Patents by Inventor Sang-Wook Yoo

Sang-Wook 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: 20240166054
    Abstract: In an embodiment a power supply system includes a low voltage DC/DC converter (LDC) configured to convert a high voltage into a low voltage, a main battery configured to be charged by the LDC and to supply power to a junction block divided into an essential load part and a general load part, a control block comprising a first power switch configured to control power between the LDC and the junction block, a second power switch configured to control the power between the main battery and the junction block, and a load switch configured to selectively cut off the power to the general load part and an auxiliary battery configured to selectively supply power to an auxiliary junction block.
    Type: Application
    Filed: June 23, 2023
    Publication date: May 23, 2024
    Inventors: Sang Wook Park, Je Hyun Kim, Young Ho Kim, Kuk Hyeon Yoo, Oh Kab Kwon
  • Patent number: 11988892
    Abstract: Embodiments provide a lens moving apparatus including a bobbin including a first coil disposed on an outer circumferential surface thereof, a housing provided with first and second magnets for moving the bobbin by interaction with the first coil, upper and lower elastic members each coupled to both the bobbin and the housing, and a first position sensor for detecting a sum of intensities of magnetic fields of the first and second magnets, wherein the first position sensor is disposed in a space between the first magnet and the second magnet when the bobbin is disposed at an initial position.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: May 21, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sang Ok Park, Jun Taek Lee, Byung Wook Son, Sang Jun Min, Kyoung Ho Yoo
  • Patent number: 11950921
    Abstract: The present invention relates to a portable device for measuring skin condition and a skin condition diagnosis and management system using same. The device for measuring skin condition according to the present invention is a portable type of device that can be easily carried by a user, and when an image of a user's face is captured, can acquire a clear image of the entire face of the user by effectively controlling the user's face position.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 9, 2024
    Assignee: Lululab Inc.
    Inventors: Sang Wook Yoo, Yong Joon Choe, Sijun Roh
  • Publication number: 20240103250
    Abstract: A lens moving apparatus can include a cover member comprising an upper plate and a lateral plate extending from the upper plate, a bobbin disposed in the cover member, a coil disposed on the bobbin, a driving magnet disposed between the coil and the lateral plate of the cover member, and a sensing magnet disposed on the bobbin. Also, the lens moving apparatus can further include a circuit board disposed on the lateral plate of the cover member, and a position sensor disposed on the circuit board and configured to sense the sensing magnet, in which a part of the coil is disposed between the sensing magnet and the circuit board.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Seong Min LEE, Sang Ok PARK, Hyune O YOO, Byung Wook SON, Jun Taek LEE
  • Publication number: 20240079554
    Abstract: An electrode includes an electrode active material, wherein the electrode active material layer includes an electrode active material, polyvinylidene fluoride, and a conductive agent, wherein the conductive agent includes a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other, and the carbon nanotube structure is included in an amount of 0.01 wt % to 0.5 wt % in the electrode active material layer. A secondary battery including the same, and a method of preparing the electrode are also provided.
    Type: Application
    Filed: October 18, 2023
    Publication date: March 7, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Seul Ki Kim, Tae Gon Kim, Je Young Kim, Wang Mo Jung, Jung Woo Yoo, Sang Wook Lee
  • Publication number: 20230326228
    Abstract: Provided is a fingerprint authentication device comprising a biometric sensor that senses biometric information to generate a sensing signal; an image processor that extracts a calibration function based on calibration data and generates a fingerprint image based on the calibration function and the sensing signal; and an authenticator that performs fingerprint authentication by comparing the fingerprint image and registered fingerprint information. The calibration data includes information on a calibration coefficient of the calibration function.
    Type: Application
    Filed: April 7, 2023
    Publication date: October 12, 2023
    Inventors: Kee Yong KIM, Jung Hun SIN, Young Sik KIM, Tae Joon KIM, Hee Woong PARK, Sang Wook YOO
  • Patent number: 11704901
    Abstract: According to various embodiments, a wrinkle detection service providing server for providing a wrinkle detection method based on an artificial intelligence may include a data pre-processor for obtaining a skin image of a user from a skin measurement device and performing pre-processing based on feature points based on the skin image; a wrinkle detector for inputting the skin image pre-processed through the data pre-processing into an artificial neural network and generating a wrinkle probability map corresponding to the skin image; a data post-processor for post-processing the generated wrinkle probability map; and a wrinkle visualization service providing unit for superimposing the post-processed wrinkle probability map on the skin image and providing a wrinkle visualization image to a user terminal of the user.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: July 18, 2023
    Assignee: LULULAB INC.
