Patents by Inventor Yong-Il Park
Yong-Il 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: 20240170678Abstract: Disclosed are an anode including a core part and a binder and a secondary battery including the same. Particularly, a coating layer including a polymer is provided between the core part and the binder and thus blocks electron transport paths from the core part to the binder. Thereby, decomposition of the binder is suppressed, and thus, the charge capacity and the initial Coulombic efficiency of the secondary battery are increased.Type: ApplicationFiled: March 9, 2023Publication date: May 23, 2024Inventors: Yong Il Cho, Geun Ho Choi, Hannah Song, Hyun Jin Kim, Hyeon Ha Lee, Chan Bum Park, Jang Wook Choi, Tae Geun Lee, Ji Woo An
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Publication number: 20240118036Abstract: A vapor chamber comprises a front surface member having a curvature, a rear surface member coupled to the front surface member, a wick disposed between the front surface member and the rear surface member, and a refrigerant at least partially filled between the front surface member and the rear surface member, wherein the rear surface member includes a plurality of bent areas.Type: ApplicationFiled: July 20, 2023Publication date: April 11, 2024Applicant: Samsung Display Co., LTD.Inventors: Wee Joon JEONG, Yong Il KIM, Byoung Kyoo PARK, Jang Un CHOI
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Publication number: 20240119949Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.Type: ApplicationFiled: November 30, 2023Publication date: April 11, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Jeong Il SEO, Seung Kwon BEACK, Dae Young JANG, Kyeong Ok KANG, Tae Jin PARK, Yong Ju LEE, Keun Woo CHOI, Jin Woong KIM
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Patent number: 11942264Abstract: A coil component includes a body having a first surface, and a first end surface and a second end surface connected to the first surface and opposing each other in a length direction; a support substrate disposed inside the body; a coil portion comprising a first coil pattern and first and second lead-out patterns, each disposed on a first surface of the support substrate; first and second slit portions, respectively defined on edge portions of the first surface of the body to expose the first and second lead-out patterns; and first and second external electrodes disposed on the first and second slit portions to be connected to the first and second lead-out patterns. At least one of the first and second lead-out patterns has a thickness greater than a thickness of each of the first coil pattern and the first dummy lead-out pattern.Type: GrantFiled: December 8, 2020Date of Patent: March 26, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: No Il Park, Byung Soo Kang, Seung Mo Lim, Byeong Cheol Moon, Boum Seock Kim, Yong Hui Li, Seung Min Lee
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Patent number: 11936209Abstract: A method of controlling a wireless power transmitter to detect a foreign object can include in response to a wireless power receiver being placed in a charging area of the wireless power transmitter, determining a current peak frequency; collecting a communication error count related to communication between the wireless power transmitter and the wireless power receiver; determining a reference frequency for detecting the foreign object based on a reference peak frequency received from the wireless power receiver; and determining that the foreign object is present within the charging area based on the current peak frequency, the communication error count and the reference frequency.Type: GrantFiled: March 9, 2023Date of Patent: March 19, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Yong Il Kwon, Jae Hee Park
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Patent number: 11915853Abstract: A coil component is provided. The coil component includes a body having fifth and sixth surfaces opposing each other, first and second surfaces respectively connecting the fifth and sixth surfaces of the body and opposing each other, and third and fourth surfaces respectively connecting the first and second surfaces of the body and opposing each other in one direction, a recess disposed in an edge between one of the first and second surfaces of the body and the sixth surface of the body, a coil portion disposed inside the body and exposed through the recess, and an external electrode including a connection portion disposed in the recess and connected to the coil portion, and a pad portion disposed on one surface of the body. A length of the pad portion in the one direction is greater than a length of the connection portion in the one direction.Type: GrantFiled: November 6, 2020Date of Patent: February 27, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Seung Mo Lim, Seung Min Lee, Byeong Cheol Moon, Yong Hui Li, Byung Soo Kang, Ju Hwan Yang, Tai Yon Cho, No Il Park, Tae Jun Choi
