Patents by Inventor Sung-Jae Lee

Sung-Jae 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).

  • Publication number: 20230224586
    Abstract: An optical image stabilization actuator is provided. The optical image stabilization actuator includes a sensor substrate on which an image sensor having an imaging plane is disposed; a fixed frame configured to accommodate the sensor substrate; a movable frame accommodated in the fixed frame and configured to move in a direction parallel to the imaging plane; a first ball member disposed between the fixed frame and the movable frame and configured to support movement of the movable frame; and a first driver disposed on the movable frame and the fixed frame and configured to provide driving force to the movable frame, wherein the sensor substrate includes a movable portion coupled to the movable frame, a fixed portion coupled to the fixed frame, and a plurality of bridges configured to movably support the movable portion.
    Type: Application
    Filed: November 17, 2022
    Publication date: July 13, 2023
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyung Hun LEE, Gab Yong KIM, Sung Jae LEE
  • Publication number: 20230217093
    Abstract: An image sensor module is provided. The image sensor module includes an image sensor which has a rectangular shape having a long side and a short side; a substrate which has a long side corresponding to the long side of the image sensor and a short side corresponding to the short side of the image sensor, wherein the image sensor is mounted on the substrate; a sub-housing installed on the substrate, the sub-housing having a first sidewall disposed on a side corresponding to the long side of the image sensor and a second sidewall disposed on a side corresponding to the short side of the image sensor; and an adhesive which bonds the sub-housing and the substrate, wherein a side surface of the substrate, disposed on the long side of the substrate and an outer surface of the adhesive are disposed on a same plane.
    Type: Application
    Filed: October 21, 2022
    Publication date: July 6, 2023
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Won Seo GU, Sung Jae LEE, Young Rok PARK
  • Patent number: 11659764
    Abstract: Provided is an amine based compound of Chemical Formula 1: and an organic electroluminescent device comprising the same. The amine based compound can be used as a material of an organic material layer of an organic electroluminescent device, and can achieve an improvement of the efficiency, a low driving voltage and/or an improvement of the lifetime characteristic when applied to the organic electroluminescent device.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 23, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jae Seung Ha, Sung Jae Lee, Hyeon Jin Mun
  • Publication number: 20230002420
    Abstract: Provided is an organic light emitting device including a light emitting layer comprising a compound of Chemical Formula 1 and a first organic material layer comprising a compound of Chemical Formula 2: wherein: Cy1 to Cy5 are each independently one selected from among a substituted or unsubstituted: aromatic hydrocarbon ring, aliphatic hydrocarbon ring, and aromatic hetero ring, or a ring in which two or more rings selected from the above group are fused, one or more of Cy1 to Cy5 are a ring of Chemical Formula 1-A: one to three of a* to d* are a position fused to or linked to Chemical Formula 1; L1 to L3 are each independently a direct bond or a substituted or unsubstituted: arylene or divalent heterocyclic group; and Ar1 and Ar2 are each independently a substituted or unsubstituted: aryl or heterocyclic group.
    Type: Application
    Filed: November 30, 2020
    Publication date: January 5, 2023
    Inventors: Sung Jae LEE, Sujeong GEUM, Moung Gon KIM, Sung Kil HONG, Younghan LEE
  • Publication number: 20220396274
    Abstract: Provided is a sensing axis variable wheel speed sensor apparatus for an autonomous vehicle, and more particularly, a sensing axis variable wheel speed sensor apparatus for an autonomous vehicle, which includes a plurality of sensors and in which the position of a sensing axis is selectively varied.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 15, 2022
    Inventors: Sung Jae Lee, Nam Hyuk Kim, Hyeong Seok Kim
  • Publication number: 20220399501
    Abstract: Provided is an organic light-emitting device including a light-emitting layer comprising a compound of Chemical Formula 1, and a first organic material layer comprising a compound of Chemical Formula 2: wherein: Cy1 to Cy5 are each independently one selected from the group consisting of a substituted or unsubstituted: aromatic hydrocarbon ring, aliphatic hydrocarbon ring, and an aromatic hetero ring, or a ring in which two or more rings selected from the above group are fused, one or more of Cy1 to Cy5 are a ring of the following Chemical Formula 1-A, wherein: Ar1 and Ar2 are the same as or different from each other, and are each independently a phenyl, a biphenyl, a terphenyl, a naphthyl, a phenanthrenyl, or a triphenylenyl, where the naphthyl, phenanthrenyl, and triphenylenyl can be substituted with a phenyl.
