Patents by Inventor Kyung-Hwa Park
Kyung-Hwa Park 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: 20240341189Abstract: Disclosed are a polycyclic compound with a specific fused ring structure and an organic light emitting device including a light emitting layer that employs the polycyclic compound. The use of the polycyclic compound ensures significantly long lifetime and improved luminous efficiency of the device.Type: ApplicationFiled: March 27, 2024Publication date: October 10, 2024Inventors: Ji-hwan Kim, Kyung-Hwa Park, Hyeon-jun Jo, Seong-eun Woo, Soo-kyung Kang, Da-Yeon Lee, Hui-Jae Choi, Ji-hyun Lee, Sung-hoon Joo
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Patent number: 12073902Abstract: A method for operating a memory includes determining to perform an error correction operation; determining whether to perform an error correction operation; generating an internal address when the error correction operation is performed; reading data from memory cells that are selected based on the internal address and an error correction code corresponding to the data; performing an error correction operation on the data based on the error correction code to produce an error-corrected data; writing the error-corrected data and an error correction code corresponding to the error-corrected data into the memory cells; determining one or more regions among regions in the memory as a repair-requiring region based on an error detected when the error correction operation is performed; receiving a first command; backing up the data and the error correction code into a redundant region in response to the first command; and repairing the repair-requiring region with the redundant region.Type: GrantFiled: December 8, 2022Date of Patent: August 27, 2024Assignee: SK hynix Inc.Inventors: Kyung Whan Kim, Sun Hwa Park, Kee Yun Kim, Sung Joo Ha, Ah Reum Han
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Publication number: 20240282951Abstract: A cathode active material precursor for a lithium secondary battery includes nickel and at least one metal except for nickel. The cathode active material precursor includes primary particles having a major axis length of 500 nm or less and an aspect ratio in a range from 1.0 to 3.0. A volume ratio of micropores having a pore diameter of 2 nm or less relative to a total pore volume is 1.4% or less.Type: ApplicationFiled: January 31, 2024Publication date: August 22, 2024Inventors: Yeong Bin YOO, Sung Soon PARK, Jong Hwa KIM, Kyung Bin YOO, Ju Wook LEE
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Publication number: 20240258182Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.Type: ApplicationFiled: April 12, 2024Publication date: August 1, 2024Applicant: Amkor Technology Singapore Holding Pte. Ltd.Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee, Sang Goo Kang, Kyung Rok Park
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Patent number: 12042774Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.Type: GrantFiled: September 18, 2023Date of Patent: July 23, 2024Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Seung Min Yang, Kyung Hoon Kim, Gun Hee Kim, Young Kyu Jeong, O Hyung Kwon, Chan Bin Mo, Yong Su Jo, Hye Min Park, Gwang Hwa Jin
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Patent number: 11925108Abstract: An object of the present invention is to provide an organic compound that has excellent properties, with excellent hole injection and transport performance, electron blocking capability, and high stability in a thin film state, and furthermore to provide a highly efficient and highly durable organic EL device by using this compound. The present invention relates to a compound having a triarylamine structure and being represented by the structural formula (A-1) below, where A, B, and C may be the same or different, and each represent a group represented by the structural formula (B-1) below, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group, where at least one of A, B, and C is not the group represented by the structural formula (B-1) below. (For the symbols and the like in the formulae, see the descriptions in the specification.Type: GrantFiled: June 20, 2019Date of Patent: March 5, 2024Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Takuya Uehara, Kouki Kase, Kyung-Hwa Park, Yuta Hirayama
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Publication number: 20240049595Abstract: An object of the present invention is to provide a compound with a high refractive index at a wavelength in range of 450 nm to 750 nm in a capping layer to improve light extraction efficiency of an organic EL device. The present invention was achieved by focusing on the fact that a heterocyclic compound has excellent thin film stability and durability and is able improve the refractive index by adjusting the molecular structures, and planning molecule, and an organic EL device having excellent luminous efficiency was obtained by using this compound as a material for constituting a capping layer.Type: ApplicationFiled: December 2, 2021Publication date: February 8, 2024Applicant: Hodogaya Chemical Co., Ltd.Inventors: Takeshi Yamamoto, Kouki Kase, Yuta Hirayama, Kyung-Hwa Park, Shuichi Hayashi
