Patents by Inventor Kyu Ahn

Kyu Ahn 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).

  • Patent number: 10056512
    Abstract: Disclosed is a method of forming a chalcogen compound thin film suitable for use in a light-absorption layer of a solar cell. The method includes manufacturing a precursor liquid including an Sn precursor material and an S precursor material, applying the precursor liquid to form a precursor film, and heat-treating the precursor film. The Sn precursor material and the S precursor material are liquid materials. The present invention provides a method of forming a chalcogen compound thin film using a liquid precursor material without a sulfurization process, thereby forming a high-quality SnS thin film at low cost using a process which is suitable for mass production. Further, the light-absorption layer is formed using a process which is suitable for mass production, thus enabling the manufacture of a solar cell including the chalcogen compound thin film at low cost.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: August 21, 2018
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ara Cho, Jun-Sik Cho, Jae-Ho Yun, Sejin Ahn, Jihye Gwak, Jin-su Yoo, Seoung-Kyu Ahn, Joo-Hyung Park, Young-Joo Eo, Ki-hwan Kim
  • Publication number: 20180138336
    Abstract: A method of manufacturing a CIGS-based solar cell including a transparent rear electrode, the method comprising forming a rear electrode layer including a transparent oxide material; forming rear electrode patterns including a metal material on the rear electrode layer; forming a CIGS-based light absorption layer on the rear electrode layer on which the rear electrode patterns are formed; forming a buffer layer on the light absorption layer; and forming a front electrode including a transparent material on the buffer layer, wherein the rear electrode patterns are provided with a transmissive portion, through which light is transmitted, formed between patterns of the metal material.
    Type: Application
    Filed: November 29, 2016
    Publication date: May 17, 2018
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Kihwan KIM, Jae-ho YUN, Jihye GWAK, Seung-kyu AHN, Jun-Sik CHO, Joo-hyung PARK, Young-Joo EO, Jin-su YOO, Se-jin AHN, Ara CHO
  • Patent number: 9966579
    Abstract: A rechargeable battery includes: an electrode assembly including a first electrode, a separator, and a second electrode; a case accommodating the electrode assembly and having an opening at a side thereof for receiving the electrode assembly; a cap assembly coupled to the case at the opening; a first insulation member surrounding the case, an extending portion of the first insulation member extending above the cap assembly; and a second insulation member on the cap assembly and contacting the portion of the first insulation member extending above the cap assembly, the second insulation member being a coated layer.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 8, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jun-Yong Lee, Sang-Won Byun, Byung-Kyu Ahn
  • Publication number: 20180123507
    Abstract: Disclosed is a photovoltaic package having a simple structure configured to enable mid-term or short-term use thereof, the photovoltaic package including a photovoltaic cell for producing electrical energy through photoelectric conversion, a front sealing sheet disposed on the front side of the photovoltaic cell, and a back sealing sheet disposed on the back side of the photovoltaic cell, wherein at least one of the front sealing sheet and the back sealing sheet contains therein moisture-absorbent particles, and the front sealing sheet and the back sealing sheet are adhered to each other so that the photovoltaic cell is sealed.
