Patents by Inventor Eun Joo Park
Eun Joo 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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Patent number: 11977329Abstract: A photosensitive composition including a quantum dot dispersion, a reactive compound having at least two thiol groups, a photopolymerizable monomer having a carbon-carbon double bond, and a photoinitiator, wherein the quantum dot dispersion includes a carboxylic acid group-containing polymer and a quantum dot dispersed in the carboxylic acid group containing polymer, and wherein the carboxylic acid group-containing polymer includes a copolymer of a monomer combination including a first monomer having a carboxylic acid group and a carbon-carbon double bond and a second monomer having a carbon-carbon double bond and a hydrophobic moiety and not having a carboxylic acid group.Type: GrantFiled: March 19, 2021Date of Patent: May 7, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO, LTD.Inventors: Shang Hyeun Park, Hojeong Paek, Eun Joo Jang, Shin Ae Jun
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Publication number: 20240142744Abstract: A lens module is provided. The lens module includes a first lens, a second lens, and a third lens sequentially disposed from an object side to an imaging side, a first spacing member disposed between the first lens and the second lens and having a first passage extending in a direction that intersects an optical axis, a second spacing member disposed between the second lens and the third lens and having a second passage extending in a direction that intersects the optical axis, and a lens barrel configured to accommodate the first lens, the second lens, the third lens, the first spacing member and the second spacing member, and configured to have a first connection passage disposed on an inner side surface and connected to the first passage and the second passage.Type: ApplicationFiled: September 6, 2023Publication date: May 2, 2024Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Eun Chong LEE, Hwan Soo PARK, Kyu Min CHAE, Hyuk Joo KIM
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Publication number: 20240133572Abstract: The present invention relates to a system for diagnosis and management of indoor air quality, and more particularly to a system for diagnosis and management of indoor air quality which is capable of obtaining and analyzing air quality data by measuring the indoor air quality of a vehicle or accommodation space and of detecting smoking or non-smoking, the type of smoking, and an abnormal situation by diagnosing at least one of indoor smoking and smoking types. In addition, the present invention relates to a technology for facilitating the management of accommodation by efficiently diagnosing indoor air quality.Type: ApplicationFiled: November 25, 2021Publication date: April 25, 2024Applicant: AirDeep Co., Ltd.Inventors: Yoo Sin KIM, Eun Joo PARK, Jung Hoon SHIN, Tae Yun KIM, Kun Wook KOH
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Patent number: 11958998Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.Type: GrantFiled: May 5, 2021Date of Patent: April 16, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Ha Il Kwon, Tae Gon Kim, Shang Hyeun Park, Eun Joo Jang, Shin Ae Jun, Garam Park
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Publication number: 20240116920Abstract: Provided is a novel JAK-specific inhibitor compound and a method for preparing the same. The compound of the provided can exhibit therapeutic effects on a variety of diseases, for example, inflammatory diseases, autoimmune diseases, myeloproliferative diseases, and human cancers due to its ability to regulate signal transduction at the level of JAK kinases. In particular, due to its high selectivity for JAK1, the compound of the provided can exhibit better therapeutic effects on inflammatory diseases and autoimmune diseases at a low dose and with fewer side effects and can be expected to be effective in preventing and treating liver fibrosis.Type: ApplicationFiled: November 29, 2021Publication date: April 11, 2024Inventors: Soo Sung KANG, Eun Sun PARK, Eun Hee PARK, Sun Joo LEE, Seung Hee HAN
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Patent number: 11957046Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.Type: GrantFiled: September 6, 2019Date of Patent: April 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Moon Gyu Han, Dae Young Chung, Kwanghee Kim, Eun Joo Jang, Chan Su Kim, Kun Su Park, Won Sik Yoon
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Publication number: 20240110170Abstract: The present disclosure relates to a modified polypeptide having xylanase activity and the use thereof.Type: ApplicationFiled: December 15, 2021Publication date: April 4, 2024Applicant: CJ CHEILJEDANG CORPORATIONInventors: Tae Joo YANG, Jihyun SHIM, Eun Jung CHOI, Byung-sam SON, Jae Yong PARK
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Patent number: 11935984Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.Type: GrantFiled: December 14, 2022Date of Patent: March 19, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong Seok Han, Sung Woo Kim, Jin A Kim, Tae Hyung Kim, Kun Su Park, Yuho Won, Jeong Hee Lee, Eun Joo Jang, Hyo Sook Jang
