Patents by Inventor Yoshitake Kasubata

Yoshitake Kasubata 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: 9821428
    Abstract: A polishing apparatus is provided with a machining head that is supported to freely move in two horizontal directions; driving devices that enables the machining head to move; a polishing jig that is supported by the machining head to freely move in a vertical direction; a polishing member that is mounted on a lower end portion of the polishing jig; an air cylinder polishing jig moving device that moves the polishing jig and is capable of pressing the polishing member against a tube support plate; and a drive motor that is capable of rotating the polishing jig, thus, simplification of the structure is made possible.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: November 21, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshinobu Yoshikawa, Yoichi Ishigami, Yoshihiko Higashiguchi, Yoshitake Kasubata, Yuichi Sasaki
  • Patent number: 9468984
    Abstract: A broaching device is provided with puller heads (132,134) that hold tip portions of broaches (116) and are supported in a horizontally freely movable manner, main motors (136, 140) capable of moving the puller heads (132, 134), retriever heads (133,135) that hold base end portions of the broaches (116) and are supported in a horizontally freely movable manner, sub motors (138,142) capable of moving the retriever heads (133,135), and a control device (117) that enables the puller heads (132,134) and the retriever heads (133, 135) to be synchronized with each other and to move at a fixed speed by controlling the motors (136,138,140,142), whereby machining accuracy can be improved.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: October 18, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshitake Kasubata, Yoshihiko Higashiguchi, Yuichi Sasaki, Akio Kambe
  • Patent number: 9463494
    Abstract: A cleaning device of a porous plate for nuclear power including: cleaning tanks (72, 73) that is capable of storing a cleaning liquid therein and is capable of housing the porous plate (43) in an upright state; a rotation device (84) that is capable of rotating the porous plate (43) within the respective cleaning tanks (72, 73); and an ultrasonic wave oscillation device (111) that irradiates the porous plate (43) within the cleaning tanks (72, 73) with ultrasonic wave. Thus, it is possible to efficiently remove the adhered foreign substances.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: October 11, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoichi Ishigami, Masato Yamasaki, Yoshitake Kasubata, Yuichi Sasaki
  • Patent number: 9321110
    Abstract: The hole drilling process is for drilling a hole on a supported tube sheet by using a first drilling tool that can drill a hole with a diameter smaller than that of a mounting hole that is to become a target hole, and a second drilling tool that can drill a hole with a diameter equal to the diameter of the target hole, the process including: a temporary hole drilling step in which a temporary hole with a predetermined depth set beforehand is drilled by moving the first drilling tool to a drilled position set beforehand; a hole measuring step in which a distance (S) between an existing mounting hole and the temporary hole; a drilled position correcting step in which the drilled position is corrected based upon the distance (S) between the mounting hole and the temporary hole.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: April 26, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshitake Kasubata, Shigeru Okamoto, Yuichi Sasaki
  • Patent number: 9212881
    Abstract: In a hole examining device, an examination head (105) is supported to be movable in an X direction and a Y direction which are orthogonal to each other, measurement heads (125, 126) are supported to be movable in a Z direction which is orthogonal to the X direction and the Y direction with respect to the examination head (105), and a plurality of first measurers (127) and a plurality of second measurers (128) are arranged in the measurement heads (125, 126) in parallel and may be held at an advance position which advances as well as retreats with respect to the Z direction, thereby improving workability of an examining operation.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: December 15, 2015
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshitake Kasubata, Masaaki Ishii
  • Publication number: 20150321308
    Abstract: A polishing apparatus is provided with a machining head that is supported to freely move in two horizontal directions; driving devices that enables the machining head to move; a polishing jig that is supported by the machining head to freely move in a vertical direction; a polishing member that is mounted on a lower end portion of the polishing jig; an air cylinder polishing jig moving device that moves the polishing jig and is capable of pressing the polishing member against a tube support plate; and a drive motor that is capable of rotating the polishing jig, thus, simplification of the structure is made possible.
    Type: Application
    Filed: March 5, 2013
    Publication date: November 12, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshinobu Yoshikawa, Yoichi Ishigami, Yoshihiko Higashiguchi, Yoshitake Kasubata, Yuichi Sasaki
  • Publication number: 20150075572
    Abstract: A cleaning device of a porous plate for nuclear power including: cleaning tanks (72, 73) that is capable of storing a cleaning liquid therein and is capable of housing the porous plate (43) in an upright state; a rotation device (84) that is capable of rotating the porous plate (43) within the respective cleaning tanks (72, 73); and an ultrasonic wave oscillation device (111) that irradiates the porous plate (43) within the cleaning tanks (72, 73) with ultrasonic wave. Thus, it is possible to efficiently remove the adhered foreign substances.
