Patents by Inventor Katsumi Terada
Katsumi Terada 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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Publication number: 20230235677Abstract: A nozzle module includes a nozzle body having a blade shape in a cross section and extending in a radial direction, and a platform member integrally connected to each end portion of the nozzle body in the radial direction. The platform member includes a first portion formed on a first side in an axial direction in which a central axis extends, and having a pair of first side surfaces extending in the axial direction, when viewed in the radial direction, and a second portion formed to extend to a second side in the axial direction with respect to the first portion, and having a second side surface extending obliquely with respect to the first side surface, when viewed in the radial direction.Type: ApplicationFiled: January 23, 2023Publication date: July 27, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Yuzo Tsurusaki
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Patent number: 11655733Abstract: A turbine stator includes a partition plate including an inner ring that extends along a circumferential direction, an outer ring that is disposed on an outer side of the inner ring in a radial direction, and extends in the circumferential direction, a plurality of nozzles that are disposed in the circumferential direction between the inner ring and the outer ring, and are configured to guide a fluid from an upstream side toward a downstream side in an axial direction, and an annular protruding portion, protrudes from the outer ring to the downstream side in the axial direction, and extends along the outer ring in the circumferential direction, and a casing surrounding the partition plate from the outer side in the radial direction, and having a contact support surface that is in contact with the annular protruding portion from the downstream side in the axial direction.Type: GrantFiled: September 27, 2019Date of Patent: May 23, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Yuzo Tsurusaki
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Patent number: 11635002Abstract: A steam turbine includes a rotor, a casing, a partition plate, and a center guide pin. The center guide pin has a positioning portion. In a state of being attached to a pin attachment portion formed in one of the casing and the partition plate, the positioning portion is disposed in a groove portion formed in the other of the casing and the partition plate. The positioning portion includes a plurality of abutment portions capable of abutting on an inner side surface of the groove portion, around a pin axis. The plurality of abutment portions is formed to have different horizontal distances from the pin axis.Type: GrantFiled: February 24, 2017Date of Patent: April 25, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Publication number: 20220049627Abstract: A turbine stator includes a partition plate including an inner ring that extends along a circumferential direction, an outer ring that is disposed on an outer side of the inner ring in a radial direction, and extends in the circumferential direction, a plurality of nozzles that are disposed in the circumferential direction between the inner ring and the outer ring, and are configured to guide a fluid from an upstream side toward a downstream side in an axial direction, and an annular protruding portion, protrudes from the outer ring to the downstream side in the axial direction, and extends along the outer ring in the circumferential direction, and a casing surrounding the partition plate from the outer side in the radial direction, and having a contact support surface that is in contact with the annular protruding portion from the downstream side in the axial direction.Type: ApplicationFiled: September 27, 2019Publication date: February 17, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Yuzo Tsurusaki
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Publication number: 20210332722Abstract: A steam turbine includes a rotor, a casing, a partition plate, and a center guide pin. The center guide pin has a positioning portion. In a state of being attached to a pin attachment portion formed in one of the casing and the partition plate, the positioning portion is disposed in a groove portion formed in the other of the casing and the partition plate. The positioning portion includes a plurality of abutment portions capable of abutting on an inner side surface of the groove portion, around a pin axis. The plurality of abutment portions is formed to have different horizontal distances from the pin axis.Type: ApplicationFiled: February 24, 2017Publication date: October 28, 2021Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Patent number: 11047261Abstract: A steam turbine assembling method includes an upper half assembling step of, after disposing an upper half partition plate having an upper half partition plate division surface on the inner peripheral side of an upper half casing having an upper half casing division surface, attaching an upper half position defining portion to the upper half casing and the upper half partition plate so as to form an upper half assembly, and a lower half assembling step of disposing a lower half partition plate having a lower half partition plate division surface capable of abutting against the upper half partition plate division surface on an inner peripheral side of a lower half casing having a lower half casing division surface capable of abutting against the upper half casing division surface so as to form a lower half assembly.Type: GrantFiled: September 5, 2016Date of Patent: June 29, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Patent number: 11022000Abstract: A steam turbine assembling method includes: disposing an upper half partition plate having an upper half partition plate division surface on an inner peripheral side of an upper half casing having an upper half casing division surface to form an upper half assembly; and, after disposing a lower half partition plate having a lower half partition plate division surface capable of abutting against the upper half partition plate division surface on an inner peripheral side of a lower half casing having a lower half casing division surface capable of abutting against the upper half casing division surface, fixing a lower half position defining portion to the lower half partition plate in a state where a lower half abutment surface abuts against the lower half casing division