Patents by Inventor Sang Yoon Park

Sang Yoon Park 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: 20240239783
    Abstract: The present invention relates to a crystal form VII of a compound represented by chemical formula 1, a method for preparing same, and a pharmaceutical composition comprising same. The crystal form VII of the compound represented by chemical formula 1, according to the present invention, can be characterized by an XRD pattern, a DSC profile, and/or a TGA profile.
    Type: Application
    Filed: May 6, 2022
    Publication date: July 18, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Ho Yeon LEE, Jin Ok HAM, Sang Dae LEE, Ji Yoon KIM, Jong Won PARK, Sung Won KIM, Seul Ah CHUN
  • Patent number: 11970579
    Abstract: Provided are a polyamic acid resin derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride, and a polyamideimide film including polyamideimide derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: April 30, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Hyeon Jeong Kim, Sang Yoon Park, Tae Sug Jang, Jin Hyung Park
  • Patent number: 11960159
    Abstract: Provided are a polyamideimide film, a window cover film, and a display panel including the same. More specifically, a polyamideimide film including an amideimide structure derived from a dianhydride, a diamine, and an aromatic diacid dichloride is provided, wherein a chlorine content in the film is 5 to 33 ppm and a yellow index change amount ?YI is 5 or less, the yellow index change amount being measured in accordance with ASTM E313 after repeating a process of irradiating 0.55 W/m2 of UVA at 340 nm at 40° C. for 20 hours and then blocking UVA for 4 hours three times.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: April 16, 2024
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Hyeon Jeong Kim, Hye Ri Kim, Se Rah Moon, Sang Yoon Park, Hyo Shin Kwak
  • Publication number: 20240026155
    Abstract: A polyamideimide film including a polyamideimide resin including units derived from dianhydride, aromatic diamine, and aromatic diacid dichloride; and a UV blocker including a benzotriazole-based compound is provided. The polyamideimide film according to one embodiment has UV weather resistance for a long time, low haze and a low yellow index, and a high modulus, so that optical and mechanical properties may be simultaneously implemented.
    Type: Application
    Filed: June 22, 2023
    Publication date: January 25, 2024
    Inventors: Byung Guk Kim, Jin Su Park, Sun Kug Kim, Sang Yoon Park, Hyun Suk Chung
  • Patent number: 11866097
    Abstract: Disclosed is a lower cross member of a vehicle. The lower cross member includes a core member configured to be disposed on a vehicle floor so as to extend in a width direction of the vehicle, to be formed of a composite material including unidirectional carbon fiber or bidirectional carbon fiber, and to have a cross-section including at least one closed curve, a lower layer configured to extend in an extending direction of the core member, to be disposed between the core member and the vehicle floor, and to be formed of a composite material including a first multi-axial glass fabric, and an upper layer configured to extend in the extending direction of the core member, to be disposed on an upper surface of the core member, and to be formed of a composite material including a second multi-axial glass fabric.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: January 9, 2024
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Kolonglotech, Inc.
    Inventors: Hyun Sik Kim, Sang Yoon Park, Deok Hwa Hong, Hee Seouk Chung, Byeong Cheon Lee, Yeun Ho Yu, Young Gyu Kim, Jeong Wan Han, Hyeon Seok Do, Hyun Kyu Shin, Cheol Min Nam, Kum Soo Bae, Seong Jong Kim, Jun Youp Kim
  • Patent number: 11821877
    Abstract: The present disclosure relates to an apparatus and a method for an impact test, which can easily accelerate an impact body at a desired acceleration using an air pressure and an electromagnetic force. According to an embodiment of the present disclosure, an apparatus for an impact test includes a clamping unit configured to fix a specimen, and an impact unit disposed to be spaced apart from the clamping unit and configured to accelerate and launch an impact body to collide with the specimen by an air pressure and an electromagnetic force.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: November 21, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, PUSAN NAT. UNI. INDUSTRY-UNIVERSITY COOP.FDN.
