Patents by Inventor Sun Hyoung Lee
Sun Hyoung Lee 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: 11953958Abstract: A display includes: a display panel; and a panel bottom sheet disposed below the display panel, the panel bottom sheet including: a first heat dissipation layer; a second heat dissipation layer over the first heat dissipation layer, including a first opening formed completely through the second heat dissipation layer in a thickness direction; a heat dissipation coupling interlayer between the first heat dissipation layer and the second heat dissipation layer, and a heat dissipation substrate on the second heat dissipation layer.Type: GrantFiled: December 12, 2022Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Kang Woo Lee, Boo Kan Ki, June Hyoung Park, Sun Hee Oh, Dong Hyeon Lee, Jeong In Lee, Hyuk Hwan Kim, Seong Sik Choi
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Patent number: 11943090Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.Type: GrantFiled: July 19, 2021Date of Patent: March 26, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook Kim, Nam-Ho Hur
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Patent number: 11923872Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 7/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.Type: GrantFiled: April 28, 2023Date of Patent: March 5, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
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Patent number: 11866843Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, having excellent physical properties at a low temperature, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery shows little change in the physical properties, such as tensile strength and elongation, of a copper foil even at a low temperature and thereby exhibits excellent cycle properties at the low temperature. The electrolytic copper foil for a secondary battery is produced from a plating solution, containing total organic carbon (TOC), cobalt, iron and zinc, by using a drum and coated with a cathode active material, wherein the ratio between the TOC, cobalt, iron and zinc contained in the electrolytic copper foil follows the following formula 1: TOC/(cobalt+iron+zinc)=1.0-1.2.Type: GrantFiled: April 13, 2021Date of Patent: January 9, 2024Assignee: LOTTE ENERGY MATERIALS CORPORATIONInventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11749794Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, and a method of producing the same. The electrolytic copper foil for a secondary battery exhibits a little change in a physical property caused by a difference in a crosshead speed when tensile strength and an elongation percentage of the electrolytic copper foil are measured, thereby achieving excellent charging and discharging characteristics of a battery and preventing exfoliation of an active material. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC), cobalt, and iron by using a drum, in which a ratio of the TOC to the cobalt and the iron contained in the electrolytic copper foil follows Formula 1 below. TOC/(cobalt+iron)=1.3 to 1.Type: GrantFiled: May 2, 2021Date of Patent: September 5, 2023Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11629422Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, having excellent flexural resistance, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery has excellent flexural resistance even without the use of many additives in a copper electrolyte when producing a copper foil. The electrolytic copper foil for a secondary battery according to the present invention is an electrolytic copper foil for a secondary battery, which is produced from a plating solution, containing total organic carbon (TOC), cobalt and arsenic, by using a drum and is coated with a negative electrode active material, wherein the ratio between the TOC, cobalt and arsenic contained in the electrolytic copper foil follows the following formula 1: TOC/(cobalt+arsenic)=1.30-1.55.Type: GrantFiled: April 13, 2021Date of Patent: April 18, 2023Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11508967Abstract: The present invention relates to an electrolytic copper foil for a secondary battery and a method of producing the same, and more particularly, to an electrolytic copper foil for a secondary battery, which has little change in a physical property of a copper foil before and after vacuum drying in a process of producing an electrolytic copper foil, thereby exhibiting excellent cycle life in a battery test at a high-density negative electrode, and preventing cracking. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC), zinc, and iron by using a drum, in which a ratio of the TOC to the zinc and the iron contained in the electrolytic copper foil follows Formula 1 below: TOC/(zinc+iron)=1.3 to 1.5.Type: GrantFiled: January 10, 2021Date of Patent: November 22, 2022Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11380898Abstract: The present invention relates to an electrolytic copper foil for a secondary battery and a method of producing the same, and more particularly, to an electrolytic copper foil for a secondary battery, which has little change in a physical property of a copper foil before and after vacuum drying in a process of producing an electrolytic copper foil, thereby exhibiting excellent cycle life in a battery test at a high-density negative electrode, and preventing cracking. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC), zinc, and iron by using a drum, in which a ratio of the TOC to the zinc and the iron contained in the electrolytic copper foil follows Formula 1 below: TOC/(zinc+iron)=1.3 to 1.Type: GrantFiled: March 28, 2017Date of Patent: July 5, 2022Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11362336Abstract: The present disclosure provides an electrolytic copper foil composed of a single layer or a stack of two or more layers, wherein the electrolytic copper foil has Total Organic Carbon (TOC) content equal to or smaller than 4 ppm, and has chlorine (Cl) content equal to or smaller than 10 ppm, wherein the electrolytic copper foil has a thickness, a tensile strength, and an elongation satisfying a relationship 1 below: relationship 1: thickness (?m)/(tensile strength (kgf/mm2)*elongation (%))?0.1.Type: GrantFiled: January 8, 2019Date of Patent: June 14, 2022Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Seul-Ki Park, Tae Jin Jo, Ki Deok Song