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Patent number: 11925043Abstract: A quantum dot light-emitting device including first electrode and a second electrode, a quantum dot layer between the first electrode and the second electrode, a first electron transport layer and a second electron layer disposed between the quantum dot layer and the second electrode. The second electron transport layer is disposed between the quantum dot layer and the first electron transport layer, wherein each of the first electron transport layer and the second electron transport layer includes an inorganic material. A lowest unoccupied molecular orbital energy level of the second electron transport layer is shallower than a lowest unoccupied molecular orbital energy level of the first electron transport layer, and a lowest unoccupied molecular orbital energy level of the quantum dot layer is shallower than a lowest unoccupied molecular orbital energy level of the second electron transport layer. An electronic device including the quantum dot light-emitting device.Type: GrantFiled: October 16, 2020Date of Patent: March 5, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Moon Gyu Han, Heejae Lee, Eun Joo Jang, Tae Ho Kim, Kun Su Park, Won Sik Yoon, Hyo Sook Jang
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Patent number: 11826746Abstract: The electrochemical energy conversion system of the present disclosure includes an anode, a cathode, and an ion exchange membrane including a polymer having an aromatic polymer chain and an alkylated substrate including an alkyl chain, and at least one ionic group. The alkylated substrate is bound to at least one aromatic group in the polymer chain via Friedel-Crafts alkylation of the at least one aromatic group. The alkylation reaction utilizes a haloalkylated tertiary alcohol or a haloalkylated alkene as a precursor. In the presence of an acid catalyst, a carbocation is generated in the precursor which reacts with the aromatic rings of the polymer chain. The at least one ionic group is then replaced with a desired cationic or anionic group using a substitution reaction. The membranes exhibit advantageous stability achieved through a simplified and scalable reaction scheme.Type: GrantFiled: April 8, 2022Date of Patent: November 28, 2023Assignee: Rensselaer Polytechnic InstituteInventors: Chulsung Bae, Eun Joo Park, Sangtaik Noh, Michael Pagels
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Publication number: 20230250207Abstract: Disclosed herein in various embodiments are aryl-ether free polyaromatic polymers based on random copolymer architecture with two, three, or more aromatic ring components and methods of preparing those polymers. The polymers of the present disclosure can be used as ion exchange membranes, e.g., as anion exchange membranes, and ionomer binders in alkaline electrochemical devices.Type: ApplicationFiled: February 6, 2023Publication date: August 10, 2023Applicant: ORION POLYMER CORP.Inventors: Chulsung Bae, Gregory Kline, Bharat Shrimant, Ding Tian, Xiaofeng Wang, Yu Seung Kim, Eun Joo Park, Santosh Adhikari
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Patent number: 11621433Abstract: Hydrocarbon proton exchange membranes are disclosed that are composed of a material including a hydrophobic main chain, and acidic side chains. The main chain includes a polyaryl structure that is substantially free of ether linkages and also includes a fluoromethyl substituted carbon. The acidic side chains include a hydrocarbon tether terminated by a strongly acidic group, such as a fluoroalkyl sulfonate group. Chemical stability of the material is increased by removing the ether linkages from the main chain. The hydrophobic main chain and substantially hydrophilic side chains create a phase-separated morphology that affords enhanced transport of protons and water across the membrane even at low relative humidity levels. These materials are advantageous as membranes for use in fuel cells, redox flow batteries, water hydrolysis systems, sensors, electrochemical hydrogen compressors, actuators, water purifiers, gas separators, etc.Type: GrantFiled: December 20, 2017Date of Patent: April 4, 2023Assignee: RENSSELAER POLYTECHNIC INSTITUTEInventors: Chulsung Bae, Eun Joo Park, Junyoung Han
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Patent number: 11476485Abstract: A polyaromatic electrolyte for a fuel cell electrode includes a structure represented by Formula 1, wherein in Formula 1, Ar is a neutral unit represented by one of Formula 2A and Formula 2B: The fuel cell electrode may include a catalyst suspended in the polyaromatic electrolyte.Type: GrantFiled: May 31, 2019Date of Patent: October 18, 2022Assignee: TRIAD NATIONAL SECURITY, LLCInventors: Eun Joo Park, Yu Seung Kim, Sandipkumar Maurya
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Publication number: 20220266239Abstract: The electrochemical energy conversion system of the present disclosure includes an anode, a cathode, and an ion exchange membrane including a polymer having an aromatic polymer chain and an alkylated substrate including an alkyl chain, and at least one ionic group. The alkylated substrate is bound to at least one aromatic group in the polymer chain via Friedel-Crafts alkylation of the at least one aromatic group. The alkylation reaction utilizes a haloalkylated tertiary alcohol or a haloalkylated alkene as a precursor. In the presence of an acid catalyst, a carbocation is generated in the precursor which reacts with the aromatic rings of the polymer chain. The at least one ionic group is then replaced with a desired cationic or anionic group using a substitution reaction. The membranes exhibit advantageous stability achieved through a simplified and scalable reaction scheme.Type: ApplicationFiled: April 8, 2022Publication date: August 25, 2022Inventors: Chulsung Bae, Eun Joo Park, Sangtaik Noh, Michael Pagels
