Patents by Inventor Dong-Jin Joo

Dong-Jin Joo 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).

  • Publication number: 20210013897
    Abstract: Provided are an apparatus and a method for measuring a frequency of a broadband signal by using low-speed ADCs having sub-Nyquist sampling rates. A plurality of channels each including a low-speed ADC having a sub-Nyquist sampling rate (e.g. sampling frequency from several MHz to hundreds of MHz) are provided, and the frequency of an input signal corresponding to a combination of frequencies calculated through the respective channels is estimated. Therefore, as the number of channels increases, the range of measurable frequencies may be extended.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Inventors: Sang Won KIM, Dong Keun LEE, Jeung Min JOO, Jung Hoon KIM, Sung Jin JO, Un Seob JEONG
  • Patent number: 10842468
    Abstract: Disclosed herein is a sample collection apparatus. The sample collection apparatus includes a self-sampling pad and a cell fixing container, wherein the sample collection pad includes a filter unit, the structure and material of which are such that cells, viruses and DNAs contained in vaginal secretions can be efficiently absorbed and attached to the filter unit and can be efficiently detached from the filter unit in a cell preserving solution after the filter unit is removed and put into the cell preserving solution. Thus, the filter unit includes at least one adsorbent layer which is formed of a hydrophobic material having low fineness and high resilience.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: November 24, 2020
    Assignee: TCM BIOSCIENCES INC.
    Inventors: Young Chui Park, Hee Jae Joo, Dong Jin Shin
  • Publication number: 20200100772
    Abstract: Disclosed herein is a sample collection apparatus. The sample collection apparatus includes a self-sampling pad and a cell fixing container, wherein the sample collection pad includes a filter unit, the structure and material of which are such that cells, viruses and DNAs contained in vaginal secretions can be efficiently absorbed and attached to the filter unit and can be efficiently detached from the filter unit in a cell preserving solution after the filter unit is removed and put into the cell preserving solution. Thus, the filter unit includes at least one adsorbent layer which is formed of a hydrophobic material having low fineness and high resilience.
    Type: Application
    Filed: July 12, 2017
    Publication date: April 2, 2020
    Inventors: Young Chul PARK, Hee Jae JOO, Dong Jin SHIN
  • Patent number: 10608225
    Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: March 31, 2020
    Assignees: SK Innovation Co., Ltd., SK IE Technology Co., Ltd.
    Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
  • Publication number: 20190392360
    Abstract: The present invention relates to a power transformer asset management device and a method thereof, the device according to the present invention including: a full cycle database managing full cycle data of a power transformer; a physical performance evaluation unit performing physical performance evaluation that calculates a health index by analyzing and weighting life information, a failure ratio, operation history, and status information of a preventive diagnosis system from the full cycle data; a risk evaluation unit performing risk evaluation by generating a risk matrix using the physical performance evaluation result; an economic evaluation unit performing economic evaluation by evaluating costs over a full cycle of the power transformer; and an asset management unit establishing an investment plan for replacing the power transformer according to a maintenance priority of the power transformer determined using the physical performance evaluation result, the risk evaluation result, and the economic evalua
    Type: Application
    Filed: August 4, 2017
    Publication date: December 26, 2019
    Inventors: Dong-Jin KWEON, Byoung-Soo JOO, Yong-Beum YOON
  • Patent number: 10509547
    Abstract: Electronic devices and methods for controlling a display are provided. The method includes extracting at least one function applicable to at least two applications displayed on a display, displaying the extracted at least one function as an icon, and applying a function corresponding to the displayed icon to at least one application of the at least two applications, corresponding to selection of the displayed icon.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: December 17, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Han-Ju Cho, Dong-Jun Shin, Doo-Suk Kang, Ji-Eun Yang, Eun-Ju Lee, Jae-Seok Joo, In-Ji Jin
  • Patent number: 10470131
    Abstract: An electronic device according to various embodiments may include a communication circuit, including a reception circuit and a transmission circuit, and a processor. The processor may be configured to: receive at least one piece of identification information corresponding to at least one external electronic device for providing a traffic-related signal to at least one vehicle outside the electronic device, via the reception circuit, identify the position of the electronic device, based at least on the at least one piece of identification information, and activate the transmission circuit to transmit movement-related information of the electronic device to the at least one vehicle or the at least one external electronic device, based at least on the position.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: November 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Il Son, A-Reum Choi, Sun-Min Hwang, Ga-Jin Song, Ki-Ho Cho, Jong-Sung Joo
  • Patent number: 10454087
    Abstract: Provided are a separator for a lithium secondary battery in which an entire thickness of the separator and a ratio of a heat-resistant layer included in the separator satisfy specific ranges, respectively, and a battery including the same. The separator has significantly excellent heat resistance and mechanical strength, and it is possible to manufacture a high capacity and high output battery using the separator, thereby making it possible to significantly improve safety even in the high capacity and the high output battery.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: October 22, 2019
    Assignees: SK Innovation Co., Ltd., SK IE Technology Co., Ltd.
