Patents by Inventor Seong-Jin Choi

Seong-Jin 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: 20240128658
    Abstract: A dual polarization antenna is disclosed in at least one embodiment of the present disclosure, including a base substrate, a power feeding unit supported on the base substrate, and a radiating plate supported on the power feeding unit, wherein the first feeding substrate includes a first insulating substrate supported on the base substrate, and a first feed line attached to the first insulating substrate and configured to supply a first reference phase signal to a first point on the radiating plate and to supply to a second point on the radiating plate, a first reverse phase signal having a reverse phase relative to the first reference phase signal, and wherein the second feeding substrate includes a second insulating substrate supported on the base substrate, and a second feed line attached to the first insulating substrate and configured to supply a second reference phase signal to a third point on the radiating plate and to supply to a fourth point on the radiating plate, a second reverse phase signal havi
    Type: Application
    Filed: December 15, 2023
    Publication date: April 18, 2024
    Applicant: KMW INC.
    Inventors: Seong Man KANG, Oh Seog CHOI, Hun Jung JUNG, Gyo Jin JO, Su Yong LEE
  • Patent number: 11958755
    Abstract: Provided are a barium titanate powder having spherical shape fine particles which have an average particle diameter (D50) in a range of about 140-270 nm, a tetragonal structure having a markedly improved tetragonality (c/a) in a range of 1.007-1.01 in contrast to the conventional composition, and at the same time, a markedly improved crystallinity in a range of 93-96%, thereby showing improved dielectric properties, and a manufacturing method thereof.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: April 16, 2024
    Assignee: Korea Inst. of Ceramic Engineering & Technology
    Inventors: Moon Hee Choi, Hyeon Jin Jung, Seong Hyeok Choi
  • Patent number: 11959886
    Abstract: The present invention relates to a scanner having a flexible probe which is an apparatus capable of being utilized for an inspection on a weld zone of a general ferrite material and a stainless material and allowing an inspection to be performed on a fitting weld zone where it is difficult for a general phased array ultrasonic testing (PAUT) probe to approach.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: April 16, 2024
    Assignees: Foundation for Research and Business, Seoul National University of Science and Technology, Korea Inspection Eng.Co., Ltd
    Inventors: Ik Keun Park, Yu Min Choi, Seong Jin Lim, In Gon Jung, Hye Jin Park
  • Patent number: 11950476
    Abstract: A display device includes a substrate; a transistor disposed on the substrate; a first insulating layer disposed on the transistor; and a first pixel electrode and a second pixel electrode disposed on the first insulating layer to be adjacent to each other. The first insulating layer includes a first opening between the first pixel electrode and the second pixel electrode.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: April 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Ho Choi, Chun Gi You, Seong Kweon Heo, Eun Young You, Hyun Jin Hong
  • Publication number: 20240105963
    Abstract: A method for manufacturing a gas diffusion layer for a fuel cell wherein carbon nanotubes are impregnated into Korean paper, thereby enhancing electroconductivity, and a gas diffusion layer manufactured thereby. The method for manufacturing a gas diffusion layer for a fuel cell which is to manufacture a gas diffusion layer as a constituent member of a unit cell in a fuel cell, includes a support preparation step of preparing a support with Korean paper; a dispersion preparation step of dispersing a carbon substance in a solvent to form a dispersion, a coating step of coating the support with the dispersion, and a thermal treatment step of thermally treating the dispersion-coated support to fix the carbon substance to the support.
    Type: Application
    Filed: March 6, 2023
    Publication date: March 28, 2024
    Inventors: Seung Tak Noh, Ji Han Lee, In Seok Lee, Jae Man Park, Won Jong Choi, Choong Hee Kim, Seong Hwang Kim, Jong Hoon Lee, Soo Jin Park, Seul Yi Lee
  • Publication number: 20240103247
    Abstract: A lens assembly includes a lens barrel, a plurality of lenses arranged inside the lens barrel along an optical axis, and a cover member fixed to an end of the lens barrel on a subject side and fixing a last lens of the plurality of lenses on the subject side, wherein outer diameters of the plurality of lenses decrease from the subject side to an image side, and an outer diameter of the lens barrel is constant or smaller from the subject side to the image side.
    Type: Application
    Filed: July 20, 2023
    Publication date: March 28, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seong Jin CHOI, Young Suk KANG, Yong Joo JO
  • Patent number: 11934950
    Abstract: An apparatus for embedding a sentence feature vector according to an embodiment includes a sentence acquisitor configured to acquire a first sentence and a second sentence, each including one or more words; a vector extractor configured to extract a first feature vector corresponding to the first sentence and a second feature vector corresponding to the second sentence by independently inputting each of the first sentence and the second sentence into a feature extraction network; and a vector compressor configured to compress the first feature vector and the second feature vector into a first compressed vector and a second compressed vector, respectively, by independently inputting each of the first feature vector and the second feature vector into a convolutional neural network (CNN)-based vector compression network.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: March 19, 2024
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Seong Ho Joe, Young June Gwon, Seung Jai Min, Ju Dong Kim, Bong Kyu Hwang, Jae Woong Yun, Hyun Jae Lee, Hyun Jin Choi
  • Patent number: 11305091
    Abstract: Disclosed are an apparatus and a system for managing circadian rhythm. The apparatus includes an illuminance measuring portion which measures a bio illuminance value of external light using a circadian lambda filter which passes the external light along according to a circadian rhythm sensitivity curve and a visual lambda filter which passes the external light along according to a visual sensitivity curve, a controller which outputs a control signal for reinforcing a user's circadian rhythm on the basis of the bio illuminance value, and a circadian rhythm reinforcing portion which emits light of a circadian wavelength band toward the user according to the control signal.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: April 19, 2022
    Assignee: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Hyun Sun Mo, Young Rag Do, Dae Jeong Kim, Dae Hwan Kim, Sung Yeon Jang, In Hwan Jung, Dong Myung Kim, Seong Jin Choi, Sanggyu Yim, Hyung Min Kim, Sun Woong Choi, Gu Min Jeong, Seung Min Lee
  • Publication number: 20200230346
    Abstract: Disclosed are an apparatus and a system for managing circadian rhythm. The apparatus includes an illuminance measuring portion which measures a bio illuminance value of external light using a circadian lambda filter which passes the external light along according to a circadian rhythm sensitivity curve and a visual lambda filter which passes the external light along according to a visual sensitivity curve, a controller which outputs a control signal for reinforcing a user's circadian rhythm on the basis of the bio illuminance value, and a circadian rhythm reinforcing portion which emits light of a circadian wavelength band toward the user according to the control signal.
    Type: Application
    Filed: July 29, 2019
    Publication date: July 23, 2020
    Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Hyun Sun Mo, Young Rag Do, Dae Jeong Kim, Dae Hwan Kim, Sung Yeon Jang, In Hwan Jung, Dong Myung Kim, Seong Jin Choi, Sanggyu Yim, Hyung Min Kim, Sun Woong Choi, Gu Min Jeong, Seung Min Lee
  • Publication number: 20160247214
    Abstract: Disclosed herein is a system and method for providing ‘response information’, which is information on usage comments, reviews, or evaluations written by existing users, so that a specific user who requests product information may easily and accurately know it in a shorter time, when the product information is provided through a network according to the request or search by the specific user, where the system includes a pattern extraction unit that extracts a reputation pattern including an attribute word corresponding to a specific product by analyzing one or more pieces of existing user's response information for the product for which product information is provided through a network, a summary information extracting unit that extracts summary information on the response information based on the reputation pattern, and a summary information providing unit providing the extracted summary information to be displayed for the user to read to a client.
    Type: Application
    Filed: September 24, 2015
    Publication date: August 25, 2016
    Inventors: Tae Il Kim, Hyun Jung Lee, Chiaki Kodama, Dong Hyun Kim, Jun Hyuk Shim, Jin Woo Lee, Cheol Gyun Lee, Jae Kyun Yoo, Jae Bok Yi, Seong Jin Choi
  • Patent number: 8351051
    Abstract: A system and a method of measuring irregularity of a glass substrate using only a reflection light reflected by an upper surface of reflection lights reflected by the upper surface and a lower surface of the glass substrate are disclosed. The system includes a light source section configured to output a first light to the glass substrate and a screen.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: January 8, 2013
    Assignee: Semisysco Co., Ltd.