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Patent number: 11916258Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.Type: GrantFiled: October 4, 2019Date of Patent: February 27, 2024Assignee: LG Energy Solution, Ltd.Inventors: Gyung Soo Kang, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Jung Il Park, Ki Youn Kim
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Patent number: 9352058Abstract: The present invention relates to a method of preparing biocompatible iron oxide nanoparticles by coating iron oxide nanoparticles having improved magnetism via annealing treatment using salt particles with a hydrophilic material and to a magnetic resonance imaging (MRI) contrast agent including the iron oxide nanoparticles prepared thereby. Among hydrophilic materials, carboxymethyl dextran (CM-dextran) is the most efficient in terms of stabilizing the annealed iron oxide nanoparticles and exhibiting contrast effects.Type: GrantFiled: February 6, 2012Date of Patent: May 31, 2016Assignee: HANWHA CHEMICAL CORPORATIONInventors: Taeghwan Hyeon, Yuanzhe Piao, Yong Il Park
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Publication number: 20130323182Abstract: The present invention relates to a method of preparing biocompatible iron oxide nanoparticles by coating iron oxide nanoparticles having improved magnetism via annealing treatment using salt particles with a hydrophilic material and to a magnetic resonance imaging (MRI) contrast agent including the iron oxide nanoparticles prepared thereby. Among hydrophilic materials, carboxymethyl dextran (CM-dextran) is the most efficient in terms of stabilizing the annealed iron oxide nanoparticles and exhibiting contrast effects.Type: ApplicationFiled: February 6, 2012Publication date: December 5, 2013Applicant: HANWHA CHEMICAL CORPORATIONInventors: Taeghwan Hyeon, Yuanzhe Piao, Yong Il Park
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Patent number: 8592095Abstract: A high molecular nanocomposite membrane for a Direct Methanol Fuel Cell (DMFC), and a Membrane-Electrode Assembly (MEA) and a methanol fuel cell including the same membrane. The high molecular nanocomposite membrane for a DMFC includes a perflurorosulfonic acid polymer (Nation®), high molecular membrane in which hydrophobic silica nanoparticles made from a silane compound having a water repellent functional group are dispersed. Since the high molecular nanocomposite membrane for a DMFC has lower permeability of methanol than a commercially available Nation® high molecular membrane, the MEA fabricated using the high molecular nanocomposite membrane has little crossover of reaction fuel at the negative electrode. In addition, the methanol fuel electrode fabricated using the MEA that includes the high molecular nanocomposite membrane can decrease fuel loss and voltage loss.Type: GrantFiled: January 28, 2011Date of Patent: November 26, 2013Assignee: Kumoh National Institute of Technology Industry-Academic Cooperation FoundationInventors: Yong-il Park, Eun Hyung Kim, Sung Bum Park
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Publication number: 20110294040Abstract: Proton-conducting hybrid glass and a method for manufacturing the same. The proton-conducting hybrid glass has CsPWA created inside the pores of borosilicate glass. The proton-conducting hybrid glass can be used as an electrolyte for electrochemical devices, such as fuel cells and sensors. When the proton-conducting hybrid glass is used as an electrolyte membrane for a fuel cell, excellent thermal and chemical stability is realized in the range from a high temperature to an intermediate temperature of 120° C. A high proton conductivity of 10?3S/cm or higher and good catalytic activity are realized. In addition, high volumetric stability and excellent moisture retention characteristics in high and intermediate temperature ranges are achieved.Type: ApplicationFiled: May 31, 2011Publication date: December 1, 2011Applicant: KUMOH NATIONAL INSTITUTE OF TECHNOLOGY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Yong-il Park, Myung Hoon Oh, Sung Bum Park, Sang Hyun Lee, In Jung Kim, Jin Hun Jo, Man Seok Park
