Patents by Inventor Gyu Ahn

Gyu 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: 12285710
    Abstract: The filter for carbon dioxide adsorption according to the present invention is composed of multiple unit filters that are mutually connected and stacked, and the unit filters include a repeating three-dimensional patterned part formed using one selected from vat photopolymerization, powder bed fusion, or additive manufacturing processes; flow paths formed in the three-dimensional patterned part; a three-dimensional exposed surface that is exposed to the mixed gas flowing through the flow paths; and a carbon dioxide adsorption layer coated on the exposed surface.
    Type: Grant
    Filed: November 27, 2024
    Date of Patent: April 29, 2025
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY
    Inventors: Dong Gyu Ahn, Jeong Won Lee, Chang Lae Kim, Sung Yong Jung
  • Publication number: 20240372189
    Abstract: Disclosed is a specific stacked composition of a multi-layer film which is mainly used as a sealant layer of a cell pouch, has excellent adhesive performance, and simultaneously satisfies moldability in post-processing. The present invention provides a polypropylene-based multi-layer film including a skin layer including (a) a propylene-based binary copolymer, modified polyolefin, and (e) an anti-blocking agent, a core layer including (b1) an ethylene propylene block copolymer, and (c) an amorphous propylene rubber, and a seal layer including (a) a propylene-based binary copolymer, (b2) an ethylene propylene block copolymer, (d) a slip agent, and (e) an anti-blocking agent.
    Type: Application
    Filed: November 9, 2021
    Publication date: November 7, 2024
    Applicant: LOTTE CHEMICAL CORPORATION
    Inventors: Jin Ju Cho, Min Kyu Kim, Joon Gyu Ahn, Hyun Sup Lee
  • Patent number: 11545041
    Abstract: Provided is a method of avoiding collision of an unmanned aerial vehicle with an obstacle, the method including: calculating two potential fields using ament positional information of the unmanned aerial vehicle, a target point that is set, and positional information of the obstacle measured by a sensor, computing an attractive force and a repulsive force by differentiating the computed potential fields, respectively; computing a direction of a potential force that results from adding up the computed attractive force and repulsive force; and performing control that brings about a change from the computed direction of the potential force to a direction in which the unmanned aerial vehicle moves.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: January 3, 2023
    Assignee: PABLO AIR CO., LTD.
    Inventor: Seoung Gyu Ahn
  • Publication number: 20210272466
    Abstract: Provided is a method of avoiding collision of an unmanned aerial vehicle with an obstacle, the method including: calculating two potential fields using ament positional information of the unmanned aerial vehicle, a target point that is set, and positional information of the obstacle measured by a sensor, computing an attractive force and a repulsive force by differentiating the computed potential fields, respectively; computing a direction of a potential force that results from adding up the computed attractive force and repulsive force; and performing control that brings about a change from the computed direction of the potential force to a direction in which the unmanned aerial vehicle moves.
    Type: Application
    Filed: June 18, 2020
    Publication date: September 2, 2021
    Inventor: Seoung Gyu AHN
  • Patent number: 10325882
    Abstract: A method of manufacturing a semiconductor package includes providing a substrate including a mounting region having a recess space for accommodating a semiconductor chip and a connection region surrounding the mounting region, providing a semiconductor chip in the mounting region, the semiconductor chip including a connection pad provided on a top surface of the semiconductor chip, forming a protective layer covering a top surface of the substrate and the top surface of the semiconductor chip, forming a photosensitive insulating layer on the protective layer after forming the protective layer, patterning the photosensitive insulating layer thereby exposing the protective layer, removing the exposed protective layer, and forming a redistribution line to be electrically connected to the connection pad.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 18, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-woo Kang, Byung-lyul Park, Kyoung-hwan Kim, Kun-sang Park, Young-gyu Ahn
  • Patent number: 10279420
    Abstract: Provided is a rapid manufacturing process of ferrous and non-ferrous parts using a plasma electron beam in which the plasma electron beam is workable even in a low vacuum pressure environment and has a relatively large radiation range, productivity of the process is improved as a high-power beam can be emitted to a ferrous and non-ferrous powder, and production costs are reduced due to low maintenance and manufacturing costs.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: May 7, 2019
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY
    Inventors: Dong Gyu Ahn, Ho Jin Lee
  • Patent number: 10048988
    Abstract: A method of operating an electronic device includes segmenting a second message in a first message, allocating the segmented second message to at least two queues, and performing a parallel-processing of the first message based on the allocated second message.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 14, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Joo Hong, Kyoung-Joong Shin, Dong-Gyu Ahn, Hak-Ryoul Kim, Hyo-Jong Kim, Ji-Ho Ma, Surng-Kyo Oh
  • Publication number: 20180108639
    Abstract: A method of manufacturing a semiconductor package includes providing a substrate including a mounting region having a recess space for accommodating a semiconductor chip and a connection region surrounding the mounting region, providing a semiconductor chip in the mounting region, the semiconductor chip including a connection pad provided on a top surface of the semiconductor chip, forming a protective layer covering a top surface of the substrate and the top surface of the semiconductor chip, forming a photosensitive insulating layer on the protective layer after forming the protective layer, patterning the photosensitive insulating layer thereby exposing the protective layer, removing the exposed protective layer, and forming a redistribution line to be electrically connected to the connection pad.