    Type: Application
    Filed: August 14, 2017
    Publication date: May 3, 2018
    Inventors: Young-joo EO, Jun-sik CHO, Jae-ho YUN, Se-jin AHN, Jihye GWAK, Jin-su YOO, Seung-kyu AHN, Joo-hyung PARK, Ara CHO, Kihwan KIM
  • Publication number: 20180111918
    Abstract: The present invention provides a diaminopyrimidine derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, a pharmaceutical composition comprising the same, and a use thereof. The diaminopyrimidine derivative or its pharmaceutically acceptable salt functions as a 5-HT4 receptor agonist, and therefore can be usefully applied for preventing or treating dysfunction in gastrointestinal motility, one of the gastrointestinal diseases, such as gastroesophageal reflux disease (GERD), constipation, irritable bowel syndrome (IBS), dyspepsia, post-operative ileus, delayed gastric emptying, gastroparesis, intestinal pseudo-obstruction, drug-induced delayed transit, or diabetic gastric atony.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 26, 2018
    Applicant: YUHAN CORPORATION
    Inventors: Hyun-Joo LEE, Dong-Hoon KIM, Tae-Kyun KIM, Young-Ae YOON, Jae-Young SIM, Myung-Hun CHA, Eun-Jung JUNG, Kyoung-Kyu AHN, Tai-Au LEE
  • Publication number: 20180106440
    Abstract: A jig for a sample for a solar photovoltaic device is disclosed. The jig includes a cradle unit supporting the sample and a contact unit including at least one probe pin coming into contact with a busbar of the sample located in the cradle unit. The contact unit includes a coupling plate coupled with the cradle unit and at least one contact bar including a PCB and connected to the coupling plate, the contact bar having at least one probe pin aligned with the busbar of the sample with interposition of a probe pin connecting block. the jig includes a rotation support unit coupled with the cradle unit by a rotation shaft to allow the cradle unit to be rotated at an angle of 180° or greater so that upper and lower surfaces of the sample supported by the cradle unit are reversed.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 19, 2018
    Inventors: Seung-kyu AHN, Jun-sik CHO, Jae-ho YUN, Se-jin AHN, Jihye GWAK, Jin-su YOO, Joo-hyung PARK, Young-joo EO, Ara CHO, Kihwan KIM
  • Patent number: 9947543
    Abstract: The present disclosure relates to a semiconductor memory, device and a method of forming a semiconductor memory device. The method of manufacturing a semiconductor memory device, includes forming a tunnel insulation layer and a floating gate on a semiconductor substrate of an active region, forming a trench in the semiconductor substrate of an isolation region, forming, in the trench, a sacrificial layer having an upper surface positioned higher than a surface of the semiconductor substrate, forming a capping layer over the sacrificial layer, and forming an air gap by removing the sacrificial layer without removing the capping layer.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 17, 2018
    Assignee: SK Hynix Inc.
    Inventors: Tae Kyung Kim, Jung Myoung Shim, Myung Kyu Ahn, Sung Soon Kim, Woo Duck Jung
  • Publication number: 20180072705
    Abstract: The present invention provides a diaminopyrimidine derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, a pharmaceutical composition comprising the same, and a use thereof. The diaminopyrimidine derivative or its pharmaceutically acceptable salt functions as a 5-HT4 receptor agonist, and therefore can be usefully applied for preventing or treating dysfunction in gastrointestinal motility, one of the gastrointestinal diseases, such as gastroesophageal reflux disease (GERD), constipation, irritable bowel syndrome (IBS), dyspepsia, post-operative ileus, delayed gastric emptying, gastroparesis, intestinal pseudo-obstruction, drug-induced delayed transit, or diabetic gastric atony.
    Type: Application
    Filed: November 15, 2017
    Publication date: March 15, 2018
    Applicant: Yuhan Corporation
    Inventors: Hyun-Joo LEE, Dong-Hoon KIM, Tae-Kyun KIM, Young-Ae YOON, Jae-Young SIM, Myung-Hun CHA, Eun-Jung JUNG, Kyoung-Kyu AHN, Tai-Au LEE
  • Patent number: 9890138
    Abstract: The present invention provides a diaminopyrimidine derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, a pharmaceutical composition comprising the same, and a use thereof. The diaminopyrimidine derivative or its pharmaceutically acceptable salt functions as a 5-HT4 receptor agonist, and therefore can be usefully applied for preventing or treating dysfunction in gastrointestinal motility, one of the gastrointestinal diseases, such as gastroesophageal reflux disease (GERD), constipation, irritable bowel syndrome (IBS), dyspepsia, post-operative ileus, delayed gastric emptying, gastroparesis, intestinal pseudo-obstruction, drug-induced delayed transit, or diabetic gastric atony.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: February 13, 2018
    Assignee: YUHAN CORPORATION
    Inventors: Hyun-Joo Lee, Dong-Hoon Kim, Tae-Kyun Kim, Young-Ae Yoon, Jae-Young Sim, Myung-Hun Cha, Eun-Jung Jung, Kyoung-Kyu Ahn, Tai-Au Lee
  • Publication number: 20180033901
    Abstract: The invention relates to a semitransparent back electrode, a solar cell using the same, and a method for manufacturing them and, more specifically, to a technique for solving a performance decrease problem caused by increase of resistance of a conventional semitransparent solar cell. A method for manufacturing a semitransparent back electrode of a solar cell according to the invention includes depositing a transparent back electrode on a substrate, and forming a semitransparent molybdenum electrode layer on the back electrode. Accordingly, a BSF effect can be expected by applying a molybdenum layer locally or restrictively as a thin film, and the transparency is secured.
