Patents by Inventor Tae Kwang Lee

Tae Kwang 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: 20240141492
    Abstract: Susceptor assemblies having a susceptor base with a plurality of pockets formed in a surface thereof are described. Each of the pockets has a pocket edge angle in the range of 30 to 75° and a pocket edge radius in the range of 0.40±0.05 mm to 1.20 mm±0.05 mm. The pockets have a raised central region and an outer region that is deeper than the raised central region, relative to the surface of the surface of the susceptor base.
    Type: Application
    Filed: March 23, 2023
    Publication date: May 2, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Prasanth Narayanan, Vijayabhaskara Venkatagiriyappa, Keiichi Tanaka, Ning Li, Robert B. Moore, Robert C. Linke, Mandyam Sriram, Mario D. Silvetti, Michael Racine, Tae Kwang Lee
  • Publication number: 20240147845
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Application
    Filed: December 6, 2023
    Publication date: May 2, 2024
    Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
  • Patent number: 11955625
    Abstract: Provided are a negative electrode active material including a three-dimensional composite. The three-dimensional composite includes secondary particles containing a silicon carbide-based (SiCx, 0<x?1) nanosheet having a bent portion and amorphous carbon. Also provided are a method of producing the same, and a negative electrode and a lithium secondary battery including the negative electrode active material.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: April 9, 2024
    Assignees: SK On Co., Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Eunjun Park, Joon-Sup Kim, Jaekyung Sung, Yoon Kwang Lee, Tae Yong Lee, Jae Phil Cho
  • Patent number: 11917907
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: February 27, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
  • Patent number: 11913133
    Abstract: The present invention relates to a method of manufacturing polycrystalline silicon ingot using a crucible in which an oxygen exhaust passage is formed by single crystal or polycrystalline rods, the method including the steps of: manufacturing the single crystal or polycrystalline silicon rods each having the shape of a quadrilateral pillar; putting the single crystal or polycrystalline quadrilateral pillar-shaped silicon rods into the crucible in such a manner as to be arranged close to one another along the inner peripheral surface of the crucible to thus form a space portion inside the single crystal or polycrystalline silicon rods, into which silicon chunks are put, and the oxygen exhaust passages between the inner peripheral surface of the crucible and the respective surfaces of the single crystal or polycrystalline silicon rods oriented toward the inner peripheral surface of the crucible; putting the silicon chunks into the space portion of the crucible; and melting and crystallizing the silicon chunks.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: February 27, 2024
    Assignee: Lintech Corporation
    Inventors: Ho Jung You, Dong Nam Shin, Sei Kwang Oh, Jun Seok Lee, Sun Bin Yum, Tae-Woo Kang
  • Publication number: 20240033877
    Abstract: Apparatus and method for removing material from the susceptor of a batch processing chamber are described. The apparatus comprises a polishing tool including a rotatable platen positioned above the susceptor. A method comprises contacting material deposited on the susceptor with the rotatable platen to remove the material from the susceptor.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 1, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Vijayabhaskara Venkatagiriyappa, Nitin Bhargav, Tae Kwang Lee
  • Patent number: 11826873
    Abstract: Apparatus and method for removing material from the susceptor of a batch processing chamber are described. The apparatus comprises a polishing tool including a rotatable platen positioned above the susceptor. A method comprises contacting material deposited on the susceptor with the rotatable platen to remove the material from the susceptor.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: November 28, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Vijayabhaskara Venkatagiriyappa, Nitin Bhargav, Tae Kwang Lee
  • Publication number: 20220055179
    Abstract: Apparatus and method for removing material from the susceptor of a batch processing chamber are described. The apparatus comprises a polishing tool including a rotatable platen positioned above the susceptor. A method comprises contacting material deposited on the susceptor with the rotatable platen to remove the material from the susceptor.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Vijayabhaskara Venkatagiriyappa, Nitin Bhargav, Tae Kwang Lee