    Type: Application
    Filed: July 17, 2017
    Publication date: April 19, 2018
    Inventors: Tae-woo Kang, Byung-lyul Park, Kyoung-hwan Kim, Kun-sang Park, Young-gyu Ahn
  • Publication number: 20170120370
    Abstract: Provided is a rapid manufacturing process of ferrous and non-ferrous parts using a plasma electron beam in which the plasma electron beam is workable even in a low vacuum pressure environment and has a relatively large radiation range, productivity of the process is improved as a high-power beam can be emitted to a ferrous and non-ferrous powder, and production costs are reduced due to low maintenance and manufacturing costs.
    Type: Application
    Filed: October 25, 2016
    Publication date: May 4, 2017
    Inventors: Dong Gyu AHN, Ho Jin LEE
  • Patent number: 9523069
    Abstract: The present invention relates to a photobioreactor for microalgae cultivation having a bubble circulation structure, which allows gas flowing into a cultivation space to generate a vortex and thus circulate microalgae, thereby improving cultivation efficiency of the microalgae. A photobioreactor for microalgae cultivation according to an embodiment of the present invention includes a cultivation panel major body having the cultivation space into which the microalgae are injected to be cultivated; a gas supply pipe provided at a lower portion of the cultivation panel major body to pass through the cultivation space in a transverse direction and thus discharge inflow gas; and at least one vortex forming partition extending in a transverse direction from an internal wall of the cultivation panel major body and formed to have an arc shape and thus cause a vortex to an ascending current of gas supplied through the gas supply pipe.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 20, 2016
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY
    Inventors: Sang Hwa Jeong, Jong Rak Park, Jong Tye Kim, Dong Gyu Ahn, Jeong Woo Park
  • Patent number: 9508974
    Abstract: A PET nonwoven fabric for a separator for a secondary battery includes first fibers composed of PET having a melting temperature of 240° C. or more and second fibers composed of PET having a melting temperature of 180˜220° C., respective fibers having two types of fibers having different diameters, and has a fine pore size and uniform pore distribution and exhibits superior surface properties, low surface defects, high mechanical strength and excellent mass production. Even when the temperature of a battery is increased to 200° C. or more, the PET nonwoven fabric has heat resistance which prevents thermal runaway and does not generate melting and shrinking.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: November 29, 2016
    Assignee: TOPTEC HNS CO., LTD.
    Inventors: Hyang Doo Lee, Suk Hwa You, Chun Gi Kang, Seung Yong Jee, Do Hyeuk Hwang, Chang Gyu Ahn, Byoung Min Kwon, Hyun Sook Kim
  • Publication number: 20160142363
    Abstract: A method of operating an electronic device includes segmenting a second message in a first message, allocating the segmented second message to at least two queues, and performing a parallel-processing of the first message based on the allocated second message.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 19, 2016
    Inventors: Young-Joo Hong, Kyoung-Joong Shin, Dong-Gyu Ahn, Hak-Ryoul Kim, Hyo-Jong Kim, Ji-Ho Ma, Surng-Kyo Oh
  • Patent number: 9135390
    Abstract: To design a power supply network of a 3D semiconductor device employing through-silicon-via (TSV) technology, board wiring of each of boards of the device is determined. An initial network structure is created for the boards. A layout of power bumps and through-silicon-vias, using the initial network structure, is produced such that voltages of all nodes of wiring of the boards are greater than a reference voltage. A semiconductor device having boards, power bumps and through-silicon-vias conforming to the layout is fabricated. Thus, the numbers of the through-silicon-vias and the power bumps of the power supply network of the semiconductor device are minimal.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: September 15, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-Soo Jang, Jae-Rim Lee, Jong-Wha Chong, Jae-Hwan Kim, Byung-Gyu Ahn, Cheol-Jon Jang
  • Publication number: 20150221916
    Abstract: A PET nonwoven fabric for a separator for a secondary battery includes first fibers composed of PET having a melting temperature of 240° C. or more and second fibers composed of PET having a melting temperature of 180˜220° C., respective fibers having two types of fibers having different diameters, and has a fine pore size and uniform pore distribution and exhibits superior surface properties, low surface defects, high mechanical strength and excellent mass production. Even when the temperature of a battery is increased to 200° C. or more, the PET nonwoven fabric has heat resistance which prevents thermal runaway and does not generate melting and shrinking.