    Type: Application
    Filed: November 2, 2016
    Publication date: February 1, 2018
    Inventors: Jun Sik Cho, Jae Ho Yun, Se Jin Ahn, Jihye Gwak, Jin Su Yoo, Seung Kyu Ahn, Joo Hyung Park, Young Joo Eo, A Ra Cho, Ki Hwan Kim
  • Publication number: 20180019506
    Abstract: An energy storage system includes a plurality of trays holding battery packs, each tray having a tray controller, and a switch to set an identification code to the tray, and a rack accommodating the plurality of trays, the rack having a rack controller, and fingers corresponding to each switch of the trays, the fingers selectively activating each switch when a corresponding tray is mounted on the rack.
    Type: Application
    Filed: August 30, 2017
    Publication date: January 18, 2018
    Inventor: Sang-Kyu AHN
  • Patent number: 9850227
    Abstract: The present invention provides a diaminopyrimidine derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, a pharmaceutical composition comprising the same, and a use thereof. The diaminopyrimidine derivative or its pharmaceutically acceptable salt functions as a 5-HT4 receptor agonist, and therefore can be usefully applied for preventing or treating dysfunction in gastrointestinal motility, one of the gastrointestinal diseases, such as gastroesophageal reflux disease (GERD), constipation, irritable bowel syndrome (IBS), dyspepsia, post-operative ileus, delayed gastric emptying, gastroparesis, intestinal pseudo-obstruction, drug-induced delayed transit, or diabetic gastric atony.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: December 26, 2017
    Assignee: YUHAN CORPORATION
    Inventors: Hyun-Joo Lee, Dong-Hoon Kim, Tae-Kyun Kim, Young-Ae Yoon, Jae-Young Sim, Myung-Hun Cha, Eun-Jung Jung, Kyoung-Kyu Ahn, Tai-Au Lee
  • Publication number: 20170365572
    Abstract: A fan-out semiconductor package includes a first connection member having a through hole, a semiconductor chip in the through hole, having an active surface with a connection pad and an inactive surface on an opposing side. An encapsulant encapsulates at least a portion of the first connection member and the semiconductor chip. A second connection member is on the first connection member and the semiconductor chip. The first connection member and the second connection member each include a redistribution layer electrically connected to a connection pad of the semiconductor chip. The interface between the second connection member and the encapsulant is located on a different level from the level of the interface between the second connection member and a redistribution layer of the first connection member or the level of the interface between the second connection member and a connection pad of the semiconductor chip.
    Type: Application
    Filed: March 7, 2017
    Publication date: December 21, 2017
    Inventors: Doo Hwan LEE, Ju Hyeon KIM, Dae Kyu AHN, Sung Won JEONG
  • Publication number: 20170320923
    Abstract: The present invention relates to a proton-transport vesicle and a method for preparing the same, the proton-transfer vesicle comprising: (a) a single phospholipid bilayer liposome; (b) a rhodopsin protein; and (c) a photosystem II protein, wherein the rhodopsin protein and the photosystem II protein are inserted and located in a bilayer of the liposome. Since the heterologous photosensitive proteins are inserted and located in the bilayer of the liposome, the vesicle has an absorption wavelength band of the whole region of visible light by utilizing absorption bands of different lights of the respective photosensitive proteins. Thus, the restricted efficiency caused by utilizing only a specific wavelength in existing organisms or artificial vesicles was improved, and the wavelength region can be enlarged to the all wavelength ranges of visible light.
