Patents by Inventor Hyung-Woo Lee
Hyung-Woo Lee 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: 20240150504Abstract: The present disclosure relates to a method of preparing a polymer, which includes: adding an alkyl-substituted aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a reactor and initiating polymerization; and performing polymerization while continuously adding an alkyl-substituted aromatic vinyl-based monomer and a multifunctional initiator to the reactor, wherein the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is initiated when a polymerization conversion rate is 10 to 30%, and the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is terminated when a polymerization conversion rate is 70 to 80%.Type: ApplicationFiled: January 17, 2023Publication date: May 9, 2024Applicant: LG CHEM, LTD.Inventors: Sung Won HONG, Hyung Sub LEE, Dae Woo LEE, Woo Ri KIM, Min Cheol JU, Min Seung SHIN, In Soo KIM
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Publication number: 20240154166Abstract: The present disclosure relates to a lithium secondary battery in which an abnormal voltage drop phenomenon is improved. The lithium secondary battery comprises a negative electrode comprising a negative electrode active material, a positive electrode comprising a positive electrode active material represented by Formula 1, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution comprises a lithium salt, a non-aqueous organic solvent, a compound represented by Formula 2 as a first additive, and lithium difluorophosphate as a second additive: LiaNixCOyM1zM2wO2??[Formula 1] wherein all the variables are described herein.Type: ApplicationFiled: October 4, 2022Publication date: May 9, 2024Applicant: LG Energy Solution, Ltd.Inventors: Ha Eun Kim, Chul Haeng Lee, Jeong Woo Oh, Byung Chun Park, Hyung Tae Kim, Young Mi Seo
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Patent number: 11978857Abstract: The present disclosure provides a non-aqueous electrolyte including an additive for a non-aqueous electrolyte represented by Formula 1 below: wherein, R1 to R5 may each independently be any one selected from the group consisting of H, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, and a nitrile group.Type: GrantFiled: September 29, 2022Date of Patent: May 7, 2024Assignee: LG Energy Solution, Ltd.Inventors: Hyung Tae Kim, Chul Haeng Lee, Jeong Woo Oh, Byung Chun Park, Young Mi Seo, Sung Guk Park
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Publication number: 20240101942Abstract: The present invention relates to a culture device and culture method for culturing a 3D cell aggregation and, specifically, to an overall technique for effectively culturing a 3D cell aggregation by using a culture device including a porous microwell, a membrane, and other additive components.Type: ApplicationFiled: October 27, 2023Publication date: March 28, 2024Inventors: Dong Sung KIM, Seong Jin Lee, Hyung Woo Kim, Do Hui Kim, Seongsu Eom, Jae Seung Youn
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Publication number: 20230368696Abstract: The present disclosure relates to a coding test device and a coding test method. The coding test device according to one embodiment includes a problem provider for providing a test problem including an initial condition to a user terminal, a code receiver for receiving first algorithm code corresponding to the initial condition from the user terminal, and an additional condition provider for determining whether a predetermined passing condition for the first algorithm code is satisfied and providing an additional condition related to the initial condition to the user terminal based on the result of determination for the first algorithm code.Type: ApplicationFiled: May 2, 2023Publication date: November 16, 2023Applicant: JA-IN Lab. Co., LtdInventors: Hyung Woo LEE, Dae Seok SHIN, Dae Sung JANG, Seong In KIM, Hyung Woo KIM, Byoung Ho LEE, Hyeon Ho LEE, Hoo Min LEE
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Patent number: 11665845Abstract: An electronic device includes a display; an upper housing surrounding a periphery of the display and forming a front of the electronic device; a lower housing coupled to the upper housing and forming a rear of the electronic device; and a window waterproof member disposed in an aperture between the upper housing and the periphery of the display. The window waterproof member includes an outer sheath composed of a first material; and an inner core composed of a second material more rigid than the first material and disposed substantially in the outer sheath such that each of an upper surface and a lower surface of the inner core facing the front and the rear of the electronic device, respectively, does not protrude out of a periphery of the outer sheath.Type: GrantFiled: July 26, 2021Date of Patent: May 30, 2023Inventors: Sung Eun Park, Jeong Eun Kim, Jae Uk Ahn, Jong Chun Wee, Hyung Woo Lee, Sang Hyuck Jung
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Patent number: 11618990Abstract: A dryer is disclosed. The dryer comprises: a main body including an exhaust port; a first drying chamber disposed inside the main body such that hot air is supplied thereto; a second drying chamber disposed inside the main body such that hot air is supplied thereto; and an exhaust unit for guiding, to the exhaust port, air inside the first and second drying chambers, wherein the exhaust unit includes: a first exhaust path for connecting the first drying chamber and the exhaust port; a second exhaust path for connecting the second drying chamber and the first exhaust path; and a filter assembly separably coupled to the main body, and filtering the air passing through the first and second exhaust paths.Type: GrantFiled: September 12, 2018Date of Patent: April 4, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-suk Bang, Dong-pil Seo, Hyung-woo Lee, Sang-up Lee, Hwang-mook Cho
