Patents by Inventor Hyun-Jung Choi
Hyun-Jung Choi 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: 20240128480Abstract: An exemplary embodiment of the present disclosure provides a separator for a fuel cell, which is stacked on a reaction layer including a membrane electrode assembly (MEA). The separator includes a plate body stacked on the reaction layer, a wave pattern provided on one surface of the plate body that faces the reaction layer, the wave pattern being configured to define a reaction channel disposed between the reaction layer and the plate body and provided in a first direction in which a reactant gas is supplied, so that the reactant gas flows along the reaction channel, and a land provided along a lateral end of the wave pattern and disposed to be in contact with the reaction layer, thereby obtaining an advantageous effect of improving performance and operational efficiency.Type: ApplicationFiled: December 20, 2022Publication date: April 18, 2024Applicant: HYUNDAI MOBIS Co., Ltd.Inventors: Sun Hwi KIM, Hyun Kyu CHOI, Bae Jung KIM, Chan Gi KIM, Hyun Jeong KIM, Ah Reum KIM
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Publication number: 20240130230Abstract: The present disclosure relates to a plurality of host materials, organic electroluminescent compounds, and organic electroluminescent devices comprising the same. By comprising specific combinations of compounds according to the present disclosure as the plurality of host materials or by comprising a compound according to the present disclosure, it is possible to provide organic electroluminescent devices having improved lifespan characteristics compared to conventional organic electroluminescent devices.Type: ApplicationFiled: August 8, 2023Publication date: April 18, 2024Inventors: Doo-Hyeon MOON, DaiKyu KIM, Hyo-Jung LEE, Yea-Mi SONG, Kyoung-Jin PARK, Hyun-Ju KANG, Ga-Won LEE, Mi-Ja LEE, Kyung-Hoon CHOI
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Publication number: 20240123386Abstract: A filter holder comprises: a plurality of filter frames disposed such that at least some thereof are adjacent to each other; and a folding member which supports filter frames, from among the plurality of filter frames, adjacent to each other so as to be rotatable with respect to each other. The folding member comprises: a folding part which has a predetermined thickness and is flexible so as to be foldable by means of rotation of the adjacent filter frames adjacent with respect to each other; and a plurality of edge parts which are connected to the respective sides of the folding part with the folding portion therebetween and rotate together with the adjacent filter frames, and wherein when viewed from a cross-section of the folding member, the edge parts may have a greater thickness than the folding part.Type: ApplicationFiled: January 28, 2022Publication date: April 18, 2024Applicant: COWAY CO.,LTD.Inventors: Yoon Hyuck CHOI, Hyun Kyu LEE, Jong Cheol KIM, Seung Ki KIM, Sung Sil KANG, Ju Hyun BAEK, Chan Jung PARK
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Patent number: 11944661Abstract: The present invention provides a pharmaceutical composition for prevention or treatment of a stress disease and depression, the pharmaceutical composition be safely useable without toxicity and side effects by using an extract of leaves of Vaccinium bracteatum Thunb., which is natural resource of Korea, so that the reduction of manufacturing and production costs and the import substitution and export effects can be expected through the replacement of a raw material for preparation with a plant inhabiting in nature.Type: GrantFiled: February 7, 2018Date of Patent: April 2, 2024Assignee: JEONNAM BIOINDUSTRY FOUNDATIONInventors: Chul Yung Choi, Dool Ri Oh, Yu Jin Kim, Eun Jin Choi, Hyun Mi Lee, Dong Hyuck Bae, Kyo Nyeo Oh, Myung-A Jung, Ji Ae Hong, Kwang Su Kim, Hu Won Kang, Jae Yong Kim, Sang O Pan, Sung Yoon Park, Rack Seon Seong
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Publication number: 20240100464Abstract: An air filter comprises: a first filter frame in which a plurality of first chambers are formed; a second filter frame in which a plurality of second chambers are formed and which is arranged at the rear of the first filter frame; and a filter material which is accommodated in the plurality of first chambers and the plurality of second chambers to filter air, wherein the first filter frame and the second filter frame are arranged so that, when seen from the front, the center of each of the plurality of second chambers is out of line with the center of each of the plurality of first chambers, in the vertical direction.Type: ApplicationFiled: January 28, 2022Publication date: March 28, 2024Applicant: COWAY CO., LTD.Inventors: Yoon Hyuck CHOI, Hyun Kyu LEE, Jong Cheol KIM, Seung Ki KIM, Sung Sil KANG, Ju Hyun BAEK, Chan Jung PARK
