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).
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Patent number: 8394214Abstract: 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: GrantFiled: March 10, 2004Date of Patent: March 12, 2013Assignee: Rinascimetalli Ltd.Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Patent number: 7637136Abstract: 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: GrantFiled: September 29, 2003Date of Patent: December 29, 2009Assignee: Rinascimetalli Ltd.Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Patent number: 7574888Abstract: 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: GrantFiled: December 19, 2007Date of Patent: August 18, 2009Assignee: Rinascimetalli Ltd.Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Patent number: 7559221Abstract: 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: GrantFiled: December 19, 2007Date of Patent: July 14, 2009Assignee: Rinascimetalli Ltd.Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20090101239Abstract: 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: ApplicationFiled: December 12, 2008Publication date: April 23, 2009Applicant: RINASCIMETALLI Ltd.Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20090102104Abstract: 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: ApplicationFiled: December 12, 2008Publication date: April 23, 2009Applicant: RINASCIMETALLI Ltd.Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Patent number: 7389668Abstract: 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: GrantFiled: July 21, 2004Date of Patent: June 24, 2008Assignee: Rinascimetalli Ltd.Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20080135813Abstract: 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: ApplicationFiled: April 3, 2007Publication date: June 12, 2008Inventors: Kenji Kaneko, Tomoharu Tokunaga, Zenji Horita
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Publication number: 20080110227Abstract: 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: ApplicationFiled: December 19, 2007Publication date: May 15, 2008Applicants: RINASCIMETALLI Ltd.Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20080110226Abstract: 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: ApplicationFiled: December 19, 2007Publication date: May 15, 2008Applicants: Katsuaki NAKAMURA, RINASCIMETALLI Ltd.Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20070018356Abstract: 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: ApplicationFiled: August 27, 2004Publication date: January 25, 2007Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20060260378Abstract: 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: ApplicationFiled: September 29, 2003Publication date: November 23, 2006Inventors: Zenji Horita, Katsuaki Nakamura, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20060248936Abstract: 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: ApplicationFiled: July 21, 2004Publication date: November 9, 2006Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko
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Publication number: 20060157168Abstract: 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: ApplicationFiled: March 10, 2004Publication date: July 20, 2006Inventors: Katsuaki Nakamura, Zenji Horita, Koji Neishi, Michihiko Nakagaki, Kenji Kaneko