young Lee
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Publication number: 20140062820Abstract: By providing a radiator configuration circuit and a feeding circuit each having a simple structure, a ground radiation antenna having a more simplified fabrication process as well as a remarkably reduced fabrication cost is provided herein. Additionally, a ground radiation antenna having an excellent radiation performance, even when one side of a mobile communication terminal is covered with a conductive substance, such as an LCD panel, is also provided herein.Type: ApplicationFiled: October 6, 2013Publication date: March 6, 2014Applicant: RADINA CO., LTDInventors: Hyun Min JANG, Hyeng Cheul CHOI, Dong Ryeol LEE, Yang LIU, Hyung Jin LEE, Jae Kyu YU
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Patent number: 8648763Abstract: A ground radiation antenna is disclosed. Herein, the ground radiation antenna provides a ground radiator inducing resonance by using the inductance of a ground. Since the ground radiator efficiently uses the inductance of the ground, the ground radiator may operate as a radiator of the ground radiation antenna by using a simple structure of combining a capacitive element with the ground. As described above, by providing an antenna radiator having a remarkably simple structure, the fabrication cost for the antenna may be decreased, and the size of the antenna may also be largely reduced.Type: GrantFiled: April 6, 2011Date of Patent: February 11, 2014Assignee: Radina Co., LtdInventors: Hyeng-cheul Choi, Yang Liu, Oul Cho, Hyun min Jang
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Patent number: 8200162Abstract: Disclosed is a method for minimizing interference between RFID readers built in a mobile terminal, it is possible to minimize interference between readers by assigning an operating time specific to the mobile terminal at a specific point of time of a cycle of a mobile communication network signal according to an identity number of a mobile terminal, even when several readers are scattered in a predetermined area and they try to detect one tag at the same time.Type: GrantFiled: January 8, 2008Date of Patent: June 12, 2012Assignee: SK Telecom Co., Ltd.Inventors: Hyun-Min Jang, O-Hyon Kwon, Su-Kil Kang, Tae-Jin Shin
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Patent number: 8168332Abstract: A separator includes a porous substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer, wherein the binder polymer includes a first polyvinylidene fluoride based copolymer having solubility of 25 weight % or more with respect to acetone at 35° C.; a second polyvinylidene fluoride-based copolymer having solubility of 10 weight % or less with respect to acetone at 35° C.; and a polymer having a cyano group. This separator decelerates deterioration of life span of an electrochemical device, and prevents disintercalation of inorganic particles in the porous coating layer, thereby improving safety of the electrochemical device.Type: GrantFiled: March 3, 2009Date of Patent: May 1, 2012Assignee: LG Chem, Ltd.Inventors: Yoon-Jung Bae, Pil-Kyu Park, Jong-Hwan Kim, Dong-Hun Han, Han-Ho Lee, Sang-Young Lee, Ji-Sang Yu, Hyun-Min Jang
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Patent number: 8062795Abstract: Disclosed is a separator comprising inorganic particle or aggregates thereof having a unique spectrum or color pattern according to a predetermined rule. Also, disclosed are an electrochemical device comprising the above separator and a method for identifying the origin or kind of the separator itself or the electrochemical device comprising the same by using the above separator. Further, disclosed is a method for manufacturing the aforementioned separator, the method comprising a step of forming a specific pattern by coating inorganic particles having a unique spectrum or color pattern on at least one area selected from the group consisting of a surface of a porous substrate and a porous part of the substrate.Type: GrantFiled: September 21, 2007Date of Patent: November 22, 2011Assignee: LG Chem, Ltd.Inventors: Sang-Young Lee, Dae-Jong Seo, Dong-Myung Kim, Seok-Koo Kim, Hyun-Min Jang
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Publication number: 20110193757Abstract: A ground radiation antenna is disclosed. Herein, the ground radiation antenna provides a ground radiator inducing resonance by using the inductance of a ground. Since the ground radiator efficiently uses the inductance of the ground, the ground radiator may operate as a radiator of the ground radiation antenna by using a simple structure of combining a capacitive element with the ground. As described above, by providing an antenna radiator having a remarkably simple structure, the fabrication cost for the antenna may be decreased, and the size of the antenna may also be largely reduced.Type: ApplicationFiled: April 6, 2011Publication date: August 11, 2011Applicant: RADINA CO., LTDInventors: Hyeng-cheul CHOI, Yang LIU, Oul CHO, Hyun min JANG
