Patents by Inventor Sang Hwa Lee

Sang Hwa 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: 11661513
    Abstract: A thermoplastic resin composition according to the present invention comprises: about 100 parts by weight of a polycarbonate resin; about 5 to about 100 parts by weight of an inorganic filler; about 0.1 to about 2 parts by weight of a maleic anhydride-modified olefin-based copolymer; and about 0.1 to about 2 parts by weight of a phosphite compound represented by chemical formula 1. The thermoplastic resin composition is excellent in terms of chemical resistance, impact resistance, rigidity, physical property balance thereof, and the like.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: May 30, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Nam Hyun Kim, Bong Jae Lee, Young Mi Kim, Ik Mo Kim, Sang Hwa Lee, Sang Hyun Hong
  • Patent number: 11655335
    Abstract: A thermoplastic resin composition of the present invention comprises: about 45 wt % to about 65 wt % of an aromatic polyamide resin comprising at least one of a repeat unit represented by Formula 1, a repeat unit represented by Formula 2, and a repeat unit represented by Formula 3; about 1 wt % to about 20 wt % of an olefin copolymer; about 15 wt % to about 35 wt % of calcium carbonate; and about 5 wt % to about 25 wt % of zinc oxide, wherein the weight ratio of the calcium carbonate and the zinc oxide (calcium carbonate:zinc oxide) is about 5:1 to about 1:1. The thermoplastic resin composition and a molded article formed therefrom have good properties in terms of plating adhesion, appearance, heat resistance, etc.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: May 23, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Yeong Deuk Seo, Kyoung Tae Youm, Sang Hwa Lee, Sang Hyun Hong
  • Publication number: 20230092693
    Abstract: A nanostructure-based substrate for surface-enhanced Raman spectroscopy and a method for manufacturing the same are provided. The method for manufacturing the nanostructure-based substrate for surface-enhanced Raman spectroscopy includes preparing a substrate, depositing a zinc oxide (ZnO) seed layer on the substrate, growing a zinc oxide nanostructure through a synthesis manner of applying a zinc (Zn) solution to the zinc oxide (ZnO) seed layer, and coating the grown zinc oxide nanostructure with a metal.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Applicants: THE ASAN FOUNDATION, UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION
    Inventors: Jun Ki KIM, Sang Hwa LEE
  • Publication number: 20230075320
    Abstract: Disclosed are semiconductor devices and their fabrication methods. The semiconductor device comprises a logic cell on a substrate, and a first metal layer on the logic cell. The first metal layer includes first and second power lines and first to third lower lines on first to third wiring tracks therebetween. The first to third wiring tracks extend in parallel in the first direction. The first lower line includes first and second lines spaced apart in the first direction from each other at a first distance. The third lower line includes third and fourth lines spaced apart in the first direction at a second distance. The first line has a first end facing the second line. The third line has a second end facing the fourth line. A curvature at the first end is substantially the same as that at the second end.
    Type: Application
    Filed: April 29, 2022
    Publication date: March 9, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Noyoung CHUNG, Taekyum KIM, Hyunyong JEONG, Sang-Hwa LEE, Byung Je JUNG
  • Publication number: 20230060969
    Abstract: Provided is a composition for preventing hair loss and promoting hair growth, containing an ingredient for inducing anagen hair growth or hair growth promotion. The composition for preventing hair loss and promoting hair growth, of the presently claimed subject matter, shortens the period of telogen-to-anagen transition in the hair growth cycle, so as to promote hair growth and delay the transition to the catagen stage, thereby having the excellent effects of preventing hair loss and promoting hair growth.
