Patents by Inventor Zenji Horita

Zenji Horita 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: 8394214
    Abstract: The present invention provides a method for processing a metal body which can turn a metal structure of the metal body into a finer grain structure thus obtaining the high strength and the high ductility. In a method or an apparatus for processing a metal body which turns the metal structure of the metal body into the finer grain structure by forming a low deformation resistance region where the deformation resistance is locally lowered in the metal body and by deforming the low deformation resistance region by shearing, using a non-low deformation resistance region forming means which forms a non-low deformation resistance region by increasing the deformation resistance which is lowered in the low deformation resistance region, the non-low deformation resistance region is formed along the low deformation resistance region.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: March 12, 2013
    Assignee: Rinascimetalli Ltd.
    Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Patent number: 7637136
    Abstract: A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: December 29, 2009
    Assignee: Rinascimetalli Ltd.
    Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Patent number: 7574888
    Abstract: A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: August 18, 2009
    Assignee: Rinascimetalli Ltd.
    Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Patent number: 7559221
    Abstract: A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: July 14, 2009
    Assignee: Rinascimetalli Ltd.
    Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20090102104
    Abstract: The present invention provides a method for processing a metal body which can turn a metal structure of the metal body into a finer grain structure thus obtaining the high strength and the high ductility. In a method or an apparatus for processing a metal body which turns the metal structure of the metal body into the finer grain structure by forming a low deformation resistance region where the deformation resistance is locally lowered in the metal body and by deforming the low deformation resistance region by shearing, using a non-low deformation resistance region forming means which forms a non-low deformation resistance region by increasing the deformation resistance which is lowered in the low deformation resistance region, the non-low deformation resistance region is formed along the low deformation resistance region.
    Type: Application
    Filed: December 12, 2008
    Publication date: April 23, 2009
    Applicant: RINASCIMETALLI Ltd.
    Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20090101239
    Abstract: The present invention provides a method for processing a metal body which can turn a metal structure of the metal body into a finer grain structure thus obtaining the high strength and the high ductility. In a method or an apparatus for processing a metal body which turns the metal structure of the metal body into the finer grain structure by forming a low deformation resistance region where the deformation resistance is locally lowered in the metal body and by deforming the low deformation resistance region by shearing, using a non-low deformation resistance region forming means which forms a non-low deformation resistance region by increasing the deformation resistance which is lowered in the low deformation resistance region, the non-low deformation resistance region is formed along the low deformation resistance region.
    Type: Application
    Filed: December 12, 2008
    Publication date: April 23, 2009
    Applicant: RINASCIMETALLI Ltd.
    Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Patent number: 7389668
    Abstract: The present invention provides a metal molding method, a metal molding machine and a metal molded body, wherein using a mold in which a molding space having a predetermined shape and a metal body lead-in space which is communicated with the molding space are formed, a metal body which is inserted into the metal body lead-in space is fed into the molding space by applying a predetermined pressure thus forming a molded product having a predetermined shape. Particularly, the metal body is deformed by shearing when the metal body is fed to the molding space from the metal body lead-in space thus turning the metal structure of the metal body into the finer grain structure.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: June 24, 2008
    Assignee: Rinascimetalli Ltd.
    Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20080135813
    Abstract: The present invention provides a manufacturing method of a carbon nanotube composite which manufactures the carbon nanotube composite by integrally bonding a mixed powdery body which is formed by mixing a metal powdery body and carbon nanotubes. A mixed powdery body is pressurized in the uniaxial direction using the first mold and the second mold, and a strain stress is applied to the pressurized mixed powdery body in a non-heated state which applies no heat to the mixed powdery body from outside. The strain stress may be a stress generated by a rotational strain which is imparted to the mixed powdery body by rotating at least one mold of the first mold and the second mold with respect to another mold.
    Type: Application
    Filed: April 3, 2007
    Publication date: June 12, 2008
    Inventors: Kenji Kaneko, Tomoharu Tokunaga, Zenji Horita
  • Publication number: 20080110227
    Abstract: A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body.
    Type: Application
    Filed: December 19, 2007
    Publication date: May 15, 2008
    Applicants: RINASCIMETALLI Ltd.
    Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20080110226
    Abstract: A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body.
    Type: Application
    Filed: December 19, 2007
    Publication date: May 15, 2008
    Applicants: Katsuaki NAKAMURA, RINASCIMETALLI Ltd.
    Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20070018356
    Abstract: A hydraulic pressure molding device and a hydraulic pressure molding method for molding a molded body of a specified shape by holding a material plate by a first mold pressing the material plate with a pressurized liquid medium and a second mold in which a molding recessed surface of a specified shape is formed and pressing the material plate with the liquid medium to bring the material plate into contact with the molding recessed surface. The second mold comprises deformation resistance adjusting means locally differentiating the deformation resistance of the material plate. The deformation resistance adjusting means are formed of a local cooling means locally cooling the material plate and a local heating means locally heating the material plate. In addition, the deformation resistance adjusting means are formed movable forward and backward relative to the second mold.
    Type: Application
    Filed: August 27, 2004
    Publication date: January 25, 2007
    Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20060260378
    Abstract: A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body.
    Type: Application
    Filed: September 29, 2003
    Publication date: November 23, 2006
    Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20060248936
    Abstract: The present invention provides a metal molding method, a metal molding machine and a metal molded body, wherein using a mold in which a molding space (13) having a predetermined shape and a metal body lead-in space (12) which is communicated with the molding space are formed, a metal body which is inserted into the metal body lead-in space is fed into the molding space by applying a predetermined pressure thus forming a molded product having a predetermined shape. Particularly, the metal body is deformed by shearing when the metal body is fed to the molding space from the metal body lead-in space thus turning the metal structure of the metal body into the finer grain structure.
    Type: Application
    Filed: July 21, 2004
    Publication date: November 9, 2006
    Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
  • Publication number: 20060157168
    Abstract: The present invention provides a method for processing a metal body which can turn a metal structure of the metal body into a finer grain structure thus obtaining the high strength and the high ductility. In a method or an apparatus for processing a metal body which turns the metal structure of the metal body into the finer grain structure by forming a low deformation resistance region where the deformation resistance is locally lowered in the metal body and by deforming the low deformation resistance region by shearing, using a non-low deformation resistance region forming means which forms a non-low deformation resistance region by increasing the deformation resistance which is lowered in the low deformation resistance region, the non-low deformation resistance region is formed along the low deformation resistance region.
    Type: Application
    Filed: March 10, 2004
    Publication date: July 20, 2006
    Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko