Patents by Inventor Tae Jun Choi

Tae Jun Choi 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: 20220157510
    Abstract: A coil component includes a body having one surface and the other surface, opposing each other, both lateral surfaces respectively connecting the one surface and the other surface and opposing each other, and both end surfaces respectively connecting the both lateral surfaces and opposing each other; a coil unit disposed in the body; a first external electrode and a second external electrode, respectively connected to the coil unit and disposed to be spaced apart from each other on the one surface of the body; and a first insulating layer covering the other surface of the body, the both lateral surfaces of the body, and the both end surfaces of the body.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 19, 2022
    Inventors: Ju Hwan Yang, Seung Mo Lim, Tae Jun Choi, Byung Soo Kang, Yong Hui Li, Tai Yon Cho, No Il Park, Yoon Mi Cha, Boum Seock Kim, Seung Min Lee
  • Patent number: 11335496
    Abstract: A coil component includes a body having a bottom surface and a top surface opposing each other in one direction, and a plurality of walls each connecting the bottom surface to the top surface of the body; recesses respectively formed in both front and rear surfaces of the body opposing each other among the plurality of walls of the body and extending up to the bottom surface of the body; a coil portion buried in the body and including first and second lead-out portions exposed to internal walls and lower ledge surfaces of the recesses; first and second external electrodes respectively including connection portions disposed in the recesses and extended portions disposed on the bottom surface of the body, and connected to the coil portion; a shielding layer including a cap portion disposed on the top surface of the body and side wall portions respectively disposed on the plurality of walls of the body; and an insulating layer disposed between the body and the shielding layer and extending onto lower ledge surfa
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 17, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byung Soo Kang, Tai Yon Cho, Yoon Mi Cha, Ju Hwan Yang, Jeong Suong Yang, No Il Park, Byeong Cheol Moon, Tae Jun Choi, Seung Mo Lim
  • Publication number: 20220148794
    Abstract: A coil component includes a body including a first insulating resin, a coil unit disposed in the body, and first and second external electrodes disposed to be spaced apart from each other on the body and connected to the coil unit, wherein a first surface of the body has a recess portion, and an identification portion is disposed in the recess portion and includes a second insulating resin.
    Type: Application
    Filed: February 16, 2021
    Publication date: May 12, 2022
    Inventors: No Il PARK, Seung Mo LIM, Tae Jun CHOI, Boum Seock KIM, Tai Yon CHO, Byung Soo KANG
  • Publication number: 20220148789
    Abstract: A coil component includes a body having a first surface and a first end surface and a second end surface each connected to the first surface and opposing each other, a support substrate disposed in the body, a coil unit including a first coil pattern, a first lead pattern and a second lead pattern respectively disposed on a first surface of the support substrate opposing the first surface of the body, first and second slit portions respectively disposed in edge portions between the first end surface and the second end surface of the body and exposing the first and second lead patterns, and first and second external electrodes arranged in the first and second slit portions and connected to the coil unit, wherein a ratio of a line width of any one of the first and second lead patterns to a line width of any one turn of the first coil pattern satisfies 1 to 1.5.
    Type: Application
    Filed: February 4, 2021
    Publication date: May 12, 2022
    Inventors: No Il Park, Seung Mo Lim, Tae Jun Choi, Boum Seock Kim, Byung Soo Kang
  • Publication number: 20220102065
    Abstract: A coil component includes a body having one surface, and one end surface and the other end surface connected to the one surface and opposing each other; a coil portion including lead-out patterns within the body; slit portions respectively disposed in an edge portion between the one end surface and the one surface of the body and an edge portion between the other end surface and the one surface of the body to expose the lead-out patterns; external electrodes disposed to be spaced apart from each other on the one surface and respectively extending to the slit portions to be connected to the lead-out patterns; and surface insulating layers, respectively disposed on the one end surface and the other end surface of the body. The surface insulating layers include a first insulating thin film including silicon dioxide (SiO2), and a second insulating thin film including aluminum oxide (Al2O3).
