Patents by Inventor Hong-Jeong Kim
Hong-Jeong Kim 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: 20240155910Abstract: A pixel includes first, second, and third sub-pixels each including an emission area and a non-emission area. Each of the first, second, and third sub-includes a pixel circuit layer; a first electrode on the pixel circuit layer; a pixel defining layer on the first electrode and including an opening to expose an area of the first electrode; an emission layer on the pixel defining layer; a second electrode on the emission layer; a thin film encapsulation layer over the second electrode; a color filter on the thin film encapsulation layer; and an overcoat layer over the color filter. The overcoat layer has a refractive index greater than a refractive index of the color filter. A color filter of the second sub-pixel overlaps a color filter of each of the first and third sub-pixels in the non-emission area.Type: ApplicationFiled: October 25, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., LTD.Inventors: Tae Ho KIM, Hyeo Ji KANG, Oh Jeong KWON, Su Jeong KIM, Mi Hwa LEE, Hong Yeon LEE, Sung Gyu JANG, Seung Yeon JEONG
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Publication number: 20240136138Abstract: A field emission assembly and an electromagnetic wave generator are provided, the field emission assembly includes a linear emitter which includes carbon nanotube (CNT) fibers and emits electrons and a holder configured to fix the emitter, both ends of the emitter are fixed to the holder, and the emitter includes at least one of a curved portion so as to form a peak in an electron emission direction and a bent portion so as to form a peak in the electron emission direction.Type: ApplicationFiled: November 28, 2022Publication date: April 25, 2024Inventors: Hong Soo CHOI, Young Bae KIM, Hyeongu CHO, Namkyu LEE, Keunsoo JEONG, Se Hoon GIHM, Sora LEE
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Publication number: 20240136142Abstract: An emitter, a field emission assembly, and an electromagnetic wave generator are provided, and the emitter is an emitter for emitting electrons in an electromagnetic wave generator and is in the form of a sheet in which a plurality of yarns including carbon nanotube (CNT) fibers are weaved.Type: ApplicationFiled: November 28, 2022Publication date: April 25, 2024Inventors: Hong Soo CHOI, Young Bae KIM, Hyeongu CHO, Namkyu LEE, Keunsoo JEONG, Se Hoon GIHM, Jiwon CHOI
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Publication number: 20240080320Abstract: A server according to an embodiment includes a processor configured to receive a friend add request for a target account from a user terminal accessed with a user account; based on one of the user account and the target account being a protected account, transmit an approval request for the friend add request to a protector account connected to the protected account; and based on receiving a reply to the approval request from the protector terminal, add the target account to a friend list of the user account.Type: ApplicationFiled: April 27, 2023Publication date: March 7, 2024Inventors: You Jin KIM, Jung Woo CHOI, Jenog Ryeol CHOI, Joong Seon KIM, Hong Chan YUN, Ju Ho CHUNG, Do Hyun YOUN, Hyung Min KIM, Hyun Ok CHOI, Chun Ho KIM, Soo Beom KIM, Min Jeong KIM, Chang Oh HEO, Eun Soo HEO
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Patent number: 10854908Abstract: Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, and a first separator disposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode have active material layers having different loading levels. A lithium battery may have improved high rate characteristics and lifespan characteristics by including the electrode structure.Type: GrantFiled: March 31, 2015Date of Patent: December 1, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Bo-Hyun Kim, Jong-Ki Lee, Hong-Jeong Kim, Yu-Jin Han
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Patent number: 10003109Abstract: A secondary battery includes an electrode assembly, and a case configured to accommodate the electrode assembly. At least a portion of the case includes a first insulation layer, a second insulation layer, and a capacitor between the first insulation layer and the second insulation layer, and the first insulation layer is nearer to the electrode assembly than the second insulation layer.Type: GrantFiled: March 23, 2015Date of Patent: June 19, 2018Assignee: Samsung SDI Co., Ltd.Inventors: Hong Jeong Kim, Jong Ki Lee
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Publication number: 20150340732Abstract: Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, and a first separator disposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode have active material layers having different loading levels and current densities. A lithium battery may have improved high rate characteristics and lifespan characteristics by including the electrode structure.Type: ApplicationFiled: April 1, 2015Publication date: November 26, 2015Inventors: Bo-Hyun Kim, Jong-Ki Lee, Hong-Jeong Kim, Yu-Jin Han
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Publication number: 20150340731Abstract: Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, a first separator, and a second separator having a thickness that is different from a thickness of the first separator, wherein the positive electrode and the negative electrode respectively include active material layers having different loading levels. The lithium battery may have high rate characteristics and life characteristics by including the electrode structure.Type: ApplicationFiled: April 1, 2015Publication date: November 26, 2015Inventors: Bo-Hyun Kim, Jong-Ki Lee, Hong-Jeong Kim, Yu-Jin Han
