Patents by Inventor Takeshi Murai
Takeshi Murai 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: 11946112Abstract: A high-strength steel sheet of the present invention has a specific chemical composition. Furthermore, in the steel sheet, a degree of Mn segregation in a specific region is 1.5 or less; a maximum P concentration in a specific region is 0.08 mass % or less; in a specific region, at least one specific MnS particle group is present, the number of specific MnS particle groups is 2.0 or fewer per 1 mm2, and the number of specific oxide-based inclusions is 8 or fewer per 1 mm2; of all oxide-based inclusions, oxide-based inclusions having a specific composition are present in a number ratio of 80% or greater; the microstructure includes, in terms of a volume fraction, 30 to 95% martensite, 5 to 70% ferrite phase, less than 30% (and 0% or greater) bainite, and less than 2.0% (and 0% or greater) austenite phase; and a tensile strength is 980 MPa or greater.Type: GrantFiled: August 22, 2019Date of Patent: April 2, 2024Assignee: JFE Steel CorporationInventors: Yoshihiko Ono, Yuma Honda, Shimpei Yoshioka, Koichi Taniguchi, Hiroshi Matsuda, Takeshi Murai, Nobuyuki Nakamura
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Publication number: 20240007727Abstract: A depth acquisition device includes memory and processor performing: acquiring, from the memory, intensities of infrared light emitted from a light source and measured by imaging with the infrared light reflected on a subject by pixels in an imaging element; generating a depth image by calculating a distance to the subject as a depth for each pixel based on an intensity received by the pixel; acquiring, from the memory, a visible light image generated by imaging, with visible light, a substantially same scene with a substantially same viewpoint and at a substantially same timing as those of imaging the infrared light image; detecting, from the visible light image, an edge region including an edge along a direction perpendicular to a direction of movement of the visible light image; and correcting, in the depth image, a depth of a target region corresponding to the edge region in the depth image.Type: ApplicationFiled: July 26, 2023Publication date: January 4, 2024Inventors: Takeo AZUMA, Satoshi SATO, Nobuhiko WAKAI, Kohsuke YOSHIOKA, Noritaka SHIMIZU, Yoshinao KAWAI, Takaaki AMADA, Yoko KAWAI, Takeshi MURAI, Hiroki TAKEUCHI
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Publication number: 20230340629Abstract: A molten steel refining method increases a circulating rate using an RH vacuum degassing apparatus. An immersion depth of an immersion tube into molten steel inside a vacuum tank or a circulating gas flow rate is determined such that a stirring power energy density ? for the molten steel meets the following formulae: ? = [371GT × ln{ 1 + (?LgH0/P)}]/Wv, Wv = (?·Dv2/4) × H0 × ?L/1000, H0 = hv + L - hG, hv = (P0 - P)/(?Lg) + 1 -L, 1.35 × 105 × DU/WV < ? < 2.1 × 104.Type: ApplicationFiled: June 16, 2021Publication date: October 26, 2023Applicant: JFE STEEL CORPORATIONInventors: Keisuke MIZOBATA, Akifumi HARADA, Yoshie NAKAI, Takeshi MURAI, Hidemitsu NEGISHI
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Patent number: 11758247Abstract: A depth acquisition device includes memory and processor performing: acquiring, from the memory, intensities of infrared light emitted from a light source and measured by imaging with the infrared light reflected on a subject by pixels in an imaging element; generating a depth image by calculating a distance to the subject as a depth for each pixel based on an intensity received by the pixel; acquiring, from the memory, a visible light image generated by imaging, with visible light, a substantially same scene with a substantially same viewpoint and at a substantially same timing as those of imaging the infrared light image; detecting, from the visible light image, an edge region including an edge along a direction perpendicular to a direction of movement of the visible light image; and correcting, in the depth image, a depth of a target region corresponding to the edge region in the depth image.Type: GrantFiled: January 21, 2021Date of Patent: September 12, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTDInventors: Takeo Azuma, Satoshi Sato, Nobuhiko Wakai, Kohsuke Yoshioka, Noritaka Shimizu, Yoshinao Kawai, Takaaki Amada, Yoko Kawai, Takeshi Murai, Hiroki Takeuchi
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Publication number: 20230215029Abstract: A depth acquisition device includes a memory and a processor. The processor performs: acquiring timing information indicating a timing at which a light source irradiates a subject with infrared light; acquiring, from the memory, an infrared light image generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring, from the memory, a visible light image generated by imaging a substantially same scene as the scene of the infrared light image, with visible light from a substantially same viewpoint as a viewpoint of imaging the infrared light image at a substantially same time as a time of imaging the infrared light image; detecting a flare region from the infrared light image; and estimating a depth of the flare region based on the infrared light image, the visible light image, and the flare region.Type: ApplicationFiled: March 9, 2023Publication date: July 6, 2023Inventors: Satoshi SATO, Takeo AZUMA, Nobuhiko WAKAI, Kohsuke YOSHIOKA, Noritaka SHIMIZU, Yoshinao KAWAI, Takaaki AMADA, Yoko KAWAI, Takeshi MURAI, Hiroki TAKEUCHI