surface and the lower half partition plate division surface to form a lower half assembly.Type: GrantFiled: September 5, 2016Date of Patent: June 1, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Patent number: 10752970Abstract: A method for producing a turbine rotor includes forming a rotor base material having a maximum outer diameter of 1000 mm or less from low-alloy steel including carbon, silicon, manganese, nickel, chromium, molybdenum, and vanadium; heating the rotor base material, by a quenching process, to a temperature range of 940° C. to 960° C.; performing oil quenching on the rotor base material, after the quenching process, in a temperature range of 250° C. to 500° C., at a cooling rate of at least 2.0° C./min; and tempering the rotor base material, after the quenching process, at a temperature of at least 630° C., and under a condition that a tempering parameter P is in the range of 19700 to 19900, wherein P is defined by the formula P=T (C+log(t)).Type: GrantFiled: August 28, 2015Date of Patent: August 25, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Takayuki Miyata, Takafumi Higuchi, Hiroki Shibahara
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Patent number: 10722989Abstract: Provided is a turbine rotor disc repairing method for removing a defect portion created in an outer peripheral portion of a turbine rotor disc having a blade groove formed in the outer peripheral portion and then reforming the blade groove. The method includes: removing a region including the defect portion from the turbine rotor disc with a rotating shaft supported horizontally to form a disc under repair; annularly joining an edge plate along an outer peripheral edge of the disc under repair by welding; performing build-up welding of a surface to be welded while rotating the disc under repair around the rotating shaft; and removing an excess thickness of a build-up weld and the edge plate from the disc under repair, wherein the disc under repair includes a first groove and a first route surface continuous with the first groove.Type: GrantFiled: November 24, 2016Date of Patent: July 28, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventor: Katsumi Terada
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Patent number: 10612419Abstract: A steam turbine includes: a stator vane disposed in a cylinder inside a casing through which steam flows from an upstream side toward a downstream side; and a stationary support that supports the stator vane relative to the casing. The stationary support includes: a first supporting body fixed to the casing, a second supporting body that connects the stator vane to the first supporting body; and a replacement body detachably disposed between the first supporting body and the second supporting body on the upstream side.Type: GrantFiled: February 23, 2016Date of Patent: April 7, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Publication number: 20190211710Abstract: A steam turbine assembling method includes: disposing an upper half partition plate having an upper half partition plate division surface on an inner peripheral side of an upper half casing having an upper half casing division surface to form an upper half assembly; and, after disposing a lower half partition plate having a lower half partition plate division surface capable of abutting against the upper half partition plate division surface on an inner peripheral side of a lower half casing having a lower half casing division surface capable of abutting against the upper half casing division surface, fixing a lower half position defining portion to the lower half partition plate in a state where a lower half abutment surface abuts against the lower half casing division surface and the lower half partition plate division surface to form a lower half assembly.Type: ApplicationFiled: September 5, 2016Publication date: July 11, 2019Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Publication number: 20190186298Abstract: A steam turbine assembling method includes an upper half assembling step of, after disposing an upper half partition plate having an upper half partition plate division surface on the inner peripheral side of an upper half casing having an upper half casing division surface, attaching an upper half position defining portion to the upper half casing and the upper half partition plate so as to form an upper half assembly, and a lower half assembling step of disposing a lower half partition plate having a lower half partition plate division surface capable of abutting against the upper half partition plate division surface on an inner peripheral side of a lower half casing having a lower half casing division surface capable of abutting against the upper half casing division surface so as to form a lower half assembly.Type: ApplicationFiled: September 5, 2016Publication date: June 20, 2019Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Patent number: 10199349Abstract: A mounting device includes a thermocompression bonding head, a pressure reduction mechanism, and a resin sheet feed mechanism. The thermocompression bonding head is configured to heat a semiconductor chip while holding the semiconductor chip and to bond the semiconductor chip to a joined piece by compression. The thermocompression bonding head has a suction hole in a face that holds the semiconductor chip. The pressure reduction mechanism communicates with the suction hole and is configured to reduce pressure inside the suction hole. The resin sheet feed mechanism is configured to supply a resin sheet between the thermocompression bonding head and the semiconductor chip. An electrode that protrudes from a top face of the semiconductor chip is bonded by thermocompression after being embedded in the resin sheet.Type: GrantFiled: February 2, 2016Date of Patent: February 5, 2019Assignee: TORAY ENGINEERING CO., LTD.Inventor: Katsumi Terada
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Publication number: 20190003338Abstract: A steam turbine includes: a stator vane disposed in a cylinder inside a casing through which steam flows from an upstream side toward a downstream side; and a stationary support that supports the stator vane relative to the casing. The stationary support includes: a first supporting body fixed to the casing, a second supporting body that connects the stator vane to the first supporting body; and a replacement body detachably disposed between the first supporting body and the second supporting body on the upstream side.Type: ApplicationFiled: February 23, 2016Publication date: January 3, 2019Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Katsumi Terada, Hiroaki Irikawa, Yuichi Sasaki
