Patents by Inventor Kang-Wook Lee

Kang-Wook Lee 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).

  • Patent number: 11259712
    Abstract: Embodiments of the invention are directed to a photoplethysmogram (PPG) structure that includes a wearable component and a network of PPG sensors physically coupled to the wearable component. Each PPG sensor of the network includes a housing, a first light source and a light detector. The first light source is positioned in or on the housing such that, when the housing is positioned on a surface, the housing positions an illuminating surface of the first light source at a predetermined first-light-source angle with respect to the surface.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 1, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kang-Wook Lee, Rajeev Narayanan
  • Publication number: 20210398271
    Abstract: An inspection system for a vehicle underbody in an in-line process includes: a vehicle recognition unit for acquiring a vehicle ID by recognizing a vehicle entering an inspection process; a vision system that photographs the vehicle underbody through a plurality of cameras disposed under a vehicle moving direction (Y-axis) and disposed at vertical and diagonal angles along a width direction (X-axis) of the vehicle; and an inspection server that detects assembly defects of a component by performing at least one of a first vision inspection that matches an object image for each component through a rule-based algorithm or a secondary deep-learning inspection through a deep-learning engine by acquiring a vehicle underbody image photographed by operating the vision system with setting information suitable for a vehicle type and a specification according to the vehicle ID.
    Type: Application
    Filed: December 1, 2020
    Publication date: December 23, 2021
    Inventor: Kang Wook Lee
  • Publication number: 20210354339
    Abstract: One aspect of the present disclosure relates to an apparatus for manufacturing a skin care pack. According to an aspect of the present invention, the apparatus for manufacturing a skin care pack may be provided, the apparatus containing: a housing for providing a working space for forming a skin care pack; a film moving module provided to be movable in one direction within the working space, and having a base on which a film is mounted; a molding machine provided to be movable within the working space in two directions perpendicular to the one direction, and including at least one nozzle module for discharging hydrogel to the base; and a controller for controlling movement of the film moving module and the nozzle module, and controlling discharge of the hydrogel from the molding machine.
    Type: Application
    Filed: October 18, 2019
    Publication date: November 18, 2021
    Applicants: AMOREPACIFIC CORPORATION, LINCSOLUTION CO., LTD.
    Inventors: Sung Won YI, Ji Hoon KIM, Jae Min LIM, Jeong Eun SEO, Yang Gyu CHOI, Keun Sik CHOI, Kang Wook LEE
  • Publication number: 20210113102
    Abstract: Techniques for determining pulse transit time (PIT) and blood pressure measurements based on stethoscope data are provided. In one example, a system comprises a stethoscope component that monitors a heart and generates stethoscope data representative of a sound wave generated by the heart. The system can further comprise an analysis component that receives the stethoscope data and receives, from a photoplethysmography (PPG) component that monitors an extremity, PPG data representative of a pulse wave at the extremity. The analysis component can determine, based on the stethoscope data, a first time corresponding to closure of a tricuspid valve of the heart and can determine a PT as a function of the first time and a second time corresponding to the pulse wave at the extremity that is determined based on the PPG data. Blood pressure measurements can be obtained from algorithms with the inputs of PIT or times determined based on the PPG data.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Inventor: Kang-Wook Lee
  • Patent number: 10939830
    Abstract: Techniques for determining pulse transit time (PTT) and blood pressure measurements based on stethoscope data are provided. In one example, a system comprises a stethoscope component that monitors a heart and generates stethoscope data representative of a sound wave generated by the heart. The system can further comprise an analysis component that receives the stethoscope data and receives, from a photoplethysmography (PPG) component that monitors an extremity, PPG data representative of a pulse wave at the extremity. The analysis component can determine, based on the stethoscope data, a first time corresponding to closure of a tricuspid valve of the heart and can determine a PTT as a function of the first time and a second time corresponding to the pulse wave at the extremity that is determined based on the PPG data. Blood pressure measurements can be obtained from algorithms with the inputs of PTT or times determined based on the PPG data.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: March 9, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Kang-Wook Lee
  • Patent number: 10932676
    Abstract: Techniques for determining pulse transit time (PTT) and blood pressure measurements based on stethoscope data are provided. In one example, a system comprises a stethoscope component that monitors a heart and generates stethoscope data representative of a sound wave generated by the heart. The system can further comprise an analysis component that receives the stethoscope data and receives, from a photoplethysmography (PPG) component that monitors an extremity, PPG data representative of a pulse wave at the extremity. The analysis component can determine, based on the stethoscope data, a first time corresponding to closure of a tricuspid valve of the heart and can determine a PTT as a function of the first time and a second time corresponding to the pulse wave at the extremity that is determined based on the PPG data. Blood pressure measurements can be obtained from algorithms with the inputs of PTT or times determined based on the PPG data.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: March 2, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Kang-Wook Lee
  • Patent number: 10876777
    Abstract: An air conditioning device includes a vapor injection cycle in which an operating speed of a compressor is adjusted to improve efficiency, and a method for controlling the device. The air conditioning device includes an inner heat-exchanger for exchanging heat between a first portion of refrigerant passing through a condenser and a second portion of the refrigerant branched from the first refrigerant, and an injection channel through which the second portion of the refrigerant is injected into the compressor. The inner heat exchanger includes an outer tube and an inner tube disposed inside the outer tube. The first portion of the refrigerant flows into the inner tube, while the second portion of the refrigerant flows into the outer tube. Thus, when a variation of air-conditioning load is small and an injection super-heating temperature is low, the device enables reduction of the compressor rotation speed to ensure high injection super-heating temperature.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 29, 2020
    Assignee: LG Electronics Inc.