    Inventors: Soon-Jong Lee, Bong-Joo Woo, Byoung-Chan Park, Seong-Jin Choi, Jae-Hoon Chung
  • Publication number: 20120133952
    Abstract: A system and a method of measuring irregularity of a glass substrate using only a reflection light reflected by an upper surface of reflection lights reflected by the upper surface and a lower surface of the glass substrate are disclosed. The system includes a light source section configured to output a first light to the glass substrate and a screen.
    Type: Application
    Filed: April 26, 2011
    Publication date: May 31, 2012
    Applicant: SEMISYSCO CO., LTD.
    Inventors: Soon-Jong Lee, Bong-Joo Woo, Byoung-Chan Park, Seong-Jin Choi, Jae-Hoon Chung
  • Publication number: 20110142329
    Abstract: A method and a device for converting an image are disclosed. According to an embodiment of the present invention, the method for converting a two-dimensional image to a three-dimensional image by an image conversion device can include: receiving and setting overall depth information for an original image; classifying the original image into partial objects and setting three-dimensional information for each of the partial objects; generating a first image by moving the original image by use of the three-dimensional information; receiving and setting a zero point for the original image; generating a second image by moving the original image by use of the zero point; and generating a three-dimensional image by combining the first image and the second image. Accordingly, a still image can be converted to a three-dimensional image.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 16, 2011
    Inventors: Young Seok Sung, Phil Moon Seong, Seong Jin Choi, In Chul Na, Byung Sun Choi
  • Patent number: 7043238
    Abstract: Disclosed is a CDMA terminal for providing a CDMA service to a global system for mobile communications (GSM) service subscriber in a CDMA service area which comprises: a subscriber identity module (SIM) cardholder for installing or uninstalling a SIM card of a GSM service subscriber, wherein when a SIM card of the GSM service subscriber is installed in the SIM cardholder in the CDMA service area, specific data are transmitted using a CDMA message in the case of authenticating the GSM service subscriber using information on the GSM service subscriber stored in the SIM card, and when the authentication of the GSM service subscriber is normally completed, the CDMA terminal is used for the GSM service subscriber as a roaming service terminal in the CDMA service area. According to the present invention, the GSM service subscriber can use his SIM card and number in the CDMA service area.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: May 9, 2006
    Assignee: Ktfreetel Co., Ltd.
    Inventors: Byung-Ik Ahn, Chan-Ho Yun, Yuon-Pil Jeung, Kwang-Wouk Lee, Cheol-Hyun Kang, Seong-Jin Choi
  • Patent number: 6770313
    Abstract: A method and apparatus for hygienically preparing dried peppers by continuously sterilizing and drying fresh peppers are provided. The method includes: screening fresh peppers, removing the stems of the peppers, and aging the peppers; washing the peppers to remove foreign materials and pesticide residue from the surfaces of the peppers; optionally sterilizing the surfaces of the washed peppers using a chemical sterilant solution; cutting and separating seeds from the washed or sterilized peppers; sterilizing the cut peppers using a chemical sterilant solution and/or high-temperature and high-pressure steam; drying the sterilized peppers by hot air or freeze-drying; and grinding the dried peppers into a product. The preparation method includes repeated sterilization and drying processes so that a sanitary problem common to dried peppers can be solved.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: August 3, 2004
    Assignee: Nongshim, Co., Ltd.
    Inventors: Sun-taek Shim, Kyu-sang Park, Jae-hoon Kim, Jae-won Yoon, Seong-jin Choi, Nam-chul Cho, Jun-hwan Yang
  • Patent number: 6681111
    Abstract: Disclosed is a roaming service system in a CDMA service area for GSM service subscribers, which comprises a CDMA system comprising a CDMA HLR storing information on subscribers' locations and services, a CDMA MSC connected to the CDMA HLR and accessing calls, and a CDMA terminal wirelessly connected to the CDMA MSC and capable of having a SIM card removably installed therein; a GSM system comprising a GSM HLR storing information on the subscribers' locations and services, a GSM MSC connected to the GSM HLR and accessing calls, an authentication center (AuC) connected to a GSM network and authenticating terminals, and a GSM terminal wirelessly connected to the GSM MSC; and an IRGS connected between the CDMA system and the GSM system and converting signals to execute signal communications between the systems, and when a subscriber of a service provided by the GSM system moves to an area in which the subscriber can use the service provided by the CDMA system and installs the subscriber's SIM card
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: January 20, 2004
    Assignee: Korea Telecom Freetel Co., Ltd.