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Patent number: 11943976Abstract: A display device includes a substrate, a first conductive layer on the substrate, the first conductive layer including a data signal line, a first insulating layer on the first conductive layer, a semiconductor layer on the first insulating layer, the semiconductor layer including a first semiconductor pattern, a second insulating layer on the semiconductor layer, and a second conductive layer on the second insulating layer, the second conductive layer including a gate electrode disposed to overlap the first semiconductor pattern, a transistor first electrode disposed to overlap a part of the first semiconductor pattern, wherein the transistor first electrode is electrically connected to the data signal line through a contact hole that penetrates the first and second insulating layers, and a transistor second electrode disposed to overlap another part of the first semiconductor pattern.Type: GrantFiled: June 4, 2020Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung Sok Son, Woo Geun Lee, Seul Ki Kim, Kap Soo Yoon, Hyun Woong Baek, Jae Hyun Lee, Su Jung Jung, Jung Kyoung Cho, Seung Ha Choi, June Whan Choi
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Patent number: 11628164Abstract: Salsolinol is a metabolite of alcohol and is cytotoxic, so that the salsolinol has been studied as a diagnostic biomarker for a liver disease and a liver cancer, but the salsolinol has not been reported as a therapeutic agent for the liver disease or the liver cancer. Since the salsolinol regulates tumor-related genes and inflammation-related genes specifically for men, it is experimentally found that the salsolinol has an effect of alleviating a liver cancer and an alcoholic hepatitis. Therefore, the salsolinol is contained together with a pharmaceutically acceptable salt as an effective ingredient and is provided as a pharmaceutical composition for treating the liver cancer or a health functional food for preventing and improving the alcoholic liver disease to have an effect of treating the liver disease and the liver cancer or preventing and improving the liver disease and the liver cancer.Type: GrantFiled: November 6, 2020Date of Patent: April 18, 2023Assignee: Sungshin Women's University R&DB FoundationInventors: Hye Kyung Na, Hong Kyung Yang, Hyun Jung Choi
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Publication number: 20220110930Abstract: Salsolinol is a metabolite of alcohol and is cytotoxic, so that the salsolinol has been studied as a diagnostic biomarker for a liver disease and a liver cancer, but the salsolinol has not been reported as a therapeutic agent for the liver disease or the liver cancer. Since the salsolinol regulates tumor-related genes and inflammation-related genes specifically for men, it is experimentally found that the salsolinol has an effect of alleviating a liver cancer and an alcoholic hepatitis. Therefore, the salsolinol is contained together with a pharmaceutically acceptable salt as an effective ingredient and is provided as a pharmaceutical composition for treating the liver cancer or a health functional food for preventing and improving the alcoholic liver disease to have an effect of treating the liver disease and the liver cancer or preventing and improving the liver disease and the liver cancer.Type: ApplicationFiled: November 6, 2020Publication date: April 14, 2022Inventors: Hye Kyung NA, Hong Kyung YANG, Hyun Jung CHOI
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ANTIAGING COMPOSITION COMPRISING CYTOCHALASIN D OR SAG, AND METHOD FOR SCREENING ANTIAGING SUBSTANCE
Publication number: 20200345694Abstract: The present disclosure relates to an antiaging composition containing cytochalasin D or SAG, and a method for screening an antiaging substance, and provides a new antiaging substance and a new method for discovering a new antiaging substance. Thus, it is possible to greatly contribute to the development of beauty industries and to meeting demands related with beauty and antiaging, if the present disclosure is effectively used.Type: ApplicationFiled: July 24, 2018Publication date: November 5, 2020Applicant: AMOREPACIFIC CORPORATIONInventors: Hyun Jung CHOI, Hyoung June KIM, Ji Yong JUNG, Tae Ryong LEE -
