Patents by Inventor Hiroaki Hatanaka
Hiroaki Hatanaka 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: 20220381741Abstract: A damage evaluation device includes: a phased array probe that irradiates an ultrasonic signal from a surface of an inspection metal toward an inside of the inspection metal and detects a reflection signal reflected in a predetermined region inside the inspection metal; and an arithmetic processor. The arithmetic processor sets planes parallel to each other in an inspection region, calculates pixel data by quantifying the reflection signal from segments set in each of the planes; calculates a scattering degree of the pixel data, and evaluates damage of the inspection metal based on the scattering degree.Type: ApplicationFiled: August 3, 2022Publication date: December 1, 2022Applicant: IHI CORPORATIONInventors: Yuuki NAGAI, Masahiro HATO, Hiroaki HATANAKA
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Patent number: 10877002Abstract: Provided is an ultrasonic flaw detection device including: a transmission window; a transmission probe, which is configured to transmit an ultrasonic beam from the transmission window toward a range required to be inspected, which is set in advance, of an inspection surface of an object to be inspected; a reception window, which is arranged in a relationship with respect to the transmission window in which an ultrasonic wave that has been reflected outside the range required to be inspected is inhibited from reaching the reception window; and a reception probe, which is configured to receive an ultrasonic wave that has passed through the reception window.Type: GrantFiled: July 18, 2018Date of Patent: December 29, 2020Assignee: IHI CORPORATIONInventors: Yuto Asaumi, Hiroaki Hatanaka, Shigeki Sakakura
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Patent number: 10656121Abstract: Provided are a method and device for detecting arrangement disorder of fibers in a conductive composite material. A coil (7) is disposed at a position at which the coil (7) faces the conductive composite material, and thereby a current can be applied to the conductive composite material. Thus, work or the like for attaching electrodes to the conductive composite material is not required. As a result, the arrangement disorder of the fibers in the conductive composite material can easily be detected. A method for detecting meandering of fibers in a conductive composite material includes a step of disposing a magnetic field sensor (8) at a position at which the magnetic field sensor (8) faces a surface (Sa) of the conductive composite material such that a direction (D) of a magnetosensitive axis is horizontal with the surface (Sa) and is parallel to coil faces (7e).Type: GrantFiled: July 8, 2016Date of Patent: May 19, 2020Assignee: IHI CorporationInventors: Akinori Tsuda, Hiroki Kawai, Hiroaki Hatanaka, Yuichi Yamaguchi, Koichi Inagaki
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Patent number: 10605777Abstract: Provided is a method for inspecting an electroconductive composite material including disposing a detection magnetic field measurement unit, disposing a correction magnetic field measurement unit, applying a current, acquiring a detection magnetic field strength, acquiring a correction magnetic field strength, and detecting a portion in which arrangement of carbon fibers is disordered. The operation includes calculating a correction coefficient using the correction magnetic field strength and correcting the detection magnetic field strength using the correction coefficient.Type: GrantFiled: August 15, 2016Date of Patent: March 31, 2020Assignee: IHI CorporationInventors: Hiroki Kawai, Akinori Tsuda, Hiroaki Hatanaka, Yuichi Yamaguchi, Koichi Inagaki
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Publication number: 20190079054Abstract: Provided are a method and device for detecting arrangement disorder of fibers in a conductive composite material. A coil (7) is disposed at a position at which the coil (7) faces the conductive composite material, and thereby a current can be applied to the conductive composite material. Thus, work or the like for attaching electrodes to the conductive composite material is not required. As a result, the arrangement disorder of the fibers in the conductive composite material can easily be detected. A method for detecting meandering of fibers in a conductive composite material includes a step of disposing a magnetic field sensor (8) at a position at which the magnetic field sensor (8) faces a surface (Sa) of the conductive composite material such that a direction (D) of a magnetosensitive axis is horizontal with the surface (Sa) and is parallel to coil faces (7e).Type: ApplicationFiled: July 8, 2016Publication date: March 14, 2019Applicant: IHI CorporationInventors: Akinori TSUDA, Hiroki KAWAI, Hiroaki HATANAKA, Yuichi YAMAGUCHI, Koichi INAGAKI