    Type: Application
    Filed: November 24, 2020
    Publication date: March 31, 2022
    Inventors: Ju Hwan YANG, Seung Mo LIM, Tae Jun CHOI, Byung Soo KANG, Boum Seock KIM
  • Patent number: 11282636
    Abstract: A coil component includes a body including a magnetic metal powder, and a coil portion in the body. First and second external electrodes are disposed on one surface of the body and connected to the coil portion, and a third external electrode includes a pad portion disposed on the one surface of the body and a side surface portion disposed on at least one side surface of the body. An insulating layer covers surfaces of the body other than the one surface and has an opening exposing the side surface portion of the third external electrode. A shielding layer is disposed on the insulating layer and is connected to the side surface portion of the third external electrode through the opening.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 22, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ju Hwan Yang, Byung Soo Kang, Tae Jun Choi, Byeong Cheol Moon
  • Publication number: 20210383959
    Abstract: 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: Application
    Filed: November 6, 2020
    Publication date: December 9, 2021
    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
  • Patent number: 11195652
    Abstract: A coil component includes: a body having one surface and the other surface opposing each other in one direction; a coil portion including a coil pattern having at least one turn around the one direction, and embedded in the body; an external electrode disposed on the one surface of the body and connected to the coil portion; a shielding layer disposed on the other surface of the body; and an insulating layer disposed between the body and the shielding layer.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 7, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tai Yon Cho, Tae Jun Choi, Jung Young Cho, Chang Hak Choi, Byeong Cheol Moon, Seung Hee Oh
  • Publication number: 20210350976
    Abstract: A coil component includes a body having one surface and the other surface, opposing each other, and wall surfaces, and including a metal magnetic powder particle and an insulating resin; a coil portion disposed in the body and including first and second lead-out portions exposed from the one surface of the body to be spaced apart from each other; first and second external electrodes arranged on the one surface of the body to be spaced apart from each other and respectively connected to the first and second lead-out portions; a cover insulating layer covering the other surface of the body and extending to at least portion of each of the wall surfaces of the body; and an oxide insulating film disposed on a surface of the metal magnetic powder particle exposed from the one surface of the body and including metal ions of the metal magnetic powder particle.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 11, 2021
    Inventors: Byung Soo KANG, Byeong Cheol MOON, Ju Hwan YANG, Yoon Mi CHA, Tai Yon CHO, Tae Jun CHOI
  • Patent number: 11152147
    Abstract: A coil component includes: a body having a first surface and a second surface opposing each other in a thickness direction of the body and a wall surface connecting the first and second surfaces; a coil part including coil patterns and including at least one turn centered on the thickness direction; external electrodes disposed on the first surface of the body and electrically connected to the coil part; a shielding layer including a cap portion disposed on the second surface of the body and side wall portions disposed on the wall surface of the body and each having a first end connected to the cap portion; an insulating layer disposed between the body and the shielding layer; and a gap portion bounded by a second end of the shielding layer opposing the first end and the first surface of the body to expose portions of the wall surface.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tai Yon Cho, Chang Hak Choi, Byeong Cheol Moon, Sang Jong Lee, Hee Soo Yoon, Tae Jun Choi, Seung Hee Oh, Su Bong Jang
  • Patent number: 10923822
    Abstract: A wireless communications antenna includes: a magnetic body including one or more slits formed therein; and a coil part having solenoid form and disposed around the magnetic body, wherein the one or more slits are configured such that the magnetic body is not disconnected and a magnetic path of the magnetic body is continuous.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: February 16, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Tae Jun Choi, Jung Young Cho, Seung Hee Oh, Sung Nam Cho, Chang Hak Choi
  • Publication number: 20200381170
    Abstract: A coil component includes a body having one surface and the other surface and a plurality of wall surfaces, first and second insulating substrates spaced apart from each other, first and second recesses disposed in both end surfaces of the body and extending to one surface of the body, first and second coil portions disposed on the first and second insulating substrates, one ends and the other ends of the first and second coil portions being exposed to the first and second recesses, first and second external electrodes disposed along an inner surface of the first recess and one surface of the body and connected to one ends of the first and second coil portions, and third and fourth external electrodes disposed along an inner surface of the second recess and one surface of the body and connected to the other ends of the first and second coil portions.
    Type: Application
    Filed: September 13, 2019
    Publication date: December 3, 2020
    Inventors: No Il PARK, Seung Mo LIM, Tai Yon CHO, In Young KANG, Byeong Cheol MOON, Doo Ho PARK, Jeong Hoon RYOU, Tae Jun CHOI
  • Publication number: 20200350115
    Abstract: A coil electronic component includes a body having one surface and the other surface, opposing each other, and a plurality of wall surfaces respectively connecting the one surface and the other surface of the body, first and second recesses, respectively formed in both end surfaces of the body opposing each other among the plurality of wall surfaces of the body, extending to the one surface of the body, a wound coil, embedded in the body, including first and second lead-out portions, a first external electrode disposed along an internal wall of the first recess and the one surface of the body and connected to the first lead-out portion, and a second external electrode disposed along an internal wall of the second recess and the one surface of the body and connected to the first lead-out portion. The first and second external electrodes are spaced apart from each other.
    Type: Application
    Filed: August 2, 2019
    Publication date: November 5, 2020
    Inventors: In Young KANG, Byeong Cheol MOON, Doo Ho PARK, Tai Yon CHO, No Il PARK, Seung Mo LIM, Tae Jun CHOI, Jeong Hoon RYOU
  • Publication number: 20200303113
    Abstract: A coil component may include a body having one surface and the other surface facing each other; a wound coil embedded in the body; a first lead frame and a second lead frame, embedded in the body and each having one surface exposed to the one surface of the body to be spaced apart from each other; and a connection portion connecting at least one of the first and second lead frames and at least one end portion of the wound coil.
