Patents by Inventor Yoichiro Tsumura
Yoichiro Tsumura 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: 11891978Abstract: A wind turbine blade includes: a blade body; a down conductor extending along a longitudinal direction of the blade body; and at least a pair of magnetic field sensors disposed inside the blade body and at opposite positions across the down conductor, a pair of magnetic field sensors being configured to detect a local magnetic field at each of the positions. At least the pair of magnetic field sensors includes: a first sensor disposed on a first axis passing through an installation position of the down conductor in a cross section intersecting the longitudinal direction; and a second sensor disposed on a second axis passing through the installation position and being orthogonal to the first axis in the cross section.Type: GrantFiled: October 19, 2021Date of Patent: February 6, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tatsufumi Aoi, Syusaku Yamamoto, Naoto Murata, Yoichiro Tsumura
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Publication number: 20230400012Abstract: A lightning protection system for a wind turbine blade, includes: a receptor disposed in a tip portion of the wind turbine blade; a leading edge protection portion made of a metal and electrically connected to the receptor and disposed so as to cover a leading edge of the wind turbine blade; a down conductor connected to the receptor; at least one connecting conductor for electrically connecting the leading edge protection portion and the down conductor at a position between the receptor and a blade root in a blade spanwise direction of the wind turbine blade; and a first current sensor for measuring a current flowing through a blade tip-side portion which is a portion, of the down conductor, between a blade tip and a connection point with the at least one connecting conductor in the blade spanwise direction.Type: ApplicationFiled: November 17, 2021Publication date: December 14, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Syusaku Yamamoto, Tatsufumi Aoi, Naoto Murata, Yoichiro Tsumura
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Publication number: 20230265835Abstract: A wind turbine blade includes: a blade body; a down conductor extending along a longitudinal direction of the blade body; and at least a pair of magnetic field sensors disposed inside the blade body and at opposite positions across the down conductor, a pair of magnetic field sensors being configured to detect a local magnetic field at each of the positions. At least the pair of magnetic field sensors includes: a first sensor disposed on a first axis passing through an installation position of the down conductor in a cross section intersecting the longitudinal direction; and a second sensor disposed on a second axis passing through the installation position and being orthogonal to the first axis in the cross section.Type: ApplicationFiled: October 19, 2021Publication date: August 24, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tatsufumi Aoi, Syusaku Yamamoto, Naoto Murata, Yoichiro Tsumura
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Patent number: 11519390Abstract: A wind turbine blade includes a blade main body and a leading edge protector. The leading edge protector includes a conductive material and covers a leading edge of the blade main body. The leading edge protector is also electrically connected to a down conductor disposed in a hollow space enclosed by a skin in the blade main body or a conductive mesh member provided along an outer surface of the skin.Type: GrantFiled: May 7, 2021Date of Patent: December 6, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Naoto Murata, Syusaku Yamamoto, Yoichiro Tsumura, Tatsufumi Aoi, Akio Ikeda, Nobuyuki Kamihara, Takehiro Naka
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Publication number: 20220363014Abstract: Provided is a welding method including: a sheet disposition process of disposing a first and a second protection sheet such that the first and the second protection sheet come into contact with a first and a second composite material and disposing an energization sheet such that the energization sheet comes into contact with the first and the second protection sheet; and a welding process of applying a voltage to a pair of electrode portions disposed at the energization sheet and welding the first and the second composite material, the energization sheet contains the carbon fiber base material oriented in a first predetermined direction connecting the pair of electrode portions, and the first and the second protection sheet contain the carbon fiber base material oriented in a second predetermined direction that substantially perpendicularly intersects the first predetermined direction.Type: ApplicationFiled: December 6, 2021Publication date: November 17, 2022Inventors: Daisuke TANAKA, Shogo OTOBE, Yoichiro TSUMURA
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Publication number: 20210372374Abstract: A wind turbine blade includes a blade main body and a leading edge protector. The leading edge protector includes a conductive material and covers a leading edge of the blade main body. The leading edge protector is also electrically connected to at least one of a down conductor disposed in a hollow space enclosed by a skin in the blade main body and a conductive mesh member provided along an outer surface of the skin.Type: ApplicationFiled: May 7, 2021Publication date: December 2, 2021Inventors: Naoto MURATA, Syusaku YAMAMOTO, Yoichiro TSUMURA, Tatsufumi AOI, Akio IKEDA, Nobuyuki KAMIHARA, Takehiro NAKA
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Patent number: 10359778Abstract: An indoor monitoring system for a structure comprises an unmanned floating machine provided with a propeller to float and move in the air inside a structure; a distance measuring unit on said machine to measures a distance between said machine and an inner wall surface of the structure; an inertial measurement unit on said machine to identify the attitude of the body of said machine; an image-capturing unit on said machine to capture an image of a structural body on the side of said machine; a control unit which controls said machine remotely; a flight position information acquiring unit which uses information from the distance measuring unit and the inertial measurement unit to acquire information relating to the current position of said machine; and a monitor unit which displays image information from the image-capturing unit and the position information from the flight position information acquiring unit.Type: GrantFiled: January 20, 2015Date of Patent: July 23, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takayuki Kono, Yoichiro Tsumura
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Patent number: 10156517Abstract: This N2O analysis device is provided with: a light source (11) which radiates laser light onto an exhaust gas (5) containing N2O, H2O and CO2; a light receiver (13) which receives the laser light that has been radiated onto the exhaust gas (5); a light source control unit (14a) of a control device (14), which controls the wavelength of the laser light radiated by the light source (11) to between 3.84 ?m and 4.00 ?m; and a signal analyzing unit (14b) of the control device (14), which calculates the N2O concentration by means of infrared spectroscopy, using the laser light received by the light receiver (13) and the laser light controlled by the light source control unit (14a) of the control device (14).Type: GrantFiled: March 29, 2016Date of Patent: December 18, 2018Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Osamu Tadanaga, Akio Tokura, Kenji Muta, Shuuji Fujii, Yoichiro Tsumura, Tatsuyuki Nishimiya
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Patent number: 10101270Abstract: To provide an SO3 analysis device and analysis method capable of accurately and rapidly measuring the concentration of SO3 in exhaust gas without pre-processing. The present invention is provided with a light source (11) for radiating laser light (2) to exhaust gas (1) including SO3, CO2, and H2O, a photodetector (13) for receiving the laser light (2) radiated to the exhaust gas (1), a light source control unit (14a) of a control device (14) for controlling the wavelength of the laser light (2) radiated by the light source (11) so as to be 4.060 ?m to 4.192 ?m, and a concentration calculation unit (14b) of the control device (14) for calculating the SO3 concentration by infrared spectroscopy on the basis of the output from the photodetector (13) and a reference signal from the light source control unit (14a).Type: GrantFiled: March 29, 2016Date of Patent: October 16, 2018Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Akio Tokura, Osamu Tadanaga, Kenji Muta, Shuuji Fujii, Yoichiro Tsumura, Tatsuyuki Nishimiya
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Patent number: 9983237Abstract: A lightning current measuring device is provided with: a polarized light separation element which separates light output from a sensor fiber into horizontal and vertical components having orthogonal planes of polarization, a Faraday rotation angle calculation unit calculating a Faraday rotation angle through arc-sine processing of a digitized signal of the difference between the horizontal and vertical components converted to a signal through photoelectric conversion after separation by the polarized light separation element, amplifiers which amplify the horizontal and vertical components converted to a signal through photoelectric conversion after separation by the polarized light separation element, a Faraday rotation angle calculating unit which calculates a Faraday rotation angle based on a digitized signal of the difference between the amplified horizontal and vertical components, and current value conversion units converting current values based on the calculated Faraday rotation angles.Type: GrantFiled: March 24, 2014Date of Patent: May 29, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tatsufumi Aoi, Yoichiro Tsumura, Kiyoshi Kurosawa, Yutaka Kikuchihara
