Patents by Inventor Minoru Ohara

Minoru Ohara 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: 9051879
    Abstract: A thermal barrier coating method forms a thermal barrier coating by spray coating over the surface of a component where cooling holes are made. The thermal barrier coating is formed by spray coating after masking pins, which do not protrude above the surface of the component, are inserted into the cooling holes or masking pins protruding above the surface of the component are inserted and get shrunk due to heat while spray coating, obtaining the protruding amount equal to or less than the thickness of the thermal barrier coating after shrinkage, which characterizes the method. By way of this method, a thermal barrier coating can be formed all over the surface without clogging the cooling holes.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: June 9, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Minoru Ohara
  • Patent number: 8722144
    Abstract: A thermal barrier coating method forms a thermal barrier coating by spray coating over the surface of a component where cooling holes are made. The thermal barrier coating is formed by spray coating after masking pins, which do not protrude above the surface of the component, are inserted into the cooling holes or masking pins protruding above the surface of the component are inserted and get shrunk due to heat while spray coating, obtaining the protruding amount equal to or less than the thickness of the thermal barrier coating after shrinkage, which characterizes the method. By way of this method, a thermal barrier coating can be formed all over the surface without clogging the cooling holes.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: May 13, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Minoru Ohara
  • Publication number: 20140023787
    Abstract: A thermal barrier coating method forms a thermal barrier coating by spray coating over the surface of a component where cooling holes are made. The thermal barrier coating is formed by spray coating after masking pins, which do not protrude above the surface of the component, are inserted into the cooling holes or masking pins protruding above the surface of the component are inserted and get shrunk due to heat while spray coating, obtaining the protruding amount equal to or less than the thickness of the thermal barrier coating after shrinkage, which characterizes the method. By way of this method, a thermal barrier coating can be formed all over the surface without clogging the cooling holes.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 23, 2014
    Inventor: Minoru OHARA
  • Publication number: 20110293836
    Abstract: A thermal barrier coating method forms a thermal barrier coating by spray coating over the surface of a component where cooling holes are made. The thermal barrier coating is formed by spray coating after masking pins, which do not protrude above the surface of the component, are inserted into the cooling holes or masking pins protruding above the surface of the component are inserted and get shrunk due to heat while spray coating, obtaining the protruding amount equal to or less than the thickness of the thermal barrier coating after shrinkage, which characterizes the method. By way of this method, a thermal barrier coating can be formed all over the surface without clogging the cooling holes.
    Type: Application
    Filed: August 10, 2011
    Publication date: December 1, 2011
    Inventor: Minoru OHARA
  • Publication number: 20100062173
    Abstract: A thermal barrier coating material, containing a metal binding layer laminated on a base material and ceramic layer laminated on the metal binding layer, the ceramic layer comprising partially stabilized ZrO2 which is partially stabilized by additives of Dy2O3 and Yb2O3.
    Type: Application
    Filed: November 13, 2009
    Publication date: March 11, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Taiji Torigoe, Kazutaka Mori, Ikuo Okada, Sunao Aoki, Kouji Takahashi, Minoru Ohara, Takehiko Hirata, Hideaki Kaneko
  • Patent number: 7655326
    Abstract: A thermal barrier coating material, containing a metal binding layer laminated on a base material and a ceramic layer laminated on the metal binding layer, the ceramic layer comprising partially stabilized ZrO2 which is partially stabilized by additives of Dy2O3 and Yb2O3.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: February 2, 2010
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Taiji Torigoe, Kazutaka Mori, Ikuo Okada, Sunao Aoki, Kouji Takahashi, Minoru Ohara, Takehiko Hirata
  • Patent number: 7531757
    Abstract: An IC card includes a semiconductor integrated circuit device package having one surface and another surface opposite to the one surface, card terminals on the one surface of the package, and a base card which includes a concave portion attached to the other surface of the package. The package includes a wiring board, a semiconductor integrated circuit chip on the wiring board, and an insulating resin coated over the semiconductor integrated circuit chip. The package is a rectangular parallelepiped package. The insulating resin is exposed to the other surface of the package. The insulating resin and the wiring board are exposed to four surfaces of the package except for the one surface and the other surface.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: May 12, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takuya Takahashi, Kazuhiro Yamamoto, Minoru Ohara
  • Publication number: 20080158835
    Abstract: An IC card includes a semiconductor integrated circuit device package having one surface and another surface opposite to the one surface, card terminals on the one surface of the package, and a base card which includes a concave portion attached to the other surface of the package. The package includes a wiring board, a semiconductor integrated circuit chip on the wiring board, and an insulating resin coated over the semiconductor integrated circuit chip. The package is a rectangular parallelepiped package. The insulating resin is exposed to the other surface of the package. The insulating resin and the wiring board are exposed to four surfaces of the package except for the one surface and the other surface.