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Publication number: 20150340730Abstract: Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, and a first separator disposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode have active material layers having different loading levels. A lithium battery may have improved high rate characteristics and lifespan characteristics by including the electrode structure.Type: ApplicationFiled: March 31, 2015Publication date: November 26, 2015Inventors: Bo-Hyun Kim, Jong-Ki Lee, Hong-Jeong Kim, Yu-Jin Han
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Publication number: 20150325887Abstract: A secondary battery includes an electrode assembly, and a case configured to accommodate the electrode assembly. At least a portion of the case includes a first insulation layer, a second insulation layer, and a capacitor between the first insulation layer and the second insulation layer, and the first insulation layer is nearer to the electrode assembly than the second insulation layer.Type: ApplicationFiled: March 23, 2015Publication date: November 12, 2015Inventors: Hong Jeong Kim, Jong Ki Lee
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Patent number: 9130203Abstract: A cylindrical battery has a crimp region is formed at the upper end of the container. The upper end of the crimp region is gently bent to surround a gasket located at the inside of the crimp region. A bent front end is continuously bent twice to press the gasket, while the bent front end extends inward, such that a radius of curvature (R1) of the first bent area is less than a radius of curvature (R2) of the second bent area. The upper end of the crimp region of the cylindrical container is continuously bent twice in a predetermined condition. Consequently, when external physical impacts are applied to the battery, and when the internal pressure of the battery increases, the sealed portions are restrained from being separated from each other, thereby preventing the leakage of an electrolyte and thus greatly improving the safety of the battery.Type: GrantFiled: November 7, 2007Date of Patent: September 8, 2015Assignee: LG CHEM, LTD.Inventors: Sungjong Kim, Jaehan Jung, BongTae Kim, Hong-Jeong Kim
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Publication number: 20150243953Abstract: A secondary battery includes a first electrode assembly configured to include a first positive electrode plate, a first negative electrode plate, and a first separator interposed between the first positive electrode plate and the first negative electrode plate, a second electrode assembly configured to include a second positive electrode plate, a second negative electrode plate, and a second separator interposed between the second positive electrode plate and the second negative electrode plate, the second separator having a porosity greater than that of the first separator, the first electrode assembly having high capacity, as compared with second electrode assembly, and the second electrode assembly having high power, as compared with the first electrode assembly, and a case configured to accommodate the first and second electrode assemblies therein.Type: ApplicationFiled: February 23, 2015Publication date: August 27, 2015Inventors: Hong-Jeong KIM, Jong-Ki LEE, Kyu-Nam JOO, Kyun LIM
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Publication number: 20150037638Abstract: A secondary battery includes a high-capacity electrode portion, a high-power electrode portion, an electrolyte and a battery case. The high-capacity electrode portion includes a first positive electrode plate, a first negative electrode plate opposite to the first positive electrode plate, and a separator between the first positive electrode plate and the first negative electrode plate. The high-power electrode portion includes a second positive electrode plate, a second negative electrode plate opposite to the second positive electrode plate, and a separator between the second positive electrode plate and the second negative electrode plate. The electrolyte contacts the high-capacity electrode portion and the high-power electrode portion. The battery case accommodates the high-capacity electrode portion, the high-power electrode portion and the electrolyte therein.Type: ApplicationFiled: May 23, 2014Publication date: February 5, 2015Applicant: SAMSUNG SDI CO., LTD.Inventors: Hong Jeong KIM, JongKi LEE, Seok-Gyun CHANG, Eun KWAK
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Patent number: 8927123Abstract: A cap assembly of a cylindrical rechargeable battery includes an integrated gasket obtained by integrating a first gasket covering a top cap, a PTC element, and a safety vent and a second gasket covering a CID. The rechargeable battery including the cap assembly has the advantages of increasing a contact area between a safety vent and a gasket by integrating the existing dual-gasket structure to thereby increase a sealing effect, increasing a short circuit reactivity of the CID by freely changing the gasket structure according to the diameter of the current interrupting member to thereby improve stability, simplify components, and reduce a production unit cost.Type: GrantFiled: June 11, 2010Date of Patent: January 6, 2015Assignee: LG Chem, Ltd.Inventors: Je Jun Lee, Sung Jong Kim, Cha Hun Ku, Hong-Jeong Kim
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Patent number: 8889288Abstract: A cylindrical battery constructed in a structure in which a crimp region is gently bent, such that the crimp region surrounds a gasket located at the inside of the crimp region, a bent front end is continuously bent twice to press the gasket, to be in the form of a compound curve. Under external physical impacts, such as vibration or dropping, applied to the battery, and when the internal pressure of the battery increases, the sealed portions are restrained from being separated from each other, thereby preventing the leakage of an electrolyte and thus greatly improving the safety of the battery. Furthermore, it is possible to minimize the deformation of the container, such as wrinkles, which may be formed due to failure to form the bent area gently when bending the front end of the crimp region with a small radius of curvature.Type: GrantFiled: July 9, 2012Date of Patent: November 18, 2014Assignee: LG Chem, Ltd.Inventors: Sungjong Kim, Jaehan Jung, BongTae Kim, Hong-Jeong Kim
