Patents by Inventor Jong-Beom Baek
Jong-Beom Baek 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: 20230257274Abstract: A mechanochemical ammonia synthesis method according to an embodiment includes: (a) ball-milling Fe particles with balls under a nitrogen (N2) atmosphere; and (b) ball-milling the Fe particles ball-milled under the nitrogen (N2) atmosphere, with balls under a hydrogen (H2) atmosphere.Type: ApplicationFiled: December 24, 2020Publication date: August 17, 2023Applicant: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)Inventors: Jong-Beom Baek, Seok-Jin Kim, Gao-Feng Han
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Publication number: 20230155506Abstract: Embodiments of a switching regulator include a single inductor or two inductors connecting an input circuit and a multi-output end circuit that may drive different loads at different respective voltage levels. The input circuit may include a plurality of input switches, and may boost an input voltage or a ground voltage via operation in one of a plurality of selected modes such as a buck mode, a boost mode and a boost-buck mode, to thereby provide an applied voltage to the one or more inductors. Each selected mode may be based on a target voltage for one of a plurality of unit output ends (output load driving sections) in the multi-output end circuit. Output voltages may be monitored and on-times of switches controlled in the multi-output end circuit to maintain the output voltages in respective target ranges.Type: ApplicationFiled: October 3, 2022Publication date: May 18, 2023Inventors: Takahiro NOMIYAMA, Jong Beom BAEK
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Patent number: 11258359Abstract: A switching regulator configured to generate an output voltage from an input voltage, includes an inductor, an output capacitor configured to generate the output voltage based on a current passing through the inductor, a flying capacitor, and a plurality of switches. The plurality of switches are configured to operate in at least one of a buck-boost mode or a boost mode to, charge the flying capacitor to the input voltage in a first phase, and provide a boosted voltage from the flying capacitor to the inductor in a second phase, the boosted voltage being generated by charge pumping from the input voltage.Type: GrantFiled: March 27, 2020Date of Patent: February 22, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-beom Baek, Dong-su Kim, Jun-suk Bang
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Patent number: 11078581Abstract: Disclosed are a catalyst composite including a metal; and a nitrogen-containing porous 2D polymer carrier, and a method of manufacturing the catalyst composite. Accordingly, provided is a high-efficiency catalyst composite that does not depend on pH acid concentration using a nitrogen-containing porous two-dimensional (2D) polymer carrier and a low-cost metal.Type: GrantFiled: June 16, 2017Date of Patent: August 3, 2021Assignee: UNIST (Ulsan National Institute of Science and Technology)Inventors: Jong Beom Baek, Seok Jin Kim, Javeed Mahmood, Feng Li
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Patent number: 10985654Abstract: A switching regulator configured to generate a level-controlled output voltage from an input voltage, the switching regulator includes an inductor, an output capacitor configured to generate the level-controlled output voltage based on a current flowing through the inductor, at least two flying capacitors, and a plurality of switches configured to form electrical connections when the switching regulator operates in a first operating mode to, alternately charge each of the at least two flying capacitors using the input voltage, and provide a first boosted voltage to the inductor using a charged flying capacitor among the at least two flying capacitors.Type: GrantFiled: September 18, 2019Date of Patent: April 20, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Takahiro Nomiyama, Seung-chan Park, Jong-beom Baek
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Patent number: 10879804Abstract: A switching regulator configured to generate an output voltage based on an input voltage is provided. The switching regulator includes: an inductor; and a capacitor circuit configured to generate the output voltage by charging an inductor current passing through the inductor from the input voltage, provide a first capacitance as a load capacitance based on the output voltage being a first level or a second level, and provide a second capacitance, which is less than the first capacitance, as the load capacitance based on the output voltage being between the first level to the second level.Type: GrantFiled: February 26, 2019Date of Patent: December 29, 2020Assignee: SAMSUNG ELECTRONICS CO.. LTD.Inventors: Dong-su Kim, Jong-beom Baek
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Publication number: 20200295655Abstract: A switching regulator configured to generate a level-controlled output voltage from an input voltage, the switching regulator includes an inductor, an output capacitor configured to generate the level-controlled output voltage based on a current flowing through the inductor, at least two flying capacitors, and a plurality of switches configured to form electrical connections when the switching regulator operates in a first operating mode to, alternately charge each of the at least two flying capacitors using the input voltage, and provide a first boosted voltage to the inductor using a charged flying capacitor among the at least two flying capacitors.Type: ApplicationFiled: September 18, 2019Publication date: September 17, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Nomiyama Takahiro, Seung-chan PARK, Jong-beom BAEK
