Patents by Inventor Dong Jin Ham
Dong Jin Ham 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: 10584043Abstract: A capacitive deionization apparatus may include at least one pair of porous electrodes and a spacer structure disposed between the at least one pair of electrodes. The at least one pair of porous electrodes may include an electrode material having a surface area for the electrostatic adsorption of feed ions. The spacer structure may include an electrically-insulating material with an ion exchange group on the surface thereof. The spacer structure provides a path for flowing a fluid therethrough.Type: GrantFiled: September 27, 2013Date of Patent: March 10, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Joon Seon Jeong, Hyun Seok Kim, Da Hye Park, Dong Jin Ham, Hyo Rang Kang
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Patent number: 9748562Abstract: A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.Type: GrantFiled: April 8, 2014Date of Patent: August 29, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-jin Ham, Jeong-kuk Shon, Min-sang Song, Seung-sik Hwang, Jun-hwan Ku, Jae-jun Chang, Sang-min Ji, Jae-man Choi
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Patent number: 9658138Abstract: Disclosed is a container fixing holder of a time-series sediment trapping device. With respect to the container fixing holder of the time-series sediment trapping device, the time-series sediment trapping device includes a funnel; a frame disposed to support and surround the funnel, a frame having at least one rod vertically disposed and a fixing plate coupled to the at least one rod forming the frame on a horizontal plane defined by a lower portion of the funnel, wherein a rotation plate, to which a plurality of time-series sediment trapping containers to trap the time-series sediment collected through the funnel are fixedly attached, is formed under the fixing plate. The container fixing holder includes a circular holder for fixing the plurality of time-series sediment trapping containers fixedly attached to the rotation plate without shaking.Type: GrantFiled: June 9, 2014Date of Patent: May 23, 2017Assignee: Korea Institute of Ocean Science & TechnologyInventors: Dong-Jin Ham, Gun-Chang Lee, Sang-Bum Chi, Kyeong-Hong Kim, Hyoung-Jeek Kim
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Patent number: 9643158Abstract: A metal suboxide having a specific surface area of greater than or equal to about 1.5 m2/g is prepared by preparing a metal suboxide precursor, and heat-treating the metal suboxide precursor.Type: GrantFiled: December 17, 2014Date of Patent: May 9, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Jin Ham, Bok Soon Kwon, Hyun-seok Kim, Joon Seon Jeong, Hyo Rang Kang, Jae Sung Lee, Sueng Hoon Han, Gang Hong Bae
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Patent number: 9466843Abstract: An electrode catalyst for a fuel cell, a membrane electrode assembly including the electrode catalyst, and a fuel cell including the electrode catalyst. The electrode catalyst has excellent electrochemical activity compared to the currently commercially available Pt/C catalyst and is much cheaper than a catalyst using platinum. The electrode catalyst includes tungsten carbide having a specific surface area of about 10 to about 30 m2/g, and a metal catalyst comprising palladium (Pd) or palladium alloy.Type: GrantFiled: July 26, 2011Date of Patent: October 11, 2016Assignees: SAMSUNG ELECTRONICS CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Chan-ho Pak, Dae-jong Yoo, Hyuk Chang, Dong-jin Ham, Sueng-hoon Han, Gang-hong Bae, Jae-sung Lee
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Patent number: 9416654Abstract: Disclosed is a complex sampling apparatus. The complex sampling apparatus includes a main sampling unit having a predetermined weight to be sunk to sea floor and inserted into the sea floor in order to collect a sample including a sediment; one or a plurality of sub-sampling unit disposed at a side of the main sampling unit to detect that the sub-sampling unit arrives on the sea floor and to scrape a predetermined amount of the sample from a surface of the sea floor; and an image acquiring unit installed to the main sampling unit to acquire an image of the sea floor.Type: GrantFiled: August 3, 2012Date of Patent: August 16, 2016Assignee: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGYInventors: Gun-Chang Lee, Dong-Jin Ham, Sang-Bum Chi, Kyeong-Hong Kim