    Inventors: Yongjoon Choe, Se Min Kim, Sang Wook Yoo, Chan Hyeok Lee, Jong Ha Lee
  • Patent number: 11650621
    Abstract: According to one aspect of the invention, a circuit board for a display device includes: a first layer; a first lead line disposed on the first layer; and a sound generator disposed on the first layer, and the sound generator including: a first electrode to receive a first driving voltage; a second electrode to receive a second driving voltage; and a second layer disposed between the first electrode and the second electrode to contract or expand according to the first driving voltage and the second driving voltage; and a first solder to electrically communicate the first lead line and the first electrode.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: May 16, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Young Choi, Jong Tae Kim, Young Sik Kim, Sang Wook Yoo, Jeong Heon Lee
  • Patent number: 11640663
    Abstract: According to various embodiments, an image analysis server for determining whether an image is suitable for skin analysis may include a DB management unit for obtaining a captured image from a skin measurement device and storing the captured image; a user detector for detecting a user's face based on the obtained image; an image suitability determination unit for determining whether the obtained image is suitable for skin analysis; a skin analyzer for analyzing skin corresponding to the detected user's face based on the image determined to be suitable for skin analysis; and a service providing unit for calculating a skin score according to the analysis and providing the calculated skin score to a user terminal.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: May 2, 2023
    Assignee: LULULAB INC.
    Inventors: Yongjoon Choe, Se Min Kim, Ju Hwan Lee, Jong Ha Lee, Sang Wook Yoo
  • Patent number: 11636600
    Abstract: According to various embodiments, a pore visualization service providing server based on artificial intelligence may include a data pre-processor for obtaining a user's face image captured by a user terminal from the user terminal and performing pre-processing based on facial feature points based on the face image; a pore image extractor for generating a pore image corresponding to the user's face image by inputting the user's face image that has been pre-processed through the data pre-processing into an artificial neural network; a data post-processor for post-processing the generated pore image; and a pore visualization service providing unit for superimposing the post-processed pore image on the face image and transmitting a pore visualization image to the user terminal.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: April 25, 2023
    Assignee: LULULAB INC.
    Inventors: Yongjoon Choe, Sun Yong Seo, Jong Ha Lee, Sang Wook Yoo
  • Publication number: 20230075333
    Abstract: According to various embodiments, a wrinkle detection service providing server for providing a wrinkle detection method based on an artificial intelligence may include a data pre-processor for obtaining a skin image of a user from a skin measurement device and performing pre-processing based on feature points based on the skin image; a wrinkle detector for inputting the skin image pre-processed through the data pre-processing into an artificial neural network and generating a wrinkle probability map corresponding to the skin image; a data post-processor for post-processing the generated wrinkle probability map; and a wrinkle visualization service providing unit for superimposing the post-processed wrinkle probability map on the skin image and providing a wrinkle visualization image to a user terminal of the user.
    Type: Application
    Filed: October 17, 2022
    Publication date: March 9, 2023
    Applicant: LULULAB INC.
    Inventors: Yongjoon CHOE, Se Min KIM, Sang Wook YOO, Chan Hyeok LEE, Jong Ha LEE
  • Publication number: 20220344044
    Abstract: A user-customized skin diagnosis system includes: a portable skin condition measurement device for photographing a face of a user in a contactless manner; and a skin analysis device that receives an image of the user's face photographed from the portable skin condition measurement device, analyzes the received image for at least one skin analysis item based on preset image processing and deep learning, and generates and displays skin diagnosis information and customized recommendation information according to the analyzed result.
    Type: Application
    Filed: June 5, 2020
    Publication date: October 27, 2022
    Applicant: LULULAB INC.
