Patents by Inventor Sung-Woo Kim

Sung-Woo Kim 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: 12227687
    Abstract: A quantum dot comprising a core comprising a first semiconductor nanocrystal comprising zinc, selenium, and optionally tellurium; and a shell disposed on the core and comprising a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, and comprising zinc and at least one of sulfur and selenium, wherein the shell comprises at least three branches extending from the core, wherein at least one of the branches has a length of greater than or equal to about 2 nm, the quantum dot emits blue light comprising a maximum emission peak at a wavelength of less than or equal to about 470 nm, a full width at half maximum (FWHM) of the maximum emission peak is less than about 35 nm, and the quantum dot does not comprise cadmium.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: February 18, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Woo Kim, Jin A Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
  • Publication number: 20250022716
    Abstract: A method of fabricating a semiconductor device includes providing a substrate, forming a target film, a first mask film, a second mask film, and an upper mask pattern on the substrate, forming a first spacer pattern that includes a first line portion and a second line portion, and a folding portion that connects the first line portion and the second line portion, forming a slit mask pattern that partially covers the first spacer pattern, forming a first mask pattern by patterning the second mask film using the slit mask pattern and the first spacer pattern as an etching mask, forming a second spacer pattern, forming a second mask pattern by patterning the first mask film using the second spacer pattern as an etching mask, and forming a plurality of target patterns by patterning the target film using the second mask pattern as an etching mask.
    Type: Application
    Filed: April 30, 2024
    Publication date: January 16, 2025
    Inventors: Eun Jung KIM, Sung Woo KIM, Hyun Seo SHIN, Min Jeong CHO, Min Su CHOI
  • Patent number: 12193252
    Abstract: A light emitting device includes: a first electrode and a second electrode with a surface facing the first electrode; an emission layer disposed between the first electrode and the second electrode and including a quantum dot (e.g., a plurality of quantum dots); and an electron auxiliary layer disposed between the emission layer and the second electrode. The electron auxiliary layer includes a first layer including a first metal oxide, and a second layer disposed on the first layer and including a second metal oxide. A roughness of an interface between the second layer and the second electrode is less than about 10 nm as determined by an electron microscopy analysis. An absolute value of a difference between a conduction band edge energy level of the second layer and a work function of the second electrode may be less than or equal to about 0.5 eV, and a conduction band edge energy level of the first layer may be less than the conduction band edge energy level of the second layer.
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: January 7, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heejae Lee, Sung Woo Kim, Eun Joo Jang, Dae Young Chung, Moon Gyu Han
  • Patent number: 12146091
    Abstract: A quantum dot according to an embodiment includes a core including a first semiconductor nanocrystal including zinc, selenium, and tellurium and a semiconductor nanocrystal shell on the core, the semiconductor nanocrystal shell including a zinc chalcogenide, wherein the quantum dot does not include cadmium, the zinc chalcogenide includes zinc and selenium, the quantum dot further includes gallium and a primary amine having 5 or more carbon atoms, and the quantum dot is configured to emit light having a maximum emission peak in a range of greater than about 450 nanometers (nm) and less than or equal to about 480 nm by excitation light. A method of producing the quantum dot and an electronic device including the same are also disclosed.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: November 19, 2024
    Assignees: SAMSUNG DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Woo Kim, Eun Joo Jang, Hyo Sook Jang, Hwea Yoon Kim, Yuho Won
  • Publication number: 20240381682
    Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same are provided. The method of manufacturing the electroluminescent device comprises disposing a light emitting layer including a semiconductor nanoparticle on a first electrode; depositing a composition including a zinc oxide nanoparticle containing a first metal onto the light emitting layer to provide an electron transport layer; and disposing a second electrode on the electron transport layer to provide the electroluminescent device. The first metal includes an alkaline earth metal, zirconium, tungsten, titanium, yttrium, aluminum, gallium, indium, tin, cobalt, vanadium, or a combination thereof. The zinc oxide nanoparticle has a particle size of 1 nanometer or more and 50 nanometers or less. Preparation of the zinc oxide nanoparticle includes contacting a first metal precursor, a zinc precursor, a base, and a metal carbonate in an organic solvent to form the zinc oxide nanoparticle.