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Publication number: 20160146713Abstract: Disclosed is a container fixing holder of a time-series sediment trapping device. With respect to the container fixing holder of the time-series sediment trapping device, the time-series sediment trapping device includes a funnel; a frame disposed to support and surround the funnel, a frame having at least one rod vertically disposed and a fixing plate coupled to the at least one rod forming the frame on a horizontal plane defined by a lower portion of the funnel, wherein a rotation plate, to which a plurality of time-series sediment trapping containers to trap the time-series sediment collected through the funnel are fixedly attached, is formed under the fixing plate. The container fixing holder includes a circular holder for fixing the plurality of time-series sediment trapping containers fixedly attached to the rotation plate without shaking.Type: ApplicationFiled: June 9, 2014Publication date: May 26, 2016Inventors: Dong-Jin HAM, Gun-Chang LEE, Sang-Bum CHI, Kyeong-Hong KIM, Hyoung-Jeek KIM
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Patent number: 9162907Abstract: An ion exchanger according to a non-limiting embodiment may include an open cell polymer support and a microporous polymer matrix charged within the open cell polymer support. The microporous polymer matrix includes an ion conductive polymer. The ion conductive polymer may be obtained by polymerizing monomers having at least one ion exchange functional group and at least one cross-linkable functional group with a cross-linking agent having at least two cross-linkable functional groups.Type: GrantFiled: November 13, 2012Date of Patent: October 20, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bok Soon Kwon, Sang Ho Park, Hyo Rang Kang, Hyun Seok Kim, Joon Seon Jeong, Dong Jin Ham
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Publication number: 20150111102Abstract: A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.Type: ApplicationFiled: April 8, 2014Publication date: April 23, 2015Applicant: Samsung Electronics Co., Ltd.Inventors: Dong-jin HAM, Jeong-kuk SHON, Min-sang SONG, Seung-sik HWANG, Jun-hwan KU, Jae-jun CHANG, Sang-min JI, Jae-man CHOI
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Publication number: 20150105249Abstract: A metal suboxide having a specific surface area of greater than or equal to about 1.5 m2/g is prepared by preparing a metal suboxide precursor, and heat-treating the metal suboxide precursor.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Applicant: Postech Academy-Industry FoundationInventors: Dong Jin HAM, Bok Soon KWON, Hyun-seok KIM, Joon Seon JEONG, Hyo Rang KANG, Jae Sung LEE, Sueng Hoon HAN, Gang Hong BAE
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Patent number: 8927102Abstract: A metal suboxide having a specific surface area of greater than or equal to about 1.5 m2/g is prepared by preparing a metal suboxide precursor, and heat-treating the metal suboxide precursor.Type: GrantFiled: June 20, 2012Date of Patent: January 6, 2015Assignees: Samsung Electronics Co., Ltd., Postech Academy-Industry FoundationInventors: Dong Jin Ham, Bok Soon Kwon, Hyun Seok Kim, Joon Seon Jeong, Hyo Rang Kang, Jae Sung Lee, Sueng Hoon Han, Gang Hong Bae
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Publication number: 20140144255Abstract: Disclosed is a complex sampling apparatus. The complex sampling apparatus includes a main sampling unit having a predetermined weight to be sunk to sea floor and inserted into the sea floor in order to collect a sample including a sediment; one or a plurality of sub-sampling unit disposed at a side of the main sampling unit to detect that the sub-sampling unit arrives on the sea floor and to scrape a predetermined amount of the sample from a surface of the sea floor; and an image acquiring unit installed to the main sampling unit to acquire an image of the sea floor.Type: ApplicationFiled: August 3, 2012Publication date: May 29, 2014Applicant: Korea Ocean Research and Development InstituteInventors: Gun-Chang Lee, Dong-Jin Ham, Sang-Bum Chi, Kyeong-Hong Kim
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Publication number: 20140144779Abstract: A capacitive deionization apparatus may include at least one pair of porous electrodes and a spacer structure disposed between the at least one pair of electrodes. The at least one pair of porous electrodes may include an electrode material having a surface area for the electrostatic adsorption of feed ions. The spacer structure may include an electrically-insulating material with an ion exchange group on the surface thereof. The spacer structure provides a path for flowing a fluid therethrough.Type: ApplicationFiled: September 27, 2013Publication date: May 29, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joon Seon JEONG, Hyun Seok KIM, Da Hye PARK, Dong Jin HAM, Hyo Rang KANG