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Publication number: 20220035258Abstract: An overlay measurement device for measuring an error between a first overlay mark and a second overlay mark respectively formed on different layers formed on a wafer is proposed. The device includes a light source, a first beam splitter configured to split a beam emitted from the light source into two beams, a first color filter configured to adjust a center wavelength and a band width of one of the beams split by the first beam splitter so that the center wavelength and the band width of one of the beams become suitable for acquiring an image of the first overlay mark.Type: ApplicationFiled: September 11, 2019Publication date: February 3, 2022Inventors: Sun Hyoung LEE, Kil Soo LEE, Seung Soo LEE, Gyu Nam PARK
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Patent number: 11171319Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, and a method of producing the same. The electrolytic copper foil for a secondary battery exhibits a little change in a physical property caused by a difference in a crosshead speed when tensile strength and an elongation percentage of the electrolytic copper foil are measured, thereby achieving excellent charging and discharging characteristics of a battery and preventing exfoliation of an active material. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC), cobalt, and iron by using a drum, in which a ratio of the TOC to the cobalt and the iron contained in the electrolytic copper foil follows Formula 1 below. TOC/(cobalt+iron)=1.3 to 1.Type: GrantFiled: March 28, 2017Date of Patent: November 9, 2021Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11162183Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, having excellent physical properties at a low temperature, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery shows little change in the physical properties, such as tensile strength and elongation, of a copper foil even at a low temperature and thereby exhibits excellent cycle properties at the low temperature. The electrolytic copper foil for a secondary battery is produced from a plating solution, containing total organic carbon (TOC), cobalt, iron and zinc, by using a drum and coated with a negative electrode active material, wherein the ratio between the TOC, cobalt, iron and zinc contained in the electrolytic copper foil follows the following formula 1: TOC/(cobalt+iron+zinc)=1.0-1.2.Type: GrantFiled: March 28, 2017Date of Patent: November 2, 2021Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11142838Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, having excellent flexural resistance, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery has excellent flexural resistance even without the use of many additives in a copper electrolyte when producing a copper foil. The electrolytic copper foil for a secondary battery according to the present invention is an electrolytic copper foil for a secondary battery, which is produced from a plating solution, containing total organic carbon (TOC), cobalt and arsenic, by using a drum and is coated with a negative electrode active material, wherein the ratio between the TOC, cobalt and arsenic contained in the electrolytic copper foil follows the following formula 1: TOC/(cobalt+arsenic)=1.30?1.55.Type: GrantFiled: March 28, 2017Date of Patent: October 12, 2021Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 11118279Abstract: The present invention relates to an electrolytic copper foil for a secondary battery and a method of producing the same. The electrolytic copper foil for a secondary battery, in which a burr and curl of a negative electrode plate are inhibited from being formed after an electrolytic copper foil is coated with a negative electrode active material, thereby increasing the loading volume of a negative electrode and increasing a capacity. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC) by using a drum, in which the electrolytic copper foil is formed of one surface that is in direct contact with the drum and the other surface that is an opposite surface of the one surface, and an average cross-sectional grain size of the one surface is 80% or less of an average cross-sectional grain size of the other surface.Type: GrantFiled: January 30, 2020Date of Patent: September 14, 2021Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Publication number: 20210257603Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, and a method of producing the same. The electrolytic copper foil for a secondary battery exhibits a little change in a physical property caused by a difference in a crosshead speed when tensile strength and an elongation percentage of the electrolytic copper foil are measured, thereby achieving excellent charging and discharging characteristics of a battery and preventing exfoliation of an active material. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC), cobalt, and iron by using a drum, in which a ratio of the TOC to the cobalt and the iron contained in the electrolytic copper foil follows Formula 1 below. TOC/(cobalt+iron)=1.3 to 1.Type: ApplicationFiled: May 2, 2021Publication date: August 19, 2021Applicant: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung LEE, Tae Jin JO, Seul-Ki PARK, Ki Deok SONG
