Patents by Inventor Kousuke YANAGISAWA

Kousuke YANAGISAWA 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: 10625347
    Abstract: In a hard coating layer that contains at least any of a layer of a complex nitride or a complex carbonitride (composition formula: (Ti1-xAlx)(CyN1-y)) of chemically-vapor-deposited Ti and Al, a layer of a complex nitride or a complex carbonitride (composition formula: (Ti1-?-?Al?Mr?)(C?Ni1-?)) of Ti, Al, and Me, and a layer of a complex nitride or a complex carbonitride (composition formula: (Cr1-pAlp)(CqN1-q) of Cr and Al in a surface-coated cutting tool, some crystal grains that form the layer of a complex nitride or a complex carbonitride have cubic structures, and a predetermined average crystal grain misorientation and inclined angle frequency distribution are present in the crystal grains that have cubic structures.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: April 21, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Sho Tatsuoka, Kenichi Sato, Kousuke Yanagisawa, Shin Nishida
  • Patent number: 10618115
    Abstract: In this surface-coated cutting tool, a hard coating layer includes at least a layer of a complex nitride or complex carbonitride expressed by a composition formula: (Cr1-xAlx)(CyN1-y) or a layer of a complex nitride or complex carbonitride expressed by a composition formula: (Ti1-?-?Al?Me?)(C?N1-?), crystal grains configuring the layer of a complex nitride or complex carbonitride having an NaCl type face-centered cubic structure are present, and predetermined average crystal grain misorientation and inclined angle frequency distribution are present in the crystal grains having an NaCl type face-centered cubic structure.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: April 14, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Sho Tatsuoka, Kenichi Sato, Kousuke Yanagisawa, Shin Nishida
  • Publication number: 20190358711
    Abstract: A surface-coated cutting tool including at least a TiAlCN layer, in which the layer is expressed by a composition formula: (Ti1-XAlX)(CYN1-Y), an average content ratio X of Al and an average content ratio Y of C (here, X and Y are atomic ratios) satisfy 0.60?X?0.95 and 0?Y?0.005, respectively, an average content ratio Z of Cl in the total amount of atoms configuring the TiAlCN phase (here, Z is an atomic ratio) satisfies 0.0001?Z?0.004, plane spacings d(111) and d(200) are respectively calculated from X-ray diffraction spectra of (111) plane and (200) plane of crystal grains having a NaCl type face-centered cubic structure in the TiAlCN layer measured by using an X-ray diffraction device, and an absolute value ?A=|A(111)?A(200)| defined as A(111)=31/2d(111) and A(200)=2d(200) satisfies 0.007 ???A?0.05.
    Type: Application
    Filed: January 17, 2018
    Publication date: November 28, 2019
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Takuya ISHIGAKI, Sho TATSUOKA, Kenichi SATO, Kousuke YANAGISAWA, Shin NISHIDA
  • Publication number: 20180311745
    Abstract: In this surface-coated cutting tool, a hard coating layer includes at least a layer of a complex nitride or complex carbonitride expressed by a composition formula: (Cr1-xAlx)(CyN1-y) or a layer of a complex nitride or complex carbonitride expressed by a composition formula: (Ti1-?-?Al?Me?)(C?N1-?), crystal grains configuring the layer of a complex nitride or complex carbonitride having an NaCl type face-centered cubic structure are present, and predetermined average crystal grain misorientation and inclined angle frequency distribution are present in the crystal grains having an NaCl type face-centered cubic structure.
    Type: Application
    Filed: October 31, 2016
    Publication date: November 1, 2018
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Sho TATSUOKA, Kenichi SATO, Kousuke YANAGISAWA, Shin NISHIDA
  • Publication number: 20180311742
    Abstract: In a hard coating layer that contains at least any of a layer of a complex nitride or a complex carbonitride (composition formula: (Ti1-xAlx)(CyN1-y)) of chemically-vapor-deposited Ti and Al, a layer of a complex nitride or a complex carbonitride (composition formula: (Ti1-?-?Al?Mr?)(C?Ni1-?)) of Ti, Al, and Me, and a layer of a complex nitride or a complex carbonitride (composition formula: (Cr1-pAlp)(CqN1-q) of Cr and Al in a surface-coated cutting tool, some crystal grains that form the layer of a complex nitride or a complex carbonitride have cubic structures, and a predetermined average crystal grain misorientation and inclined angle frequency distribution are present in the crystal grains that have cubic structures.
    Type: Application
    Filed: October 31, 2016
    Publication date: November 1, 2018
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Sho TATSUOKA, Kenichi SATO, Kousuke YANAGISAWA, Shin NISHIDA
  • Publication number: 20180154463
    Abstract: A coated tool has a hard coating layer including a layer of a complex nitride or complex carbonitride expressed by (Ti1-xAlx)(CyN1-y). A periodic concentration variation is present in crystal grains of a complex nitride or complex carbonitride having a NaCl type face-centered cubic structure in the layer. The periodic concentration variation direction includes a direction at 30 degrees or less with respect to a surface of a tool body. An area percentage of a periodic concentration variation of Ti and Al is 40% or more. The concentration variation period is 1 to 10 nm. A difference between an average of local maximums and an average of local minimums of a periodically varying amount x of Al is 0.01 to 0.1. Fine crystal grains having a hexagonal structure with an average grain size of 0.01 to 0.3 ?m are present at grain boundaries in 5% or less of the area.
    Type: Application
    Filed: May 25, 2016
    Publication date: June 7, 2018
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kousuke YANAGISAWA, Sho TATSUOKA, Kenichi SATO, Kenji YAMAGUCHI