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Publication number: 20180304419Abstract: Provided is a turbine rotor disc repairing method for removing a defect portion created in an outer peripheral portion of a turbine rotor disc having a blade groove formed in the outer peripheral portion and then reforming the blade groove. The method includes: removing a region including the defect portion from the turbine rotor disc with a rotating shaft supported horizontally to form a disc under repair; annularly joining an edge plate along an outer peripheral edge of the disc under repair by welding; performing build-up welding of a surface to be welded while rotating the disc under repair around the rotating shaft; and removing an excess thickness of a build-up weld and the edge plate from the disc under repair, wherein the disc under repair includes a first groove and a first route surface continuous with the first groove.Type: ApplicationFiled: November 24, 2016Publication date: October 25, 2018Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventor: Katsumi Terada
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Publication number: 20180179608Abstract: A method for producing a turbine rotor includes forming a rotor base material having a maximum outer diameter of 1000 mm or less from low-alloy steel including carbon, silicon, manganese, nickel, chromium, molybdenum, and vanadium; heating the rotor base material, by a quenching process, to a temperature range of 940° C. to 960° C.; performing oil quenching on the rotor base material, after the quenching process, in a temperature range of 250° C. to 500° C., at a cooling rate of at least 2.0° C./min; and tempering the rotor base material, after the quenching process, at a temperature of at least 630° C., and under a condition that a tempering parameter P is in the range of 19700 to 19900, wherein P is defined by the formula P=T (C+log(t)).Type: ApplicationFiled: August 28, 2015Publication date: June 28, 2018Applicants: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, JAPAN CASTING & FORGING CORPORATIONInventors: Katsumi Terada, Takayuki Miyata, Takafumi Higuchi, Hiroki Shibahara
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Publication number: 20180019223Abstract: A mounting device includes a thermocompression bonding head, a pressure reduction mechanism, and a resin sheet feed mechanism. The thermocompression bonding head is configured to heat a semiconductor chip while holding the semiconductor chip and to bond the semiconductor chip to a joined piece by compression. The thermocompression bonding head has a suction hole in a face that holds the semiconductor chip. The pressure reduction mechanism communicates with the suction hole and is configured to reduce pressure inside the suction hole. The resin sheet feed mechanism is configured to supply a resin sheet between the thermocompression bonding head and the semiconductor chip. An electrode that protrudes from a top face of the semiconductor chip is bonded by thermocompression after being embedded in the resin sheet.Type: ApplicationFiled: February 2, 2016Publication date: January 18, 2018Inventor: Katsumi TERADA
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Publication number: 20170350264Abstract: A nozzle structure is provided between a rotor configured to rotate about an axis and a casing configured to surround the rotor from an outer peripheral side thereof. The nozzle structure includes an outer ring disposed inside the casing; a nozzle provided at an inner radial side of the outer ring; a labyrinth seal including a plurality of fins arranged in a direction of the axis and provided between an inner peripheral surface of the nozzle and an outer peripheral surface of the rotor; and an elastic member provided between the nozzle and the labyrinth seal.Type: ApplicationFiled: December 24, 2014Publication date: December 7, 2017Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventor: Katsumi TERADA
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Patent number: 9673166Abstract: A three-dimensional mounting method for successively laminating N number of upper-layer joining materials includes positioning a first upper-layer joining material relative to a lowermost-layer joining material by recognizing an alignment position of the lowermost-layer joining material and a lower face alignment position of the first upper-layer joining material by a two-field image recognition unit, storing positional coordinates of the alignment position of the lowermost-layer joining material, positioning an (n+1)-th upper-layer joining material relative to an n-th upper-layer joining material by recognizing an upper face alignment position of the n-th upper-layer joining material and a lower face alignment position of the (n+1)-th upper-layer joining material, storing positional coordinates of the upper face alignment position of the n-th upper-layer joining material, recognizing an upper face alignment position of the N-th uppermost-layer joining material, and storing positional coordinates of the upperType: GrantFiled: November 19, 2014Date of Patent: June 6, 2017Assignee: TORAY ENGINEERING CO., LTD.Inventors: Koji Nishimura, Katsumi Terada, Mikio Kawakami
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Publication number: 20170005068Abstract: A three-dimensional mounting method for successively laminating N number of upper-layer joining materials includes positioning a first upper-layer joining material relative to a lowermost-layer joining material by recognizing an alignment position of the lowermost-layer joining material and a lower face alignment position of the first upper-layer joining material by a two-field image recognition unit, storing positional coordinates of the alignment position of the lowermost-layer joining material, positioning an (n+1)-th upper-layer joining material relative to an n-th upper-layer joining material by recognizing an upper face alignment position of the n-th upper-layer joining material and a lower face alignment position of the (n+1)-th upper-layer joining material, storing positional coordinates of the upper face alignment position of the n-th upper-layer joining material, recognizing an upper face alignment position of the N-th uppermost-layer joining material, and storing positional coordinates of the upperType: ApplicationFiled: November 19, 2014Publication date: January 5, 2017Inventors: Koji NISHIMURA, Katsumi TERADA, Mikio KAWAKAMI