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Publication number: 20110183231Abstract: A high molecular nanocomposite membrane for a Direct Methanol Fuel Cell (DMFC), and a Membrane-Electrode Assembly (MEA) and a methanol fuel cell including the same membrane. The high molecular nanocomposite membrane for a DMFC includes a Nafion® high molecular membrane in which hydrophobic silica nanoparticles made of a silane compound having a water repellent functional group are dispersed. Since the high molecular nanocomposite membrane for a DMFC has lower permeability of methanol than a commercially available Nafion® high molecular membrane, the MEA fabricated using the high molecular nanocomposite membrane has little crossover of reaction fuel at the negative electrode. In addition, the methanol fuel electrode fabricated using the MEA that includes the high molecular nanocomposite membrane can decrease fuel loss and voltage loss.Type: ApplicationFiled: January 28, 2011Publication date: July 28, 2011Applicant: KUMOH NATIONAL INSTITUTE OF TECHNOLOGY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Yong-il Park, Eun Hyung Kim, Sung Bum Park
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Patent number: 7431838Abstract: An improved two-step replication process for fabrication of porous metallic membranes is provided. A negative of a porous non-metallic template is made by infiltration of a liquid precursor into the template, curing the precursor to form a solid negative, and removing the template to expose the negative. Metal is deposited to surround the exposed negative. Removal of the negative provides a porous metallic membrane having pores which replicate the pores of the original template membrane. The negative is kept immersed in a liquid at all times between removing the template and depositing the metal. This immersion eliminates damage to the negative that would be incurred in drying the negative out between these processing steps. Another aspect of the invention is metallic membranes prepared according to the preceding method. For example, metallic membranes having pores smaller on one side than on the other side of the membrane are provided.Type: GrantFiled: August 9, 2006Date of Patent: October 7, 2008Assignees: The Board of Trustees of the Leland Stanford Junior University, Honda Motor Co., LtdInventors: Sangkyun Kang, Yong-Il Park, Friedrich B. Prinz, Suk-Won Cha, Yuji Saito, Ali Farvid, Pei-Chen Su
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Patent number: 7195833Abstract: Dislocations are fabricated into electrolyte membrane films to increase ion conductivity. Ion and/or electron irradiation causes the growth of vacancy clusters within the thin film and collapsing into Frank dislocation loops that exhibit high ion conductivity. Maximum ion conductivity is accomplished by spatially reorienting the Frank dislocation loops during a following heat-treatment of the membrane. Thereby the dislocation loops form surface-to-surface continuous dislocations along which ions may propagate between membrane surfaces with minimal activation energies. Dislocation densities in the range of 108˜1014 cm/cm3 may be fabricated with conventional irradiation techniques into ceramics such as, for example yttria stabilized zirconia and doped ceria.Type: GrantFiled: May 29, 2003Date of Patent: March 27, 2007Assignees: The Board of Trustees of the Leland Stanford Junior University, Honda Giken Kogyo Kabushiki KaishaInventors: Yuji Saito, Friedrich B. Prinz, Yong-Il Park, Ryan O'Hayre
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Patent number: 7179500Abstract: A fluid impermeable thin film is fabricated on a porous substrate by depositing a material having a certain spatial oxidation expansion. After deposition, the material is oxidized whereby the deposited material expands and forms a void free film on top of the porous substrate. The snuggly contacting grain boundaries of the void free film may recombine to a continuous thin film that has a thickness of only a fraction of 1 ?m and is substantially fluid impermeable. The small film height contributes to a high ionic conductivity that makes the thin film a preferred choice for a fuel cell electrolyte membrane enabling efficient fuel cell operation at temperatures well below 500° C.Type: GrantFiled: May 29, 2003Date of Patent: February 20, 2007Assignees: The Board of Trustees of the Leland Stanford Junior University, Honda Giken Kogyo Kabushiki KaishaInventors: Yong-Il Park, Friedrich B. Prinz, Suk-Won Cha, Sang-Joon John Lee, Yuji Saito
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Publication number: 20060238683Abstract: The present invention relates to a liquid crystal display, which comprises: a lower substrate having a reflective electrode; a lower alignment film formed on the lower substrate; an upper substrate having a color filter and disposed opposite to the lower substrate; an upper alignment film formed on the upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate and serving to convert linearly polarized light into circularly polarized light; and a polarizer adhered on the phase compensation film and serving to convert natural light into linearly polarized light. The lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.Type: ApplicationFiled: June 19, 2006Publication date: October 26, 2006Inventors: Dong Hae Suh, Yong Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