    Type: Application
    Filed: August 5, 2019
    Publication date: September 24, 2020
    Inventors: Ju Hwan YANG, Tae Jun CHOI, Byung Soo KANG, Woo Chul SHIN, Byeong Cheol MOON
  • Publication number: 20200278556
    Abstract: Disclosed herein is a head-mounted display device. The head-mounted display device comprises: a display unit disposed to face a user's face when the user wears the device and configured to provide the user with virtual reality images via an image output means disposed on one side thereof; a first biometric data acquiring unit disposed at the display unit and configured to capture the user's face accommodated in the display unit when the user wears the device to acquire first biometric data; and a second biometric data acquiring unit disposed at the display unit and configured to come in contact with the user's skin when the user wears the device to acquire second biometric data.
    Type: Application
    Filed: July 19, 2018
    Publication date: September 3, 2020
    Inventors: Yong Wook Chae, Hong Gu Lee, Tae Jun Choi, Ki Bum Choi
  • Publication number: 20200219651
    Abstract: A coil component includes a molded portion having one surface and another surface opposing each other, and a wound coil disposed on the one surface of the molded portion and including an innermost turn, at least one intermediate turn, and an outermost turn disposed outwardly of a central portion of the one surface of the molded portion. A cover portion is disposed to face the one surface of the molded portion and to cover the wound coil, and first and second external electrodes are connected to the wound coil and arranged to be spaced apart from each other on the other surface of the molded portion. A thickness of one region of the cover portion disposed on the innermost turn is thicker than a thickness of another region of the cover portion disposed on the outermost turn.
    Type: Application
    Filed: September 17, 2019
    Publication date: July 9, 2020
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byung Soo Kang, Byeong Cheol Moon, Tae Jun Choi, Ju Hwan Yang
  • Patent number: 10692648
    Abstract: A magnetic field shielding structure includes a magnetic layer and a resonance reactive shielding circuit including a capacitor and a conductor connected to the capacitor and having a loop form. At least a portion of the magnetic layer overlaps an area surrounded by the conductor in a thickness direction of the magnetic layer.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 23, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Seung Hee Oh, Doo Ho Park, Tae Jun Choi, Sung Nam Cho, Chang Hak Choi, Jung Young Cho
  • Publication number: 20200118729
    Abstract: A coil component includes a body having one surface and another surface opposing each other, opposing end surfaces each connecting the one surface and the other surface to each other, and opposing side surfaces each connecting the end surfaces to each other. An internal insulating layer is embedded in the body, and a coil portion is disposed on at least one surface of the internal insulating layer and includes the first and second lead-out portions. The body has a recess disposed in each end surface of the body to expose the first and second lead-out portions. First and second external electrodes each include a connection portion disposed in the recess to be connected to a respective one of the first and second lead-out portions, and each include a pad portion disposed on the one surface of the body. A filling portion fills the recess and covers the connection portion.
    Type: Application
    Filed: August 21, 2019
    Publication date: April 16, 2020
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Mo LIM, Byeong Cheol MOON, Dong Sik YOO, Doo Ho PARK, Tae Jun CHOI, Jeong Hoon RYOU, No Il PARK, Tai Yon CHO
  • Publication number: 20200082975
    Abstract: A coil component includes a body including a magnetic metal powder, and a coil portion in the body. First and second external electrodes are disposed on one surface of the body and connected to the coil portion, and a third external electrode includes a pad portion disposed on the one surface of the body and a side surface portion disposed on at least one side surface of the body. An insulating layer covers surfaces of the body other than the one surface and has an opening exposing the side surface portion of the third external electrode. A shielding layer is disposed on the insulating layer and is connected to the side surface portion of the third external electrode through the opening.
    Type: Application
    Filed: February 27, 2019
    Publication date: March 12, 2020
    Inventors: Ju Hwan YANG, Byung Soo KANG, Tae Jun CHOI, Byeong Cheol MOON
  • Publication number: 20200035404
    Abstract: A coil component includes a body and a coil portion disposed in the body and including first and second lead-out portions. Recesses are disposed along edges of one surface of the body, and expose the first and second lead-out portions to internal walls and lower surfaces of the recesses. First and second external electrodes are disposed in the recesses, and are connected to the first and second lead-out portions. A third external electrode is disposed in the recesses, and is connected to a connection electrode disposed on side surfaces of the body and on another surface of the body opposite to the one surface. An external insulating layer covers the connection electrode, and has an opening exposing at least a portion of the connection electrode. A shielding layers is disposed on the external insulating layer and in the opening and connects to the connection electrode.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 30, 2020
    Inventors: Seung Mo LIM, Byeong Cheol MOON, Tai Yon CHO, Tae Jun CHOI, Jeong Hoon RYOU, Dong Sik YOO, No Il PARK, Seung Hee OH