Patents by Inventor Saburou Nagano

Saburou Nagano 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: 7955578
    Abstract: To provide a method and apparatus for treating a waste gas containing fluorine-containing compounds, according to which PFCs can be decomposed efficiently even at low temperature, and moreover fluorine from the product of the decomposition can be recovered for reuse efficiently. An embodiment of the present invention relates to a method of treating a gas containing a fluorine-containing compound, comprising contacting the gas with a treatment agent comprising a mixture of aluminum hydroxide and calcium hydroxide.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: June 7, 2011
    Assignee: Ebara Corporation
    Inventors: Yoichi Mori, Tadakazu Nishikawa, Masaaki Osato, Saburou Nagano, Yoshihiro Tanabe
  • Patent number: 7578867
    Abstract: A ceramic sintered product which comprises a first hard phase containing a nitride of titanium, a second hard phase containing at least one of alumina and zirconia, and a binding phase containing nickel; and a method for producing the ceramic sintered product. The ceramic sintered product is lightweight and exhibits good abrasion resistance in a wet atmosphere, and further can be produced at a low cost.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 25, 2009
    Assignee: Kyocera Corporation
    Inventors: Kenichi Hamamura, Saburou Nagano
  • Publication number: 20070264188
    Abstract: To provide a method and apparatus for treating a waste gas containing fluorine-containing compounds, according to which PFCs can be decomposed efficiently even at low temperature, and moreover fluorine from the product of the decomposition can be recovered for reuse efficiently. An embodiment of the present invention relates to a method of treating a gas containing a fluorine-containing compound, comprising contacting the gas with a treatment agent comprising a mixture of aluminum hydroxide and calcium hydroxide.
    Type: Application
    Filed: March 18, 2005
    Publication date: November 15, 2007
    Applicant: EBARA CORPORATION
    Inventors: Yoichi Mori, Tadakazu Nishikawa, Masaaki Osato, Saburou Nagano, Yoshihiro Tanabe
  • Publication number: 20070044588
    Abstract: A ceramic sintered product which comprises a first hard phase containing a nitride of titanium, a second hard phase containing at least one of alumina and zirconia, and a binding phase containing nickel; and a method for producing the ceramic sintered product. The ceramic sintered product is lightweight and exhibits good abrasion resistance in a wet atmosphere, and further can be produced at a low cost.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 1, 2007
    Applicant: KYOCERA CORPORATION
    Inventors: Kenichi Hamamura, Saburou Nagano
  • Patent number: 5571611
    Abstract: Disclosed is a composite ceramic sintered material comprising a surface layer of a composition which contains the silicon nitride and carbon, and an internal portion of the silicon carbide or a combination of the silicon carbide, silicon nitride and carbon, the content of carbon or the content of the silicon nitride being greater in the surface layer than in the internal portion.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Kyocera Corporation
    Inventors: Saburou Nagano, Shuichi Tateno, Kouichi Kamitubo, Kenichi Tajima, Masahito Nakanishi
  • Patent number: 5462813
    Abstract: Disclosed is a composite ceramic sintered material comprising a surface layer of a composition which contains the silicon nitride and carbon, and an internal portion of the silicon carbide or a combination of the silicon carbide, silicon nitride and carbon, the content of carbon or the content of the silicon nitride being greater in the surface layer than in the internal portion.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: October 31, 1995
    Assignee: Kyocera Corporation
    Inventors: Saburou Nagano, Shuichi Tateno, Kouichi Kamitubo, Kenichi Tajima, Masahito Nakanishi