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Publication number: 20210230760Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, having excellent physical properties at a low temperature, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery shows little change in the physical properties, such as tensile strength and elongation, of a copper foil even at a low temperature and thereby exhibits excellent cycle properties at the low temperature. The electrolytic copper foil for a secondary battery is produced from a plating solution, containing total organic carbon (TOC), cobalt, iron and zinc, by using a drum and coated with a cathode active material, wherein the ratio between the TOC, cobalt, iron and zinc contained in the electrolytic copper foil follows the following formula 1: TOC/(cobalt+iron+zinc)=1.0-1.2.Type: ApplicationFiled: April 13, 2021Publication date: July 29, 2021Applicant: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung LEE, Tae Jin JO, Seul-Ki PARK, Ki Deok SONG
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Publication number: 20210230761Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, having excellent flexural resistance, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery has excellent flexural resistance even without the use of many additives in a copper electrolyte when producing a copper foil. The electrolytic copper foil for a secondary battery according to the present invention is an electrolytic copper foil for a secondary battery, which is produced from a plating solution, containing total organic carbon (TOC), cobalt and arsenic, by using a drum and is coated with a cathode active material, wherein the ratio between the TOC, cobalt and arsenic contained in the electrolytic copper foil follows the following formula 1: TOC/(cobalt+arsenic)=1.30?1.55.Type: ApplicationFiled: April 13, 2021Publication date: July 29, 2021Applicant: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung LEE, Tae Jin JO, Seul-Ki PARK, Ki Deok SONG
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Publication number: 20210135234Abstract: The present invention relates to an electrolytic copper foil for a secondary battery and a method of producing the same, and more particularly, to an electrolytic copper foil for a secondary battery, which has little change in a physical property of a copper foil before and after vacuum drying in a process of producing an electrolytic copper foil, thereby exhibiting excellent cycle life in a battery test at a high-density negative electrode, and preventing cracking. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC), zinc, and iron by using a drum, in which a ratio of the TOC to the zinc and the iron contained in the electrolytic copper foil follows Formula 1 below: TOC/(zinc+iron)=1.3 to 1.5.Type: ApplicationFiled: January 10, 2021Publication date: May 6, 2021Applicant: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 10920330Abstract: The present invention relates to an electrolytic copper foil for a secondary battery and a method of producing the same. The electrolytic copper foil for a secondary battery, in which a burr and curl of a negative electrode plate are inhibited from being formed after an electrolytic copper foil is coated with a negative electrode active material, thereby increasing the loading volume of a negative electrode and increasing a capacity. The electrolytic copper foil for a secondary battery is produced from a plating solution containing Total Organic Carbon (TOC) by using a drum, in which the electrolytic copper foil is formed of one surface that is in direct contact with the drum and the other surface that is an opposite surface of the one surface, and an average cross-sectional grain size of the one surface is 80% or less of an average cross-sectional grain size of the other surface.Type: GrantFiled: March 28, 2017Date of Patent: February 16, 2021Assignee: ILJIN MATERIALS CO., LTD.Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
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Patent number: 10826117Abstract: The present disclosure relates to an electrolytic copper foil for graphene and a method for producing the copper foil. More particularly, the present disclosure relates to an electrolytic copper foil for graphene and a method for producing the copper foil, which may facilitate formation of graphene by blocking surface deformation during the electrolytic copper foil formation. In accordance with the present disclosure, the Rz roughness of the S-face of the electrolytic copper foil after 1 hour treatment at 200° C. in the synthesis of graphene on the electrolytic copper foil is defined based on the Relationship 1 below. This may also minimize the deformation of the surface of the electrolytic copper foil at high temperatures: 0.05?(Rz roughness of M-face of electrolytic copper foil/Rz roughness of S-face after treatment at 200° C. for 1 hour)/thickness of electrolytic copper foil?0.2.Type: GrantFiled: March 21, 2017Date of Patent: November 3, 2020Assignee: ILJIN MATERIALS CO., LTD.Inventors: Tae Jin Jo, Sun Hyoung Lee, Seul-Ki Park, Ki Deok Song