    Type: Application
    Filed: November 9, 2012
    Publication date: August 6, 2015
    Inventors: Hyang Doo Lee, Suk Hwa You, Chun Gi Kang, Seung Yong Jee, Do Hyeuk Hwang, Chang Gyu Ahn, Byoung Min Kwon, Hyun Sook Kim
  • Publication number: 20150175946
    Abstract: The present invention relates to a photobioreactor for microalgae cultivation having a bubble circulation structure, which allows gas flowing into a cultivation space to generate a vortex and thus circulate microalgae, thereby improving cultivation efficiency of the microalgae. A photobioreactor for microalgae cultivation according to an embodiment of the present invention includes a cultivation panel major body having the cultivation space into which the microalgae are injected to be cultivated; a gas supply pipe provided at a lower portion of the cultivation panel major body to pass through the cultivation space in a transverse direction and thus discharge inflow gas; and at least one vortex forming partition extending in a transverse direction from an internal wall of the cultivation panel major body and formed to have an arc shape and thus cause a vortex to an ascending current of gas supplied through the gas supply pipe.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 25, 2015
    Inventors: Sang Hwa Jeong, Jong Rak Park, Jong Tye Kim, Dong Gyu Ahn, Jeong Woo Park
  • Publication number: 20140380262
    Abstract: To design a power supply network of a 3D semiconductor device employing through-silicon-via (TSV) technology, board wiring of each of boards of the device is determined. An initial network structure is created for the boards. A layout of power bumps and through-silicon-vias, using the initial network structure, is produced such that voltages of all nodes of wiring of the boards are greater than a reference voltage. A semiconductor device having boards, power bumps and through-silicon-vias conforming to the layout is fabricated.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 25, 2014
    Applicant: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: MYUNG-SOO JANG, JAE-RIM LEE, JONG-WHA CHONG, JAE-HWAN KIM, BYUNG-GYU AHN, CHEOL-JON JANG
  • Patent number: 8724116
    Abstract: Provided is a scanning optical measurement apparatus having super resolution.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: May 13, 2014
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Seung-Han Park, Dae-Geun Kim, Hong-Gyu Ahn, Eung-Jang Lee
  • Patent number: 8688039
    Abstract: A method for providing information by an information providing device with a Bluetooth module in an information broadcast service based on Bluetooth. The method includes broadcasting an inquiry signal to provide the information; receiving an inquiry response signal; determining if a broadcast request is included in the inquiry response signal; and delivering the information to a Bluetooth device that sent the inquiry response signal, when a broadcast request is included in the inquiry response signal.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Gyu Ahn, Keun-Ho Shin
  • Patent number: 8048934
    Abstract: A composition for acrylic artificial stone, the composition including a (meth)acrylic monomer and an inorganic material. At least one of the (meth)acrylic monomer and the inorganic material may be contained in a component generated by decomposing a polymeric (meth)acrylic resin.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: November 1, 2011
    Assignee: Cheil Industries, Inc.
    Inventors: Myeong Cheon Jeon, Hyeong Gyu Ahn, Jong Gap Kim, Hae Mun Jung, Seung Hwa Jeong, Bang Jun Park
  • Publication number: 20110119510
    Abstract: An apparatus and method for reducing power consumption in a portable terminal are provided. The apparatus includes a mode manager for, if determining data reception before sleep mode entry, processing to convert a state of a controller into a wakeup state and to complete the data reception and, if determining data non-reception before the sleep mode entry, converting a state of the controller into a sleep state at the same time as the sleep mode entry.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 19, 2011
    Applicant: Samsung Electronics Co. Ltd.
    Inventor: Dong-Gyu AHN