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Publication number: 20200240026Abstract: Disclosed are a catalyst composite including a metal; and a nitrogen-containing porous 2D polymer carrier, and a method of manufacturing the catalyst composite. Accordingly, provided is a high-efficiency catalyst composite that does not depend on pH acid concentration using a nitrogen-containing porous two-dimensional (2D) polymer carrier and a low-cost metal.Type: ApplicationFiled: June 16, 2017Publication date: July 30, 2020Inventors: Jong Beom Baek, Seok Jin Kim, Javeed Mahmood, Feng Li
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Publication number: 20200228003Abstract: A switching regulator configured to generate an output voltage from an input voltage, includes an inductor, an output capacitor configured to generate the output voltage based on a current passing through the inductor, a flying capacitor, and a plurality of switches. The plurality of switches are configured to operate in at least one of a buck-boost mode or a boost mode to, charge the flying capacitor to the input voltage in a first phase, and provide a boosted voltage from the flying capacitor to the inductor in a second phase, the boosted voltage being generated by charge pumping from the input voltage.Type: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-beom BAEK, Dong-su KIM, Jun-suk BANG
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Publication number: 20200144909Abstract: A switching regulator configured to generate an output voltage from an input voltage, includes an inductor, an output capacitor configured to generate the output voltage based on a current passing through the inductor, a flying capacitor, and a plurality of switches. The plurality of switches are configured to operate in at least one of a buck-boost mode or a boost mode to, charge the flying capacitor to the input voltage in a first phase, and provide a boosted voltage from the flying capacitor to the inductor in a second phase, the boosted voltage being generated by charge pumping from the input voltage.Type: ApplicationFiled: June 10, 2019Publication date: May 7, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-beom BAEK, Dong-su KIM, Jun-suk BANG
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Publication number: 20200028435Abstract: A switching regulator configured to generate an output voltage based on an input voltage is provided. The switching regulator includes: an inductor; and a capacitor circuit configured to generate the output voltage by charging an inductor current passing through the inductor from the input voltage, provide a first capacitance as a load capacitance based on the output voltage being a first level or a second level, and provide a second capacitance, which is less than the first capacitance, as the load capacitance based on the output voltage being between the first level to the second level.Type: ApplicationFiled: February 26, 2019Publication date: January 23, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-su KIM, Jong-beom Baek
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Patent number: 9656871Abstract: Disclosed is an edge-functionalized graphitic material manufactured by using a mechanochemical process. The edge-functionalized graphitic material is manufactured by pulverizing graphite in the presence of a variety of atmospheric agents in the form of gas phase, liquid phase, or solid phase. The edge-functionalized graphitic material, which is a precursor applicable into various fields, is expected to replace the prior art oxidized graphite.Type: GrantFiled: October 10, 2011Date of Patent: May 23, 2017Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)Inventors: In Yup Jeon, Jong Beom Baek
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Patent number: 9490040Abstract: Disclosed are boron/nitrogen co-doped graphene for semiconductor applications and a method for producing the same. The boron/nitrogen co-doping allows the use of the doped graphene in a wider variety of applications, including semiconductors. In contrast, graphene structures produced by conventional methods have good physical, chemical, and electrical stability but cannot be used in semiconductor applications due to the absence of band gaps therein. In addition, the boron/nitrogen co-doping makes the doped graphene highly dispersible in organic solvents.Type: GrantFiled: January 26, 2015Date of Patent: November 8, 2016Assignee: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATIONInventors: Jong-Beom Baek, Sun-Min Jung, In-Yup Jeon
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Patent number: 9487637Abstract: Disclosed is a method for producing edge-functionalized graphite with phosphoric acid. According to the method, graphite is pulverized into smaller pieces and is then exposed to an atmosphere containing oxygen and water. The method enables the production of graphite functionalized with phosphoric acid groups, which could not be achieved by conventional mechanochemical methods. In addition, the method is carried out in a very simple and economical manner and is suitable for large-scale production.Type: GrantFiled: February 19, 2015Date of Patent: November 8, 2016Assignee: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATIONInventors: Jong-Beom Baek, In-Yup Jeon, Min Jung Kim
