Patents by Inventor Atsushi Sugihashi

Atsushi Sugihashi 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).

  • Publication number: 20240344857
    Abstract: A flow rate measurement system being a flow rate measurement system that measures a flow rate of molten metal flowing through a hollow portion of a pipe includes an excitation coil that generates a magnetic field so as to intersect with the molten metal flowing through the hollow portion of the pipe; current supply processor circuitry that supplies an alternating exciting current to the excitation coil; a detector that detects a signal based on a magnetic field generated from the excitation coil by an alternating exciting current flowing through the excitation coil or a time variation in the magnetic field; and flow rate deriving processor circuitry that derives the flow rate of the molten metal based on the signal detected by the detector, wherein the pipe is arranged between the excitation coil and the detector, and a magnetic field that reaches the detector across the pipe is generated from the excitation coil.
    Type: Application
    Filed: October 29, 2021
    Publication date: October 17, 2024
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kenji UMETSU, Atsushi SUGIHASHI, Hiroshi HARADA
  • Patent number: 11780026
    Abstract: The welding operation monitoring system includes an image capturing device that is disposed on a side opposite to a side to which the plasma flow is supplied out of a pipe inside and a pipe outside of the strip-shaped steel sheet formed in a tubular shape, and is configured to capture a color image including a plasma flow over the V-shaped region; and a welding operation monitoring device that is configured to generate a specific color component image obtained by extracting a specific color component from the color image, and specifies a V-shaped display region, which is a region corresponding to the V-shaped region within the color image, on the basis of the V-shaped region shown in the specific color component image, thereby analyzing a state of the welding operation.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: October 10, 2023
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Atsushi Sugihashi, Kotaro Watanabe, Yoshihiro Hashimoto
  • Publication number: 20200246906
    Abstract: The welding operation monitoring system includes an image capturing device that is disposed on a side opposite to a side to which the plasma flow is supplied out of a pipe inside and a pipe outside of the strip-shaped steel sheet formed in a tubular shape, and is configured to capture a color image including a plasma flow over the V-shaped region; and a welding operation monitoring device that is configured to generate a specific color component image obtained by extracting a specific color component from the color image, and specifies a V-shaped display region, which is a region corresponding to the V-shaped region within the color image, on the basis of the V-shaped region shown in the specific color component image, thereby analyzing a state of the welding operation.
    Type: Application
    Filed: January 22, 2018
    Publication date: August 6, 2020
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Atsushi SUGIHASHI, Kotaro WATANABE, Yoshihiro HASHIMOTO
  • Patent number: 9464611
    Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: October 11, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Atsushi Sugihashi, Koji Hirano, Yasushi Hasegawa
  • Patent number: 8794215
    Abstract: The present invention provides a method of producing a common rail having a common rail body and a holder which include chemical components of 0.01-0.3 mass % of C, 0.01-0.5 mass % of Si, 0.01-3.0 mass % of Mn, 0.0003-0.01 mass % of B, 0.001-0.01 mass % of N, over 0.01-0.5 mass % of Al, 0.01-0.05 mass % of Ti, P limited to 0.03 mass % or less, S limited to 0.01 mass % or less, O limited to 0.01 mass % or less, a total content of As, Sn, Sb, Pb, and Zn limited to 0.015 mass % or less, the balance including Fe and inevitable impurities, in which the TLB value is 0.001% or more, the method including: inserting an insert metal; performing liquid phase diffusion bonding; performing laser-peening; and removing a surface layer.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: August 5, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Koji Hirano, Atsushi Sugihashi, Hirofumi Imai, Yasushi Hasegawa
  • Publication number: 20130160743
    Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe.