    Type: Application
    Filed: January 23, 2020
    Publication date: March 2, 2023
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Jae-Yoon KIM, Jae-Young SHIN, Yun-Ho CHOI, Sang-Hwa LEE
  • Patent number: 11577496
    Abstract: A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 40 wt % to about 60 wt % of a polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 10 wt % of a maleic anhydride-modified olefin-based copolymer; about 5 wt % to about 20 wt % of calcium carbonate subjected to surface treatment with a silane compound; and about 20 wt % to about 40 wt % of glass fibers, wherein the silane compound includes a functional group comprising an amino group, an epoxy group, and/or a (meth)acryloxy group. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, and/or appearance, and the like.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 14, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Sang Hyun Hong
  • Publication number: 20230039451
    Abstract: A dental medical record device and a dental medical record method, in which: an image, such as a panoramic photo, a scan image, and a camera image of a patient's oral cavity, is received via artificial intelligence, and charting is performed using the artificial intelligence; and medical records for a treatment area can be read in association with a chart by clicking the treatment area in the image.
    Type: Application
    Filed: January 7, 2021
    Publication date: February 9, 2023
    Applicant: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventor: Sang Hwa LEE
  • Patent number: 11565513
    Abstract: A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 15 wt % to about 49 wt % of an aromatic polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 30 wt % of a polyamide resin having a glass transition temperature of about 40° C. to about 120° C.; about 1 wt % to about 20 wt % of an olefin-based copolymer; and about 30 wt % to about 50 wt % of calcium carbonate. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, fluidity, and/or appearance, and the like.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: January 31, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Kyoung Tae Youm, Sang Hyun Hong
  • Patent number: 11524492
    Abstract: A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 15 wt % to about 49 wt % of an aromatic polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 30 wt % of a polyamide resin having a glass transition temperature of about 40° C. to about 120° C.; about 1 wt % to about 20 wt % of an olefin-based copolymer; and about 30 wt % to about 50 wt % of calcium carbonate. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, fluidity, and/or appearance, and the like.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: December 13, 2022
    Assignee: Lotte Chemical Corporation
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Kyoung Tae Youm, Sang Hyun Hong
  • Patent number: 11519579
    Abstract: A vehicle lamp includes a light source system; a reflection system including a plurality of reflective faces to reflect light beams emitted from the light source system to travel forward; and an optical system including a plurality of lenses respectively corresponding to the plurality of reflective faces. The optical system is configured to transmit at least a portion of light reflected from each of the plurality of reflective faces through a corresponding lens among the plurality of lenses to form a predetermined light irradiation pattern.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: December 6, 2022
    Assignee: SL Corporation
    Inventors: Da Il Kang, Sun Kyoung Park, Sang Hwa Lee
  • Patent number: 11500283
    Abstract: Disclosed are mask layout correction methods and a method for fabricating semiconductor devices. The mask layout correction method comprises performing a first optical proximity correction on an initial pattern layout. The step of performing the first optical proximity correction includes providing a target pattern of the initial pattern layout with control points based on a first model, obtaining a predicted contour of the initial pattern layout by performing a simulation, and obtaining an error between the target pattern and the predicted contour from the control points. The control points include first control points on an edge of the target pattern and second control points in an inside of the target pattern. The step of obtaining the error includes acquiring first error values from the first control points, providing weights to the first error values, and acquiring second error values from the second control points.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: November 15, 2022
    Inventors: Narae Bang, Sang-Hwa Lee, Noyoung Chung
  • Patent number: 11498050
    Abstract: A method of preparing a superabsorbent polymer, which enables the preparation of the superabsorbent polymer exhibiting an improved absorption rate while maintaining excellent absorption performances is provided.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: November 15, 2022
    Inventors: Kyu Pal Kim, Jinuk Choi, Sang Hwa Lee, Gicheul Kim, Ki Hyun Kim, Seul Ah Lee
  • Patent number: 11490008
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 1, 2022
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Sung-Dae Cho, Soo-Kyun Kim, Jae-Won Moon, Yun-Je Oh, Hee-Won Jung, Sang-Hwa Lee, Nam-Ik Cho, Seong-Jong Ha
  • Publication number: 20220213317
    Abstract: A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of a polycarbonate resin; approximately 1-10 parts by weight of an additive for laser direct structuring; approximately 0.1-7 parts by weight of a maleic anhydride-modified olefin-based copolymer; and approximately 0.1-4 parts by weight of a phosphite compound represented by chemical formula 1. The thermoplastic resin composition has excellent plating reliability, impact resistance, chemical resistance and the like, and generates a small amount of gas during injection molding, and thus has excellent injection stability.