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Publication number: 20230271098Abstract: The present description relates to an assembly type toy. The assembly type toy of the present description includes: a first toy including a first hexahedral block, wherein one or more first male type blocks are mounted on at least one surface of the first hexahedral block; a second toy including a second hexahedral block, wherein one or more first female type blocks are mounted on at least one surface of the second hexahedral block, and the first female type blocks each have an accommodation hole provided therein to accommodate the first male type blocks; and a third toy including a pair of hexahedral blocks that come in surface contact with each other, wherein one or more second male type blocks are mounted on at least one surface of one block of the pair of hexahedral blocks, one or more second female type blocks are mounted on at least one surface of the other block, and the second female type blocks each have an accommodation hole provided therein to accommodate the first male type blocks.Type: ApplicationFiled: July 30, 2020Publication date: August 31, 2023Inventor: Kyung Hwa PARK
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Publication number: 20230068684Abstract: Disclosed is a polycyclic compound that can be employed in various organic layers of an organic electroluminescent device. Also disclosed is an organic electroluminescent device including the polycyclic compound. The organic electroluminescent device includes a light emitting layer employing the polycyclic compound as a dopant and an anthracene derivative having a characteristic structure and characteristic substituents as a host. The use of the polycyclic compound significantly improves the color purity, luminous efficiency, and life characteristics of the organic electroluminescent device and makes the organic electroluminescent device highly efficient and long lasting.Type: ApplicationFiled: July 12, 2022Publication date: March 2, 2023Applicant: SFC CO., LTDInventors: Sung-hoon JOO, Bong-ki SHIN, Ji-hwan KIM, Kyung-hwa PARK, Hyeon-jun JO, Seong-eun WOO, Sung-eun CHOI, Soo-kyung KANG
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Publication number: 20210210693Abstract: An object of the present invention is to provide an organic compound that has excellent properties, with excellent hole injection and transport performance, electron blocking capability, and high stability in a thin film state, and furthermore to provide a highly efficient and highly durable organic EL device by using this compound. The present invention relates to a compound having a triarylamine structure and being represented by the structural formula (A-1) below, where A, B, and C may be the same or different, and each represent a group represented by the structural formula (B-1) below, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group, where at least one of A, B, and C is not the group represented by the structural formula (B-1) below. (For the symbols and the like in the formulae, see the descriptions in the specification.Type: ApplicationFiled: June 20, 2019Publication date: July 8, 2021Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Takuya UEHARA, Kouki KASE, Kyung-Hwa PARK, Yuta HIRAYAMA
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Patent number: 10749118Abstract: A heterocyclic compound is represented by Formula 1. In Formulae 1, 1a, and 1b, two adjacent groups among A1 to A8 are each independently connected with a respective * of Formulae 1a or 1b to form a ring, where each * is a carbon atom of Formula 1. An organic light-emitting device includes the heterocyclic compound.Type: GrantFiled: June 23, 2015Date of Patent: August 18, 2020Assignees: Samsung Display Co., Ltd., SFC Co., Ltd.Inventors: Mi-Kyung Kim, Kyung-Hwa Park, Bu-Bae Park, Ji-Hee Park, Bong-Ki Shin, Dong-Hyun Kim, Se-Hun Kim, Hwan-Hee Cho
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Patent number: 10651397Abstract: The present invention relates to an organic light emitting compound and an organic light emitting device comprising the same, and the organic light emitting device employing the organic light emitting compound according to the present invention can be driven at a lower voltage than existing devices employing a phosphorescent host material, and has excellent power efficiency, improved light emission efficiency, and long lifespan characteristics.Type: GrantFiled: October 10, 2014Date of Patent: May 12, 2020Assignee: SFC CO., LTD.Inventors: Bong-ki Shin, Bu-Bae Park, Ji-hee Park, Bong-hyang Lee, Kyung-Hwa Park
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Patent number: 10473666Abstract: The present invention relates to dye compounds represented by Formulae I and II, which are described in the specification. The dye compounds of the present invention have markedly improved quantum yields and emit strong fluorescence compared to existing cyanine dyes. Due to these advantages, the dye compounds of the present invention can find applications in various fields, for example, as probes for various biological systems where optical imaging is required. Particularly, the dye compounds of the present invention can be used as mitotrackers capable of labeling and tracking mitochondria. Therefore, the dye compounds of the present invention can be used to quantitatively image mitochondria in live tissues and cells. Furthermore, the dye compounds of the present invention can be applied as pH probes for measuring the pH of live cells.Type: GrantFiled: July 18, 2016Date of Patent: November 12, 2019Assignee: SFC CO., LTD.Inventors: Ju-man Song, Seon-Gi Min, Seung-Soo Lee, Do-min Lee, Kyung-Hwa Park, Moon-Chan Hwang, Bong-Ki Shin, Jong-Tae Je