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Publication number: 20110045338Abstract: A separator includes a porous substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer, wherein the binder polymer includes a first polyvinylidene fluoride-based copolymer having solubility of 25 weight % or more with respect to acetone at 350 C; a second polyvinylidene fluoride-based copolymer having solubility of 10 weight % or less with respect to acetone at 350 C; and a polymer having a cyano group. This separator decelerates deterioration of life span of an electrochemical device, and prevents disintercalation of inorganic particles in the porous coating layer, thereby improving safety of the electrochemical device.Type: ApplicationFiled: March 3, 2009Publication date: February 24, 2011Applicant: LG CHEM, LTD.Inventors: Yoon-Jung Bae, Pil-Kyu Park, Jong-Hwan Kim, Dong-Hun Han, Han-Ho Lee, Sang-Young Lee, Ji-Sang Yu, Hyun-Min Jang
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Publication number: 20100290044Abstract: Disclosed is an electrode comprising an organic/inorganic composite introduced onto either surface or both surfaces thereof, the organic/inorganic composite comprising inorganic particle or aggregates thereof having a unique spectrum or color pattern according to a predetermined rule, and a polymer capable of interconnecting and fixing the inorganic particles. Also, disclosed are an electrochemical device comprising the above electrode, and a method for identifying the origin or kind of an electrode itself or an electrochemical device comprising the same by using the above electrode.Type: ApplicationFiled: July 18, 2007Publication date: November 18, 2010Applicant: LG Chem, Ltd.Inventors: Sang-Young Lee, Dae-Jong Seo, Dong-Myung Kim, Seok-Koo Kim, Hyun-Min Jang
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Publication number: 20100285371Abstract: Disclosed is a separator comprising inorganic particle or aggregates thereof having a unique spectrum or color pattern according to a predetermined rule. Also, disclosed are an electrochemical device comprising the above separator and a method for identifying the origin or kind of the separator itself or the electrochemical device comprising the same by using the above separator. Further, disclosed is a method for manufacturing the aforementioned separator, the method comprising a step of forming a specific pattern by coating inorganic particles having a unique spectrum or color pattern on at least one area selected from the group consisting of a surface of a porous substrate and a porous part of the substrate.Type: ApplicationFiled: September 21, 2007Publication date: November 11, 2010Applicant: LG CHEM, LTD.Inventors: Sang-Young Lee, Dae-Jong Seo, Dong-Myung Kim, Seok-Koo Kim, Hyun-Min Jang
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Publication number: 20100261047Abstract: An electrochemical device includes a plurality of unit cells, each having a first separator and a cathode and an anode positioned at both sides of the first separator, and a continuous single second separator interposed between adjacent unit cells in correspondence with each other in a laminated pattern and arranged to surround each unit cell. The first separator includes a heat-resisting porous substrate having a melt point of 200° C. or above and a first porous coating layer formed on at least one surface of the heat-resisting porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer. The second separator includes a polyolefin porous substrate and a second porous coating layer formed on at least one surface of the polyolefin porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer.Type: ApplicationFiled: April 22, 2008Publication date: October 14, 2010Applicant: LG CHEM, LTD.Inventors: Jong-Hun Kim, Hyun-Min Jang, Jang-Hyuk Hong, Joon-Yong Sohn, Sang-Young Lee
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Publication number: 20100159314Abstract: Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising heat-absorbing inorganic particles and a binder polymer, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of antimony-containing compounds, metal hydroxides, guanidine-based compounds, boron-containing compounds and zinc tartrate compounds. A separator using the heat-absorbing inorganic particles as a component for forming or coating the separator, and an electrochemical device including the electrode and/or the separator are also disclosed. The separator using the heat-absorbing inorganic particles as a component for forming or coating the separator can ensure excellent thermal safety and minimizes degradation of the quality of a battery.Type: ApplicationFiled: February 16, 2007Publication date: June 24, 2010Applicant: LG Chem, Ltd.Inventors: Seok-Koo Kim, Hyun-Min Jang, Sang-Young Lee, Jang-Hyuk Hong