Patent number: 10344260Abstract: The present invention relates to novel melanocytes and melanoblasts. In addition, the present invention relates to a novel method for producing melanocytes and melanoblasts. Specifically, provided is novel melanocytes of which gene expression, melanin content, and tyrosinase activity are different from those of conventional melanocytes. Even more specifically, provided is novel melanoblasts of which the gene expression, the melanin content the tyrosinase activity, and the protein expression are different from those of conventional melanocytes. Additionally, provided is a novel method for producing melanocytes or melanoblasts by culturing keratinocytes.Type: GrantFiled: September 27, 2012Date of Patent: July 9, 2019Assignee: AMOREPACIFIC CORPORATIONInventors: Eun Gyung Cho, Bum Ho Bin, Tae Ryong Lee, Ji Yeon Han, Hyun Jung Choi
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Patent number: 10045926Abstract: The present invention relates to a composition containing a chemokine, particularly, an interferon-inducible T-cell alpha chemoattractant (ITACT) which can decrease the gene expression of a factor related to melanin pigment production in melanocytes, thereby exhibiting a skin whitening effect.Type: GrantFiled: July 24, 2015Date of Patent: August 14, 2018Assignee: Amorepacific CorporationInventors: Eun Kyung Lee, Ji Yeon Han, Eun Gyung Cho, Tae Ryong Lee, Hyun Jung Choi
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Patent number: 9867772Abstract: Provided is a cosmetic composition for improving skin elasticity containing Phyllanthus urinaria extract and a polymersome in which an anti-aging peptide is stabilized as active ingredients. The cosmetic composition of the present disclosure is efficacious in improving skin wrinkles, restoring skin elasticity and increasing skin water content, and thus is effective for improving skin elasticity.Type: GrantFiled: October 3, 2014Date of Patent: January 16, 2018Assignee: AMOREPACIFIC CORPORATIONInventors: Eui Dong Son, Dae Jin Min, Hui Kyoung Chang, Hyun Jung Choi, Seong A Cho, Ji Hyun Kim, Tae Ryong Lee
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Publication number: 20180008530Abstract: Provided is a cosmetic composition for improving skin elasticity containing Phyllanthus urinaria extract and a polymersome in which an anti-aging peptide is stabilized as active ingredients. The cosmetic composition of the present disclosure is efficacious in improving skin wrinkles, restoring skin elasticity and increasing skin water content, and thus is effective for improving skin elasticity.Type: ApplicationFiled: October 3, 2014Publication date: January 11, 2018Applicant: AMOREPACIFIC CORPORATIONInventors: Eui Dong SON, Dae Jin MIN, Hui Kyoung CHANG, Hyun Jung CHOI, Seong A CHO, Ji Hyun KIM, Tae Ryong LEE
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Publication number: 20170304175Abstract: The present disclosure discloses a novel use of genistein, epigallocatechin gallate (EGCG), derivatives thereof, isomers thereof, pharmaceutically acceptable salts thereof, prodrugs thereof, hydrates thereof and solvates thereof. A composition containing genistein, epigallocatechin gallate, derivatives thereof isomers thereof, pharmaceutically acceptable salts thereof, prodrugs thereof, hydrates thereof or solvates thereof reduces the expression of factors related to increase of melanin producing ability, reduces the expression of senescence marker proteins and regulates the expression of enzymes involved in melanin production, and thus may have an effect of rejuvenating cells including melanocytes.Type: ApplicationFiled: November 27, 2015Publication date: October 26, 2017Applicant: AMOREPACIFIC CORPORATIONInventors: Eun Kyung LEE, Myeong Jin GOH, Hyun Jung CHOI, Eun Gyung CHO, Tae Ryong LEE
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Publication number: 20170209358Abstract: The present invention relates to a composition containing a chemokine, particularly, an interferon-inducible T-cell alpha chemoattractant (ITACT) which can decrease the gene expression of a factor related to melanin pigment production in melanocytes, thereby exhibiting a skin whitening effect.Type: ApplicationFiled: July 24, 2015Publication date: July 27, 2017Applicant: Amorepacific CorporationInventors: Eun Kyung LEE, Ji Yeon HAN, Eun Gyung CHO, Tae Ryong LEE, Hyun Jung CHOI