    Inventors: Dong Jin Joo, Yun Bong Kim, Su Ji Lee, Kyu Young Cho
  • Patent number: 10333126
    Abstract: The present invention relates to a composite separation membrane for a lithium secondary battery having excellent lifetime and safety improvement effects, and a preparation method therefor and, more specifically, to a composite separation membrane for a lithium secondary battery, including: a porous base layer; a heat resistant layer formed on one surface or both surfaces of the porous base layer; and a fusion layer formed on the outermost layer. Inorganic particles in the heat resistant layer are connected and fixed by a binder polymer, and the fusion layer is prepared by comprising amorphous polymer particles having a glass transition temperature of 30 to 90° C. and a difference between a fusion temperature and the glass transition temperature of 60° C. or lower.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: June 25, 2019
    Assignee: SK Innovation Co., Ltd.
    Inventors: Dong Jin Joo, Su Ji Lee, Kyu Young Cho, Yun Bong Kim, Jae Woong Kim
  • Publication number: 20180114968
    Abstract: The present invention relates to a composite separation membrane for a lithium secondary battery having excellent lifetime and safety improvement effects, and a preparation method therefor and, more specifically, to a composite separation membrane for a lithium secondary battery, including: a porous base layer; a heat resistant layer formed on one surface or both surfaces of the porous base layer; and a fusion layer formed on the outermost layer. Inorganic particles in the heat resistant layer are connected and fixed by a binder polymer, and the fusion layer is prepared by comprising amorphous polymer particles having a glass transition temperature of 30 to 90° C. and a difference between a fusion temperature and the glass transition temperature of 60° C. or lower.
    Type: Application
    Filed: April 1, 2016
    Publication date: April 26, 2018
    Inventors: Dong Jin Joo, Su Ji Lee, Kyu Young Cho, Yun Bong Kim, Jae Woong Kim
  • Publication number: 20180102525
    Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.
    Type: Application
    Filed: December 8, 2017
    Publication date: April 12, 2018
    Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
  • Publication number: 20180097216
    Abstract: The present invention relates to a composite separation membrane for a lithium secondary battery, having an excellent effect of improving the life time and safety of a battery and a lithium secondary battery including the membrane. The composite separation membrane includes a porous base layer; a heat-resistant layer formed on one side or both sides of the porous base layer; and a fusion layer formed on an outermost layer. The heat-resistant layer includes inorganic particles connected and fixed by binder polymers, and the fusion layer includes crystalline polymers in the form of particles having a melting temperature of 100° C. or higher.
    Type: Application
    Filed: April 1, 2016
    Publication date: April 5, 2018
    Inventors: Dong Jin Joo, Su Ji Lee, Kyu Young Cho, Yun Bong Kim, Jae Woong Kim
  • Patent number: 9853273
    Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 26, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
  • Publication number: 20170361283
    Abstract: Provided is an ultra large-width coating device applied to a consecutive process. More particularly, the present invention relates to a coating device capable of maximizing productivity by consecutively manufacturing a large-width film without reducing physical properties of the manufactured film by overcoming a problem in that a coating width is limited during a coating process using the existing contact type coating roller, and a method for manufacturing an ultra large-width membrane using the same.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 21, 2017
    Inventors: Dong Jin JOO, Kyu Young CHO, Yun Bong KIM, Su Ji LEE, Won Sub KWACK, Hye Jin KIM
  • Patent number: 9799869
    Abstract: The following disclosure relates to a microporous polyolefin composite film having excellent heat resistance and thermal stability, and a method for manufacturing the same. More particularly, the present invention relates to a microporous polyolefin composite film capable of improving stability and reliability of a battery by heat sealing an edge of a microporous film provided with a coating layer that includes a polymer binder and inorganic particles, and a method for manufacturing the same.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: October 24, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong Kyoung Kim, Jae Woong Kim, Young Jun Woo, Jang-Weon Rhee, Dong Jin Joo
  • Publication number: 20170294638
    Abstract: Provided are a separator for a lithium secondary battery in which an entire thickness of the separator and a ratio of a heat-resistant layer included in the separator satisfy specific ranges, respectively, and a battery including the same. The separator has significantly excellent heat resistance and mechanical strength, and it is possible to manufacture a high capacity and high output battery using the separator, thereby making it possible to significantly improve safety even in the high capacity and the high output battery.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 12, 2017
    Inventors: Dong Jin Joo, Yun Bong Kim, Su Ji Lee, Kyu Young Cho
  • Patent number: 9564624
    Abstract: Disclosed is a microporous composite film having a coating layer formed on at least one surface of a microporous polyolefin film, wherein the coating layer simultaneously includes a high thermostable polymer resin and inorganic particles. More specifically, the present invention relates to a microporous composite film in which an area shrinkage at 170° C. for 1 hr is 10% or less; a tensile modulus in each of a machine direction and a transverse direction at 130° C. is 0.5 MPa to 7.0 MPa; a ratio between permeability of a microporous composite film (CCSp) and permeability of a microporous polyolefin film (Sp) is 1.1?CCSp/Sp?3.5; and a permeability of the microporous composite film is 450 sec or less.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: February 7, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong Kyoung Kim, Jang Weon Rhee, Dong Jin Joo, Je An Lee, Jung Moon Sung
  • Patent number: 9562164
    Abstract: Provided is a micro-porous polyolefin composite film, the micro-porous polyolefin composite film including a porous coating layer containing a polymer binder and inorganic particles, the polymer binder simultaneously employing an aqueous polymer and a non-aqueous polymer. The contents of the aqueous polymer and the non-aqueous polymer are controlled, and thus optimize heat resistance, adhesive strength, and the moisture content to thereby improve high-temperature stability, and, further, improve the adhesive strength to thereby improve stability in production, and minimize the moisture content to thereby improve reliability of a battery.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: February 7, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong Kyoung Kim, Jang-Weon Rhee, Dong Jin Joo, Young Jun Woo, Jae Woong Kim
  • Publication number: 20150333311
    Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.
    Type: Application
    Filed: December 23, 2013
    Publication date: November 19, 2015
    Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
  • Publication number: 20150004467
    Abstract: The following disclosure relates to a microporous polyolefin composite film having excellent heat resistance and thermal stability, and a method for manufacturing the same. More particularly, the present invention relates to a microporous polyolefin composite film capable of improving stability and reliability of a battery by heat sealing an edge of a microporous film provided with a coating layer that includes a polymer binder and inorganic particles, and a method for manufacturing the same.
    Type: Application
    Filed: February 7, 2013
    Publication date: January 1, 2015
    Inventors: Yong Kyoung Kim, Jae Woong Kim, Young Jun Woo, Jang-Weon Rhee, Dong Jin Joo