    Type: Application
    Filed: January 9, 2013
    Publication date: June 27, 2013
    Applicant: Nippon Steel Corporation
    Inventors: ATSUSHI SUGIHASHI, KOJI HIRANO, YASUSHI HASEGAWA
  • Patent number: 8354613
    Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe. The steel is used for liquid phase diffusion bonding.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: January 15, 2013
    Assignee: Nippon Steel Corporation
    Inventors: Atsushi Sugihashi, Koji Hirano, Yasushi Hasegawa
  • Publication number: 20110005493
    Abstract: The present invention provides a method of producing a common rail having a common rail body and a holder which include chemical components of 0.01-0.3 mass % of C, 0.01-0.5 mass % of Si, 0.01-3.0 mass % of Mn, 0.0003-0.01 mass % of B, 0.001-0.01 mass % of N, over 0.01-0.5 mass % of Al, 0.01-0.05 mass % of Ti, P limited to 0.03 mass % or less, S limited to 0.01 mass % or less, O limited to 0.01 mass % or less, a total content of As, Sn, Sb, Pb, and Zn limited to 0.015 mass % or less, the balance including Fe and inevitable impurities, in which the TLB value is 0.001% or more, the method including: inserting an insert metal; performing liquid phase diffusion bonding; performing laser-peening; and removing a surface layer.
    Type: Application
    Filed: March 5, 2010
    Publication date: January 13, 2011
    Inventors: Koji Hirano, Atsushi Sugihashi, Hirofumi Imai, Yasushi Hasegawa
  • Publication number: 20100055490
    Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe. The steel is used for liquid phase diffusion bonding.
    Type: Application
    Filed: November 12, 2008
    Publication date: March 4, 2010
    Inventors: Atsushi Sugihashi, Koji Hirano, Yasushi Hasegawa
  • Patent number: 7230968
    Abstract: A semiconductor laser device including a laser element stack array emitting a two-dimensional array shaped group of laser beams consisting of rows of laser beams arranged linearly in parallel in a broken line configuration and optical elements arranged in front of the array, receiving rows of laser beams bent and collimated in a direction substantially perpendicular to the orientation of the broken line configuration. Laser beams are emitted from emitters or groups of emitters and are rotated by right angles so as to convert the laser beams to a plurality of rows aligned in parallel in an approximate ladder rung configuration and the distance between center axes of the rows of laser beams is shortened to condense the laser beams by converting them to a group of laser beams emitted from a common object and thereby making all laser beams converge to a single image.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: June 12, 2007
    Assignee: Nippon Steel Corporation
    Inventors: Hirofumi Imai, Naoya Hamada, Motoi Kido, Tatsuhiko Sakai, Atsushi Sugihashi, Hideyuki Hamamura, Satoshi Yamaguchi
  • Publication number: 20050063435
    Abstract: A semiconductor laser device including a laser element stack array emitting a two-dimensional array shaped group of laser beams consisting of rows of laser beams arranged linearly in parallel in a broken line configuration and optical elements arranged in front of the array, receiving rows of laser beams bent and collimated in a direction substantially perpendicular to the orientation of the broken line configuration. Laser beams are emitted from emitters or groups of emitters and are rotated by right angles so as to convert the laser beams to a plurality of rows aligned in parallel in an approximate ladder rung configuration and the distance between center axes of the rows of laser beams is shortened to condense the laser beams by converting them to a group of laser beams emitted from a common object and thereby making all laser beams converge to a single image.
