Patents by Inventor Eung Gyu Kim
Eung Gyu 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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Patent number: 11973072Abstract: A display device includes: a base layer including a display area including an emission area and a non-emission area adjacent to the emission area, and a non-display area around the display area; a light emitting element in the emission area on the base layer; a color filter layer located above the light emitting element; and a light blocking pattern on the light emitting element and including a first light blocking pattern in the non-emission area and a second light blocking pattern in the non-display area. The first light blocking pattern and the second light blocking pattern are different in thickness from each other.Type: GrantFiled: June 24, 2021Date of Patent: April 30, 2024Assignee: Samsung Display Co., Ltd.Inventors: Eung Gyu Lee, Jin Suek Kim, Sae Ron Park, Seung Bo Shim, Ho Kil Oh, Jae Soo Jang
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Patent number: 11925920Abstract: The present invention relates to a catalyst for hydrogenation of an aromatic compound, which is capable of greatly reducing the inactivation of a catalyst by using a support including a magnesium-based spinel structure, and a preparation method therefor.Type: GrantFiled: October 16, 2018Date of Patent: March 12, 2024Assignee: HANWHA CHEMICAL CORPORATIONInventors: Eung Gyu Kim, Won Yong Kim, Jeong Hwan Chun, Young Jin Cho, Joung Woo Han, Hyo Suk Kim, Wan Jae Myeong, Ki Taeg Jung
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Publication number: 20230357498Abstract: The present disclosure relates to a method for preparing a copolyester. More specifically, the present disclosure relates to a method for preparing a copolyester that reduces the use of a cobalt-based coloring agent but minimizes yellowing, by using a specific thermal stabilizer.Type: ApplicationFiled: August 11, 2021Publication date: November 9, 2023Applicant: HANWHA SOLUTIONS CORPORATIONInventors: Eung Gyu KIM, Ho Seong NAM, Kyoung Won YIM, Ju Mi YUN
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Publication number: 20200316564Abstract: The present invention relates to a catalyst for hydrogenation of an aromatic compound, which is capable of greatly reducing the inactivation of a catalyst by using a support including a magnesium-based spinel structure, and a preparation method therefor.Type: ApplicationFiled: October 16, 2018Publication date: October 8, 2020Applicant: HANWHA CHEMICAL CORPORATIONInventors: Eung Gyu KIM, Won Yong KIM, Jeong Hwan CHUN, Young Jin CHO, Joung Woo HAN, Hyo Suk KIM, Wan Jae MYEONG, Ki Taeg JUNG
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Patent number: 9861712Abstract: Provided are a preparation method of iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles, iron oxide-based nanoparticles prepared by the same, and a T1 contrast agent including the same. More particularly, the disclosure describes a method for preparation of iron oxide nanoparticles having a extremely small and uniform size of 4 nm or less based on thermal decomposition of iron oleate complex, iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles prepared by the same, and a T1 contrast agent including iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles.Type: GrantFiled: August 5, 2011Date of Patent: January 9, 2018Assignee: Hanwha Chemical CorporationInventors: Taeg Hwan Hyeon, Byung Hyo Kim, No Hyun Lee, Eung Gyu Kim, Bong Sik Jeon, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong
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Patent number: 9771275Abstract: The present invention relates to a method for preparing uniform metal oxide nanoparticles. According to the preparation method of the present invention, it is possible to maintain the temperature and pressure inside the reactor in a stable and constant manner by removing water generated in the reaction step for forming metal oxide nanoparticles. Thus, the uniformity of nanoparticles formed is increased, and the reproducibility between batches can be increased even in a repeated process and and a large-scale reaction. Therefore, the preparation method of the present invention can be used to synthesize uniform nanoparticles reproducibly in large quantities.Type: GrantFiled: November 19, 2014Date of Patent: September 26, 2017Assignee: HANWHA CHEMICAL CORPORATIONInventors: Ju Young Park, Eung Gyu Kim, Wan Jae Myeong, Bong Sik Jeon, Eun Byul Kwon
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Patent number: 9757482Abstract: Provided are iron oxide nanocapsules for an MRI contrast agent having high contrast, in which a plurality of iron oxide nanoparticles having a hydrophobic ligand attached thereto are encapsulated in an encapsulation material including a biodegradable polymer and a surfactant, and which satisfy Relations 1, 2, 3, 4 and 5 below. Also a method of manufacturing the iron oxide nanocapsules is provided. 5?100*D?(IO)/C?(IO)??[Relation 1] 2.5?100*D?(Cap)/C?(Cap)??[Relation 2] 0.Type: GrantFiled: August 30, 2011Date of Patent: September 12, 2017Assignee: HANWHA CHEMICAL CORPORATIONInventors: Bong-Sik Jeon, Eung Gyu Kim, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong
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Publication number: 20160303163Abstract: Provided are a pharmaceutical composition including iron oxide nanoparticles for preventing or treating iron deficiency and iron deficiency anemia accompanied thereby, and a preparation method thereof.Type: ApplicationFiled: December 23, 2014Publication date: October 20, 2016Applicant: HANWHA CHEMICAL CORPORATIONInventors: Bong Sik JEON, Eun Byul KWON, Eung Gyu KIM, Wan Jae MYEONG, Ju Young PARK
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Publication number: 20160297687Abstract: The present invention relates to a method for preparing uniform metal oxide nanoparticles. According to the preparation method of the present invention, it is possible to maintain the temperature and pressure inside the reactor in a stable and constant manner by removing water generated in the reaction step for forming metal oxide nanoparticles. Thus, the uniformity of nanoparticles formed is increased, and the reproducibility between batches can be increased even in a repeated process and and a large-scale reaction. Therefore, the preparation method of the present invention can be used to synthesize uniform nanoparticles reproducibly in large quantities.Type: ApplicationFiled: November 19, 2014Publication date: October 13, 2016Inventors: Ju Young PARK, Eung Gyu KIM, Wan Jae MYEONG, Bong Sik JEON, Eun Byul KWON
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Patent number: 9457104Abstract: Disclosed are a composition including hydrophilic nanoparticles that have a monosaccharide-phosphate or a derivative thereof adhered to the surface thereof, a colloidal solution of the composition dispersed in water, and a magnetic resonance imaging contrast agent including the colloidal solution. According to the present invention, nanoparticles having biocompatibility and excellent water-dispersibility can be prepared by modifying the surface of inorganic nanoparticles. The prepared nanoparticles may be effectively used in a variety of applications including, for example, in vivo imaging applications such as an MRI contrast agent, nano-electronic convergence technologies such as a quantum dot light emitting device, biomedical applications such as hyperthermia, or the like. Moreover, compared to existing nanoparticles dispersed by a dispersion stabilizer known in the art, excellent dispersion stability and a relatively small hydrodynamic diameter may be attained.Type: GrantFiled: August 3, 2012Date of Patent: October 4, 2016Assignee: HANWHA CHEMICAL CORPORATIONInventors: Eung Gyu Kim, Bong-Sik Jeon, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong
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Patent number: 9028875Abstract: Provided is an iron oxide nanocapsule which has extremely excellent water dispersibility, which is very stable in the body and which has very excellent MRI contrast ability, a method of manufacturing the same, and an MRI contrast agent using the same. The method of manufacturing the iron oxide nanocapsule includes the steps of: thermally decomposing an iron complex to prepare hydrophobic ligand-bonded iron oxide nanoparticles; and encapsulating the hydrophobic ligand-bonded iron oxide nanoparticles by a carboxymethyldextrandodecylamine conjugate encapsulation material or a dextran-linoleic acid conjugate encapsulation material to form an iron oxide nanocapsule.Type: GrantFiled: August 31, 2011Date of Patent: May 12, 2015Assignee: Hanwha Chemical CorporationInventors: Eun Byul Kwon, Bong-Sik Jeon, Eung Gyu Kim, Ju Young Park, Wan Jae Myeong
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Patent number: 8906346Abstract: Provided are a contrast agent for contrast imaging lymph node, which includes iron oxide nanoparticles dispersed and stabilized in an aqueous medium by a mussel adhesive protein-mimetic copolymer, a method for contrast enhanced lymphography using the foregoing contrast agent, and a method for diagnosis of lymph node cancers using the foregoing contrast agent. Using such a mussel adhesive protein-mimetic copolymer, the surface of iron oxide is modified and dispersed well in water to prepare a colloidal solution, which in turn forms the contrast agent containing the colloidal solution. The inventive contrast agent does not have toxicity and is easily taken up to the lymph node to exhibit excellent contrast imaging effects. The contrast agent of the present invention is useful for diagnosis of metastatic cancers.Type: GrantFiled: June 20, 2012Date of Patent: December 9, 2014Assignee: Hanwha Chemical CorporationInventors: Ju Young Park, Wan Jae Myeong, Bong-Sik Jeon, Eung Gyu Kim, Eun Byul Kwon, Taeghwan Hyeon, Daishun Ling