    Type: Application
    Filed: March 5, 2013
    Publication date: March 19, 2015
    Inventors: Yoichi Ishigami, Masato Yamasaki, Yoshitake Kasubata, Yuichi Sasaki
  • Publication number: 20130259588
    Abstract: The hole drilling process is for drilling a hole on a supported tube sheet by using a first drilling tool that can drill a hole with a diameter smaller than that of a mounting hole that is to become a target hole, and a second drilling tool that can drill a hole with a diameter equal to the diameter of the target hole, the process including: a temporary hole drilling step in which a temporary hole with a predetermined depth set beforehand is drilled by moving the first drilling tool to a drilled position set beforehand; a hole measuring step in which a distance (S) between an existing mounting hole and the temporary hole; a drilled position correcting step in which the drilled position is corrected based upon the distance (S) between the mounting hole and the temporary hole.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 3, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshitake Kasubata, Shigeru Okamoto, Yuichi Sasaki
  • Publication number: 20130223947
    Abstract: A broaching device is provided with puller heads (132,134) that hold tip portions of broaches (116) and are supported in a horizontally freely movable manner, main motors (136, 140) capable of moving the puller heads (132, 134), retriever heads (133,135) that hold base end portions of the broaches (116) and are supported in a horizontally freely movable manner, sub motors (138,142) capable of moving the retriever heads (133,135), and a control device (117) that enables the puller heads (132,134) and the retriever heads (133, 135) to be synchronized with each other and to move at a fixed speed by controlling the motors (136,138,140,142), whereby machining accuracy can be improved.
    Type: Application
    Filed: December 12, 2011
    Publication date: August 29, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshitake Kasubata, Yoshihiko Higashiguchi, Yuichi Sasaki, Akio Kambe
  • Publication number: 20130209185
    Abstract: A hole drilling device and method include a drilling head (61), a plurality of hole drilling tools (63) detachably attached to the drilling head (61), a driving device (64) for allowing the drilling head (61) to move in the radial direction and axial direction of attachment holes (60) to be formed on a tube sheet (45), and a control device (65) for driving the driving device (64). The hole drilling tools (63) are disposed, in relation to the drilling head (61), along the arrangement direction of the attachment holes (60) and at an equal interval from one another, said interval being an integer multiple equal to or greater than double the pitch of the attachment holes (60); and the control device (65) drives the driving device (64).
    Type: Application
    Filed: November 11, 2011
    Publication date: August 15, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yuichi Sasaki, Yoshitake Kasubata
  • Publication number: 20130192076
    Abstract: In a hole examining device, an examination head (105) is supported to be movable in an X direction and a Y direction which are orthogonal to each other, measurement heads (125, 126) are supported to be movable in a Z direction which is orthogonal to the X direction and the Y direction with respect to the examination head (105), and a plurality of first measurers (127) and a plurality of second measurers (128) are arranged in the measurement heads (125, 126) in parallel and may be held at an advance position which advances as well as retreats with respect to the Z direction, thereby improving workability of an examining operation.
    Type: Application
    Filed: November 8, 2011
    Publication date: August 1, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshitake Kasubata, Masaaki Ishii
  • Publication number: 20090274400
    Abstract: The present invention provides a rotating-body support structure that is capable of obtaining a damping effect of a rotating body with a simple configuration. To this end, the rotating-body support structure is configured to include a housing (21) and a bush portion (24) which is supported by the housing (21) and which rotatably supports a boring bar (11); and to have oil filled between the housing (21) and the bush portion (24).
    Type: Application
    Filed: June 26, 2007
    Publication date: November 5, 2009
    Inventors: Katsuya Yamashita, Chiaki Yasuda, Kazuhiro Tamura, Hitoshi Kaguchi, Yoshitake Kasubata, Akio Kambe
  • Publication number: 20090074523
    Abstract: A deep-hole drilling apparatus capable of preventing a tool mark from growing is provided. The deep-hole drilling apparatus provided for this purpose comprises: a tool (12) that is rotationally driven to drill a deep hole (Wa) in a work (W); an acceleration meter (19) that detects vibration of the tool (12) as the acceleration during deep hole processing; a monitoring apparatus (20) which performs frequency analysis on the acceleration detected by the acceleration meter (19) and which determines that a tool mark is produced in the deep hole (Wa) when the overall value of the whirling frequency and the bending natural frequency within a frequency range not including the torsional natural frequency on torsional vibration, constantly produced during the deep hole processing, exceeds a predetermined threshold (?); and an NC apparatus (18) that controls both revolution and feeding speed of the tool (12) on the basis of the determination made by the monitoring apparatus (20).
    Type: Application
    Filed: June 26, 2007
    Publication date: March 19, 2009
    Inventors: Rimpei Kawashita, Kazuo Hirota, Hitoshi Kaguchi, Yoshitake Kasubata, Akio Kambe