    Type: Application
    Filed: March 15, 2004
    Publication date: March 24, 2005
    Inventors: Hirofumi Imai, Naoya Hamada, Motoi Kido, Tatsuhiko Sakai, Atsushi Sugihashi, Hideyuki Hamamura, Satoshi Yamaguchi
  • Patent number: 5994665
    Abstract: Sheet bars are effectively joined while they are traveling and subjected to continuous hot rolling without causing defects in quality and without requiring large expensive apparatus such as a swing roller etc.The present invention is to provide a continuous hot rolling method and apparatus in which the tail of a preceding sheet bar is butted to the top of a succeeding sheet bar between the rough and finishing mills on a continuous hot rolling line, and the butted portion is welded from the upper surface of the sheet bars by means of laser beam or plasma arc while the sheet bars are traveling.According to the present invention, it is possible to join sheet bars from the upper surface in a short period of time without stopping the sheet bars and without causing splashes and burrs, before the sheet bars are subjected to continuous finish rolling.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 30, 1999
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Nishibayashi, Masahiro Ohara, Katsuhiro Minamida, Tadatsugu Yoshida, Rokuro Kohno, Atsushi Sugihashi
  • Patent number: 5814787
    Abstract: Sheet bars are effectively joined while they are traveling and subjected to continuous hot rolling without causing defects in quality and without requiring large expensive apparatus such as a swing roller etc.The present invention is to provide a continuous hot rolling method and apparatus in which the tail of a preceding sheet bar is butted to the top of a succeeding sheet bar between the rough and finishing mills on a continuous hot rolling line, and the butted portion is welded from the upper surface of the sheet bars by means of laser beam or plasma arc while the sheet bars are traveling.According to the present invention, it is possible to join sheet bars from the upper surface in a short period of time without stopping the sheet bars and without causing splashes and burrs, before the sheet bars are subjected to continuous finish rolling.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: September 29, 1998
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Nishibayashi, Masahiro Ohara, Katsuhiro Minamida, Tadatsugu Yoshida, Rokuro Kohno, Atsushi Sugihashi
  • Patent number: 5635306
    Abstract: The present invention is a honeycomb panel comprising metal face sheets respectively disposed on upper and lower faces of said honeycomb core characterized in that said honeycomb panel has a metal side plate disposed on at least one side face thereof, for mutually connecting honeycomb panels to each other, and a process for producing a honeycomb panel, said process characterized by comprising the steps of: welding a corrugated honeycomb core at an end face of its corrugation to a side plate along the end face of said corrugation; welding the honeycomb core at top portions of its corrugation to an upper face sheet from the side of the honeycomb core by means of an energy beam; welding bottom portions of the corrugation of the honeycomb core to a lower face sheet from the side of the face sheet by means of an energy beam; and welding the face sheets to the side plate before or after welding the honeycomb core to the face sheets.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 3, 1997
    Assignee: Nippon Steel Corporation
    Inventors: Katsuhiro Minamida, Masashi Oikawa, Atsushi Sugihashi, Akira Ishibashi, Mamoru Takeda
  • Patent number: 5306890
    Abstract: A method of producing a corrugated metal sheeting including a flat metal sheet and a corrugated metal sheet joined to each other, which sheeting is used to produce a carrier or honeycomb structure for carrying catalytic agents used for purifying exhaust gases from, for example, an internal combustion engine of an automobile. In the method, the flat and corrugated metal sheets are brought together so that corrugations of the corrugated metal sheet are successively brought into contact with the flat metal sheet in such a manner that the corrugated metal sheet is freely movable to thereby release resilient stresses therefrom, and a laser beam is incident on a contact line between the flat metal sheet and each of the corrugations of the corrugated metal sheet, to thereby weld them to each other.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: April 26, 1994
    Assignee: Nippon Steel Corporation
    Inventors: Katsuhiro Minamida, Motoi Kido, Atsushi Sugihashi, Masahi Oikawa, Naoya Hamada, Akira Ishibashi
  • Patent number: 5116688
    Abstract: A core strip for a honeycomb core panel is composed of a metal strip shaped into a corrugated configuration and having continuous alternate convex and concave portions of identical shape, each of the convex portions being defined by a plateau portion and a pair of inclined portions, and each of the concave portions being defined by a bottom portion and the pair of inclined portions. The inclined portions interconnect the plateau portion and the bottom portion. At the one side edge of the shaped metal strip, the plateau portion and the inclined portions have respective first flanges disposed perpendicular to the metal strip and directed away from a convex surface of the convex portion. At the other side edge of the shaped metal strip, the bottom portion and the inclined portion have respective second flanges disposed perpendicularly to the metal strip and directed away from a convex surface of the concave portion.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: May 26, 1992
    Assignee: Nippon Steel Corporation
    Inventors: Katsuhiro Minamida, Atsushi Sugihashi, Motoi Kido