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Patent number: 11636615Abstract: A depth acquisition device includes a memory and a processor. The processor performs: acquiring timing information indicating a timing at which a light source irradiates a subject with infrared light; acquiring, from the memory, an infrared light image generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring, from the memory, a visible light image generated by imaging a substantially same scene as the scene of the infrared light image, with visible light from a substantially same viewpoint as a viewpoint of imaging the infrared light image at a substantially same time as a time of imaging the infrared light image; detecting a flare region from the infrared light image; and estimating a depth of the flare region based on the infrared light image, the visible light image, and the flare region.Type: GrantFiled: January 28, 2021Date of Patent: April 25, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Satoshi Sato, Takeo Azuma, Nobuhiko Wakai, Kohsuke Yoshioka, Noritaka Shimizu, Yoshinao Kawai, Takaaki Amada, Yoko Kawai, Takeshi Murai, Hiroki Takeuchi
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Publication number: 20230033540Abstract: To provide a high-strength seamless stainless steel pipe for oil well that has high strength, is excellent in hot workability, has excellent carbon dioxide gas corrosion resistance, and is excellent in SSC resistance under a low temperature environment. A high-strength seamless stainless steel pipe for oil well having a composition containing the particular components, the balance being Fe and unavoidable impurities, and satisfying certain expressions, having a number density of an inclusion having a major axis of 5 ?m or more and 0.5<Ti/(Ti+Al+Mg+Ca)<1.0 of 0.5 per mm2 or more and 3 per mm2 or less, and having a yield strength of 655 MPa or more, wherein in 0.5<Ti/(Ti+Al+Mg+Ca)<1.0, Ti, Al, Mg, and Ca represent the contents (% by mass) of the elements in the inclusion, and an element that is not contained is designated as 0.Type: ApplicationFiled: November 20, 2020Publication date: February 2, 2023Applicant: JFE Steel CorporationInventors: Kenichiro Eguchi, Takeshi Murai, Mami Endo, Masao Yuga
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Patent number: 11514595Abstract: A depth acquisition device includes a memory and a processor. The processor performs; acquiring timing information indicating a timing at which a light source irradiates a subject with infrared light; acquiring an infrared light image stored in the memory, the infrared light image being generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring a visible light image stored in the memory, the visible light image being generated by imaging a substantially same scene as that of the infrared light image, with visible light from a substantially same viewpoint and at a substantially same imaging time of those of the infrared light image; detecting a dust region showing dust from the infrared light image; and estimating a depth of the dust region based on the infrared light image, the visible light image, and the dust region.Type: GrantFiled: January 25, 2021Date of Patent: November 29, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Satoshi Sato, Takeo Azuma, Nobuhiko Wakai, Kohsuke Yoshioka, Noritaka Shimizu, Yoshinao Kawai, Takaaki Amada, Yoko Kawai, Takeshi Murai, Hiroki Takeuchi
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Patent number: 11373324Abstract: A depth acquisition device includes a memory and a processor performing: acquiring, from the memory, intensities of infrared light measured by imaging with infrared light emitted from a light source and reflected on a subject by pixels in an imaging element; generating a depth image by calculating the distance for each pixel based on the intensities; acquiring, from the memory, a visible light image generated by imaging, with visible light, the substantially same scene from the substantially same viewpoint at the substantially same timing as those of the infrared light image; detecting a lower reflection region showing an object having a lower reflectivity from the infrared light image in accordance with the infrared light image and the visible light image; correcting a corresponding lower reflection region in the depth image in accordance with the visible light image; and outputting the depth image with the corrected lower reflection region.Type: GrantFiled: January 19, 2021Date of Patent: June 28, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takeo Azuma, Satoshi Sato, Nobuhiko Wakai, Kohsuke Yoshioka, Noritaka Shimizu, Yoshinao Kawai, Takaaki Amada, Yoko Kawai, Takeshi Murai, Hiroki Takeuchi
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Publication number: 20210340641Abstract: A high-strength steel sheet of the present invention has a specific chemical composition. Furthermore, in the steel sheet, a degree of Mn segregation in a specific region is 1.5 or less; a maximum P concentration in a specific region is 0.08 mass % or less; in a specific region, the number of specific MnS particle groups is 2.0 or fewer per 1 mm2, and the number of specific oxide-based inclusions is 8 or fewer per 1 mm2; of all of the oxide-based inclusions, oxide-based inclusions having a specified composition are present in a number ratio of 80% or greater; the microstructure includes, in terms of a volume fraction, 30 to 95% martensite and bainite in total, 5 to 70% ferrite phase, and less than 3% (and 0% or greater) austenite phase; and a tensile strength is 980 MPa or greater.Type: ApplicationFiled: August 22, 2019Publication date: November 4, 2021Applicant: JFE Steel CorporationInventors: Yoshihiko Ono, Yuma Honda, Shimpei Yoshioka, Koichi Taniguchi, Nobuyuki Nakamura, Takeshi Murai