    Type: Application
    Filed: November 30, 2020
    Publication date: December 15, 2022
    Inventors: Sung Jae LEE, Sujeong GEUM, Moung Gon KIM, Sung Kil HONG, Younghan LEE
  • Patent number: 11515478
    Abstract: The present disclosure relates to a compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 29, 2022
    Assignee: LG CHEM LTD.
    Inventors: Yong Bum Cha, Sang Duk Suh, Yeon Hwan Kim, Sang Young Jeon, Sung Jae Lee
  • Patent number: 11497364
    Abstract: Embodiments of the disclosure relate to a robot cleaner and a controlling method thereof, and more particularly, to a robot cleaner and a traveling algorithm of a robot cleaner having an improved structure. A robot cleaner of the disclosure includes a brush unit having a suction flow path, a body unit configured to have a driving device, and be coupled to the brush unit to be rotatable with respect to the brush unit and a redirection device configured to rotate the body unit relative to the brush unit, and the redirection device includes a rotation guide extending along an inner circumferential surface of the brush unit, a rotation driving source disposed in the body unit and generating power, and a power transmission member which moves along the rotation guide by the power transmitted from the rotation driving source and rotates the body unit with respect to the brush unit.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: November 15, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Deok Sang Yun, Sang In Lee, Sung Jae Lee, Hwan Dong Lee, Hyoung Sub Choi
  • Patent number: 11459290
    Abstract: The present disclosure relates to a novel compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: October 4, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Yong Bum Cha, Sung Jae Lee, Yeon Hwan Kim, Sang Young Jeon, Su Jin Han
  • Patent number: 11461066
    Abstract: A display apparatus according to an embodiment of the disclosure includes a communicator configured to receive content from an external apparatus; a display; and a controller configured to determine whether tag information related to a component of the received content matches predetermined apparatus information, and determine whether to display the content based on the determined result.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: October 4, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo Sik Yun, Dong Hoon Seo, Sung-Jae Lee, Min Chul Jung
  • Patent number: 11407718
    Abstract: The present disclosure relates to a cyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same. The cyclic compound used as a material of an organic material layer of the organic light emitting device, provides improved efficiency, low driving voltage, and improved lifetime characteristics.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: August 9, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Yong Bum Cha, Yeon Ho Cho, Yeon Hwan Kim, Sang Young Jeon, Sung Jae Lee
  • Publication number: 20220235954
    Abstract: Disclosed is an air cleaner comprising: a housing (H); an air-purifying filter (20); a blowing unit (30); and a channel switching member (200) for switching a discharge channel such that air supplied from the blowing unit (30) flows to at least one of a first discharge port (A51) to discharge air in a first direction and the second discharge port (A52) to discharge air in a second direction. The channel switching member (200) comprises: an elevating member (210) having a first communication unit (216) that is open such that air flows to a first discharge port-side channel (A3), and having a blocking unit (215) for blocking a flow thereof to a second discharge port-side channel (A4); and an opening/closing member (220). The first discharge port-side channel (A3) and the second discharge port-side channel (A4) are opened/closed by ascending/descending of the elevating member (210) and moving of the opening/closing member (220).
    Type: Application
    Filed: July 1, 2020
    Publication date: July 28, 2022
    Applicant: COWAY CO., LTD.
