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).
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Patent number: 9051879Abstract: 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: GrantFiled: July 8, 2013Date of Patent: June 9, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Minoru Ohara
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Patent number: 8722144Abstract: 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: GrantFiled: August 10, 2011Date of Patent: May 13, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Minoru Ohara
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Publication number: 20140023787Abstract: 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: ApplicationFiled: July 8, 2013Publication date: January 23, 2014Inventor: Minoru OHARA
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Publication number: 20110293836Abstract: 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: ApplicationFiled: August 10, 2011Publication date: December 1, 2011Inventor: Minoru OHARA
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Publication number: 20100062173Abstract: 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: ApplicationFiled: November 13, 2009Publication date: March 11, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.Inventors: Taiji Torigoe, Kazutaka Mori, Ikuo Okada, Sunao Aoki, Kouji Takahashi, Minoru Ohara, Takehiko Hirata, Hideaki Kaneko
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Patent number: 7655326Abstract: 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: GrantFiled: June 14, 2002Date of Patent: February 2, 2010Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Taiji Torigoe, Kazutaka Mori, Ikuo Okada, Sunao Aoki, Kouji Takahashi, Minoru Ohara, Takehiko Hirata
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Patent number: 7531757Abstract: 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: GrantFiled: February 26, 2008Date of Patent: May 12, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Takuya Takahashi, Kazuhiro Yamamoto, Minoru Ohara
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Publication number: 20080158835Abstract: 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: ApplicationFiled: February 26, 2008Publication date: July 3, 2008Inventors: Takuya TAKAHASHI, Kazuhiro Yamamoto, Minoru Ohara
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Patent number: 7354663Abstract: 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: GrantFiled: April 2, 2004Date of Patent: April 8, 2008Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Taiji Torigoe, Kazutaka Mori, Sunao Aoki, Kouji Takahashi, Minoru Ohara
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Patent number: 7351920Abstract: 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: GrantFiled: May 22, 2003Date of Patent: April 1, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Takuya Takahashi, Kazuhiro Yamamoto, Minoru Ohara
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Patent number: 7172787Abstract: 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: GrantFiled: December 12, 2003Date of Patent: February 6, 2007Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Taiji Torigoe, Ikuo Okada, Kouji Takahashi, Minoru Ohara, Kengo Yamaguchi, Sunao Aoki
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Patent number: 7105219Abstract: 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: GrantFiled: May 27, 2004Date of Patent: September 12, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Minoru Ohara
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Patent number: 7063250Abstract: 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: GrantFiled: May 31, 2002Date of Patent: June 20, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Minoru Ohara, Masahiko Mega
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Publication number: 20060078674Abstract: 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: ApplicationFiled: November 27, 2003Publication date: April 13, 2006Applicant: Mitsubishi Heavy Industries, Ltd.Inventor: Minoru Ohara
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Patent number: 6984801Abstract: 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: GrantFiled: August 29, 2002Date of Patent: January 10, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Masahiko Mega, Koji Takahashi, Yoshitaka Uemura, Kengo Yamaguchi, Masaya Kanikawa, Syuho Tsubota, Ken Fujita, Toshihiko Tsunatani, Minoru Ohara
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Publication number: 20050266207Abstract: 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: ApplicationFiled: May 27, 2004Publication date: December 1, 2005Inventor: Minoru Ohara
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Publication number: 20050221109Abstract: 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: ApplicationFiled: April 2, 2004Publication date: October 6, 2005Inventors: Taiji Torigoe, Kazutaka Mori, Sunao Aoki, Kouji Takahashi, Minoru Ohara
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Patent number: 6902407Abstract: 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: GrantFiled: September 2, 2003Date of Patent: June 7, 2005Assignees: Yamaichi Electronics Co., Ltd., Kabushiki Kaisha ToshibaInventors: Toshiyasu Ito, Minoru Ohara
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Patent number: 6896485Abstract: 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: GrantFiled: February 27, 2002Date of Patent: May 24, 2005Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Minoru Ohara, Masahiko Mega
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Patent number: 6887036Abstract: 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: GrantFiled: November 8, 2002Date of Patent: May 3, 2005Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Minoru Ohara, Nobuhiro Kunitake