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Publication number: 20210332454Abstract: A high-strength steel sheet of the present invention has a specific chemical composition. Furthermore, in the steel sheet, a degree of Mn segregation in a specific region is 1.5 or less; a maximum P concentration in a specific region is 0.08 mass % or less; in a specific region, at least one specific MnS particle group is present, the number of specific MnS particle groups is 2.0 or fewer per 1 mm2, and the number of specific oxide-based inclusions is 8 or fewer per 1 mm2; of all oxide-based inclusions, oxide-based inclusions having a specific composition are present in a number ratio of 80% or greater; the microstructure includes, in terms of a volume fraction, 30 to 95% martensite, 5 to 70% ferrite phase, less than 30% (and 0% or greater) bainite, and less than 2.0% (and 0% or greater) austenite phase; and a tensile strength is 980 MPa or greater.Type: ApplicationFiled: August 22, 2019Publication date: October 28, 2021Applicant: JFE Steel CorporationInventors: Yoshihiko Ono, Yuma Honda, Shimpei Yoshioka, Koichi Taniguchi, Hiroshi Matsuda, Takeshi Murai, Nobuyuki Nakamura
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Publication number: 20210150742Abstract: A depth acquisition device includes a memory and a processor. The processor performs: acquiring timing information indicating a timing at which a light source irradiates a subject with infrared light; acquiring, from the memory, an infrared light image generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring, from the memory, a visible light image generated by imaging a substantially same scene as the scene of the infrared light image, with visible light from a substantially same viewpoint as a viewpoint of imaging the infrared light image at a substantially same time as a time of imaging the infrared light image; detecting a flare region from the infrared light image; and estimating a depth of the flare region based on the infrared light image, the visible light image, and the flare region.Type: ApplicationFiled: January 28, 2021Publication date: May 20, 2021Inventors: Satoshi SATO, Takeo AZUMA, Nobuhiko WAKAI, Kohsuke YOSHIOKA, Noritaka SHIMIZU, Yoshinao KAWAI, Takaaki AMADA, Yoko KAWAI, Takeshi MURAI, Hiroki TAKEUCHI
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Publication number: 20210144314Abstract: A depth acquisition device includes memory and processor performing: acquiring, from the memory, intensities of infrared light emitted from a light source and measured by imaging with the infrared light reflected on a subject by pixels in an imaging element; generating a depth image by calculating a distance to the subject as a depth for each pixel based on an intensity received by the pixel; acquiring, from the memory, a visible light image generated by imaging, with visible light, a substantially same scene with a substantially same viewpoint and at a substantially same timing as those of imaging the infrared light image; detecting, from the visible light image, an edge region including an edge along a direction perpendicular to a direction of movement of the visible light image; and correcting, in the depth image, a depth of a target region corresponding to the edge region in the depth image.Type: ApplicationFiled: January 21, 2021Publication date: May 13, 2021Inventors: Takeo AZUMA, Satoshi SATO, Nobuhiko WAKAI, Kohsuke YOSHIOKA, Noritaka SHIMIZU, Yoshinao KAWAI, Takaaki AMADA, Yoko KAWAI, Takeshi MURAI, Hiroki TAKEUCHI
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Publication number: 20210142496Abstract: A depth acquisition device includes a memory and a processor. The processor performs; acquiring timing information indicating a timing at which a light source irradiates a subject with infrared light; acquiring an infrared light image stored in the memory, the infrared light image being generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring a visible light image stored in the memory, the visible light image being generated by imaging a substantially same scene as that of the infrared light image, with visible light from a substantially same viewpoint and at a substantially same imaging time of those of the infrared light image; detecting a dust region showing dust from the infrared light image; and estimating a depth of the dust region based on the infrared light image, the visible light image, and the dust region.Type: ApplicationFiled: January 25, 2021Publication date: May 13, 2021Inventors: Satoshi SATO, Takeo AZUMA, Nobuhiko WAKAI, Kohsuke YOSHIOKA, Noritaka SHIMIZU, Yoshinao KAWAI, Takaaki AMADA, Yoko KAWAI, Takeshi MURAI, Hiroki TAKEUCHI