    Type: Application
    Filed: February 26, 2008
    Publication date: July 3, 2008
    Inventors: Takuya TAKAHASHI, Kazuhiro Yamamoto, Minoru Ohara
  • Patent number: 7354663
    Abstract: A thermal barrier coating enabling to prevent peeling of layer in a high temperature use and still having a high thermal barrier effect, a turbine part coated by this thermal barrier coating and a gas turbine comprising this turbine part are provided. The thermal barrier coating comprises a base material 21 of high temperature heat resistant alloy and a ceramics layer 23 formed on the base material 21. The ceramics layer 23 comprises ZrO2 added with Yb2O3 as stabilizer and is laminated on the base material via a bond coat layer 22 laminated as a metallic bond layer. A plurality of cracks 23A are preferably introduced in the ceramics layer 23. The turbine part is constructed having its surface coated with the above thermal barrier coating.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: April 8, 2008
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Taiji Torigoe, Kazutaka Mori, Sunao Aoki, Kouji Takahashi, Minoru Ohara
  • Patent number: 7351920
    Abstract: An IC card includes a semiconductor integrated circuit device package having one surface and another surface opposite to the one surface, card terminals on the one surface of the package, and a base card which includes a concave portion attached to the other surface of the package. The package includes a wiring board, a semiconductor integrated circuit chip on the wiring board, and an insulating resin coated over the semiconductor integrated circuit chip. The package is a rectangular parallelepiped package. The insulating resin is exposed to the other surface of the package. The insulating resin and the wiring board are exposed to four surfaces of the package except for the one surface and the other surface.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: April 1, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takuya Takahashi, Kazuhiro Yamamoto, Minoru Ohara
  • Patent number: 7172787
    Abstract: The present invention relates to a method of repairing a Ni-based alloy part having an undercoat layer and a topcoat layer stacked on a Ni-based alloy base when the topcoat layer is damaged, comprising the steps of removing a peeled-off portion of the damaged topcoat layer and a denatured portion of the undercoat layer corresponding to the peeled-off portion, forming another undercoat layer by applying spraying to an opening portion of the undercoat layer in the atmosphere at a spray particle speed of 300 m/s or more and a base-material temperature of 300° C.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: February 6, 2007
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Taiji Torigoe, Ikuo Okada, Kouji Takahashi, Minoru Ohara, Kengo Yamaguchi, Sunao Aoki
  • Patent number: 7105219
    Abstract: A brazing construction and method of brazing an abradable sealing material onto a base material is provided. The abradable sealing material is a tabular member having a cellular compartment construction in honeycomb form having empty compartments and partitions formed by overlapping a plurality of thin corrugated sheets. The abradable sealing material is brazed on the main material by, applying a stop-off agent on a side surface of the abradable sealing material except on a portion of the side surface close to a brazing face to form a stop-off area that prevents infiltration of a brazing filler metal in an overlapping part; superposing the brazing face of the abradable sealing material on the base material, such that the brazing filler metal is provided between the abradable sealing material and the base metal; and brazing the abradable sealing material to said base material.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: September 12, 2006
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Minoru Ohara
  • Patent number: 7063250
    Abstract: A brazing filler metal sheet is prepared. The brazing filler metal sheet includes a brazing filler metal layer, a sticking material layer, and a released paper. The brazing filler metal layer includes a brazing filler metal. A coating material layer is laminated on the brazing filler metal layer. The coating material layer includes a mixture of coating material particles and a binder. As the coating material particles, MCrAlY particles and abrasive particles are used. The coating material layer is then dried, and the brazing filler metal sheet is cut (step S4), and adhered to a rotor blade. The rotor blade is heated, to melt the brazing filler metal. The brazing filler metal diffuses due to the heat treatment holding process. A solidified layer is then formed by cooling. This solidified layer is subjected to blasting to allow the cubic boron nitride particles to protrude.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 20, 2006
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Minoru Ohara, Masahiko Mega
  • Publication number: 20060078674
    Abstract: A sheet pan (120) having a groove (121), into which a brazing sheet is fitted, is disposed on a base (110). A slide member (140) can slidingly move along the longitudinal direction of the sheet pan (120) at a position above the sheet pan (120). A blade (160) is moved upward and downward by a micrometer (170) fixed to and supported by the slide member (140). A brazing sheet is fitted into the groove (121), and coated with an abrasive coating material. The slide member (140) is slid, with the clearance between the blade (160) and the sheet pan (110) being adjusted using the micrometer (170). As a result, a surplus of the abrasive coating material is scraped off, and the abrasive coating material becomes uniform in thickness. Thus, an abrasive coating sheet high in quality and uniform in the thickness of the abrasive coating material can be produced conveniently.
