Patents by Inventor Takashi Yonekura

Takashi Yonekura 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: 20200346264
    Abstract: A shape measurement device for a metal plate includes a plurality of distance sensors including one or more first sensors disposed on a first side and a plurality of second sensors disposed on a second side, of the metal plate with respect to a thickness direction of the metal plate, across a pass line of the metal plate. The one or more first sensors are positioned, with respect to a width direction of the metal plate, between a pair of second sensors disposed adjacent to each other in the width direction.
    Type: Application
    Filed: November 24, 2017
    Publication date: November 5, 2020
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi YONEKURA, Masao TAMBARA, Masashi YOSHIKAWA
  • Patent number: 10815559
    Abstract: Provided are a molten metal plating facility and a method with which degradation in the surface quality of a strip can be prevented by preventing the adhesion of splashes.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: October 27, 2020
    Assignee: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi Yonekura, Masao Tambara, Masashi Yoshikawa, Shinji Nanba
  • Publication number: 20200261957
    Abstract: A warpage correction apparatus for a metal strip to be used in a continuous plating facility for the metal strip includes a sink roll disposed downstream of a fixed roll, configured to change the conveying direction of the metal strip, with respect to a conveying direction of the metal strip and inside a molten metal pot for plating, and a correction roll disposed between the fixed roll and the sink roll and configured to correct warpage of the metal strip. A ratio D3/D1 of a diameter D3 of the sink roll to a diameter D1 of the fixed roll is not less than 1.5.
    Type: Application
    Filed: November 30, 2017
    Publication date: August 20, 2020
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi YONEKURA, Masao TAMBARA, Masashi YOSHIKAWA
  • Publication number: 20200047234
    Abstract: A crossbow correction device 16 for correcting crossbow of a steel strip S by a magnetic force during conveyance includes a plurality of electromagnets 57a to 57d, 67a to 67d arranged in a strip width direction of the steel strip S and facing each other so as to sandwich the steel strip S in a strip thickness direction, a moving mechanism 51 to 54, 61 to 64 capable of moving the electromagnets 57a to 57d, 67a to 67d relative to the steel strip S, and a controller 17 configured to operate the moving mechanism 51 to 54, 61 to 64, based on a current value flowing through the electromagnets 57a to 57d, 67a to 67d.
    Type: Application
    Filed: February 20, 2017
    Publication date: February 13, 2020
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi YONEKURA, Masao TAMBARA, Masashi YOSHIKAWA
  • Publication number: 20190390315
    Abstract: When a portion for measuring the plating adhesion amount reaches an upstream side position, plating adhesion amount estimation values are calculated by using a plating adhesion amount estimation expression at positions away from a position that faces the distance sensors, that is, the upstream side position, by strip-width direction distances, of the surfaces of the steel strip. When the portion for measuring the plating adhesion amount reaches a downstream side position, the strip-width direction distances of the plating adhesion amount meters are matched to the strip-width direction distances, and the plating adhesion amount actual measurement values are obtained. The plating adhesion amount estimation expression is corrected on the basis of the differences between the plating adhesion amount estimation values and the plating adhesion amount actual measurement values. Accordingly, the control accuracy of the plating adhesion amount is improved.
    Type: Application
    Filed: April 14, 2017
    Publication date: December 26, 2019
    Applicant: Primetals Technologies Japan, Ltd.
    Inventors: Takashi YONEKURA, Masao TAMBARA, Masashi YOSHIKAWA, Shinya KANEMORI, Kazuki YOSHIDA
  • Publication number: 20190370995
    Abstract: A strip edge detection device includes a line illumination 16 disposed so as to face a plated strip 1 and configured to emit a marking light extending along the strip width direction to the vicinity of an edge 1a of the plated strip 1, a camera 17 configured to capture an image of a region including the edge 1a of the plated strip 1 and a regular reflected light 16A of the marking light reflected by the plated strip 1, an analysis unit 18A configured to determine the edge position x and calculate real coordinates of the edge position x, based on the image I captured by the camera 17, a camera driving unit 19 configured to move the camera 17 along the strip width direction, and a control unit 18B configured to control the camera driving mechanism 19 so that the edge position x is centered in the image I in the strip width direction, based on the edge position x determined by the analysis unit 18A.
    Type: Application
    Filed: February 20, 2017
    Publication date: December 5, 2019
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi YONEKURA, Masao TAMBARA, Masashi YOSHIKAWA, Masahiro YAMADA
  • Publication number: 20180251879
    Abstract: Provided are a molten metal plating facility and a method with which degradation in the surface quality of a strip can be prevented by preventing the adhesion of splashes.