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Patent number: 7108813Abstract: An improved two-step replication process for fabrication of porous metallic membranes is provided. A negative of a porous non-metallic template is made by infiltration of a liquid precursor into the template, curing the precursor to form a solid negative, and removing the template to expose the negative. Metal is deposited to surround the exposed negative. Removal of the negative provides a porous metallic membrane having pores which replicate the pores of the original template membrane. The negative is kept immersed in a liquid at all times between removing the template and depositing the metal. This immersion eliminates damage to the negative that would be incurred in drying the negative out between these processing steps. Another aspect of the invention is metallic membranes prepared according to the preceding method. For example, metallic membranes having pores smaller on one side than on the other side of the membrane are provided.Type: GrantFiled: March 25, 2005Date of Patent: September 19, 2006Assignees: The Board of Trustees of the Leland Stanford Junior University, Honda Giken Kogyo Kabushiki KaishaInventors: Sangkyun Kang, Yong-Il Park, Friedrich B. Prinz, Suk-Won Cha, Yuji Saito, Ali Farvid, Pei-Chen Su
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Publication number: 20050242022Abstract: An improved two-step replication process for fabrication of porous metallic membranes is provided. A negative of a porous non-metallic template is made by infiltration of a liquid precursor into the template, curing the precursor to form a solid negative, and removing the template to expose the negative. Metal is deposited to surround the exposed negative. Removal of the negative provides a porous metallic membrane having pores which replicate the pores of the original template membrane. The negative is kept immersed in a liquid at all times between removing the template and depositing the metal. This immersion eliminates damage to the negative that would be incurred in drying the negative out between these processing steps. Another aspect of the invention is metallic membranes prepared according to the preceding method. For example, metallic membranes having pores smaller on one side than on the other side of the membrane are provided.Type: ApplicationFiled: March 25, 2005Publication date: November 3, 2005Inventors: Sangkyun Kang, Yong-Il Park, Friedrich Prinz, Suk-Won Cha, Yuji Saito, Ali Farvid, Pei-Chen Su
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Publication number: 20040038106Abstract: Dislocations are fabricated into electrolyte membrane films to increase ion conductivity. Ion and/or electron irradiation causes the growth of vacancy clusters within the thin film and collapsing into Frank dislocation loops that exhibit high ion conductivity. Maximum ion conductivity is accomplished by spatially reorienting the Frank dislocation loops during a following heat-treatment of the membrane. Thereby the dislocation loops form surface-to-surface continuous dislocations along which ions may propagate between membrane surfaces with minimal activation energies. Dislocation densities in the range of 108˜1014 cm/cm3 may be fabricated with conventional irradiation techniques into ceramics such as, for example yttria stabilized zirconia and doped ceria.Type: ApplicationFiled: May 29, 2003Publication date: February 26, 2004Inventors: Yuji Saito, Friedrich B. Prinz, Yong-il Park, Ryan O'Hayre
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Publication number: 20040013924Abstract: A fluid impermeable thin film is fabricated on a porous substrate by depositing a material having a certain spatial oxidation expansion. After deposition, the material is oxidized whereby the deposited material expands and forms a void free film on top of the porous substrate. The snuggly contacting grain boundaries of the void free film may recombine to a continuous thin film that has a thickness of only a fraction of 1 &mgr;m and is substantially fluid impermeable. The small film height contributes to a high ionic conductivity that makes the thin film a preferred choice for a fuel cell electrolyte membrane enabling efficient fuel cell operation at temperatures well below 500° C.Type: ApplicationFiled: May 29, 2003Publication date: January 22, 2004Inventors: Yong-Il Park, Friedrich B. Prinz, Suk-Won Cha, Sang-Joon John Lee, Yuji Saito