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Publication number: 20180095030Abstract: This N2O analysis device is provided with: a light source (11) which radiates laser light onto an exhaust gas (5) containing N2O, H2O and CO2; a light receiver (13) which receives the laser light that has been radiated onto the exhaust gas (5); a light source control unit (14a) of a control device (14), which controls the wavelength of the laser light radiated by the light source (11) to between 3.84 ?m and 4.00 ?m; and a signal analyzing unit (14b) of the control device (14), which calculates the N2O concentration by means of infrared spectroscopy, using the laser light received by the light receiver (13) and the laser light controlled by the light source control unit (14a) of the control device (14).Type: ApplicationFiled: March 29, 2016Publication date: April 5, 2018Inventors: Osamu TADANAGA, Akio TOKURA, Kenji MUTA, Shuuji FUJII, Yoichiro TSUMURA, Tatsuyuki NISHIMIYA
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Publication number: 20180080866Abstract: To provide an SO3 analysis device and analysis method capable of accurately and rapidly measuring the concentration of SO3 in exhaust gas without pre-processing. The present invention is provided with a light source (11) for radiating laser light (2) to exhaust gas (1) including SO3, CO2, and H2O, a photodetector (13) for receiving the laser light (2) radiated to the exhaust gas (1), a light source control unit (14a) of a control device (14) for controlling the wavelength of the laser light (2) radiated by the light source (11) so as to be 4.060 ?m to 4.192 ?m, and a concentration calculation unit (14b) of the control device (14) for calculating the SO3 concentration by infrared spectroscopy on the basis of the output from the photodetector (13) and a reference signal from the light source control unit (14a).Type: ApplicationFiled: March 29, 2016Publication date: March 22, 2018Inventors: Akio TOKURA, Osamu TADANAGA, Kenji MUTA, Shuuji FUJII, Yoichiro TSUMURA, Tatsuyuki NISHIMIYA
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Publication number: 20170139410Abstract: An indoor monitoring system for a structure comprises an unmanned floating machine provided with a propeller to float and move in the air inside a structure; a distance measuring unit on said machine to measures a distance between said machine and an inner wall surface of the structure; an inertial measurement unit on said machine to identify the attitude of the body of said machine; an image-capturing unit on said machine to capture an image of a structural body on the side of said machine; a control unit which controls said machine remotely; a flight position information acquiring unit which uses information from the distance measuring unit and the inertial measurement unit to acquire information relating to the current position of said machine; and a monitor unit which displays image information from the image-capturing unit and the position information from the flight position information acquiring unit.Type: ApplicationFiled: January 20, 2015Publication date: May 18, 2017Inventors: Takayuki KONO, Yoichiro TSUMURA
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Publication number: 20160041205Abstract: A lightning current measuring device is provided with: a polarized light separation element which separates light output from a sensor fiber into horizontal and vertical components having orthogonal planes of polarization, a Faraday rotation angle calculation unit calculating a Faraday rotation angle through arc-sine processing of a digitized signal of the difference between the horizontal and vertical components converted to a signal through photoelectric conversion after separation by the polarized light separation element, amplifiers which amplify the horizontal and vertical components converted to a signal through photoelectric conversion after separation by the polarized light separation element, a Faraday rotation angle calculating unit which calculates a Faraday rotation angle based on a digitized signal of the difference between the amplified horizontal and vertical components, and current value conversion units converting current values based on the calculated Faraday rotation angles.Type: ApplicationFiled: March 24, 2014Publication date: February 11, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tatsufumi AOI, Yoichiro TSUMURA, Kiyoshi KUROSAWA, Yutaka KIKUCHIHARA
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Patent number: 9005390Abstract: A room temperature bonding apparatus includes angle adjustment means supporting a first sample stage holding a first substrate so as to be able to change a direction of the first sample stage; a first driving device driving the first stage in a first direction; a second driving device driving a second sample stage holding a second substrate in a second direction not parallel to the first direction; and a carriage support table supporting the second sample stage in the first direction when the second substrate and the first substrate are brought into contact. The apparatus can impose a load exceeding a withstand load of the second driving device on the first and second substrates. Further, the apparatus uses angle adjustment means to change direction of the first substrate to be parallel with the second substrate and uniformly impose the larger load on a bonding surface.Type: GrantFiled: June 22, 2012Date of Patent: April 14, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takeshi Tsuno, Takayuki Goto, Masato Kinouchi, Satoshi Tawara, Jun Utsumi, Yoichiro Tsumura, Kensuke Ide, Takenori Suzuki