    Inventors: Byung-Ik Ahn, Chan-Ho Yun, Yuon-Pil Jeung, Kwang-Wuk Lee, Cheol-Hyun Kang, Seong-Jin Choi
  • Publication number: 20030148791
    Abstract: Disclosed is a CDMA terminal for providing a CDMA service to a global system for mobile communications (GSM) service subscriber in a CDMA service area which comprises: a subscriber identity module (SIM) cardholder for installing or uninstalling a SIM card of a GSM service subscriber, wherein when a SIM card of the GSM service subscriber is installed in the SIM cardholder in the CDMA service area, specific data are transmitted using a CDMA message in the case of authenticating the GSM service subscriber using information on the GSM service subscriber stored in the SIM card, and when the authentication of the GSM service subscriber is normally completed, the CDMA terminal is used for the GSM service subscriber as a roaming service terminal in the CDMA service area. According to the present invention, the GSM service subscriber can use his SIM card and number in the CDMA service area.
    Type: Application
    Filed: March 25, 2002
    Publication date: August 7, 2003
    Inventors: Byung-Ik Ahn, Chan-Ho Yun, Yuon-Pil Jeung, Kwang-Wouk Lee, Cheol-Hyun Kang, Seong-Jin Choi
  • Publication number: 20020086099
    Abstract: A method and apparatus for hygienically preparing dried peppers by continuously sterilizing and drying fresh peppers are provided. The method includes: screening fresh peppers, removing the stems of the peppers, and aging the peppers; washing the peppers to remove foreign materials and pesticide residue from the surfaces of the peppers; optionally sterilizing the surfaces of the washed peppers using a chemical sterilant solution; cutting and separating seeds from the washed or sterilized peppers; sterilizing the cut peppers using a chemical sterilant solution and/or high-temperature and high-pressure steam; drying the sterilized peppers by hot air or freeze-drying; and grinding the dried peppers into a product. The preparation method includes repeated sterilization and drying processes so that a sanitary problem common to dried peppers can be solved.
    Type: Application
    Filed: June 29, 2001
    Publication date: July 4, 2002
    Applicant: Nongshim Co., Ltd.
    Inventors: Sun-Taek Shim, Kyu-Sang Park, Jae-Hoon Kim, Jae-Won Yoon, Seong-Jin Choi, Nam-Chul Cho, Jun-Hwan Yang
  • Publication number: 20020061745
    Abstract: Disclosed is a roaming service system in a CDMA service area for GSM service subscribers, which comprises a CDMA system comprising a CDMA HLR storing information on subscribers' locations and services, a CDMA MSC connected to the CDMA HLR and accessing calls, and a CDMA terminal wirelessly connected to the CDMA MSC and capable of having a SIM card removably installed therein; a GSM system comprising a GSM HLR storing information on the subscribers' locations and services, a GSM MSC connected to the GSM HLR and accessing calls, an authentication center (AuC) connected to a GSM network and authenticating terminals, and a GSM terminal wirelessly connected to the GSM MSC; and an IRGS connected between the CDMA system and the GSM system and converting signals to execute signal communications between the systems, and when a subscriber of a service provided by the GSM system moves to an area in which the subscriber can use the service provided by the CDMA system and installs the subscriber's SIM card in the CDMA ter
    Type: Application
    Filed: April 16, 2001
    Publication date: May 23, 2002
    Inventors: Byung-Ik Ahn, Chan-Ho Yun, Yuon-Pil Jeung, Kwang-Wuk Lee, Cheol-Hyun Kang, Seong-Jin Choi