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Patent number: 11597653Abstract: Disclosed are a hybrid structure using a graphene-carbon nanotube and a perovskite solar cell using the same. The hybrid structure includes a graphene-carbon nanotube formed by laminating a second graphene coated with a polymer on an upper surface of a first graphene coated with a carbon nanotube. The perovskite solar cell includes: a substrate; a first electrode formed on the substrate and including a fluorine doped thin oxide (FTO); an electron transfer layer formed on the first electrode and including a compact-titanium oxide (c-TiO2); a mesoporous-titanium oxide (m-TiO2) formed on the electron transfer layer; a perovskite layer formed on the m-TiO2 and including a perovskite compound; and a graphene-carbon nanotube hybrid structure formed on the perovskite layer.Type: GrantFiled: July 29, 2020Date of Patent: March 7, 2023Assignee: Pusan National University Industry-University Cooperation FoundationInventors: Hyung Woo Lee, Soon Kyu Hong, Chae Young Woo, Yeong Su Jo, Sung Min Kim, Luhe Li, Seung hoon Oh, Yeonggwon Kim
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Publication number: 20210352817Abstract: An electronic device includes a display; an upper housing surrounding a periphery of the display and forming a front of the electronic device; a lower housing coupled to the upper housing and forming a rear of the electronic device; and a window waterproof member disposed in an aperture between the upper housing and the periphery of the display. The window waterproof member includes an outer sheath composed of a first material; and an inner core composed of a second material more rigid than the first material and disposed substantially in the outer sheath such that each of an upper surface and a lower surface of the inner core facing the front and the rear of the electronic device, respectively, does not protrude out of a periphery of the outer sheath.Type: ApplicationFiled: July 26, 2021Publication date: November 11, 2021Inventors: Sung Eun PARK, Jeong Eun KIM, Jae Uk AHN, Jong Chun WEE, Hyung Woo LEE, Sang Hyuck JUNG
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Patent number: 11168180Abstract: The present invention relates to a polyethylene glycol derivative and a preparation method thereof. A preparation process of a polyethylene glycol derivative, according to the present invention, may provide a novel polyethylene glycol derivative which can be utilized in various ways as a drug linker, and is appropriate and effective for mass production and is advantageous in reproducible mass production of high-quality products.Type: GrantFiled: November 6, 2018Date of Patent: November 9, 2021Inventors: Yong Gyu Jung, Bo Sung Kwon, Seung Hwan Kwak, Eun Rang Park, Kyung Do Kim, Hyun Sik Yun, Hyung Woo Lee, Young Bum Cho
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Patent number: 11102899Abstract: An electronic device includes a display, an upper housing surrounding at least a portion of a periphery of the display, a lower housing coupled to the upper housing, and a window waterproof member disposed between at least a portion of a periphery of the display and the upper housing to seal an aperture between the upper housing and the display. The window waterproof member includes an inner core having a specific strength, and an outer sheath having a specific elasticity, and an outer peripheral surface of which contacts at least part of the upper housing and an inner peripheral surface of which contacts at least part of the display while the outer sheath surrounding at least a portion of the inner core.Type: GrantFiled: August 30, 2017Date of Patent: August 24, 2021Inventors: Sung Eun Park, Jeong Eun Kim, Jae Uk Ahn, Jong Cheon Wee, Hyung Woo Lee, Sang Hyuck Jung
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Patent number: 11011320Abstract: Disclosed is a bus stop using a large-scale perovskite solar cell in which a perovskite solar cell is prepared using a hybrid structure including a graphene-carbon nanotube. The bus stop includes a body unit fixed to the ground to maintain the overall shape, a solar cell unit for producing electrical energy from sunlight, and an energy storage system (ESS) for storing the electrical energy produced by the solar cell part.Type: GrantFiled: August 17, 2020Date of Patent: May 18, 2021Assignee: Pusan National University Industry-University Cooperation FoundationInventors: Sung Ho Jin, Jinhwan Yoon, Heon Cheol Shin, Yang Do Kim, Jin Woo Oh, Sung Il Ahn, Hyun Deog Yoo, Hyung Woo Lee, Mi Ra Kim
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Publication number: 20210065991Abstract: Disclosed is a bus stop using a large-scale perovskite solar cell in which a perovskite solar cell is prepared using a hybrid structure including a graphene-carbon nanotube. The bus stop includes a body unit fixed to the ground to maintain the overall shape, a solar cell unit for producing electrical energy from sunlight, and an energy storage system (ESS) for storing the electrical energy produced by the solar cell part.Type: ApplicationFiled: August 17, 2020Publication date: March 4, 2021Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Sung Ho JIN, Jinhwan YOON, Heon Cheol SHIN, Yang Do KIM, Jin Woo OH, Sung Il AHN, Hyun Deog YOO, Hyung Woo LEE, Mi Ra KIM
