Patents by Inventor Yu Chan Kim

Yu Chan 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).

  • Cu-based amorphous alloy composition
    Patent number: 7147727
    Abstract: The present invention relates to a Cu-based amorphous alloy composition having a chemical composition represented by the following general formula, by atomic %: Cu100-a-b-c-dZraAlb(M1)c(M2)d, where a, b, c and d satisfy the formulas of 36?a?49, 1?b?10, 0?c?10, and 0?d?5, respectively, and c and d are not zero at the same time, and M1, the 4th element added to a ternary alloy of Cu—Zr—Al, is one metal element selected from the group consisting of Nb, Ti, Be and Ag, and M2, the 5th element added to the ternary alloy of the Cu—Zr—Al, is one amphoteric element or non-metal element selected from the group consisting of Sn and Si.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: December 12, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Yu Chan Kim, Eric Fleury, Ki Bae Kim, Hyun Kwang Seok
  • Cu-based amorphous alloy composition
    Publication number: 20050211340
    Abstract: The present invention relates to a Cu-based amorphous alloy composition having a chemical composition represented by the following general formula, by atomic %: Cu100-a-b-c-dZraAlb(M1)c(M2)d, where a, b, c and d satisfy the formulas of 36?a?49, 1?b?10, 0?c?10, and 0?d?5, respectively, and c and d are not zero at the same time, and M1, the 4th element added to a ternary alloy of Cu—Zr—Al, is one metal element selected from the group consisting of Nb, Ti, Be and Ag, and M2, the 5th element added to the ternary alloy of the Cu—Zr—Al, is one amphoteric element or non-metal element selected from the group consisting of Sn and Si.
    Type: Application
    Filed: June 25, 2004
    Publication date: September 29, 2005
    Applicant: Korea Institute of Science and Technology
    Inventors: Yu Chan Kim, Eric Fleury, Ki Bae Kim, Hyun Kwang Seok
  • Cu-based amorphous matrix composite materials containing high fusion point element and production method thereof
    Publication number: 20040256031
    Abstract: In Cu-based bulk amorphous matrix composite materials, comprising a Cu-based amorphous alloy containing high fusion point element(s) selected from a group of Ta, W or combination thereof, wherein the high fusion point element(s) has(have) a shape of crystalline grain and is(are) dispersed around a Cu-based amorphous matrix.
    Type: Application
    Filed: August 14, 2003
    Publication date: December 23, 2004
    Applicant: Korea Institute of Science and Technology
    Inventors: Yu Chan Kim, Jae Chul Lee, Do Hyang Kim