Patents by Inventor Yuuji Sato

Yuuji Sato 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: 11427888
    Abstract: A sputtering target material contains one kind or two or more kinds selected from the group consisting of Ag, As, Pb, Sb, Bi, Cd, Sn, Ni, and Fe in a range of 5 massppm or more and 50 massppm or less, in terms of a total content; and a balance consisting of Cu and an inevitable impurity. In the sputtering target material, in a case in which an average crystal grain size calculated as an area average without twins is denoted by X1 (?m), and a maximum intensity of pole figure is denoted by X2, upon an observation with an electron backscatter diffraction method, Expression (1): 2500>19×X1+290×X2 is satisfied, a kernel average misorientation (KAM) of a crystal orientation measured by an electron backscatter diffraction method is 2.0° or less, and a relative density is 95% or more.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: August 30, 2022
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Satoru Mori, Satoshi Kumagai, U Tani, Yuuji Sato
  • Publication number: 20210010105
    Abstract: A sputtering target material contains one kind or two or more kinds selected from the group consisting of Ag, As, Pb, Sb, Bi, Cd, Sn, Ni, and Fe in a range of 5 massppm or more and 50 massppm or less, in terms of a total content; and a balance consisting of Cu and an inevitable impurity. In the sputtering target material, in a case in which an average crystal grain size calculated as an area average without twins is denoted by X1 (?m), and a maximum intensity of pole figure is denoted by X2, upon an observation with an electron backscatter diffraction method, Expression (1): 2500>19×X1+290×X2 is satisfied, a kernel average misorientation (KAM) of a crystal orientation measured by an electron backscatter diffraction method is 2.0° or less, and a relative density is 95% or more.
    Type: Application
    Filed: October 23, 2019
    Publication date: January 14, 2021
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Satoru Mori, Satoshi Kumagai, U Tani, Yuuji Sato
  • Patent number: 10889889
    Abstract: A high purity copper sputtering target material includes Cu at a purity of 99.99998 mass % or more excluding O, H, N and C, wherein an Al content is 0.005 mass ppm or less, a Si content is 0.05 mass ppm or less, an Fe content is 0.02 mass ppm or less, a S content is 0.03 mass ppm or less, Cl content is 0.1 mass ppm or less, n O content is 1 mass ppm or less, H content is 1 mass ppm or less, a N content is 1 mass ppm or less, and a C content is 1 mass ppm or less.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: January 12, 2021
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Satoru Mori, U Tani, Yuuji Sato, Fumitake Kikuchi, Isao Arai
  • Publication number: 20180237901
    Abstract: A high purity copper sputtering target material includes Cu at a purity of 99.99998 mass % or more excluding O, H, N and C, wherein an Al content is 0.005 mass ppm or less, a Si content is 0.05 mass ppm or less, an Fe content is 0.02 mass ppm or less, a S content is 0.03 mass ppm or less, Cl content is 0.1 mass ppm or less, n O content is 1 mass ppm or less, H content is 1 mass ppm or less, a N content is 1 mass ppm or less, and a C content is 1 mass ppm or less.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 23, 2018
    Inventors: Satoru Mori, U Tani, Yuuji Sato, Fumitake Kikuchi, Isao Arai