    Inventors: Sang Wook YOO, Yongjoon CHOE
  • Patent number: 11477553
    Abstract: A display device includes: a display panel including a substrate and a pixel array layer disposed on a surface of the substrate; a sound generation device disposed on an opposing surface opposite to the surface of the substrate; and a set cover including a plurality of ribs which overlap the sound generation device in a thickness direction of the display panel. The sound generation device vibrates the display panel to output a sound.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Tae Kim, Sang Wook Yoo
  • Patent number: 11449997
    Abstract: A skin condition measuring module according to the present invention can be designed to effectively diagnose a user's skin condition while being installed within or connected with: a kiosk; a skin condition measuring mirror; a vending machine for performing skin condition measurement and providing cosmetic products; or a module-embedded skin condition measuring device.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: September 20, 2022
    Assignee: Lululab Inc.
    Inventors: Sang Wook Yoo, Yong Joon Choe
  • Publication number: 20220225927
    Abstract: The present invention relates to a device for skin condition measurement and skin care, and a system for skin condition measurement and skin care comprising same. More particularly, the present invention relates to a device for skin condition measurement and skin care, and a system for skin condition measurement and skin care comprising same which are designed to measure the skin condition and provide a guide for the type of skin care equipment, located in an inner space, and the instructions therefor.
    Type: Application
    Filed: May 19, 2020
    Publication date: July 21, 2022
    Applicant: LULULAB INC.
    Inventors: Sang Wook YOO, Yong Joon CHOE
  • Patent number: 11327609
    Abstract: A display device including a display panel having a display area and a non-display area disposed around the display area; a touch sensor disposed on the display panel, the touch sensor comprising a sensing area corresponding to the display area, a peripheral area corresponding to the non-display area, and a pad unit disposed on a part of the peripheral area; a flexible printed circuit board disposed on the touch sensor in the peripheral area and connected to the pad unit; a polarization layer disposed on the touch sensor and a part of the flexible printed circuit board; and a printed layer disposed on at least an area between the flexible printed circuit board and the sensing area.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 10, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choon Hyop Lee, Jung Mok Park, Hee Woong Park, Sang Wook Yoo, Ga Yeon Yun, Jeong Heon Lee, Byeong Kyu Jeon
  • Publication number: 20220114828
    Abstract: A display device includes: a display panel; a fingerprint sensor which is disposed on a surface of the display panel and senses a user's fingerprint by emitting ultrasonic waves; and a first vibrator which is disposed on a surface of the fingerprint sensor and generates vibrations based on driving voltages applied thereto.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 14, 2022
    Inventors: Jong Tae KIM, Sang Wook YOO
  • Patent number: 11294423
    Abstract: A display device may include: a display panel; a vibration generating device disposed on one surface of the display panel, the vibration generating device configured to generate vibration to be transmitted to the display panel; a panel bottom member disposed between the display panel and the vibration generating device; and a vibration transmitting member disposed in the panel bottom member to at least partially overlap with the vibration generating device in plan view.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: April 5, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong Heon Lee, Young Sik Kim, Jong Tae Kim, Sang Wook Yoo, Si Young Choi
  • Patent number: 11281339
    Abstract: A display device including a display panel having a display area and a non-display area disposed around the display area; a touch sensor disposed on the display panel, the touch sensor comprising a sensing area corresponding to the display area, a peripheral area corresponding to the non-display area, and a pad unit disposed on a part of the peripheral area; a flexible printed circuit board disposed on the touch sensor in the peripheral area and connected to the pad unit; a polarization layer disposed on the touch sensor and a part of the flexible printed circuit board; and a printed layer disposed on at least an area between the flexible printed circuit board and the sensing area.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choon Hyop Lee, Jung Mok Park, Hee Woong Park, Sang Wook Yoo, Ga Yeon Yun, Jeong Heon Lee, Byeong Kyu Jeon
  • Patent number: 11222195
    Abstract: An electronic apparatus for illuminating and photographing a user's face and a control method thereof are provided. The electronic apparatus includes a camera configured to photograph a user's face, a transceiver configured to perform communication with a user terminal, and at least one processor configured to photograph the user's face a plurality of times on the basis of a plurality of photographing parameters to obtain a plurality of images, extract face regions corresponding to each of the plurality of images photographed on the basis of the plurality of photographing parameters, synthesize the extracted user's face regions with each other to create a synthesized image, and control the transceiver to transmit data on the synthesized image to the user terminal for the purpose of skin analysis for the user's face.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: January 11, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-gu Jeong, Sang-wook Yoo, Yong-joon Choe, Ha-ram O, Sang-hyun Lee, Kyong-tae Park