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Publication number: 20140328768Abstract: Provided is an iron oxide nanocapsule which has extremely excellent water dispersibility, which is very stable in the body and which has very excellent MRI contrast ability, a method of manufacturing the same, and an MRI contrast agent using the same. The method of manufacturing the iron oxide nanocapsule includes the steps of: thermally decomposing an iron complex to prepare hydrophobic ligand-bonded iron oxide nanoparticles; and encapsulating the hydrophobic ligand-bonded iron oxide nanoparticles by a carboxymethyldextrandodecylamine conjugate encapsulation material or a dextran-linoleic acid conjugate encapsulation material to form an iron oxide nanocapsule.Type: ApplicationFiled: August 31, 2011Publication date: November 6, 2014Applicant: HANWHA CHEMICAL CORPORATIONInventors: Eun Byul Kwon, Bong Sik Jeon, Eung Gyu Kim, Ju Young Park, Wan Jae Myeong
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Publication number: 20140161734Abstract: Disclosed are a composition including hydrophilic nanoparticles that have a monosaccharide-phosphate or a derivative thereof adhered to the surface thereof, a colloidal solution of the composition dispersed in water, and a magnetic resonance imaging contrast agent including the colloidal solution. According to the present invention, nanoparticles having biocompatibility and excellent water-dispersibility can be prepared by modifying the surface of inorganic nanoparticles. The prepared nanoparticles may be effectively used in a variety of applications including, for example, in vivo imaging applications such as an MRI contrast agent, nano-electronic convergence technologies such as a quantum dot light emitting device, biomedical applications such as hyperthermia, or the like. Moreover, compared to existing nanoparticles dispersed by a dispersion stabilizer known in the art, excellent dispersion stability and a relatively small hydrodynamic diameter may be attained.Type: ApplicationFiled: August 3, 2012Publication date: June 12, 2014Applicant: HANWHA CHEMICAL CORPORATIONInventors: Eung Gyu Kim, Bong-Sik Jeon, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong
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Publication number: 20140023594Abstract: Provided are a contrast agent for contrast imaging lymph node, which includes iron oxide nanoparticles dispersed and stabilized in an aqueous medium by a mussel adhesive protein-mimetic copolymer, a method for contrast enhanced lymphography using the foregoing contrast agent, and a method for diagnosis of lymph node cancers using the foregoing contrast agent. Using such a mussel adhesive protein-mimetic copolymer, the surface of iron oxide is modified and dispersed well in water to prepare a colloidal solution, which in turn forms the contrast agent containing the colloidal solution. The inventive contrast agent does not have toxicity and is easily taken up to the lymph node to exhibit excellent contrast imaging effects. The contrast agent of the present invention is useful for diagnosis of metastatic cancers.Type: ApplicationFiled: June 20, 2012Publication date: January 23, 2014Applicant: HANWHA CHEMICAL CORPORATIONInventors: Ju Young Park, Wan Jae Myeong, Bong-Sik Jeon, Eung Gyu Kim, Eun Byul Kwon, Taeghwan Hyeon, Daishun Ling
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Publication number: 20130164222Abstract: Provided are a preparation method of iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles, iron oxide-based nanoparticles prepared by the same, and a T1 contrast agent including the same. More particularly, the disclosure describes a method for preparation of iron oxide nanoparticles having a extremely small and uniform size of 4 nm or less based on thermal decomposition of iron oleate complex, iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles prepared by the same, and a T1 contrast agent including iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles.Type: ApplicationFiled: August 5, 2011Publication date: June 27, 2013Applicant: Hanwha Chemical CorporationInventors: Taeg Hwan Hyeon, Byung Hyo Kim, No Hyun Lee, Eung Gyu Kim, Bong Sik Jeon, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong
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Publication number: 20130164223Abstract: Provided are iron oxide nanocapsules for an MRI contrast agent having high contrast, in which a plurality of iron oxide nanoparticles having a hydrophobic ligand attached thereto are encapsulated in an encapsulation material including a biodegradable polymer and a surfactant, and which satisfy Relations 1, 2, 3, 4 and 5 below. Also a method of manufacturing the iron oxide nanocapsules is provided. 5?100*D?(IO)/C ?(IO)??[Relation 1] 2.5?100*D?(Cap)/C ?(Cap)??[Relation 2] 0.Type: ApplicationFiled: August 30, 2011Publication date: June 27, 2013Applicant: HANWHA CHEMICAL CORPORATIONInventors: Bong-Sik Jeon, Eung Gyu Kim, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong