Patents by Inventor Chang-Woo Yoo

Chang-Woo Yoo 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: 20250218913
    Abstract: A circuit board according to an embodiment comprises a build-up structure including a plurality of insulating layers stacked along a vertical direction; a protective layer disposed on the build-up structure; and a plurality of insulating members disposed on the protective layer and spaced apart from each other.
    Type: Application
    Filed: March 15, 2024
    Publication date: July 3, 2025
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Su Min LEE, Dae Young KU, Ji Hoon KIM, Dae Sung MOON, Byung Wook WOO, Chang Woo YOO, Sang Hyun LEE, Ju Hyun LEE
  • Publication number: 20250185160
    Abstract: A circuit board according to an embodiment includes a first insulating layer including an upper and lower surface; and a first circuit pattern embedded at the upper surface of the first insulating layer, wherein the upper surface of the first insulating layer includes a portion that does not overlap the first circuit pattern in a vertical direction, and the portion of the upper surface of the first insulating layer has a step.
    Type: Application
    Filed: July 29, 2022
    Publication date: June 5, 2025
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Myung Jae KWON, Sang Hyuck NAM, Ki Su YEO, Chang Woo YOO
  • Patent number: 12034214
    Abstract: The present invention relates to an antenna apparatus and, in particular, comprises: a main housing having an inner space formed therein so as to embed a main board and having a plurality of radiating fins provided on an outer surface thereof; a cover housing provided so as to shield the inner space of the main housing and having a plurality of radiating fins provided on an outer surface thereof; and a plurality of unit antenna blocks detachably coupled so as to occupy a portion of the outer surface of the cover housing, and having an antenna substrate embedded therein, the antenna substrate having one or more antenna elements and one or more antenna filters combined thereto, wherein the plurality of unit antenna blocks are signal-connected to the main board via at least one connecting card, thereby providing an advantage that dual banding can be realized as well as enabling effective heat dissipation.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: July 9, 2024
    Assignee: KMW INC.
    Inventors: Chang Woo Yoo, Kyo Sung Ji, Min Seon Yun, Hye Yeon Kim
  • Patent number: 12034208
    Abstract: The present invention relates to a multi-input and multi-output antenna apparatus, and in particular, the antenna apparatus provides an advantage of easy heat dissipation and calibration control by comprising: an antenna unit in which a transmission and reception substrate and an antenna substrate having a plurality of electric elements provided on one surface or the other surface thereof are stacked and arranged in the front-rear direction; a control unit in which a BB substrate and a PSU substrate having a plurality of electric elements provided on one surface or the other surface thereof are stacked and arranged in the front-rear direction, and which is provided so as to enable calibration control by using a connection between the antenna unit and a power supply or a control signal; and at least one connecting card which is provided so as to enable connection of the power supply or the control signal between the antenna unit and the control unit.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: July 9, 2024
    Assignee: KMW INC.
    Inventors: Kyo Sung Ji, Chang Woo Yoo, Hye Yeon Kim
  • Patent number: 12021294
    Abstract: The present invention relates to a clamping device for an antenna and, in particular, to a clamping device for an antenna which include: an arm unit coupled to a support pole and having a rotating shaft groove opening upward in a front end portion; a rotation unit detachably mounted in the rotating shaft hole of the arm unit and coupled to be rotatable at a predetermined angle in the left and right direction around the rotating shaft hole; and a tilting unit coupled to the front end portion of the rotation unit so as to be tiltable in the vertical direction while mediating coupling of an antenna device. Due to this feature, the clamping device for an antenna provides the advantages of eliminating spatial limitations on a plurality of antenna devices for the support pole and improving workability.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: June 25, 2024
    Assignee: KMW INC.
    Inventors: Chang Woo Yoo, Jin Soo Yeo, In-Ho Kim
  • Publication number: 20240186675
    Abstract: A clamping apparatus is provided. The clamping apparatus includes: an arm unit configured to be coupled to a support pole and has a mounting space formed in a tip portion thereof; and a rotation unit comprising a rotating block which is configured to be inserted into the mounting space of the arm unit and tilting unit installing stages provided at an opposite side of the rotating block, wherein the rotating block is configured to be detachably mounted in the mounting space of the arm unit and rotatable about a hinge point in the mounting space at a predetermined angle in a left-right direction. The rotating block comprises a mounting guide unit having an upper surface and a lower surface, and the mounting guide unit comprises a guide tube provided on the lower surface and configured to protrude from the lower surface to penetrate a hinge hole provided on a lower surface of the mounting space of the arm unit at a corresponding location of the hinge point.
    Type: Application
    Filed: February 11, 2024
    Publication date: June 6, 2024
    Applicant: KMW INC.
    Inventors: Chang Woo YOO, Jin Soo YEO, In-Ho KIM
  • Patent number: 11978946
    Abstract: The present disclosure relates to a clamping apparatus for an antenna, and more particularly, to a clamping apparatus for an antenna including: an arm unit coupled to a support pole and having an upwardly open rotating shaft hole formed in a front end thereof; a rotation unit detachably mounted to the rotating shaft hole of the arm unit and coupled to be rotatable about the rotating shaft hole at a predetermined angle in a left-right direction; and a tilting unit detachably mounted to a tilting shaft hole of the front end of the rotation unit, and coupled to be tiltable about the tilting shaft hole at a predetermined angle in a top-down direction, wherein the rotation unit is configured such that a rotating shaft rod serving as the center of the rotating motion is rotatably fixed to the arm unit through a rotating coupling member, and the tilting unit is configured such that the tilting shaft rod serving as the center of the tilting motion is tiltably fixed to the rotation unit through a tilting coupling memb
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: May 7, 2024
    Assignee: KMW INC.
    Inventors: Chang Woo Yoo, Kyo Sung Ji
  • Patent number: 11909094
    Abstract: The present invention relates to a clamping apparatus for an antenna. Particularly, the clamping apparatus comprises: an arm unit which is coupled to a support pole and has a mounting space formed in a tip portion thereof and open in a longitudinal direction; a rotation unit which is detachably mounted in the mounting space of the arm unit and has a tip portion coupled to be rotatable predetermined angle in the left and right directions with respect to a hinge point in the mounting space; a tilting unit which is coupled to the tip portion of the rotation unit so as to be tiltable in the up and down directions and mediates the coupling of an antenna device; and a mounting guide unit which is provided in the rotation unit, and is elastically pressed and then temporarily fixed to the hinge point of the mounting space when the rotation unit is mounted in the mounting space of the arm unit.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: February 20, 2024
    Assignee: KMW INC.
    Inventors: Chang Woo Yoo, Jin Soo Yeo, In-Ho Kim
  • Patent number: 11888207
    Abstract: An antenna apparatus is disclosed, including a lower housing, a middle housing disposed on the lower housing and having one surface formed with one or more first heat dissipation fins, a first accommodation space formed by the lower housing and the middle housing, at least one first heat-generating element disposed in the first accommodation space, one or more heat dissipation supports each disposed on the middle housing and having at least one surface formed with one or more second heat dissipation fins, and an antenna module supported on the one or more heat dissipation supports.
    Type: Grant
    Filed: December 19, 2021
    Date of Patent: January 30, 2024
    Assignee: KMW INC.
    Inventors: Kyo Sung Ji, Chang Woo Yoo, Bae Mook Jeong, Min Seon Yun, Jin Soo Yeo
  • Publication number: 20230413425
    Abstract: A circuit board according to an embodiment includes a first insulating layer including a first region and a second region; and a first circuit pattern layer disposed on the first insulating layer; wherein the first circuit pattern layer includes a first electrode disposed on the first region of the first insulating layer and including a first opening, and wherein the first opening pass through upper and lower surfaces of the first electrode.
    Type: Application
    Filed: November 19, 2021
    Publication date: December 21, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Myung Jae KWON, Dong Sun KIM, Sang Hyuck NAM, Sung Wuk RYU, Chang Woo YOO, Ju Hyun LEE
  • Patent number: 11831364
    Abstract: Provided is a multiple-input multiple-output (MIMO) antenna having a lightweight stacked structure. According to one aspect of the present invention, there is provided a MIMO antenna assembly having a lightweight stacked structure, in which a calibration network, which was provided between antenna elements and filters in the related art, is provided on one printed circuit board (PCB), together with a power amplifier and a digital circuit, and filters are closely coupled to the bottom of the PCB on which the feeding network is provided. The present invention employs a strategy in which an antenna assembly is reduced to a compact size while managing phase deviation caused due to filters at an acceptable level.
    Type: Grant
    Filed: July 4, 2021
    Date of Patent: November 28, 2023
    Assignee: KMW INC.
    Inventors: Duk Yong Kim, Bae Mook Jeong, Chang Woo Yoo, Young Chan Moon, Nam Shin Park, Bum Sik Park, Min Seon Yun, Min Sik Park, Sung Ho Jang
  • Patent number: 11831064
    Abstract: The present invention relates to an antenna apparatus, which specifically comprises: a filter unit which is disposed to form at least one layer; an electric appliance unit which is coupled and is spaced apart from the filter unit to form a layer different from that of the filter unit, and includes various electric devices installed therein; a filter unit heat dissipation module which is coupled to the opposite surface of a surface of the filter unit, the surface being coupled to the electric appliance unit, and thus radiates heat generated from the filter unit to the outside; and an electric appliance unit heat dissipation module including a first electric appliance unit heat dissipation module and a second electric appliance unit heat dissipation module, wherein: the first electric appliance unit heat dissipation module is coupled to the opposite surface of a surface of the electric appliance unit, the surface being coupled to the filter unit, and thus radiates, to the outside, heat generated from first heat
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: November 28, 2023
    Assignee: KMW INC.
    Inventors: Chang Woo Yoo, Min Sik Park
  • Patent number: 11736156
    Abstract: Provided is a multiple-input multiple-output (MIMO) antenna having a lightweight stacked structure. According to one aspect of the present invention, there is provided a MIMO antenna assembly having a lightweight stacked structure, in which a calibration network, which was provided between antenna elements and filters in the related art, is provided on one printed circuit board (PCB), together with a power amplifier and a digital circuit, and filters are closely coupled to the bottom of the PCB on which the feeding network is provided. The present invention employs a strategy in which an antenna assembly is reduced to a compact size while managing phase deviation caused due to filters at an acceptable level.
    Type: Grant
    Filed: July 4, 2021
    Date of Patent: August 22, 2023
    Assignee: KMW INC.
    Inventors: Duk Yong Kim, Bae Mook Jeong, Chang Woo Yoo, Young Chan Moon, Nam Shin Park, Bum Sik Park, Min Seon Yun, Min Sik Park, Sung Ho Jang
  • Patent number: 11735803
    Abstract: The present invention relates to an antenna apparatus, which specifically comprises: a filter unit which is disposed to form at least one layer; an electric appliance unit which is coupled and is spaced apart from the filter unit to form a layer different from that of the filter unit, and includes various electric devices installed therein; a filter unit heat dissipation module which is coupled to the opposite surface of a surface of the filter unit, the surface being coupled to the electric appliance unit, and thus radiates heat generated from the filter unit to the outside; and an electric appliance unit heat dissipation module including a first electric appliance unit heat dissipation module and a second electric appliance unit heat dissipation module, wherein: the first electric appliance unit heat dissipation module is coupled to the opposite surface of a surface of the electric appliance unit, the surface being coupled to the filter unit, and thus radiates, to the outside, heat generated from first heat
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: August 22, 2023
    Assignee: KMW INC.
    Inventors: Chang Woo Yoo, Min Sik Park
  • Patent number: 11646481
    Abstract: The present disclosure relates to an MIMO antenna apparatus, and in particular, includes a PCB having at least one heat-generation element provided on one surface thereof, a first heat-dissipation part disposed to cover one surface of the PCB, having a through hole formed in a portion corresponding to the position provided with the heat-generation element, and having a plurality of vertical heat-dissipation fins formed to be extended in a direction perpendicular to the outside surface thereof, and a second heat-dissipation part detachably coupled to the through hole to contact one surface of the heat-generation element to receive heat from the heat-generation element and to dissipate heat at a long distance father than the first heat-dissipation part, thereby enhancing heat-dissipation performance and expanding universality of a product.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: May 9, 2023
    Assignee: KMW INC.
    Inventors: Chang Woo Yoo, In Ho Kim, Min Sik Park, Hye Yeon Kim
  • Patent number: 11398665
    Abstract: The present disclosure relates to a heat-radiating mechanism for an antenna device, and particularly, includes: a plurality of communication elements generating predetermined heat upon electrical operation, a heat-radiating combined case having the plurality of communication elements accommodated in one surface thereof and a plurality of heat-radiating ribs integrally formed on the other surface thereof, and an antenna board mounted with the plurality of communication elements on one surface of the heat-radiating combined case, in which the plurality of heat-radiating ribs are formed such that the rising airflow formed by being heat-radiated from the relatively lower portion of the heat-radiating combined case is exhausted to be inclined upward to the left and right outsides of the heat-radiating combined case in the width direction from the relatively upper position, thereby improving the heat-radiating performance of the antenna device.
    Type: Grant
    Filed: November 28, 2020
    Date of Patent: July 26, 2022
    Assignee: KMW, INC.
    Inventors: Chang Woo Yoo, Min Sik Park, Jun Woo Yang
  • Publication number: 20220140869
    Abstract: The present invention relates to a multi-input and multi-output antenna apparatus, and in particular, the antenna apparatus provides an advantage of easy heat dissipation and calibration control by comprising: an antenna unit in which a transmission and reception substrate and an antenna substrate having a plurality of electric elements provided on one surface or the other surface thereof are stacked and arranged in the front-rear direction; a control unit in which a BB substrate and a PSU substrate having a plurality of electric elements provided on one surface or the other surface thereof are stacked and arranged in the front-rear direction, and which is provided so as to enable calibration control by using a connection between the antenna unit and a power supply or a control signal; and at least one connecting card which is provided so as to enable connection of the power supply or the control signal between the antenna unit and the control unit.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Applicant: KMW INC.
    Inventors: Kyo Sung JI, Chang Woo YOO, Hye Yeon KIM
  • Patent number: 11324106
    Abstract: A cooling apparatus for an electronic element is provided. The cooling apparatus includes a printed circuit board, a housing main body, an additional cooling part, and a heat transfer part. The printed circuit board includes one surface and another surface. A plurality of electronic elements are provided on the one surface of the printed circuit board. The housing main body includes an inner surface and an outer surface. The another surface of the printed circuit board is attached to the inner surface of the housing main body, and the outer surface of the housing main body has a plurality of first cooling ribs provided to protrude therefrom. The additional cooling part is disposed to be spaced apart from the outer surface of the housing main body, and dissipates heat transferred from the housing main body.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 3, 2022
    Assignee: KMW INC.
    Inventors: Duk Yong Kim, Jun Woo Yang, Jin Soo Yeo, Chang Woo Yoo, Min Sik Park, Hye Yeon Kim
  • Publication number: 20220115760
    Abstract: An antenna apparatus is disclosed, including a lower housing, a middle housing disposed on the lower housing and having one surface formed with one or more first heat dissipation fins, a first accommodation space formed by the lower housing and the middle housing, at least one first heat-generating element disposed in the first accommodation space, one or more heat dissipation supports each disposed on the middle housing and having at least one surface formed with one or more second heat dissipation fins, and an antenna module supported on the one or more heat dissipation supports.
    Type: Application
    Filed: December 19, 2021
    Publication date: April 14, 2022
    Applicant: KMW INC.
    Inventors: Kyo Sung JI, Chang Woo YOO, Bae Mook JEONG, Min Seon YUN, Jin Soo YEO
  • Publication number: 20220069476
    Abstract: The present invention relates to an antenna apparatus and, in particular, comprises: a main housing having an inner space formed therein so as to embed a main board and having a plurality of radiating fins provided on an outer surface thereof; a cover housing provided so as to shield the inner space of the main housing and having a plurality of radiating fins provided on an outer surface thereof; and a plurality of unit antenna blocks detachably coupled so as to occupy a portion of the outer surface of the cover housing, and having an antenna substrate embedded therein, the antenna substrate having one or more antenna elements and one or more antenna filters combined thereto, wherein the plurality of unit antenna blocks are signal-connected to the main board via at least one connecting card, thereby providing an advantage that dual banding can be realized as well as enabling effective heat dissipation.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Applicant: KMW INC.
    Inventors: Chang Woo YOO, Kyo Sung JI, Min Seon YUN, Hye Yeon KIM