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Publication number: 20190072521Abstract: Provided is a method for inspecting an electroconductive composite material including disposing a detection magnetic field measurement unit, disposing a correction magnetic field measurement unit, applying a current, acquiring a detection magnetic field strength, acquiring a correction magnetic field strength, and detecting a portion in which arrangement of carbon fibers is disordered. The operation includes calculating a correction coefficient using the correction magnetic field strength and correcting the detection magnetic field strength using the correction coefficient.Type: ApplicationFiled: August 15, 2016Publication date: March 7, 2019Applicant: IHI CorporationInventors: Hiroki KAWAI, Akinori TSUDA, Hiroaki HATANAKA, Yuichi YAMAGUCHI, Koichi INAGAKI
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Patent number: 10132778Abstract: A pair of electrodes is connected to a test specimen in order to apply an electric current to the test specimen in the direction of a conductive fiber of each conductive fiber woven fabric of a plurality of prepregs as targets for verification of the presence or absence of waviness, among a plurality of prepregs constituting the test specimen composed of a conductive composite material, and then a magnetic field sensor is relatively scanned over the test specimen, while applying an electric current between the pair of electrodes, to determine a portion of the test specimen where a magnetic field variation is detected by the scanning of the magnetic field sensor as a portion where waviness of the conductive fibers of the conductive fiber woven fabric of the plurality of prepregs as targets for verification of the presence or absence of waviness is present. Thus, it is possible to grasp, for example, the condition of fibers of the conductive composite material in the test specimen as a whole.Type: GrantFiled: March 30, 2016Date of Patent: November 20, 2018Assignee: IHI CorporationInventors: Akinori Tsuda, Hiroaki Hatanaka, Shinji Muto, Koichi Inagaki, Hiroyuki Hishida, Akiyoshi Sato
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Publication number: 20180321196Abstract: Provided is an ultrasonic flaw detection device including: a transmission window; a transmission probe, which is configured to transmit an ultrasonic beam from the transmission window toward a range required to be inspected, which is set in advance, of an inspection surface of an object to be inspected; a reception window, which is arranged in a relationship with respect to the transmission window in which an ultrasonic wave that has been reflected outside the range required to be inspected is inhibited from reaching the reception window; and a reception probe, which is configured to receive an ultrasonic wave that has passed through the reception window.Type: ApplicationFiled: July 18, 2018Publication date: November 8, 2018Applicant: IHI CORPORATIONInventors: Yuto ASAUMI, Hiroaki HATANAKA, Shigeki SAKAKURA
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Patent number: 9612226Abstract: A method for measuring the degree of fusion involves: a step for creating a dividing pulse amplitude curve by using a probe that emits ultrasound beams; a step for scanning the probe that emits ultrasound beams at a predetermined angle on a surface that has weld beads of multiple welding specimens having different degrees of fusion and for obtaining beam path length information from the dividing pulse amplitude curve and the height of an F echo that returned to the probe after hitting the fused section of a welding site; and a step for obtaining a regression formula expressing the relationship between the beam path length information and the degree of fusion.Type: GrantFiled: July 31, 2013Date of Patent: April 4, 2017Assignees: IHI Infrastructure Systems Co., Ltd., IHI CorporationInventors: Yuji Takeda, Takahiro Yamagami, Kunio Yonekura, Hiroaki Hatanaka, Hiroki Kawai, Arisa Yanagihara
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Publication number: 20160209365Abstract: A pair of electrodes is connected to a test specimen in order to apply an electric current to the test specimen in the direction of a conductive fiber of each conductive fiber woven fabric of a plurality of prepregs as targets for verification of the presence or absence of waviness, among a plurality of prepregs constituting the test specimen composed of a conductive composite material, and then a magnetic field sensor is relatively scanned over the test specimen, while applying an electric current between the pair of electrodes, to determine a portion of the test specimen where a magnetic field variation is detected by the scanning of the magnetic field sensor as a portion where waviness of the conductive fibers of the conductive fiber woven fabric of the plurality of prepregs as targets for verification of the presence or absence of waviness is present. Thus, it is possible to grasp, for example, the condition of fibers of the conductive composite material in the test specimen as a whole.Type: ApplicationFiled: March 30, 2016Publication date: July 21, 2016Applicant: IHI CORPORATIONInventors: Akinori TSUDA, Hiroaki HATANAKA, Shinji MUTO, Koichi INAGAKI, Hiroyuki HISHIDA, Akiyoshi SATO
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Publication number: 20150300992Abstract: A method for measuring the degree of fusion involves: a step for creating a dividing pulse amplitude curve by using a probe that emits ultrasound beams; a step for scanning the probe that emits ultrasound beams at a predetermined angle on a surface that has weld beads of multiple welding specimens having different degrees of fusion and for obtaining beam path length information from the dividing pulse amplitude curve and the height of an F echo that returned to the probe after hitting the fused section of a welding site; and a step for obtaining a regression formula expressing the relationship between the beam path length information and the degree of fusion.Type: ApplicationFiled: July 31, 2013Publication date: October 22, 2015Inventors: Yuji Takeda, Takahiro Yamagami, Kunio Yonekura, Hiroaki Hatanaka, Hiroki Kawai, Arisa Yanagihara
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Publication number: 20150153313Abstract: An interface inspection method according to the present invention includes a step S1 of transmitting ultrasound to a composite structure to be inspected, via an ultrasound generating unit adapted to generate ultrasound of a frequency suitable for a member making up the composite structure and acquiring a signal waveform by receiving a reflected wave from the composite structure using a receiving unit; a step S2 of performing signal processing on the acquired signal waveform and acquiring signal amplitude versus frequency characteristics; and a step S3 of determining an interface condition of the composite structure based on an amplitude in a frequency band unique to the composite structure as observed on the signal waveform subjected to signal processing.Type: ApplicationFiled: February 9, 2015Publication date: June 4, 2015Applicants: IHI INFRASTRUCTURE SYSTEMS CO., LTD., IHI CORPORATIONInventors: Arisa KURASHIGE, Hiroaki HATANAKA, Hiroki KAWAI
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Publication number: 20140354274Abstract: An eddy-current flaw detection method includes a synchronization step (S3, S4) of synchronizing the phase of an exciting voltage applied by coil driving means to an exciting coil for generating an eddy current in a test object with the phase of a driving voltage, higher in frequency than the exciting voltage, applied by device driving means to a magnetoimpedance effect device for detecting the variation of a magnetic field arising in the exciting coil; and a magnetic field detection step (S5) of detecting the variation of the magnetic field arising in the exciting coil due to the eddy current generated in the test object using the magnetoimpedance effect device.Type: ApplicationFiled: August 19, 2014Publication date: December 4, 2014Applicant: IHI CORPORATIONInventors: Akinori TSUDA, Hiroaki HATANAKA, Hiroki KAWAI
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Patent number: 8175820Abstract: An object of the present invention is to quantitatively evaluate a distribution of defects which are generated within an inspection material.Type: GrantFiled: March 24, 2006Date of Patent: May 8, 2012Assignee: IHI CorporationInventors: Hiroaki Hatanaka, Nobukazu Ido, Minoru Tagami