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Patent number: 8703340Abstract: Provided is a lithium secondary battery with enhanced energy density including a cathode using a cathode active material containing lithium mixed transition metal oxide absorbing and discharging lithium ions, wherein a final discharge voltage is in the range of about 1.5 V to about 2.75 V. A final discharge voltage can be reduced to 1.5 V to 2.75 V from 3.0 V by using various lithium mixed transition metal oxides as a cathode active material, or by using the various lithium mixed transition metal oxides with the LCO-based cathode material mixed. Compared to typical LCO-based cathode materials of which capacity and energy density do not change even if a final discharge voltage is decreased, a cathode material of the present invention results in further improving capacity by 10-20% as the final discharge voltage is decreased.Type: GrantFiled: February 16, 2010Date of Patent: April 22, 2014Assignee: LG Chem, Ltd.Inventors: Hong Jeong Kim, Cha Hun Ku, Soo Ryoung Kim, Hong Kyu Park
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Publication number: 20120276441Abstract: A cylindrical battery constructed in a structure in which a crimp region is gently bent, such that the crimp region surrounds a gasket located at the inside of the crimp region, a bent front end is continuously bent twice to press the gasket, to be in the form of a compound curve. Under external physical impacts, such as vibration or dropping, applied to the battery, and when the internal pressure of the battery increases, the sealed portions are restrained from being separated from each other, thereby preventing the leakage of an electrolyte and thus greatly improving the safety of the battery. Furthermore, it is possible to minimize the deformation of the container, such as wrinkles, which may be formed due to failure to form the bent area gently when bending the front end of the crimp region with a small radius of curvature.Type: ApplicationFiled: July 9, 2012Publication date: November 1, 2012Inventors: Sungjong Kim, Jaehan Jung, BongTae Kim, Hong-Jeong Kim
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Publication number: 20120028134Abstract: Provided is a lithium secondary battery with enhanced energy density including a cathode using a cathode active material containing lithium mixed transition metal oxide absorbing and discharging lithium ions, wherein a final discharge voltage is in the range of about 1.5 V to about 2.75 V. A final discharge voltage can be reduced to 1.5 V to 2.75 V from 3.0 V by using various lithium mixed transition metal oxides as a cathode active material, or by using the various lithium mixed transition metal oxides with the LCO-based cathode material mixed. Compared to typical LCO-based cathode materials of which capacity and energy density do not change even if a final discharge voltage is decreased, a cathode material of the present invention results in further improving capacity by 10-20% as the final discharge voltage is decreased.Type: ApplicationFiled: February 16, 2010Publication date: February 2, 2012Applicant: LG CHEM, LTD.Inventors: Hong Jeong Kim, Cha Hun Ku, Soo Ryoung Kim, Hong Kyu Park
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Publication number: 20110104523Abstract: A cap assembly of a cylindrical rechargeable battery includes an integrated gasket obtained by integrating a first gasket covering a top cap, a PTC element, and a safety vent and a second gasket covering a CID. The rechargeable battery including the cap assembly has the advantages of increasing a contact area between a safety vent and a gasket by integrating the existing dual-gasket structure to thereby increase a sealing effect, increasing a short circuit reactivity of the CID by freely changing the gasket structure according to the diameter of the current interrupting member to thereby improve stability, simplify components, and reduce a production unit cost.Type: ApplicationFiled: June 11, 2010Publication date: May 5, 2011Applicant: LG CHEM, LTDInventors: Je Jun Lee, Sung Jong Kim, Cha Hun Ku, Hong-Jeong Kim
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Publication number: 20100021812Abstract: Disclosed herein is a cylindrical battery constructed in a structure in which a crimp region, at which a cap assembly is mounted to an open upper end of a cylindrical container having an electrode assembly mounted therein, is formed at the upper end of the container, wherein the crimp region is constructed in a structure in which the upper end of the crimp region is gently bent, such that the crimp region surrounds a gasket located at the inside of the crimp region, a bent front end is continuously bent twice to press the gasket, while the bent front end extends inward, such that a radius of curvature (R1) of the first bent area is less than a radius of curvature (R2) of the second bent area. The cylindrical battery according to the present invention is constructed such that the upper end of the crimp region of the cylindrical container is continuously bent twice in a predetermined condition.Type: ApplicationFiled: November 7, 2007Publication date: January 28, 2010Applicant: LG Chem, Ltd.Inventors: Sungjong Kim, Jeahan Jung, Bong Tae Kim, Hong-Jeong Kim