    Inventors: Sang Won Lim, Sang Yoon Park, Yong Beom Lee, Sang Jae Yoon, Chi Hoon Choi, Jeong Kim
  • Patent number: 11773221
    Abstract: The present invention relates to a polyimide-based film, a window cover film, and a display panel including the same. More specifically, the present invention relates to a polyimide-based film having a difference (?I) between the maximum and minimum values of intensity in a thickness direction of 0.6 or less, when an aromatic ring peak of 1610 to 1630 cm?1 was measured by Raman spectroscopy in which an excitation wavelength is 532 nm, a laser spot is 1 to 2 ?m, and a thickness direction measurement interval is 1 ?m.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: October 3, 2023
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Hyeon Jeong Kim, Sang Yoon Park
  • Publication number: 20230264410
    Abstract: Disclosed are a composite panel having improved vibration characteristics, and a method for manufacturing the same. The composite panel includes a hybrid layer formed at a neutral axis of the composite panel, the hybrid layer including a vibration damping layer and an intermediate material layer. The composite panel also includes structural material layers laminated on both surfaces of the hybrid layer and surface layers laminated on outer surfaces of the respective structural material layers to form outermost layers of the composite panel.
    Type: Application
    Filed: December 7, 2022
    Publication date: August 24, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Sang Jae Yoon, Chi Hoon Choi, Sang Yoon Park, Sang Won Lim
  • Patent number: 11587693
    Abstract: The present disclosure provides a solidifying method of a radionuclide. The solidifying method of the radionuclide includes operations of: providing a low melting point glass including Bi2O3, B2O3, ZnO and SiO2; providing a glass mixture mixing a mixture to be treated containing a hydroxide of radionuclide and BaSO4 and the low melting point glass; and heating the glass mixture.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: February 21, 2023
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Hee Chul Eun, Na On Chang, Seon Byeong Kim, Wang Kyu Choi, Sang Yoon Park, Hui Jun Won, Man Soo Choi, Byung Seon Choi, Jei Kwon Moon, Chong Hun Jung, Song Bok Lee, Sang Hun Lee, Bum Kyoung Seo
  • Publication number: 20220389165
    Abstract: Provided a diamine compound, a polyimide precursor and a polyimide film using the same, and a use thereof. The diamine compound may be very useful as a monomer for manufacturing a polyimide film having excellent transparency, high heat resistance, and low retardation.
    Type: Application
    Filed: May 3, 2022
    Publication date: December 8, 2022
    Inventors: Joo Hyun Lee, Sang Yoon Park, So Young Lee
  • Publication number: 20220379972
    Abstract: A lower cross member for a vehicle is disposed on a floor of a vehicle. The lower cross member includes a core member and a reinforcing layer. The core member is made of a composite material containing 70 wt. % or more of unidirectional carbon fibers, and the reinforcing layer is made of a composite material containing 70 wt. % or more of fiberglass.
    Type: Application
    Filed: November 17, 2021
    Publication date: December 1, 2022
    Inventors: Sang Yoon PARK, Seung Chan LEE, Yong Beom LEE, Pil Won KANG, Hyun Sik KIM, Sang Sun PARK, Hee Seouk CHUNG, Seung Uk KANG, Chi Hoon CHOI, Seong Jong KIM, Dong Won KIM
  • Publication number: 20220155197
    Abstract: The present disclosure relates to an apparatus and a method for an impact test, which can easily accelerate an impact body at a desired acceleration using an air pressure and an electromagnetic force. According to an embodiment of the present disclosure, an apparatus for an impact test includes a clamping unit configured to fix a specimen, and an impact unit disposed to be spaced apart from the clamping unit and configured to accelerate and launch an impact body to collide with the specimen by an air pressure and an electromagnetic force.
    Type: Application
    Filed: July 12, 2021
    Publication date: May 19, 2022
    Inventors: Sang Won Lim, Sang Yoon Park, Yong Beom Lee, Sang Jae Yoon, Chi Hoon Choi, Jeong Kim
  • Publication number: 20220135470
    Abstract: Provided is a polyamideimide film and a window cover film including the same. More particularly, a polyamideimide film which may provide physical properties satisfying both modulus and retardation in a thickness direction which are in a trade-off relationship with each other, and thus, has a less screen distortion phenomenon when it is applied to a window cover film and excellent optical properties, and a window cover film including the same are provided.