    Type: Application
    Filed: May 13, 2024
    Publication date: November 14, 2024
    Inventors: Sung Woo KIM, You Jung CHUNG, Dongchan KIM, Enjung KIM, Chan Su KIM, Hong Kyu SEO, ILYOUNG LEE, Sungwoo HWANG
  • Patent number: 12123371
    Abstract: A thrust enhancing device is disclosed. The thrust enhancing device enhances thrust of a thrust generation part in a state coupled to the thrust generation part configured to obtain a propulsive force by using a reaction force of a fluid. The thrust enhancing device includes a venturi part configured to receive a basic fluid allowed to flow by the thrust generation part and allow the basic fluid to pass through the inside thereof, and an ejection induction part disposed in an inner flow field of the venturi part and configured to linearize a flow of a fluid to be ejected to the outside of the venturi part.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: October 22, 2024
    Inventors: Jung Gyu Kim, Sung Woo Kim
  • Publication number: 20240335688
    Abstract: Disclosed herein is a sprinkler head device for removal of smoke and toxic gas equipped with a rotary venturi, which includes a nozzle configured to spray water supplied from the outside, a venturi casing configured to receive the water sprayed from the nozzle to allow the same to pass therethrough in a state in which it is rotatably supported by the nozzle, to generate negative pressure while the water passes therethrough to suck ambient gas, and to mix the sucked gas with the water to discharge a mixture thereof, a rotary vane fixed to the inside of the venturi casing and configured to transmit rotational force to the venturi casing by means of kinetic energy received from water, and a press-fit vane positioned at the venturi casing and configured to draw in ambient gas and press the same into the venturi casing when the venturi casing rotates.
    Type: Application
    Filed: March 25, 2022
    Publication date: October 10, 2024
    Applicant: SP&E CO. LTD.
    Inventor: Sung Woo KIM
  • Patent number: 12114562
    Abstract: Disclosed herein are an anthracene derivative represented by [Chemical Formula A] and an organic light-emitting diode comprising same. In [Chemical Formula A], the substituents R1 to R5, R, R11 to R18, L1, and n are as defined in the description.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: October 8, 2024
    Assignee: SFC CO., LTD.
    Inventors: Soon-Wook Cha, Yoona Shin, Jung-Ho Yoo, Sung Woo Kim, Jiwon Lee, Seok-Bae Park, Hee-Dae Kim, Yu-Rim Lee, Dong Myung Park, Seongeun Woo
  • Patent number: 12114518
    Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same. The electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode, the emission layer including light emitting particles; an electron transport layer disposed between the first electrode and the emission layer; and a hole transport layer disposed between the second electrode and the emission layer, wherein the electron transport layer includes inorganic oxide particles and a metal-organic compound, the metal-organic compound or a thermal decomposition product of the metal-organic compound being soluble a non-polar solvent.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: October 8, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Woo Kim, Chan Su Kim, Tae Ho Kim, Kun Su Park, Eun Joo Jang, Jin A Kim, Tae Hyung Kim, Jeong Hee Lee
  • Publication number: 20240268198
    Abstract: A display apparatus according to the disclosure comprises a substrate including first region and eh second region, a display device for display an image in the first region, and a lens above the display device in the first region, wherein a center of the display device and a center of the lens are spaced apart from each other by a predetermined distance.
    Type: Application
    Filed: July 19, 2023
    Publication date: August 8, 2024
    Inventors: Yong-Ku LEE, Sung-Woo KIM, Young-Bok LEE, Chi-yong KIM, A-Ra YOON, Se-Wan OH
  • Publication number: 20240254388
    Abstract: A quantum dot including: a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, and in the quantum dot, a mole ratio of the sulfur with respect to the selenium is less than or equal to about 2.4:1. A production method of the quantum dot and an electronic device including the same are also disclosed.
    Type: Application
    Filed: April 9, 2024
    Publication date: August 1, 2024
    Inventors: Yuho WON, Sung Woo KIM, Jin A KIM, Jeong Hee LEE, Tae Hyung KIM, Eun Joo JANG
  • Publication number: 20240260407
    Abstract: A light emitting display device includes a substrate in which a display region and a non-display area are defined; a light emitting diode which is on the substrate and is provided in a pixel region within the display region; a protective film which is on the light emitting diode, and includes an edge portion an outer side surface of which is located in the non-display region and has an inclined step structure including a plurality of steps; a lens which is on the protective film and corresponds to the pixel region; a planarization film covering the lens; a first adhesive layer which is on the planarization film and located in the display region and the non-display region; and a cover window on the first adhesive layer.