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Publication number: 20140144773Abstract: A photoelectrochemical cell includes a compartment divider configured to divide a container into a first compartment and a second compartment, the compartment divider having a first surface facing the first compartment and a second surface facing the second compartment, a first electrolyte in the first compartment, a second electrolyte in the second compartment, a first electrode on the first surface of the compartment divider, a second electrode on the second surface of the compartment divider, a first photocatalyst layer on the first electrode, a second photocatalyst layer on the second electrode, and a catalyst passage connecting the first compartment and the second compartment, the catalyst passage configured to control the first electrolyte and the second electrolyte to flow in one direction.Type: ApplicationFiled: October 8, 2013Publication date: May 29, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Sang Min JI, Dong Jin HAM, Hyo Rang KANG
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Publication number: 20130264209Abstract: An ion exchanger according to a non-limiting embodiment may include an open cell polymer support and a microporous polymer matrix charged within the open cell polymer support. The microporous polymer matrix includes an ion conductive polymer. The ion conductive polymer may be obtained by polymerizing monomers having at least one ion exchange functional group and at least one cross-linkable functional group with a cross-linking agent having at least two cross-linkable functional groups.Type: ApplicationFiled: November 13, 2012Publication date: October 10, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bok Soon KWON, Sang Ho PARK, Hyo Rang KANG, Hyun Seok KIM, Joon Seon JEONG, Dong Jin HAM
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Publication number: 20130202889Abstract: A metal suboxide having a specific surface area of greater than or equal to about 1.5 m2/g is prepared by preparing a metal suboxide precursor, and heat-treating the metal suboxide precursor.Type: ApplicationFiled: June 20, 2012Publication date: August 8, 2013Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Jin Ham, Bok Soon Kwon, Hyun Seok Kim, Joon Seon Jeong, Hyo Rang Kang, Jae Sung Lee, Sueng Hoon Han, Gang Hong Bae
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Publication number: 20130178356Abstract: A heavy metal absorbent, and a filter device including the same, include heavy metal absorbing particles each having a surface with a —NOx (1?x?2) functional group. The heavy metal absorbing particles are one selected from inorganic oxide particles, graphite-based carbon particles, and a combination thereof.Type: ApplicationFiled: July 23, 2012Publication date: July 11, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Seok Kim, Bok Soon Kwon, Dong Jin Ham, Hyo Rang Kang, Joon Seon Jeong
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Publication number: 20120028171Abstract: An electrode catalyst for a fuel cell, a membrane electrode assembly including the electrode catalyst, and a fuel cell including the electrode catalyst. The electrode catalyst has excellent electrochemical activity compared to the currently commercially available Pt/C catalyst and is much cheaper than a catalyst using platinum. The electrode catalyst includes tungsten carbide having a specific surface area of about 10 to about 30 m2/g, and a metal catalyst comprising palladium (Pd) or palladium alloy.Type: ApplicationFiled: July 26, 2011Publication date: February 2, 2012Applicants: Postech Academy-Industry Foundation, Samsung Electronics Ltd.Inventors: Chan-ho PAK, Dae-jong Yoo, Hyuk Chang, Dong-jin Ham, Sueng-hoon Han, Gang-hong Bae, Jae-sung Lee
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Publication number: 20110053039Abstract: An electrode catalyst for a fuel cell having comparable electrochemical activity as a platinum electrode catalyst but is much cheaper than the platinum electrode catalyst has a structure in which palladium and at least one metal catalyst selected from the group consisting of nickel, gold, iron, and silver, and combinations thereof, are supported on a tungsten carbide and carbon mesoporous composite support. A membrane electrode assembly and a fuel cell including the electrode catalyst also has comparable electrochemical activity as a platinum electrode catalyst but is also much cheaper than the platinum electrode catalyst.Type: ApplicationFiled: December 9, 2009Publication date: March 3, 2011Applicants: Samsung Electronics Co., Ltd., Postech Academy-Industry FoundationInventors: Chan-ho Pak, Dong Jin Ham, Jae-sung Lee, Hyuk Chang, Gang-hong Bae