    Type: Application
    Filed: November 2, 2021
    Publication date: May 5, 2022
    Inventors: Jin Hyung Park, Sang Yoon Park, Hyeon Jeong Kim, Hye Ri Kim
  • Patent number: 11318722
    Abstract: The present invention provides a method for manufacturing a polymer film, the method comprising the steps of: drying a polymer precursor to form a precursor film; and curing the precursor film to form a polymer film, wherein the drying is performed such that the content of a solvent remaining in the precursor film after the drying is 30% or less.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 3, 2022
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Seung-Min Jeon, Weon-Jung Choi, Sang-Yoon Park, Jin-Hyung Park
  • Patent number: 11289232
    Abstract: A chemical decontamination reagent containing a reducing agent, a reductive metal ion, and an inorganic acid is provided to remove a radioactive oxide layer on a metal surface. The reagent can dissolve the radioactive oxide layer on the metal surface effectively at a relatively low temperature and enables a simple process of contacting the reagent to the radioactive oxide, thus economically effective in terms of cost and time required for the process. Since the decontamination does not use a conventional organic chelating agent such as oxalic acid, but the reducing agent as a main substance, the residuals of the reducing agent remained after decontamination can be decomposed and removed with an oxidizing agent. Due to the easy decomposition with the chemical decontamination reagent, secondary wastes can be minimized and the radionuclides remained in the decontamination reagent solution can be removed effectively.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: March 29, 2022
    Assignees: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO AND NUCLEAR POWER CO., LTD.
    Inventors: Hui-Jun Won, Chong-Hun Jung, Sang Yoon Park, Wangkyu Choi, Jung-Sun Park, Jeikwon Moon, In-Ho Yoon, Byung-Seon Choi
  • Patent number: 11279113
    Abstract: The present invention provides a method for preparing a polymer film, comprising the steps of: forming a precursor film by drying a polymer precursor; and forming a polymer film by curing the precursor film, wherein the curing of the precursor film is carried out on a substrate film.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 22, 2022
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Seung-Min Jeon, Jin-Hyung Park, Sang-Yoon Park
  • Publication number: 20210340326
    Abstract: The present invention relates to a polyimide-based film, a window cover film, and a display panel including the same. More specifically, the present invention relates to a polyimide-based film having a difference (?I) between the maximum and minimum values of intensity in a thickness direction of 0.6 or less, when an aromatic ring peak of 1610 to 1630 cm?1 was measured by Raman spectroscopy in which an excitation wavelength is 532 nm, a laser spot is 1 to 2 ?m, and a thickness direction measurement interval is 1 ?m.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 4, 2021
    Inventors: Hyeon Jeong Kim, Sang Yoon Park
  • Publication number: 20210335513
    Abstract: The present disclosure provides a solidifying method of a radionuclide. The solidifying method of the radionuclide includes operations of: providing a low melting point glass including Bi2O3, B2O3, ZnO and SiO2; providing a glass mixture mixing a mixture to be treated containing a hydroxide of radionuclide and BaSO4 and the low melting point glass; and heating the glass mixture.
    Type: Application
    Filed: April 27, 2020
    Publication date: October 28, 2021
    Inventors: Hee Chul Eun, Na On Chang, Seon Byeong Kim, Wang Kyu Choi, Sang Yoon Park, Hui Jun Won, Man Soo Choi, Byung Seon Choi, Jei Kwon Moon, Chong Hun Jung, Song Bok Lee, Sang Hun Lee, Bum Kyoung Seo
  • Publication number: 20210324146
    Abstract: Provided are a polyamideimide film, a window cover film, and a display panel including the same. More specifically, a polyamideimide film including an amideimide structure derived from a dianhydride, a diamine, and an aromatic diacid dichloride is provided, wherein a chlorine content in the film is 5 to 33 ppm and a yellow index change amount ?YI is 5 or less, the yellow index change amount being measured in accordance with ASTM E313 after repeating a process of irradiating 0.55 W/m2 of UVA at 340 nm at 40° C. for 20 hours and then blocking UVA for 4 hours three times.
    Type: Application
    Filed: April 19, 2021
    Publication date: October 21, 2021
    Inventors: Hyeon Jeong Kim, Hye Ri Kim, Se Rah Moon, Sang Yoon Park, Hyo Shin Kwak
  • Patent number: 11137524
    Abstract: Provided is a hard coating film including a polyamideimide substrate layer and a hard coating layer, each of which has a predetermined refractive index, with a difference in the refractive index between those layers being 0.05. The substrate layer has a tensile modulus of 3 to 7 GPa, at a thickness of 80 ?m, as measured according to ASTM D111. The present invention relates to a hard coating film having improved mechanical and optical properties.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 5, 2021
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Jong Nam Ahn, Keon Hyeok Ko, Byoung Sun Ko, Sang Yoon Park, Jin Su Park, Ho Chul Yoon, Tae Sug Jang