Patents by Inventor Jong-Bae Hwang

Jong-Bae Hwang 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).

  • NICKEL-BASED SUPERALLOY FOR DIFFUSION BONDING AND METHOD FOR DIFFUSION BONDING USING THE SAME
    Publication number: 20230002862
    Abstract: The present invention relates to a nickel-based superalloy for diffusion bonding, which includes a surface depletion layer in a state in which an aluminum (Al) or titanium (Ti) content is depleted, the surface depletion layer being formed to a depth of 50 ?m or less from a surface for diffusion bonding, and a method for diffusion bonding using the same.
    Type: Application
    Filed: September 5, 2022
    Publication date: January 5, 2023
    Inventors: In Jin SAH, Jong Bae HWANG, Eung Seon KIM, Min Hwan KIM
  • NICKEL-BASED SUPERALLOY FOR DIFFUSION BONDING AND METHOD FOR DIFFUSION BONDING USING THE SAME
    Publication number: 20210156004
    Abstract: The present invention relates to a nickel-based superalloy for diffusion bonding, which includes a surface depletion layer in a state in which an aluminum (Al) or titanium (Ti) content is depleted, the surface depletion layer being formed to a depth of 50 ?m or less from a surface for diffusion bonding, and a method for diffusion bonding using the same.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 27, 2021
    Inventors: In Jin SAH, Jong Bae Hwang, Eung Seon Kim, Min Hwan Kim
  • Structure for preventing the embezzlement and the see-through of the prepayment card
    Patent number: 6679970
    Abstract: A technique for preventing unauthorized access to a hidden code on a prepaid telephone card. A technique for preventing an undetected access to a hidden number or code on a lottery ticket, prepaid telephone card, game piece, or other type of item. A structure is provided to prevent the embezzlement and viewing of the hidden number on a prepaid card by attaching an opaque film label over the hidden number to conceal the hidden number, attaching a holographic image over the film label, and attaching a transparent film over the holographic image. The transparent film, holographic image, and film label must be removed in order to view the hidden code. When the transparent film, holographic image, and film label are removed, certain marks are left on the card which clearly demonstrate that the hidden number has been accessed.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: January 20, 2004
    Inventor: Jong-Bae Hwang
  • Structure for preventing the embezzlement and the see-through of the prepayment card
    Publication number: 20030029557
    Abstract: A technique for preventing unauthorized access to a hidden code on a prepaid telephone card. A technique for preventing an undetected access to a hidden number or code on a lottery ticket, prepaid telephone card, game piece, or other type of item. A structure is provided to prevent the embezzlement and viewing of the hidden number on a prepaid card by attaching an opaque film label over the hidden number to conceal the hidden number, attaching a holographic image over the film label, and attaching a transparent film over the holographic image. The transparent film, holographic image, and film label must be removed in order to view the hidden code. When the transparent film, holographic image, and film label are removed, certain marks are left on the card which clearly demonstrate that the hidden number has been accessed.
    Type: Application
    Filed: January 18, 2002
    Publication date: February 13, 2003
    Inventor: Jong-Bae Hwang