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Patent number: 7944203Abstract: A corrosion evaluation device for performing a quantitative evaluation of corrosion by measuring a quantity of decrease in the thickness of a magnetic material which is covered by a non magnetic material or a magnetic material which is not covered by a non magnetic material which includes: a magnetic field generating device for generating such a magnetic field that includes the magnetic material in a magnetic path, a Giant Magnet-Resistive effect (GMR) sensor provided with a GMR sensor for detecting a magnetic flux leakage with regard to the magnetic material and converts a change in the magnetic flux into an electrical signal, a thickness reduction calculation portion for calculating a quantity of decrease in the thickness of the magnetic material based on the electrical signal. The corrosion evaluation device precisely performs a quantitative evaluation of corrosion even when the magnetic material, which is to be evaluated, is covered by a non magnetic material.Type: GrantFiled: December 18, 2006Date of Patent: May 17, 2011Assignee: IHI CorporationInventors: Hiroaki Hatanaka, Katsuya Toda, Minoru Tagami
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Publication number: 20090134867Abstract: A corrosion evaluation device for performing a quantitative evaluation of corrosion by measuring a quantity of decrease in the thickness of a magnetic material which is covered by a non magnetic material or a magnetic material which is not covered by a non magnetic material which includes: a magnetic field generating device for generating such a magnetic field that includes the magnetic material in a magnetic path, a Giant Magnet-Resistive effect (GMR) sensor provided with a GMR sensor for detecting a magnetic flux leakage with regard to the magnetic material and converts a change in the magnetic flux into an electrical signal, a thickness reduction calculation portion for calculating a quantity of decrease in the thickness of the magnetic material based on the electrical signal. The corrosion evaluation device precisely performs a quantitative evaluation of corrosion even when the magnetic material, which is to be evaluated, is covered by a non magnetic material.Type: ApplicationFiled: December 18, 2006Publication date: May 28, 2009Inventors: Hiroaki Hatanaka, Katsuya Toda, Minoru Tagami
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Publication number: 20090105967Abstract: An object of the present invention is to quantitatively evaluate a distribution of defects which are generated within an inspection material.Type: ApplicationFiled: March 24, 2006Publication date: April 23, 2009Inventors: Hiroaki Hatanaka, Nobukazu Ido, Minoru Tagami
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Patent number: 6640632Abstract: In the ultrasonic flaw detection method and apparatus, wideband longitudinal ultrasonic waves are irradiated from an ultrasonic wave generator probe onto a weld portion of a coarse grained material; from the waveforms of flaw detection echoes that are subsequently obtained, the highest frequency component that can be extracted using time frequency analysis is then extracted; subsequent ½ magnification frequency components are then extracted sequentially; waveforms of a necessary plurality of frequency bands from among each of the frequency bands that were extracted and have undergone waveform separation are then multiplied, and waveform peaks that are formed by the multiplication are detected as being defect portion echoes generated by defect portions in the coarse grained material weld portion; and, as a result, information on the defect portion is obtained from the detected defect portion echo.Type: GrantFiled: April 30, 2002Date of Patent: November 4, 2003Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.Inventors: Hiroaki Hatanaka, Saburo Shibata, Takahiro Arakawa
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Publication number: 20030200809Abstract: In the ultrasonic flaw detection method and apparatus, wideband longitudinal ultrasonic waves are irradiated from an ultrasonic wave generator probe onto a weld portion of a coarse grained material; from the waveforms of flaw detection echoes that are subsequently obtained, the highest frequency component that can be extracted using time frequency analysis is then extracted; subsequent ½ magnification frequency components are then extracted sequentially; waveforms of a necessary plurality of frequency bands from among each of the frequency bands that were extracted and have undergone waveform separation are then multiplied, and waveform peaks that are formed by the multiplication are detected as being defect portion echoes generated by defect portions in the coarse grained material weld portion; and, as a result, information on the defect portion is obtained from the detected defect portion echo.Type: ApplicationFiled: April 30, 2002Publication date: October 30, 2003Inventors: Hiroaki Hatanaka, Saburo Shibata, Takahiro Arakawa