    Inventors: Jun-Hyoung BAE, Sung-Jae LEE
  • Patent number: 11385220
    Abstract: Provided is, as an attempt to realize a method for measuring oxidative stress in human body fluids, a means for measuring reactive oxygen species containing a color indicator that detects the amount of reactive oxygen species present in the human body by causing a color change through reaction with malondialdehyde present in the urine or blood. The detection means has advantages of detecting malondialdehyde (MDA) present at a low concentration in a sample (urine or blood) and exhibiting excellent discrimination owing to high detection sensitivity.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 12, 2022
    Assignee: CHUNGDO PHARM. CO., LTD
    Inventors: Sung-Jin Kim, Sung-Jae Lee, Abeje Abebayehu Silte
  • Publication number: 20220194883
    Abstract: The present disclosure relates to an organic compound being represented by Formula 1, an organic light emitting diode including the organic compound and an organic light emitting device including the organic light emitting diode. The organic compound is included in an organic layer of the organic light emitting diode.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 23, 2022
    Applicants: LG Display Co., Ltd, LG CHEM, LTD.
    Inventors: Ji-Cheol SHIN, Shin-Han KIM, Jeong-Dae SEO, Joo-Yong YOON, Jun YUN, Dong-Heon KIM, Yong-Han LEE, Sung-Jae LEE
  • Publication number: 20220173318
    Abstract: Provided is an organic light emitting device including a positive electrode, a negative electrode, and an organic material layer provided between the positive electrode and the negative electrode, wherein the organic material layer comprises a hole transport material having a HOMO absolute value of 4.30 eV to 4.60 eV, and a reversibility value (Ir/If) of 0.83 or higher within an oxidation range at a scan rate of 100 mV/s, or the organic material layer comprises an electron blocking material having a reversibility value (Ir/If) of more than 0.5 within an oxidation range at a scan rate of 100 mV/s, or the organic material layer comprises an electron transport material having a LUMO absolute value of 2.60 eV to 2.90 eV, and a reversibility value (Ir/If) larger than [4.96?1.535×(the LUMO absolute value)] within a reduction range at a scan rate of 100 mV/s.
    Type: Application
    Filed: May 15, 2020
    Publication date: June 2, 2022
    Inventors: Jihye KIM, Sung Kil HONG, Wanpyo HONG, Sung Jae LEE, Sujeong GEUM
  • Patent number: 11276452
    Abstract: A memory system includes a memory device including a first area being refreshed according to a first refresh period and a second area begin refreshed according to a second refresh period longer than the first refresh period. The memory system also includes a memory controller configured to generate a write command and a write data corresponding to a first write request and a first data.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: March 15, 2022
    Assignees: SK hynix Inc., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Won Woo Ro, Hyunwuk Lee, Gun Ko, Ipoom Jeong, Min Seong Kim, Yong Tag Song, Sung Jae Lee
  • Publication number: 20220075586
    Abstract: A display apparatus according to an embodiment of the disclosure includes a communicator configured to receive content from an external apparatus; a display; and a controller configured to determine whether tag information related to a component of the received content matches predetermined apparatus information, and determine whether to display the content based on the determined result.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 10, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo Sik YUN, Dong Hoon SEO, Sung-Jae LEE, Min Chul JUNG
  • Patent number: 11251377
    Abstract: Provided is an organic light emitting device.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 15, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Yong Bum Cha, Sung Jae Lee, Yeon Hwan Kim, Sang Young Jeon, Seong Mi Cho
  • Publication number: 20220029101
    Abstract: An organic light emitting device including a first electrode; a second electrode provided to face the first electrode; and an organic material layer having one, two or more layers provided between the first electrode and the second electrode, wherein the organic material layer includes a first organic material layer including a compound of Chemical Formula 1 and a second organic material layer including a compound of Chemical Formula 2.
    Type: Application
    Filed: January 14, 2020
    Publication date: January 27, 2022
    Inventors: Sung Jae LEE, Sung KII HONG, Yongbum CHA, Woo Jin CHO, Joo Yong YOON, Hyeon Jin MUN
  • Patent number: 11225720
    Abstract: A magnetic powder contains magnetic particles, a first coating layer disposed on surfaces of the magnetic particles and containing a first glass, and a second coating layer disposed on the first coating layer and containing a second glass different from the first glass. A method of manufacturing magnetic powder includes preparing magnetic particles, forming a first coating layer containing a first glass on surfaces of the magnetic particles, and forming a second coating layer containing a second glass different from the first glass on the first coating layer.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: January 18, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Jae Lee, Jung Wook Seo, Hiroyuki Matsumoto, Chul Min Sim, Jong Sik Yoon, Jong Suk Jung