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Publication number: 20180203015Abstract: The present invention relates to dye compounds represented by Formulae I and II, which are described in the specification. The dye compounds of the present invention have markedly improved quantum yields and emit strong fluorescence compared to existing cyanine dyes. Due to these advantages, the dye compounds of the present invention can find applications in various fields, for example, as probes for various biological systems where optical imaging is required. Particularly, the dye compounds of the present invention can be used as mitotrackers capable of labeling and tracking mitochondria. Therefore, the dye compounds of the present invention can be used to quantitatively image mitochondria in live tissues and cells. Furthermore, the dye compounds of the present invention can be applied as pH probes for measuring the pH of live cells.Type: ApplicationFiled: July 18, 2016Publication date: July 19, 2018Inventors: Ju-man SONG, Seon-Gi MIN, Seung-Soo LEE, Do-min LEE, Kyung-Hwa PARK, Moon-Chan HWANG, Bong-Ki SHIN, Jong-Tae JE
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Publication number: 20160260906Abstract: The present invention relates to an organic light emitting compound and an organic light emitting device comprising the same, and the organic light emitting device according to the present invention has excellent light emission efficiency and can be driven at low voltages, and thus have power efficiency and long lifespan characteristics.Type: ApplicationFiled: October 10, 2014Publication date: September 8, 2016Inventors: Bong-ki SHIN, Bu-Bae PARK, Ji-hee PARK, Bong-hyang LEE, Kyung-Hwa PARK
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Publication number: 20160248024Abstract: The present invention relates to an organic light emitting compound and an organic light emitting device comprising the same, and the organic light emitting device employing the organic light emitting compound according to the present invention can be driven at a lower voltage than existing devices employing a phosphorescent host material, and has excellent power efficiency, improved light emission efficiency, and long lifespan characteristics.Type: ApplicationFiled: October 10, 2014Publication date: August 25, 2016Inventors: Bong-ki SHIN, Bu-Bae PARK, Ji-hee PARK, Bong-hyang LEE, Kyung-Hwa PARK
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Patent number: 9402528Abstract: A dish washer is provided that includes a tub that defines a space for washing dishes, a water supply unit that has a water chamber where water supplied from the outside collects, to wash the dishes, a sump that is supplied with water from the water chamber and supplies wash water into the tub, and a heat exchange passage through which the wash water in the sump flows and exchanges heat with the water in the water chamber while flowing.Type: GrantFiled: May 31, 2011Date of Patent: August 2, 2016Assignee: LG Electronics Inc.Inventors: Moon Kee Chung, Kyung Hwa Park, Yong Jin Choi, Tae Hee Lee, Young Hwan Park, Hyo Seon Jang, Sang Heon Yoon, Jae Chul Lee
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Publication number: 20150380663Abstract: A heterocyclic compound is represented by Formula 1. In Formulae 1, 1a, and 1b, two adjacent groups among A1 to A8 are each independently connected with a respective * of Formulae 1a or 1b to form a ring, where each * is a carbon atom of Formula 1. An organic light-emitting device includes the heterocyclic compound.Type: ApplicationFiled: June 23, 2015Publication date: December 31, 2015Inventors: Mi-Kyung Kim, Kyung-Hwa Park, Bu-Bae Park, Ji-Hee Park, Bong-Ki Shin, Dong-Hyun Kim, Se-Hun Kim, Hwan-Hee Cho
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Publication number: 20120270465Abstract: The present disclosure relates to a toy, and particularly, to a magnet mounting component 30 for mounting magnets, and a magnet toy 2 having the same. Disclosed is a magnet mounting component 30 configured to rotatably accommodate a magnet 20 therein, wherein a closure part 32A to which the accommodated magnet 20 clings by an attraction force with an external magnet 20? is formed to be non-magnetic, and wherein a magnetic part M is formed of a material to which the accommodated magnet 20 can cling, and is formed on at least part rather than the closure part 32A.Type: ApplicationFiled: December 17, 2010Publication date: October 25, 2012Applicant: ORDA KOREA CO., LTD.Inventor: Kyung-Hwa Park
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Patent number: 8127830Abstract: An air conditioner is disclosed which includes a case including an external air inlet opening formed in a side of the case, a heat exchanger provided in the case, and a guide part which guides external air which enters the case through the external air inlet opening into an interior of the heat exchanger.Type: GrantFiled: August 27, 2007Date of Patent: March 6, 2012Assignee: LG Electronics Inc.Inventors: Jung Woo Lee, Kyung Hwa Park, Seok Ho Choi