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Patent number: 9434664Abstract: Disclosed is a method for producing edge-functionalized graphite or graphene with fluoro groups. According to the method, graphite is pulverized into smaller pieces and is then allowed to react with a surrounding material containing fluorine or a fluorocarbon compound. The method enables the production of graphite or graphene functionalized with fluoro groups, which could not be achieved by conventional mechanochemical methods. In addition, the method is carried out in a very simple and economical manner and is suitable for large-scale production.Type: GrantFiled: January 26, 2015Date of Patent: September 6, 2016Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)Inventors: Jong-Beom Baek, In-Yup Jeon
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Patent number: 9249027Abstract: Provided is an apparatus and method for exfoliation of graphene, comprising a chamber which has a through-hole formed at one surface thereof; a cylinder which receives graphite and a volatile material to be vaporized at room temperature and has an opening to be corresponding to the through-hole of the chamber, and which is disposed at an outside of the chamber; a clamp which is disposed in the chamber to pass through the through-hole of the chamber and thus selectively seal the opening of the cylinder; and an operation mechanism which is connected with the clamp and moves the clamp so that the opening of the cylinder is selectively sealed by the clamp. Therefore, it is not necessary to use an acid like sulfuric acid, and it is also not necessary to perform a thermal treatment process for removing sulfuric acid.Type: GrantFiled: March 15, 2013Date of Patent: February 2, 2016Assignee: UNIST-ACADEMY INDUSTRY RESEARCH CORPORATIONInventors: Jong Beom Baek, In Yup Jeon
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Patent number: 9187604Abstract: The present invention includes novel ether-ketone hyperbranched polymers that are prepared from polymerizing trimesic acid and bifunctional phenylether-based liquid or low-melting monomers, which melt at or below polymerization temperature. The resulting copolymer has repeating units of the formula: wherein m is the degree of polymerization; n has a value of 0-5; the ratio x:y corresponds to the molar ratio of trimesic acid and arylether monomer and may range from 1.0:1.0 to 1.0:1.5 (i.e. x=1, y=1.0, 1.1, 1.2 . . . 1.5); and the substitution pattern of the arylether segment may be para or meta. The endgroups may be carboxylic acid (—CO2H), oxyphenyl (—OPh), or mixture of both moieties, depending on the reaction ratio x:y used. The total number of endgroups is typically defined by m+1.Type: GrantFiled: March 13, 2014Date of Patent: November 17, 2015Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE AIR FORCEInventors: Loon-Seng Tan, Jong-Beom Baek
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Publication number: 20150232636Abstract: Disclosed is a method for producing edge-functionalized graphite with phosphoric acid. According to the method, graphite is pulverized into smaller pieces and is then exposed to an atmosphere containing oxygen and water. The method enables the production of graphite functionalized with phosphoric acid groups, which could not be achieved by conventional mechanochemical methods. In addition, the method is carried out in a very simple and economical manner and is suitable for large-scale production.Type: ApplicationFiled: February 19, 2015Publication date: August 20, 2015Applicant: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATIONInventors: Jong-Beom BAEK, In-Yup JEON, Min Jung KIM
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Publication number: 20150210616Abstract: Disclosed is & melted for producing edge-functionalized graphite or graphene with fluoro groups. According to the method, graphite is pulverized into smaller pieces and is then, allowed to react with a surrounding material containing fluorine or a fluorocarbon compound. The method enables the production of graphite or grapheme functionalized with fluoro groups, which could not be achieved by conventional mechanochemical methods. In addition, the method is carried out in a very simple and economical manner and is suitable for large-scale production.Type: ApplicationFiled: January 26, 2015Publication date: July 30, 2015Applicant: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATIONInventors: Jong-Beom BAEK, In-Yup Jeon
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Publication number: 20150213915Abstract: Disclosed are boron/nitrogen co-doped graphene for semiconductor applications and a method for producing the same. The boron/nitrogen co-doping allows the use of the doped graphene in a wider variety of applications, including semiconductors. In contrast, graphene structures produced by conventional methods have good physical, chemical, and electrical stability but cannot be used in semiconductor applications due to the absence of band gaps therein. In addition, the boron/nitrogen co-doping makes the doped graphene highly dispersible in organic solvents.Type: ApplicationFiled: January 26, 2015Publication date: July 30, 2015Applicant: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATIONInventors: Jong-Beom Baek, Sun-Min Jung, In-Yup Jeon