    Type: Application
    Filed: December 7, 2023
    Publication date: August 1, 2024
    Applicant: LG Display Co., Ltd
    Inventors: Se-Wan OH, A-Ra YOON, Young-Bok LEE, Sung-Woo KIM, Yong-Ku LEE, Chi-Yong KIM
  • Publication number: 20240244937
    Abstract: A display apparatus includes a substrate with a plurality of pixel areas. The display apparatus includes a light-emitting device formed in a pixel area for emitting light. An encapsulation unit is formed on the light-emitting device. The display apparatus includes a black matrix on the encapsulation unit, where an opening in the black matrix overlaps with the light-emitting device in a first direction. An upper surface of the control insulating layer is formed with a groove that is a recessed portion toward the substrate. An optical lens is disposed above the groove in the control insulating layer.
    Type: Application
    Filed: September 5, 2023
    Publication date: July 18, 2024
    Inventors: You Yong Jin, Young Bok Lee, Sung Woo Kim, Keong Jin Lee, Yong Ku Lee, Chi Yong Kim, Won Sik Lee, Se Wan Oh, Seok Ho Ki
  • Patent number: 12041802
    Abstract: Quantum dots and electroluminescent devices including the same, wherein the quantum dots include a core including a first semiconductor nanocrystal including a zinc chalcogenide; and a shell disposed on the core, the shell including zinc, sulfur, and selenium, wherein the quantum dots have an average particle size of greater than 10 nm, wherein the quantum dots do not include cadmium, and wherein a photoluminescent peak of the quantum dots is present in a wavelength range of greater than or equal to about 430 nm and less than or equal to about 470 nm.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: July 16, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin A Kim, Yuho Won, Sung Woo Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
  • Publication number: 20240224556
    Abstract: A method of producing an electroluminescent device, the method including: disposing a light emitting layer including a semiconductor nanoparticle on a first electrode; applying a composition including a zinc oxide nanoparticle onto the light emitting layer to form an electron transport layer, the zinc oxide nanoparticle including a first metal and an alkali metal; and disposing the second electrode on the electron transport layer to produce the electroluminescent device, wherein a preparation of the zinc oxide nanoparticle includes admixing a first solution including a zinc precursor and a first metal precursor in a solvent with a second base and optionally a first base to prepare the zinc oxide nanoparticle, wherein the first base includes an organic base containing a C1 to C50 organic group, and the second base includes an inorganic base including the alkali metal.
    Type: Application
    Filed: December 29, 2023
    Publication date: July 4, 2024
    Inventors: You Jung CHUNG, Sung Woo KIM, Dongchan KIM, Ilyoung LEE, Tae Ho KIM, Hong Kyu SEO
  • Publication number: 20240224562
    Abstract: Disclosed are an electroluminescent device including a first electrode and a second electrode spaced apart from each other; a light-emitting layer disposed between the first and second electrodes; and an electron transport layer between the light-emitting layer and the second electrode; a production method thereof; and a display device including the same. The light-emitting layer includes a semiconductor nanoparticle, the electron transport layer includes a zinc oxide nanoparticle having a size of 1 nm or more to 15 nm or less, and the zinc oxide nanoparticle further includes magnesium and aluminum, and an amount of aluminum in the zinc oxide nanoparticle is greater than or equal to about 0.5 mol % and less than or equal to about 30 mol % based on a total amount of zinc, magnesium, and aluminum.
    Type: Application
    Filed: December 29, 2023
    Publication date: July 4, 2024
    Inventors: Chan Su KIM, Sung Woo KIM, Ilyoung LEE, You Jung CHUNG, Moon Gyu HAN
  • Patent number: D1035701
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: July 16, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Se Hoon Oh, Seok Young Youn, Sung Woo Kim, Jong Kyu Choi, Dong Jin Hyun, Ju Young Yoon
  • Patent number: D1035702
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: July 16, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Se Hoon Oh, Seok Young Youn, Sung Woo Kim, Jong Kyu Choi, Dong Jin Hyun, Ju Young Yoon
  • Patent number: D1035703
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: July 16, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Se Hoon Oh, Seok Young Youn, Sung Woo Kim, Jong Kyu Choi, Dong Jin Hyun, Ju Young Yoon
  • Patent number: D1045916
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: October 8, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Se Hoon Oh, Seok Young Youn, Sung Woo Kim, Jong Kyu Choi, Dong Jin Hyun, Ju Young Yoon