Patents by Inventor Yasuhiro Kinari

Yasuhiro Kinari 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).

  • Cast steel and steel material with excellent workability, method for processing molten steel therefor and method for manufacturing the cast steel and steel material
    Patent number: 6918969
    Abstract: A cast steel with excellent workability, characterized in that not less than 60% of the total cross section thereof is occupied by equiaxed crystals, the diameters (mm) of which satisfy the following formula: D<1.2X1/3+0.75, wherein D designates each diameter (mm) of equiaxed crystals in terms of internal structure in which the crystal orientations are identical, and X the distance (mm) from the surface of the cast steel. The cast steel and the steel material obtained by processing the cast steel have very few surface flaws and internal defects.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: July 19, 2005
    Assignee: Nippon Steel Corporation
    Inventors: Masafumi Zeze, Takashi Morohoshi, Ryusuke Miura, Shintaro Kusunoki, Yasuhiro Kinari, Masayuki Abe, Hiroshi Sugano, Kenichiro Miyamoto, Masaharu Oka, Yuji Koyama
  • Cast steel piece and steel product excellent in forming characteristics and method for treatment of molted steel therefor and method for production thereof
    Patent number: 6585799
    Abstract: A cast steel with excellent workability, characterized in that not less than 60% of the total cross section thereof is occupied by equiaxed crystals, the diameters (mm) of which satisfy the following formula: D<1.2X1/3+0.75, wherein D designates each diameter (mm) of equiaxed crystals in terms of internal structure in which the crystal orientations are identical, and X the distance (mm) from the surface of the cast steel. The cast steel and the steel material obtained by processing the cast steel have very few surface flaws and internal defects.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: July 1, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Masafumi Zeze, Takashi Morohoshi, Ryusuke Miura, Shintaro Kusunoki, Yasuhiro Kinari, Masayuki Abe, Hiroshi Sugano, Kenichiro Miyamoto, Masaharu Oka, Yuji Koyama
  • Cast steel and steel material with excellent workability, method for processing molten steel therefor and method for manufacturing the cast steel and steel material
    Publication number: 20030015260
    Abstract: A cast steel with excellent workability, characterized in that not less than 60% of the total cross section thereof is occupied by equiaxed crystals, the diameters (mm) of which satisfy the following formula:
    Type: Application
    Filed: August 16, 2002
    Publication date: January 23, 2003
    Applicant: Nippon Steel Corporation
    Inventors: Masafumi Zeze, Takashi Morohoshi, Ryusuke Miura, Shintaro Kusunoki, Yasuhiro Kinari, Masayuki Abe, Hiroshi Sugano, Kenichiro Miyamoto, Masaharu Oka, Yuji Koyama