    Inventors: Kang Wook Lee, Soojin Kang, Hansaem Park, Ho Jong Jeong
  • Patent number: 10687760
    Abstract: A wearable patch system includes an electrocardiogram (ECG) sensor having electrodes configured to contact a subject. An electronic stethoscope has a diaphragm structure responsive to sounds from the subject. The ECG sensor and the electronic stethoscope are co-located to measure respective parameters concurrently from a same position. A housing is configured to support the diaphragm structure and the electrodes. The housing includes a mechanical interface configured to mount on the subject. A communications circuit is disposed on or in the housing to communicate with a remote component.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: June 23, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Kang-Wook Lee
  • Publication number: 20200146569
    Abstract: Embodiments of the invention are directed to a photoplethysmogram (PPG) structure that includes a wearable component and a network of PPG sensors physically coupled to the wearable component. Each PPG sensor of the network includes a housing, a first light source and a light detector. The first light source is positioned in or on the housing such that, when the housing is positioned on a surface, the housing positions an illuminating surface of the first light source at a predetermined first-light-source angle with respect to the surface.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 14, 2020
    Inventors: Kang-Wook Lee, Rajeev Narayanan
  • Patent number: 10636763
    Abstract: An approach to provide an electronic assembly process that includes receiving at least one electronic assembly after a solder reflow process using a Sn-containing solder and a water-soluble flux. The approach includes baking the at least one electronic assembly in an oxygen containing environment and, then cleaning the at least one electronic assembly in an aqueous cleaning process.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 28, 2020
    Assignee: International Business Machines Corporation
    Inventors: Charles C. Bureau, Eric Duchesne, Kang-Wook Lee, Isabelle Paquin, Dragoljub Veljanovic
  • Patent number: 10621885
    Abstract: Systems and methods for monitoring body mounted/implanted sensors in combination with environmental sensors and sensors attached to person's medical/sports equipment. Data indicating a plurality of measured quantities associated with movement of a person at a time point is received. Each measured quantity within the plurality of measured quantities having been determined by a respective sensor attached to a respective location on the person or the person's environment or the person's medical/sports equipment. At least one characteristic of the person associated with the time point is determined based on analyzing the plurality of measured quantities. The at least one characteristic is stored. Recommendations for the person are determined based upon the characteristics, and a report comprising the recommendations is provided.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 14, 2020
    Assignee: International Business Machines Corporation
    Inventors: John U. Knickerbocker, Shriya Kumar, Kang-Wook Lee, Minhua Lu
  • Patent number: 10612501
    Abstract: The present invention relates to a vehicular resonator comprising: an outer pipe that constitutes the exterior thereof; an inner pipe, a part of which is inserted into the outer pipe, and which has a slit formed therein as an air movement passage; a movable pipe configured to be able to move inside a resonation chamber formed between the outer pipe and the inner pipe; and an elastic body having one side thereof coupled to the inner pipe and the other side thereof coupled to the movable pipe, thereby providing the movable pipe with an elastic force such that the movable pipe can move.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: April 7, 2020
    Assignee: COOPER STANDARD AUTOMOTIVE AND INDUSTRIAL INC.
    Inventors: Jung Uk Lee, Kang Wook Lee
  • Patent number: 10531797
    Abstract: An apparatus includes one or more memories storing computer readable code and processor(s). The processor(s), in response to loading and executing the computer readable code, cause the apparatus to perform operations including receiving electrocardiogram data from an electrocardiogram sensor. The electrocardiogram data includes data from an electrocardiogram from a person. The operations also include receiving pulse wave data from one or more pulse wave pressure sensors. The pulse wave data includes data from one or more pulse waves from the person. The operations further include determining blood pressure using the electrocardiogram data or the pulse wave data from the chest and the pulse wave data from the wrist or finger, and outputting an indication of the blood pressure. Another apparatus uses pulse wave data from two pulse wave sensors (e.g., pulse wave pressure sensor(s) and/or PPG sensor(s)) and blood pressure determinations are made using these pulse wave data.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: January 14, 2020
    Assignee: International Business Machines Corporation
    Inventors: John U. Knickerbocker, Hyung-Min Lee, Kang-Wook Lee
  • Patent number: 10485430
    Abstract: An apparatus includes a wearable sensor structure that includes multiple individual sensor units placed in a row. Each individual sensor unit includes a first portion to contact a surface of skin under which arteries and/or veins are to be located, and a second portion that contacts the first portion and is configured to have a capacitance. The first and second portions are configured to create a capacitance change in response to a squeezing or bending between the first portion and a fixed part of the second portion caused by a pulse pressure and release of the pulse pressure. The apparatus includes circuitry configured to measure waveforms for the individual sensor units. Each waveform captures the capacitance change for its corresponding individual sensor unit. The apparatus includes a wireless interface configured to transmit the waveforms. A computing system is also disclosed that analyzes the waveforms and can provide alerts based thereon.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: November 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Kang-Wook Lee, Robert S. Olyha, Jr.