    Type: Application
    Filed: October 10, 2014
    Publication date: November 9, 2017
    Applicant: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY
    Inventors: Kwan Woo SHIN, Hee Yeon KIM, Kwang-Hwan JUNG, Keel Yong LEE, Tae Kyu AHN
  • Publication number: 20170317639
    Abstract: Disclosed is a circulation type space-based solar power system, the system including: one or more solar modules; a conveyor belt on which the solar modules are attached, whereby the solar modules move between a solar power generating position and a recovery position, the solar modules receiving sunlight to generate solar power in the solar power generating position, and not receiving sunlight in the recovery position; a driver moving the conveyor belt; and a protective plate blocking cosmic rays incident to the solar modules located in the recovery position. The system can generate solar power for a long time by moving the solar modules between the solar power generating position and the recovery position. While some of the solar modules generate solar power, the remaining solar modules having damage are recovered.
    Type: Application
    Filed: October 14, 2016
    Publication date: November 2, 2017
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Young-Joo EO, Jun-Sik CHO, Jae-ho YUN, Sejin AHN, Jihye GWAK, Jin-su YOO, Ara CHO, Seoung-Kyu AHN, Joo-Hyung PARK, Kihwan KIM
  • Patent number: 9755282
    Abstract: An energy storage system includes a plurality of trays holding battery packs, each tray having a tray controller, and a switch to set an identification code to the tray, and a rack accommodating the plurality of trays, the rack having a rack controller, and fingers corresponding to each switch of the trays, the fingers selectively activating each switch when a corresponding tray is mounted on the rack.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Sang-Kyu Ahn
  • Patent number: 9754962
    Abstract: A semiconductor device includes interlayer dielectrics stacked and spaced apart from each other, a channel layer passing through the interlayer dielectrics, line pattern regions each surrounding a sidewall of the channel layer to be disposed between the interlayer dielectrics, a barrier pattern formed along a surface of each of the line pattern regions and the sidewall of the channel layer, a reaction preventing pattern formed on the barrier pattern along a surface of a first region of each of the line pattern regions, the first region being adjacent to the channel layer, a protection pattern filled in the first region on the reaction preventing pattern, and a first metal layer filled in a second region of each of the line pattern regions.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: September 5, 2017
    Assignee: SK Hynix Inc.
    Inventors: Chan Sun Hyun, Myung Kyu Ahn, Woo June Kwon
  • Patent number: 9716298
    Abstract: A rechargeable battery module includes a plurality of unit battery cells and a bus bar interconnecting a first electrode terminal of a first unit battery cell of the unit battery cells and a second electrode terminal of a second unit battery cell of the unit battery cells, the first electrode terminal having a first plurality of surfaces, the second electrode terminal having a second plurality of surfaces, and the bus bar having a third plurality of surfaces, the first plurality of surfaces being configured to face and make surface contact with corresponding ones of the third plurality of surfaces, the second plurality of surfaces being configured to face and make surface contact with corresponding ones of the third plurality of surfaces, and the first, second, and third pluralities of surfaces facing along a plurality of directions.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: July 25, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sang-Kyu Ahn
  • Publication number: 20170149030
    Abstract: A rechargeable battery includes: an electrode assembly including a first electrode, a separator, and a second electrode; a case accommodating the electrode assembly and having an opening at a side thereof for receiving the electrode assembly; a cap assembly coupled to the case at the opening; a first insulation member surrounding the case, an extending portion of the first insulation member extending above the cap assembly; and a second insulation member on the cap assembly and contacting the portion of the first insulation member extending above the cap assembly, the second insulation member being a coated layer.
    Type: Application
    Filed: June 28, 2016
    Publication date: May 25, 2017
    Inventors: Jun-Yong Lee, Sang-Won Byun, Byung-Kyu Ahn
  • Publication number: 20170141358
    Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a separator, and a second electrode, a case for accommodating the electrode assembly, and defining an opening at a side of the case for receiving the electrode assembly, a cap assembly mounted to the case at the opening of the case, and including a first electrode terminal and a second electrode terminal respectively electrically connected to the first electrode and the second electrode, and a protective member for covering the case and the cap assembly, and including a first bonding portion corresponding to a bottom surface of the case, a plurality of second bonding portions respectively corresponding to first lateral walls of the case, and a plurality of finish portions respectively overlapping opposite ends of the second bonding portions.
    Type: Application
    Filed: July 19, 2016
    Publication date: May 18, 2017
    Inventors: Jun-Yong Lee, Sang-Won Byun, Byung-Kyu Ahn