    Type: Application
    Filed: May 19, 2020
    Publication date: July 7, 2022
    Inventors: Nam Hyun KIM, Yang Il KIM, Young Mi KIM, Bong Jae LEE, Sang Hwa LEE
  • Publication number: 20220186026
    Abstract: A polyamide resin composition of the present invention comprises: approximately 100 parts by weight of a polyamide resin comprising approximately 5 to 40 weight % of an aromatic polyamide resin and approximately 60 to 95 weight % of an aliphatic polyamide resin; approximately 30 to 70 parts by weight of an inorganic filler; and approximately 0.5 to 5 parts by weight of modified polyalkylene glycol. The modified polyalkylene glycol comprises an isocyanate group, a succinimide group or an epoxy group at one terminal of polyalkylene glycol. The polyamide resin composition exhibits excellent adhesiveness with other materials, excellent antifouling properties, impact resistance, stiffness, injection moldability and the like.
    Type: Application
    Filed: March 25, 2020
    Publication date: June 16, 2022
    Inventors: Sang Hwa LEE, Ho Geun PARK, Yeong Deuk SEO
  • Publication number: 20220153030
    Abstract: The present invention provides an apparatus for treating a substrate, the apparatus including: a head unit including a head formed with one or more nozzles that discharge a treatment liquid to a substrate; and a head maintenance unit configured to perform maintenance for the head, in which the head maintenance unit may include: a liquid receiving block formed with one or more liquid receiving parts having liquid receiving spaces with open tops; a decompression line fluidly-communicating with the liquid receiving space and configured to provide reduced pressure to the liquid receiving space; and a decompression valve installed in the decompression line.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 19, 2022
    Inventors: Byung Joo LEE, Sang Hwa LEE, Dong Yun LEE, Jee Yong JUNG, Hahn Seok JEON, Kang KWON, Jae Hun JEONG, Sang Hoon KIM
  • Publication number: 20220142782
    Abstract: A customized artificial temporomandibular joint unit according to an embodiment of the present disclosure includes a first plate provided along a lower line of a lower jawbone forming a temporomandibular joint and having an insertion groove that is outwardly open, a second plate provided at a temporal bone forming the temporomandibular joint together with the lower jawbone, and a main prothesis detachably combined to the first plate without a separate fastening device by being forcibly fit into the insertion groove while approaching the first plate, and arranged in a customized manner at a facing surface location facing the second plate.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 12, 2022
    Inventors: Sang Hwa LEE, Joo Yup LEE
  • Patent number: 11274205
    Abstract: A polyamide resin composition includes an aromatic polyamide resin, an aliphatic polyamide resin, a polyacrylic acid, and glass fibers. The polyamide resin composition can have good properties in terms of heat resistance, long-term heat resistance stability, and/or appearance characteristics.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: March 15, 2022
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Sang Hyun Hong
  • Publication number: 20220049831
    Abstract: A vehicle lamp includes a light source system; a reflection system including a plurality of reflective faces to reflect light beams emitted from the light source system to travel forward; and an optical system including a plurality of lenses respectively corresponding to the plurality of reflective faces. The optical system is configured to transmit at least a portion of light reflected from each of the plurality of reflective faces through a corresponding lens among the plurality of lenses to form a predetermined light irradiation pattern.
    Type: Application
    Filed: July 9, 2021
    Publication date: February 17, 2022
    Inventors: Da Il KANG, Sun Kyoung Park, Sang Hwa Lee
  • Patent number: 11220599
    Abstract: A thermoplastic resin composition includes: a polyester resin including a repeat unit represented by Formula 1 as described in the specification; glass fibers; a white pigment; an aromatic vinyl-olefin copolymer; and talc. The thermoplastic resin composition can have good properties in terms of reflectance, reflectance retention, impact resistance, and/or moldability.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: January 11, 2022
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Yang Il Kim, Sang Hwa Lee, Hyun Su Kim, Sang Hyun Hong