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Publication number: 20210142500Abstract: A depth acquisition device includes a memory and a processor performing: acquiring, from the memory, intensities of infrared light measured by imaging with infrared light emitted from a light source and reflected on a subject by pixels in an imaging element; generating a depth image by calculating the distance for each pixel based on the intensities; acquiring, from the memory, a visible light image generated by imaging, with visible light, the substantially same scene from the substantially same viewpoint at the substantially same timing as those of the infrared light image; detecting a lower reflection region showing an object having a lower reflectivity from the infrared light image in accordance with the infrared light image and the visible light image; correcting a corresponding lower reflection region in the depth image in accordance with the visible light image; and outputting the depth image with the corrected lower reflection region.Type: ApplicationFiled: January 19, 2021Publication date: May 13, 2021Inventors: Takeo AZUMA, Satoshi SATO, Nobuhiko WAKAI, Kohsuke YOSHIOKA, Noritaka SHIMIZU, Yoshinao KAWAI, Takaaki AMADA, Yoko KAWAI, Takeshi MURAI, Hiroki TAKEUCHI
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Patent number: 10072320Abstract: A method of producing a steel material includes a step of adding Ca to molten steel with an amount of Ca adjusted within a range satisfying the formula (1) below: 0.5 ? { Ca · y ? / ? 100 - ( [ S · W ? / ? 100 ) · 40.08 ? / ? 32.07 } ? 56.08 40.08 ( [ Al 2 ? O 3 ] · W ? / ? 100 ) ? 1.5 ( 1 ) where Ca is the amount [kg] of Ca added, y is an yield [%] of Ca, [S] is a concentration [% by mass] of S in the steel before addition of Ca, [Al2O3] is an amount [% by mass] of Al2O3 in the steel before addition of Ca, and W is a weight [kg] of the molten steel.Type: GrantFiled: June 4, 2014Date of Patent: September 11, 2018Assignee: JFE Steel CorporationInventors: Kohei Furumai, Norichika Aramaki, Yuji Miki, Takeshi Murai, Toru Inoue, Yukio Usui, Tomoharu Ishida
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Patent number: 9998712Abstract: Provided is a monitoring apparatus in which the installation position of an imaging unit is not restricted, settings can be easily changed, and it is possible to accurately analyze behavior of a monitoring target. The present invention is a monitoring apparatus for monitoring behavior of a monitoring target, and includes an imaging unit; a display unit that displays the monitoring target imaged by the imaging unit in real time and displays a marker for specifying the position of the monitoring target; a first input unit that receives input of an installation position of the imaging unit relative to the monitoring target; a first storage unit storing monitoring environment data that defines, in advance, an environment around the monitoring target that is to be imaged by the imaging unit, in accordance with the installation position.Type: GrantFiled: March 14, 2014Date of Patent: June 12, 2018Assignee: NORITSU PRECISION CO., LTD.Inventors: Toru Yasukawa, Shoichi Dedachi, Masayoshi Uetsuji, Takeshi Murai, Shuichi Matsumoto
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Publication number: 20170055888Abstract: The present invention provides an information processing device that, when behavior to be watched for is selected by a behavior selection unit, displays a candidate arrangement position of an image capturing device that depends on the selection on a screen. Thereafter, the information processing device detects the behavior selected to be watched for, by determining whether the positional relationship between a person being watched over and a bed satisfies a predetermined condition.Type: ApplicationFiled: January 22, 2015Publication date: March 2, 2017Applicant: NORITSU PRECISION CO., LTD.Inventors: Shuichi Matsumoto, Takeshi Murai, Akinori Saeki, Yumiko Nakagawa, Masayoshi Uetsuji
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Publication number: 20170049366Abstract: The present invention provides an information processing device that, when the height of a reference plane of a bed is being set on a screen using a setting unit, clearly indicates, on a captured image, a region that is located at the height of the reference plane, based on depth information that is included in the captured image. It thereby becomes possible to readily set the reference plane of the bed, which serves as a reference for behavior of a person being watched over. Thereafter, the information processing device detects the behavior of the person being watched over, by determining whether the positional relationship between the reference plane of the bed and the person being watched over satisfies a predetermined condition.Type: ApplicationFiled: January 22, 2015Publication date: February 23, 2017Applicant: NORITSU PRECISION CO., LTD.Inventors: Shuichi Matsumoto, Takeshi Murai, Masayoshi Uetsuji
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Publication number: 20170014051Abstract: The present invention provides an information processing device that sets a range designated within a captured image (3) as a range of a bed reference plane. During this setting, the information processing device evaluates whether the designated range is suitable as the range of the bed reference plane, based on a predetermined evaluation condition, and presents the result of that evaluation to a user. It is thereby possible to easily perform setting relating to a position of the bed that serves as a reference for detecting the behavior of a person being watched over.Type: ApplicationFiled: January 22, 2015Publication date: January 19, 2017Applicant: NORITSU PRECISION CO., LTD.Inventors: Shuichi Matsumoto, Takeshi Murai, Masayoshi Uetsuji