  • Patent number: 10483240
    Abstract: A semiconductor device includes a metal column that extends in a stretching direction; a polymer layer that surrounds the metal column from a direction crossing the stretching direction; and a guide that surrounds the polymer layer in the crossing direction so as to be spaced from the metal column with the polymer layer interposed therebetween. A method for manufacturing semiconductor devices includes a step of filling a mixture containing metal particles and polymers in a guide; and a step of subjecting the mixture to a heat treatment so that the polymers agglomerate to the guide to form a polymer layer that makes contact with the guide and the metal particles agglomerate away from the guide with the polymer layer interposed therebetween to form a metal column that stretches in a stretching direction of the guide from the metal particles.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: November 19, 2019
    Assignees: TOHOKU UNIVERSITY, TOSHIBA MEMORY CORPORATION
    Inventors: Mitsumasa Koyanagi, Tetsu Tanaka, Takafumi Fukushima, Kang-Wook Lee
  • Patent number: 10448830
    Abstract: An apparatus includes one or more memories storing computer readable code and processor(s). The processor(s), in response to loading and executing the computer readable code, cause the apparatus to perform operations including receiving electrocardiogram data from an electrocardiogram sensor. The electrocardiogram data includes data from an electrocardiogram from a person. The operations also include receiving pulse wave data from one or more pulse wave pressure sensors. The pulse wave data includes data from one or more pulse waves from the person. The operations further include determining blood pressure using the electrocardiogram data or the pulse wave data from the chest and the pulse wave data from the wrist or finger, and outputting an indication of the blood pressure. Another apparatus uses pulse wave data from two pulse wave sensors (e.g., pulse wave pressure sensor(s) and/or PPG sensor(s)) and blood pressure determinations are made using these pulse wave data.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: October 22, 2019
    Assignee: International Business Machines Corporation
    Inventors: John U. Knickerbocker, Hyung-Min Lee, Kang-Wook Lee
  • Patent number: 10350713
    Abstract: A flux formulation includes an activator and a protic solvent. The activator may be glutaric acid, levulinic acid, 2-ketobutyric acid, 2-oxovaleric acid, or mixtures thereof. Suitable protic solvents include alkanediol, alkoxy propanol and alkoxy ethanol. The flux formulation may be a no-clean flux formulation that may be used in the soldering of electronic circuit board assemblies, for example, in conjunction with a support fixture having a planar back surface that minimizes vibrations during processing that might otherwise cause misalignment between a chip and a substrate prior to solder reflow.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 16, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Victor Alvarez, Pierre Y. Beaulieu, Kang-Wook Lee, Jae-Woong Nah, Lavanya Turlapati
  • Publication number: 20190090814
    Abstract: A wearable patch system includes an electrocardiogram (ECG) sensor having electrodes configured to contact a subject. An electronic stethoscope has a diaphragm structure responsive to sounds from the subject. The ECG sensor and the electronic stethoscope are co-located to measure respective parameters concurrently from a same position. A housing is configured to support the diaphragm structure and the electrodes. The housing includes a mechanical interface configured to mount on the subject. A communications circuit is disposed on or in the housing to communicate with a remote component.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Inventor: Kang-Wook Lee
  • Publication number: 20190011159
    Abstract: An air conditioning device includes a vapor injection cycle in which an operating speed of a compressor is adjusted to improve efficiency, and a method for controlling the device. The air conditioning device includes an inner heat-exchanger for exchanging heat between a first portion of refrigerant passing through a condenser and a second portion of the refrigerant branched from the first refrigerant, and an injection channel through which the second portion of the refrigerant is injected into the compressor. The inner heat exchanger includes an outer tube and an inner tube disposed inside the outer tube. The first portion of the refrigerant flows into the inner tube, while the second portion of the refrigerant flows into the outer tube. Thus, when a variation of air-conditioning load is small and an injection super-heating temperature is low, the device enables reduction of the compressor rotation speed to ensure high injection super-heating temperature.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 10, 2019
    Applicant: LG Electronics Inc.
    Inventors: Kang Wook LEE, Soojin KANG, Hansaem PARK, Ho Jong JEONG
  • Patent number: 10172556
    Abstract: A wearable patch system includes an electrocardiogram (ECG) sensor having electrodes configured to contact a subject. An electronic stethoscope has a diaphragm structure responsive to sounds from the subject. The ECG sensor and the electronic stethoscope are co-located to measure respective parameters concurrently from a same position. A housing is configured to support the diaphragm structure and the electrodes. The housing includes a mechanical interface configured to mount on the subject. A communications circuit is disposed on or in the housing to communicate with a remote component.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: January 8, 2019
    Assignee: International Business Machines Corporation
    Inventor: Kang-Wook Lee