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Publication number: 20210032108Abstract: Disclosed are a hybrid structure using a graphene-carbon nanotube and a perovskite solar cell using the same. The hybrid structure includes a graphene-carbon nanotube formed by laminating a second graphene coated with a polymer on an upper surface of a first graphene coated with a carbon nanotube. The perovskite solar cell includes: a substrate; a first electrode formed on the substrate and including a fluorine doped thin oxide (FTO); an electron transfer layer formed on the first electrode and including a compact-titanium oxide (c-TiO2); a mesoporous-titanium oxide (m-TiO2) formed on the electron transfer layer; a perovskite layer formed on the m-TiO2 and including a perovskite compound; and a graphene-carbon nanotube hybrid structure formed on the perovskite layer.Type: ApplicationFiled: July 29, 2020Publication date: February 4, 2021Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Hyung Woo LEE, Soon Kyu HONG, Chae Young WOO, Yeong Su JO, Sung Min KIM
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Patent number: 10801158Abstract: A drying apparatus is provided. The drying apparatus includes a first drying device including a drying basket and a first heater configured to provide hot air to the drying basket, a second drying device which is coupled with the first drying device and includes a drying drum and provides hot air to the drying drum, and a controller configured to, in response to the first drying device and the second drying device being simultaneously operated, reducing a heating performance of at least one of the first heater and the second heater.Type: GrantFiled: December 13, 2017Date of Patent: October 13, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-suk Bang, Hyung-woo Lee, Ji-hyun Woo
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Publication number: 20200318281Abstract: A dryer is disclosed. The dryer comprises: a main body including an exhaust port; a first drying chamber disposed inside the main body such that hot air is supplied thereto; a second drying chamber disposed inside the main body such that hot air is supplied thereto; and an exhaust unit for guiding, to the exhaust port, air inside the first and second drying chambers, wherein the exhaust unit includes: a first exhaust path for connecting the first drying chamber and the exhaust port; a second exhaust path for connecting the second drying chamber and the first exhaust path; and a filter assembly separably coupled to the main body, and filtering the air passing through the first and second exhaust paths.Type: ApplicationFiled: September 12, 2018Publication date: October 8, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-suk BANG, Dong-pil SEO, Hyung-woo LEE, Sang-up LEE, Hwang-mook CHO
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Patent number: 10731289Abstract: A clothes dryer includes a drum configured to accommodate an object to be dried; a first sensor configured to sense a dry state of the object to be dried accommodated in the drum; a heating unit configured to heat air supplied into the drum; a blower including a fan configured to generate a flow of the air passing through the inside of the drum; a second sensor configured to sense a temperature of the air discharged from the drum; and a processor configured to control a rotation speed of the drum, a temperature of the air discharged from the drum, and a rotation speed of the fan.Type: GrantFiled: October 8, 2018Date of Patent: August 4, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Do-haeng Kim, Hye-joon Seok, Sang-oh Yoo, Young-min Choi, Ju-dai Kim, Yong-joon Jang, Seong-min Oak, Hyung-woo Lee
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Publication number: 20200231749Abstract: The present invention relates to a polyethylene glycol derivative and a preparation method thereof. A preparation process of a polyethylene glycol derivative, according to the present invention, may provide a novel polyethylene glycol derivative which can be utilized in various ways as a drug linker, and is appropriate and effective for mass production and is advantageous in reproducible mass production of high-quality products.Type: ApplicationFiled: November 6, 2018Publication date: July 23, 2020Applicant: Hanmi Fine Chemical Co., Ltd.Inventors: Yong Gyu Jung, Bo Sung Kwon, Seung Hwan Kwak, Eun Rang Park, Kyung Do Kim, Hyun Sik Yun, Hyung Woo Lee, Young Bum Cho
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Publication number: 20190127905Abstract: A clothes dryer includes a drum configured to accommodate an object to be dried; a first sensor configured to sense a dry state of the object to be dried accommodated in the drum; a heating unit configured to heat air supplied into the drum; a blower including a fan configured to generate a flow of the air passing through the inside of the drum; a second sensor configured to sense a temperature of the air discharged from the drum; and a processor configured to control a rotation speed of the drum, a temperature of the air discharged from the drum, and a rotation speed of the fan.Type: ApplicationFiled: October 8, 2018Publication date: May 2, 2019Inventors: Do-haeng Kim, Hye-joon Seok, Sang-oh Yoo, Young-min Choi, Ju-dai Kim, Yong-joon Jang, Seong-min Oak, Hyung-woo Lee
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Patent number: 10168736Abstract: A coupling member that is attachable to/detachable from a housing of an electronic device while making the housing wearable on a user's body, and an electronic device including the coupling member is provided. The electronic device includes a band member that is configured to come in contact with a user's body portion, a slide member that is mounted on the band member, and is bound to a portion of the housing in a state where the coupling member is mounted on the housing, an opening that is formed in the slide member, a locking member that is disposed on the band member, and a locking protrusion that is formed on a locking member. The locking protrusion appears to the outside of the slide member through the opening according to the reciprocating of the locking member, and the coupling member is bound to the housing.Type: GrantFiled: August 12, 2016Date of Patent: January 1, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Hyung-Woo Lee, Hwan-Seok Choi, Kyung-Hwan Lee, Jong-Cheon Wee