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Patent number: 8857487Abstract: A room temperature bonding apparatus includes: an angle adjustment mechanism that supports a first sample stage holding a first substrate to a first stage so as to be able to change a direction of the first sample stage; a first driving device that drives the first stage in a first direction; a second driving device that drives a second sample stage holding a second substrate in a second direction not parallel to the first direction; and a carriage support table that supports the second sample stage in the first direction when the second substrate and the first substrate are brought into press contact with each other. In this case, the room temperature bonding apparatus can impose a larger load exceeding a withstand load of the second driving device on the first substrate and the second substrate.Type: GrantFiled: March 11, 2008Date of Patent: October 14, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takeshi Tsuno, Takayuki Goto, Masato Kinouchi, Satoshi Tawara, Jun Utsumi, Yoichiro Tsumura, Kensuke Ide, Takenori Suzuki
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Patent number: 8794924Abstract: A rotating body includes a rotor disk 10 that has a moving blade fitting groove 11 that is annularly provided along the outer circumference and a moving blade lead-in hole 12 that is provided in the outer circumference and is in communication with the moving blade fitting groove 11; a plurality of moving blades 20 that are consecutively provided in the outer circumference and that each have a blade root 21 that is fitted in the moving blade fitting groove 11 and a wing body 23 that projects to the outer side of the rotor disk 10; two special moving blades 20A and 20B that each have a blade root 21 of which a portion is fitted in the moving blade fitting groove 11 and a wing body 23 that projects to the outer side of the rotor disk 10, and that by mutually adjoining block the moving blade lead-in hole 12; and a tensioning key 13 that is inserted between the moving blades 20, in which the tensioning key 13 is provided with an insertion portion whose thickness dimension in the circumferential direction graduallyType: GrantFiled: July 8, 2010Date of Patent: August 5, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoichiro Tsumura, Kyoichi Ikeno
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Patent number: 8737719Abstract: An alignment unit control apparatus according to the present invention includes: an imaging section configured to control cameras to image a plurality of regions on a surface of a substrate to generate a plurality of images; a region detecting section configured to select a detection region from the plurality of regions based on the plurality of images; and an aligning section configured to align the substrate based on an alignment image obtained by imaging a mark of the substrate in the detection region by one of the plurality of cameras. For this reason, the alignment unit control apparatus does not need to have another mechanism for the purpose of positioning the mark for alignment in the field of vision of the camera, and can more easily be manufactured, and a region of an alignment mark can be detected more easily.Type: GrantFiled: October 28, 2009Date of Patent: May 27, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Fast CorporationInventors: Yoichiro Tsumura, Takanori Inaba
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Publication number: 20140119919Abstract: In lightning protection equipment of a wind turbine, it is required to ease the maintenance with maintaining high safety. The lightning current received by a receptor of a blade is conducted to an earth line in the blade. The earth line is conducted to the internal space of the rotor head via the internal side space of the bearing for changing the pitch angle of the blade. It is possible to conduct the lightning current to the rotor head side without using the bearing as the current route and without using a sliding or wearing member such as a brash or the like.Type: ApplicationFiled: May 8, 2012Publication date: May 1, 2014Applicant: Mitsubishi Heavy Industries, LTD.Inventors: Takehiro Naka, Yoichiro Tsumura, Takatoshi Matsushita
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Publication number: 20120285624Abstract: A room temperature bonding apparatus includes angle adjustment means supporting a first sample stage holding a first substrate so as to be able to change a direction of the first sample stage; a first driving device driving the first stage in a first direction; a second driving device driving a second sample stage holding a second substrate in a second direction not parallel to the first direction; and a carriage support table supporting the second sample stage in the first direction when the second substrate and the first substrate are brought into contact. The apparatus can impose a load exceeding a withstand load of the second driving device on the first and second substrates. Further, the apparatus uses angle adjustment means to change direction of the first substrate to be parallel with the second substrate and uniformly impose the larger load on a bonding surface.Type: ApplicationFiled: June 22, 2012Publication date: November 15, 2012Inventors: Takeshi TSUNO, Takayuki GOTO, Masato KINOUCHI, Satoshi TAWARA, Jun UTSUMI, Yoichiro TSUMURA, Kensuke IDE, Takenori SUZUKI