Patents by Inventor In-duk Hwang

In-duk Hwang 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: 20240112256
    Abstract: The present technology relates to a financial service provision system and a simple payment company server therefor.
    Type: Application
    Filed: January 21, 2022
    Publication date: April 4, 2024
    Applicant: KAKAOPAY CORP.
    Inventors: Seokgeun Park, Jaehee Kim, Duk Cho, Kyuhyen Hwang, Soohyun Kim, Sangjoon Yoon, Seonghwan Lee
  • Publication number: 20240099633
    Abstract: An electrocardiogram measuring device includes: a first second electrodes configured to receive a first and second electrocardiogram voltages of a first and second body parts in contact therewith, respectively; two amplifiers configured to receive the first and second electrocardiogram voltages from the first and second electrodes; a third electrode configured to contact a third body part and transfer a third electrocardiogram voltage of the third body part; an electrode driver configured to receive the third electrocardiogram voltage and output a driving voltage; a fourth electrode placed adjacent to one of the three electrodes and configured to receive and transmit the output of the electrode driver to one of the three body parts in contact therewith; an AD converter connected to an output terminal of each of the two amplifiers; a microcontroller configured to receive the two digital signals; and a communication means configured to transmit the two digital signals.
    Type: Application
    Filed: October 16, 2023
    Publication date: March 28, 2024
    Inventor: In-Duk HWANG
  • Patent number: 11931156
    Abstract: The electrocardiogram measurement apparatus includes: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the electrode driving unit; an A/D converter connected to an output terminal of each of the two amplifiers and converting analog signals into digital signals; a microcontroller for receiving the digital signals from the A/D converter; and a communication means for transmitting the digital signal, wherein: the microcontroller is supplied with power from a battery; the microcontroller controls the A/D converter and the communication means; and each of the two amplifiers amplifies one electrocardiogram signal so as to simultaneously measure two electrocardiogram signals.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: March 19, 2024
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Publication number: 20240065606
    Abstract: An electrocardiogram measuring device includes: a first electrode and a second electrode to receive a first and second electrocardiogram voltages of a first and second body parts in contact therewith, respectively; two amplifiers to receive the first and second electrocardiogram voltages from the first and second electrodes; a third electrode to transfer a third electrocardiogram voltage of the third body part; an electrode driver to receive the third electrocardiogram voltage and output a driving voltage; a fourth electrode placed adjacent to one of the three electrodes and configured to receive and transmit the output of the electrode driver to one of the three body parts in contact therewith; wherein each of the two amplifiers simultaneously receives and amplifies one electrocardiogram voltage.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 29, 2024
    Inventor: In-Duk HWANG
  • Publication number: 20240000363
    Abstract: The electrocardiogram measurement apparatus includes: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the electrode driving unit; an A/D converter connected to an output terminal of each of the two amplifiers and converting analog signals into digital signals; a microcontroller for receiving the digital signals from the A/D converter; and a communication means for transmitting the digital signal, wherein: the microcontroller is supplied with power from a battery; the microcontroller controls the A/D converter and the communication means; and each of the two amplifiers amplifies one electrocardiogram signal so as to simultaneously measure two electrocardiogram signals.
    Type: Application
    Filed: January 17, 2023
    Publication date: January 4, 2024
    Applicant: HEXACHECK INC.
    Inventor: In-Duk HWANG
  • Publication number: 20230225662
    Abstract: The present invention relates to an electrocardiogram measurement apparatus (measurement sensor) which can be used in combination with a smartphone by an individual. The electrocardiogram measurement apparatus according to the present invention comprises: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the electrode driving unit; an A/D converter connected to an output terminal of each of the two amplifiers and converting analog signals into digital signals; a microcontroller for receiving the digital signals from the A/D converter; and a communication means for transmitting the digital signal, wherein: the microcontroller is supplied with power from a battery; the microcontroller controls the A/D converter and the communication means; and each of the two amplifiers amplifies one electrocardiogram signal so as to simultaneously measure two electrocardiogram signals.
    Type: Application
    Filed: January 13, 2023
    Publication date: July 20, 2023
    Applicant: HEXACHECK INC.
    Inventor: In-Duk HWANG
  • Publication number: 20230148934
    Abstract: The present invention relates to an electrocardiogram measurement apparatus (measurement sensor) which can be used in combination with a smartphone by an individual. The electrocardiogram measurement apparatus according to the present invention comprises: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the electrode driving unit; an A/D converter connected to an output terminal of each of the two amplifiers and converting analog signals into digital signals; a microcontroller for receiving the digital signals from the A/D converter; and a communication means for transmitting the digital signal, wherein: the microcontroller is supplied with power from a battery; the microcontroller controls the A/D converter and the communication means; and each of the two amplifiers amplifies one electrocardiogram signal so as to simultaneously measure two electrocardiogram signals.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Applicant: HEXACHECK INC.
    Inventor: In-Duk HWANG
  • Patent number: 11642066
    Abstract: The electrocardiogram measurement apparatus includes: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the electrode driving unit; an A/D converter connected to an output terminal of each of the two amplifiers and converting analog signals into digital signals; a microcontroller for receiving the digital signals from the A/D converter; and a communication means for transmitting the digital signal, wherein: the microcontroller is supplied with power from a battery; the microcontroller controls the A/D converter and the communication means; and each of the two amplifiers amplifies one electrocardiogram signal so as to simultaneously measure two electrocardiogram signals.
    Type: Grant
    Filed: July 2, 2022
    Date of Patent: May 9, 2023
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: 11589793
    Abstract: The present invention relates to an electrocardiogram measurement apparatus (measurement sensor) which can be used in combination with a smartphone by an individual. The electrocardiogram measurement apparatus according to the present invention comprises: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the electrode driving unit; an A/D converter connected to an output terminal of each of the two amplifiers and converting analog signals into digital signals; a microcontroller for receiving the digital signals from the A/D converter; and a communication means for transmitting the digital signal, wherein: the microcontroller is supplied with power from a battery; the microcontroller controls the A/D converter and the communication means; and each of the two amplifiers amplifies one electrocardiogram signal so as to simultaneously measure two electrocardiogram signals.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 28, 2023
    Assignee: WELLBEINGSOFT INC.
    Inventor: In-Duk Hwang
  • Publication number: 20220338781
    Abstract: The electrocardiogram measurement apparatus includes: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the electrode driving unit; an A/D converter connected to an output terminal of each of the two amplifiers and converting analog signals into digital signals; a microcontroller for receiving the digital signals from the A/D converter; and a communication means for transmitting the digital signal, wherein: the microcontroller is supplied with power from a battery; the microcontroller controls the A/D converter and the communication means; and each of the two amplifiers amplifies one electrocardiogram signal so as to simultaneously measure two electrocardiogram signals.
    Type: Application
    Filed: July 2, 2022
    Publication date: October 27, 2022
    Applicant: HEXACHECK INC.
    Inventor: In-Duk HWANG
  • Patent number: D921901
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 8, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D927693
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 10, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D928325
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 17, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D928963
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: August 24, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D930164
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: September 7, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D930165
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: September 7, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D930837
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: September 14, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D933235
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: October 12, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D933243
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 12, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang
  • Patent number: D933838
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 19, 2021
    Assignee: HEXACHECK INC.
    Inventor: In-Duk Hwang