    Type: Application
    Filed: November 27, 2003
    Publication date: April 13, 2006
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventor: Minoru Ohara
  • Patent number: 6984801
    Abstract: A tip plug is capped on a boss section so as to fit to a hole which is used for detaching a core which is formed in a blade tip section of the gas turbine blade. A butt-section T is melted so as to form a butt-welding section by using a YAG laser beam. Also, parameters such as an interval between the butt-section T, a member for forming the tip plug, condition for a laser welding operation, and a defocus position of the laser beam are optimized.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: January 10, 2006
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Masahiko Mega, Koji Takahashi, Yoshitaka Uemura, Kengo Yamaguchi, Masaya Kanikawa, Syuho Tsubota, Ken Fujita, Toshihiko Tsunatani, Minoru Ohara
  • Publication number: 20050266207
    Abstract: An object is to provide a brazing construction and a method for brazing for an abradable sealing material wherein a decrease in abradability does not occur. A stop-off area that prevents infiltration of a brazing filler metal is provided on a non-brazed side of a honey comb sheet, that is an abradable sealing material, with a predetermined depth through the sequential steps of: masking an area to a predetermined depth on a brazing side by pressing a brazing side of the honeycomb sheet into a masking sheet; applying a stop-off agent to the honeycomb sheet in this condition to form a film of the stop-off agent on a region outside of the masked region; removing the masking sheet; placing a face to be brazed of the honeycomb sheet onto a sheet of brazing filler metal which is positioned on a base material, so as to be pressed in; and brazing by placing the honeycomb sheet and the base material into a heating furnace.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 1, 2005
    Inventor: Minoru Ohara
  • Publication number: 20050221109
    Abstract: A thermal barrier coating enabling to prevent peeling of layer in a high temperature use and still having a high thermal barrier effect, a turbine part coated by this thermal barrier coating and a gas turbine comprising this turbine part are provided. The thermal barrier coating comprises a base material 21 of high temperature heat resistant alloy and a ceramics layer 23 formed on the base material 21. The ceramics layer 23 comprises ZrO2 added with Yb2O3 as stabilizer and is laminated on the base material via a bond coat layer 22 laminated as a metallic bond layer. A plurality of cracks 23A are preferably introduced in the ceramics layer 23. The turbine part is constructed having its surface coated with the above thermal barrier coating.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 6, 2005
    Inventors: Taiji Torigoe, Kazutaka Mori, Sunao Aoki, Kouji Takahashi, Minoru Ohara
  • Patent number: 6902407
    Abstract: There are provided for an improved card connector contacting structure featuring its compactness and simplicity in construction, higher reliability of contacting action and higher impact resistance. The contacting structure is designed as a card connector comprising a plurality of contact terminals which are arranged in parallel with one another; among the plurality of contact terminals, at least two are the terminals for connecting with the power source; at least two are the terminals for grounding; at least one is for detecting whether the IC card has been loaded securely into the card connector; among the plurality of contact terminals, one of the terminals for grounding comes into contact first with the corresponding external contact of the IC card, among the plurality of contact terminals, the terminal for detecting the card coming into contact last with the corresponding external contact of the IC card.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: June 7, 2005
    Assignees: Yamaichi Electronics Co., Ltd., Kabushiki Kaisha Toshiba
    Inventors: Toshiyasu Ito, Minoru Ohara
  • Patent number: 6896485
    Abstract: The present invention provides a gas turbine in which a proper clearance is kept between a rotor blade and a shroud for a long period of time from the operation start, so that damage to the rotor blade is less liable to occur. In a turbine portion of the gas turbine in accordance with the present invention, the rotor blade and the shroud face each other. At the tip end of the rotor blade is formed an abrasive layer, and on the inner peripheral surface of the shroud is formed a heat insulating layer. The abrasive layer is formed of a matrix and many abrasive particles dispersed in the matrix. The abrasive particles include protruding particles protruding from the matrix and embedded particles embedded in the matrix. In initial sliding of the rotor blade and the shroud at the early stage of operation, the inner peripheral surface of the shroud is ground by the protruding particles. After the protruding particles have disappeared, the inner peripheral surface of the shroud is ground by the embedded particles.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: May 24, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Minoru Ohara, Masahiko Mega
  • Patent number: 6887036
    Abstract: A tip of rotor blade which rotates is an abradable surface. An inner wall of a shroud as a jacket for the rotor blade is an abrasive surface. A part of an abrasive particle protrudes from the abradable surface. When the tip of the rotor blade which rotates contacts the inner wall of the shroud, the protruding section of the abrasive particle slides with the abrasive surface so as to be ground. By doing this, a turbine which can maintain an appropriate clearance between the rotor blade and the shroud and can be used for a long period under high-temperature conditions with easy restoration and remaking thereof.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: May 3, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Minoru Ohara, Nobuhiro Kunitake