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Patent number: 9417136Abstract: The present invention relates to a method for calculating a thermal protection factor, wherein the method comprises the steps of: applying heat to a first area coated with a thermal protection material, and a second area not coated with the thermal protection material; measuring the respective saturation temperatures of the first area and second area; calculating a first energy by dividing the energy corresponding to the heat applied to the first area by the saturation temperature of the first area; calculating a second energy by dividing the energy corresponding to the heat applied to the second area by the saturation temperature of the second area; and calculating the thermal protection factor of a thermal protection material by dividing the first energy by the second energy or dividing the difference between the first energy and the second energy by the first energy.Type: GrantFiled: February 15, 2012Date of Patent: August 16, 2016Assignees: AMOREPACIFIC CORPORATION, SNU R&DB FOUNDATIONInventors: Eui Dong Son, Hyeon Chung Kim, Ji Hyun Kim, Hyun Jung Choi, Gae Won Nam, Tae Ryong Lee, Jin Ho Chung, Seon Pil Jin
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Patent number: 9303261Abstract: Disclosed is a composition for a whitening effect or for the prevention of gray hair, which includes antisense nucleic acid molecules of SEQ ID NO: 2, wherein the composition has an miRNA of SEQ ID NO: 1 or a base sequence complementary thereto. Also disclosed is a method for controlling chromogenesis in test materials and for screening for expression control materials of chromogenic genes. The composition and the screening methodcan be used for the whitening effect or for the prevention of gray hair.Type: GrantFiled: June 13, 2012Date of Patent: April 5, 2016Assignee: Amorepacific CorporationInventors: Kyu Han Kim, Hyun Jung Choi, Bum Ho Bin, Tae Ryong Lee
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Publication number: 20150044265Abstract: Provided is a cosmetic composition for improving skin elasticity containing Phyllanthus urinaria extract and a polymersome in which an anti-aging peptide is stabilized as active ingredients. The cosmetic composition of the present disclosure is efficacious in improving skin wrinkles, restoring skin elasticity and increasing skin water content, and thus is effective for improving skin elasticity.Type: ApplicationFiled: October 3, 2014Publication date: February 12, 2015Applicant: AMOREPACIFIC CORPORATIONInventors: Eui Dong SON, Dae Jin MIN, Hui Kyoung CHANG, Hyun Jung CHOI, Seong A CHO, Ji Hyun KIM, Tae Ryong LEE
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Publication number: 20140227779Abstract: The present invention relates to novel melanocytes and melanoblasts. In addition, the present invention relates to a novel method for producing melanocytes and melanoblasts. Specifically, provided is novel melanocytes of which gene expression, melanin content, and tyrosinase activity are different from those of conventional melanocytes. Even more specifically, provided is novel melanoblasts of which the gene expression, the melanin content the tyrosinase activity, and the protein expression are different from those of conventional melanocytes. Additionally, provided is a novel method for producing melanocytes or melanoblasts by culturing keratinocytes.Type: ApplicationFiled: September 27, 2012Publication date: August 14, 2014Applicant: AMOREPACIFIC CORPORATIONInventors: Eun Gyung Cho, Bum Ho Bin, Tae Ryong Lee, Ji Yeon Han, Hyun Jung Choi
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Publication number: 20140134636Abstract: Disclosed is a composition for a whitening effect or for the prevention of gray hair, which includes antisense nucleic acid molecules of SEQ ID NO: 2, wherein the composition has an miRNA of SEQ ID NO: 1 or a base sequence complementary thereto. Also disclosed is a method for controlling chromogenesis in test materials and for screening for expression control materials of chromogenic genes. The composition and the screening method can be used for the whitening effect or for the prevention of gray hair.Type: ApplicationFiled: June 13, 2012Publication date: May 15, 2014Applicant: AMOREPACIFIC CORPORATIONInventors: Kyu Han Kim, Hyun Jung Choi, Bum Ho Bin, Tae Ryong Lee