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Patent number: 11335932Abstract: The present disclosure provides phosphonated polymers that can be used, for example, as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells, and more particularly for high-temperature PEM fuel cells. High-temperature PEM fuel cells that use phosphonated polymers of the present disclosure suffer from reduced or no acid leaching because, in at least some examples, phosphonic acid moieties are covalently bound to the backbone of the polymers. A phosphonated polymer include a backbone having one or more aromatic monomers, with each aromatic monomer having one or more phosphonic acid groups. A phosphonic acid group may include phosphonic acid or a functional group that is hydrolysable into phosphonic acid.Type: GrantFiled: May 8, 2020Date of Patent: May 17, 2022Assignee: Triad National Security, LLCInventors: Eun Joo Park, Yu Seung Kim
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Patent number: 11130005Abstract: The present invention relates to a composition containing extracellular vesicles derived from plant juice, wherein the extracellular vesicles have excellent skin condition-improving effects such as skin whitening, moisturizing and wrinkle reducing effects and exhibits an excellent effect of preventing hair loss by promotion of hair growth and regrowth, and the like.Type: GrantFiled: September 23, 2016Date of Patent: September 28, 2021Inventors: Won Jong Lee, Eun Wook Choi, Su Kim, Eun Young Woo, Eun Joo Park, Ji Hyun Kim, Su Yeong Jeong
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Publication number: 20200358120Abstract: The present disclosure provides phosphonated polymers that can be used, for example, as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells, and more particularly for high-temperature PEM fuel cells. High-temperature PEM fuel cells that use phosphonated polymers of the present disclosure suffer from reduced or no acid leaching because, in at least some examples, phosphonic acid moieties are covalently bound to the backbone of the polymers. A phosphonated polymer include a backbone having one or more aromatic monomers, with each aromatic monomer having one or more phosphonic acid groups. A phosphonic acid group may include phosphonic acid or a functional group that is hydrolysable into phosphonic acid.Type: ApplicationFiled: May 8, 2020Publication date: November 12, 2020Applicant: Triad National Security, LLCInventors: Eun Joo Park, Yu Seung Kim
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Publication number: 20200254044Abstract: The present invention relates to various uses of a composition comprising plant-derived extracellular vesicles.Type: ApplicationFiled: September 28, 2018Publication date: August 13, 2020Inventors: Soo Young Jung, Eun Joo Park, Eun Wook Choi, Won Jong Lee
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Patent number: 10632161Abstract: The present invention provides a method for ameliorating or treating inflammatory bowel disease (IBD) and/or irritable bowel syndrome (IBS), comprising administering extracellular vesicles derived from Kefir grains in a mammal in need thereof. The present invention also provides a pharmaceutical composition for ameliorating or treating IBD and/or IBS or a functional food composition for ameliorating or improving IBD and/or IBS, comprising said extracellular vesicles derived from Kefir grains as an active ingredient.Type: GrantFiled: May 23, 2019Date of Patent: April 28, 2020Assignee: PROSTEMICS CO. LTD.Inventors: Eun-Joo Park, Min-Koo Seo, Seong-Yeol Ko, Eun-Wook Choi, Won-Jong Lee
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Publication number: 20200091535Abstract: Hydrocarbon proton exchange membranes are disclosed that are composed of a material including a hydrophobic main chain, and acidic side chains. The main chain includes a polyaryl structure that is substantially free of ether linkages and also includes a fluoromethyl substituted carbon. The acidic side chains include a hydrocarbon tether terminated by a strongly acidic group, such as a fluoroalkyl sulfonate group. Chemical stability of the material is increased by removing the ether linkages from the main chain. The hydrophobic main chain and substantially hydrophilic side chains create a phase-separated morphology that affords enhanced transport of protons and water across the membrane even at low relative humidity levels. These materials are advantageous as membranes for use in fuel cells, redox flow batteries, water hydrolysis systems, sensors, electrochemical hydrogen compressors, actuators, water purifiers, gas separators, etc.Type: ApplicationFiled: December 20, 2017Publication date: March 19, 2020Applicant: RENSSELAER POLYTECHNIC INSTITUTEInventors: Chulsung BAE, Eun Joo PARK, Junyoung HAN