    Type: Application
    Filed: February 20, 2017
    Publication date: September 6, 2018
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi YONEKURA, Masao TAMBARA, Masashi YOSHIKAWA, Shinji NANBA
  • Patent number: 9951407
    Abstract: The present invention reduces the amount of gas consumed, edge-overcoating and splashing and adjusts plating thickness with high precision by providing a wiping nozzle with: thin plates, which are each inserted into a lip from the entrances to the lip for a specified distance to the inside of the two ends of the lip in the sheet width direction in order to seal the gas jet where the thin plates are inserted, and which are movable in the sheet width direction of the lip; and ropes extending in the sheet width direction of the lip so as to track the movements of the thin plates and seal the gas jet in a specified range.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 24, 2018
    Assignee: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi Yonekura, Masao Tanbara, Masashi Yoshikawa
  • Publication number: 20170114437
    Abstract: The present invention reduces the amount of gas consumed, edge-overcoating and splashing and adjusts plating thickness with high precision by providing a wiping nozzle with: thin plates, which are each inserted into a lip from the entrances to the lip for a specified distance to the inside of the two ends of the lip in the sheet width direction in order to seal the gas jet where the thin plates are inserted, and which are movable in the sheet width direction of the lip; and ropes extending in the sheet width direction of the lip so as to track the movements of the thin plates and seal the gas jet in a specified range.
    Type: Application
    Filed: April 23, 2015
    Publication date: April 27, 2017
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi YONEKURA, Masao TANBARA, Masashi YOSHIKAWA
  • Publication number: 20170009326
    Abstract: Each of the moving blocks of the plate crossbow correction device includes distance sensors and electromagnets, and plate crossbow is corrected by adjusting electromagnetic force by the electromagnets in accordance with distances to strips. The moving blocks are movable in the horizontal direction and ratios of moving distances of the moving blocks are adjusted to be constant when seen from a central position.
    Type: Application
    Filed: July 1, 2016
    Publication date: January 12, 2017
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takashi YONEKURA, Masao TANBARA, Masashi YOSHIKAWA
  • Patent number: 8616148
    Abstract: In a gas wiping apparatus for blowing a gas on the front side and the back side of a strip, which exits from a hot-dip plating bath and travels upward, from wiping nozzles to adjust the amount of a plating deposit, the wiping nozzles are supported to be linearly movable beyond the width of the nozzles in the plate width direction of the strip.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: December 31, 2013
    Assignee: Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventors: Hironori Fujioka, Takashi Yonekura, Masashi Yoshikawa
  • Patent number: 8429834
    Abstract: In a gas wiping apparatus which blows gas through a wiping nozzle onto front and rear surfaces of a steel plate going out from a molten metal coating pot and running upward and which thereby controls a deposit mass, the wiping nozzle is separated into upper and lower lips, blocking faces partially closing a gas supply channel are formed in the upper and lower lips at vertically different positions on the opposite sides from each other in a gas outlet width direction, and the upper and lower lips are provided in such a manner as to be movable in a width direction of the steel plate.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: April 30, 2013
    Assignee: Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventors: Hironori Fujioka, Takashi Yonekura, Masashi Yoshikawa
  • Publication number: 20100282161
    Abstract: In a gas wiping apparatus for blowing a gas on the front side and the back side of a strip, which exits from a hot-dip plating bath and travels upward, from wiping nozzles to adjust the amount of a plating deposit, the wiping nozzles are supported to be linearly movable beyond the width of the nozzles in the plate width direction of the strip.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 11, 2010
    Applicant: MITSUBISHI-HITACHI METALS MACHINERY, INC.
    Inventors: Hironori FUJIOKA, Takashi Yonekura, Masashi Yoshikawa
  • Publication number: 20100224120
    Abstract: In a gas wiping apparatus which blows gas through a wiping nozzle onto front and rear surfaces of a steel plate going out from a molten metal coating pot and running upward and which thereby controls a deposit mass, the wiping nozzle is separated into upper and lower lips, blocking faces partially closing a gas supply channel are formed in the upper and lower lips at vertically different positions on the opposite sides from each other in a gas outlet width direction, and the upper and lower lips are provided in such a manner as to be movable in a width direction of the steel plate.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 9, 2010
    Applicant: Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventors: Hironori FUJIOKA, Takashi Yonekura, Masashi Yoshikawa