Patents by Inventor Toshihiro Yamada
Toshihiro Yamada 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: 11945509Abstract: A vehicle body rear part structure includes a rear frame and a beam member. The rear frame has: a first inner bead, a first outer bead, a second inner bead, and a second outer bead. The first inner bead and the first outer bead are formed on an inner wall and an outer wall, respectively, in a region close to the beam member. The second inner bead and the second outer bead are formed on the inner wall and the outer wall, respectively, in a region that is separated to a vehicle body frontward direction from the first beads. The first outer bead is formed to have a higher fragility than the first inner bead.Type: GrantFiled: January 26, 2022Date of Patent: April 2, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Shungo Chino, Yuya Akaba, Toshihiro Yamaguchi, Kyosuke Yamakita, Yusuke Miura, Dai Kamata, Chihiro Sakagami, Kosuke Fushimi, Shohei Ohtsuka, Hitomi Yamada
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Patent number: 11935559Abstract: This magnetic disk device is a 3.5-inch magnetic disk device equipped with magnetic disks formed from an aluminum alloy substrate. The magnetic disks arranged in a stacked manner have a thickness Td of 0.3 mm to 0.6 mm, the number N of magnetic disks involved is 10 to 16, and spacers disposed between the magnetic disks have an outside diameter 2 Rso of 35 mm to 65 mm. The outside diameter 2 Rso (mm) of the spacers satisfies 2 Rso??60 Td+70 and 2 Rso??0.5 N2?+16.5 N?73.Type: GrantFiled: November 11, 2021Date of Patent: March 19, 2024Assignees: UACJ CORPORATION, FURUKAWA ELECTRIC CO., LTD.Inventors: Naoki Kitamura, Kotaro Kitawaki, Hideyuki Hatakeyama, Ryohei Yamada, Toshihiro Nakamura
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Patent number: 11651317Abstract: A work operation analysis system 11 includes: a deviant operation analysis unit 114 that analyzes a work video obtained by photographing work of a worker on a work process basis and, in the case where a deviant operation different from normal work has been detected, identifies the occurrence timing of the deviant operation; a work video accumulation unit (a normal work video accumulation unit 117 and a deviant work video accumulation unit 118) that accumulates a normal work video obtained by preliminarily photographing normal work and a deviant work video obtained when the deviant operation occurred; and a display unit (a display input device 111) that displays the normal work video and the deviant work video having predetermined time including the occurrence timing of the deviant operation.Type: GrantFiled: February 28, 2019Date of Patent: May 16, 2023Assignee: Hitachi, Ltd.Inventors: Hiroto Nagayoshi, Takuma Terada, Nobuhiro Kakeno, Toshihiro Yamada
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Publication number: 20230109640Abstract: A skeleton detection system includes, a first storage unit configured to store reference operation information related to at least one cycle of a reference operation being a repetitive operation performed by an operator, a skeleton information detection unit configured to detect skeleton information about the operator from a working video obtained by capturing the operator during work, and a target identification unit configured to identify, as a target, among pieces of skeleton information about a plurality of operators during work, detected by the skeleton information detection unit, skeleton information about an operator indicating an operation satisfying a target requirement that a difference between the reference operation information and inspection target information being operation information during work falls within a preset allowable operation range.Type: ApplicationFiled: December 12, 2022Publication date: April 6, 2023Applicants: DAICEL CORPORATION, HITACHI, LTD.Inventors: Yasutsugu Toyoda, Yasuhiko Inadomi, Yuki Ishito, Toshihiro Yamada, Hiroshi Yoshikawa
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Patent number: 11513013Abstract: A stress distribution measurement device includes: a first magnetostrictive sensor and a second magnetostrictive sensor each including an excitation coil that excites AC magnetism in a measurement target using alternating current, and a detection coil to which alternating current is induced due to the AC magnetism flowing in the measurement target; an excitation circuit that applies a first excitation voltage to the excitation coil of the first magnetostrictive sensor and applies a second excitation voltage to the excitation coil of the second magnetostrictive sensor, the second excitation voltage having a phase or a waveform different from the first excitation voltage; and a detection circuit that includes a first detector that performs synchronous detection of current flowing in the detection coil of the first magnetostrictive sensor based on the first excitation voltage and a second detector that performs synchronous detection of current flowing in the detection coil of the second magnetostrictive sensor bType: GrantFiled: September 1, 2020Date of Patent: November 29, 2022Assignee: Hitachi, Ltd.Inventors: Masanori Kitaoka, Hisashi Endo, Hiroshi Yoshikawa, Toshihiro Yamada, Nobuhiro Kakeno
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Patent number: 11325209Abstract: To improve quality control of welding, there is included in resistance welding: a magnetic field measuring unit (205) disposed around a welded part and configured to measure a local current at the welded part; a high-speed camera (202) configured to capture an image for measuring local temperature at the welded part from variation of luminance of emission by capturing light emission state of the welded part; a comparison determination unit (106) configured to determine whether or not at least one of current information and temperature information has an abnormal value by comparing the current information calculated based on magnetic field information acquired from the magnetic field measuring unit with past current information and comparing the temperature information measured from an image of the high-speed camera (202) with past temperature information.Type: GrantFiled: March 15, 2017Date of Patent: May 10, 2022Assignee: HITACHI, LTD.Inventors: Hisashi Endoh, Hiroshi Yoshikawa, Toshihiro Yamada
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Publication number: 20220057789Abstract: A manufacturing monitoring assistance device includes: a model creation unit creating a computation model when a product as a sample is normal, based on a three-dimensional form acquired from the product; a simulation unit creating a corrective computation model when the product is abnormal, by adding a sample of an abnormal portion in the product to the created computation model, and performing a simulation on each of the computation model and the corrective computation model; and a monitoring method determination unit determining a method for monitoring a manufacturing process for the product, based on an abnormality index being a difference between an output from a sensor as a result of the simulation performed on the computation model and an output from a sensor as a result of the simulation performed on the corrective computation model, and causing an output device to display the determined method and the abnormality index.Type: ApplicationFiled: January 30, 2020Publication date: February 24, 2022Applicant: HITACHI, LTD.Inventors: Masanori KITAOKA, Hisashi ENDOU, Nobuhiro KAKENO, Hiroshi YOSHIKAWA, Toshihiro YAMADA
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Patent number: 11150196Abstract: The disclosure provides a joining process line monitoring system capable of preventing joining quality deterioration and operation delay.Type: GrantFiled: August 30, 2018Date of Patent: October 19, 2021Assignee: HITACHI, LTD.Inventors: Hisashi Endou, Masanori Miyagi, Hiroshi Yoshikawa, Toshihiro Yamada, Nobuhiro Kakeno, Yasunori Hama
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Patent number: 11029254Abstract: There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.Type: GrantFiled: July 11, 2018Date of Patent: June 8, 2021Assignee: HITACHI, LTD.Inventors: Ryoji Nakagawa, Hisashi Endou, Hiroshi Yoshikawa, Toshihiro Yamada, Nobuhiro Kakeno
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Publication number: 20210063316Abstract: The disclosure provides a joining process line monitoring system capable of preventing joining quality deterioration and operation delay.Type: ApplicationFiled: August 30, 2018Publication date: March 4, 2021Inventors: Hisashi ENDOU, Masanori MIYAGI, Hiroshi YOSHIKAWA, Toshihiro YAMADA, Nobuhiro KAKENO, Yasunori HAMA
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Publication number: 20210063255Abstract: A stress distribution measurement device includes: a first magnetostrictive sensor and a second magnetostrictive sensor each including an excitation coil that excites AC magnetism in a measurement target using alternating current, and a detection coil to which alternating current is induced due to the AC magnetism flowing in the measurement target; an excitation circuit that applies a first excitation voltage to the excitation coil of the first magnetostrictive sensor and applies a second excitation voltage to the excitation coil of the second magnetostrictive sensor, the second excitation voltage having a phase or a waveform different from the first excitation voltage; and a detection circuit that includes a first detector that performs synchronous detection of current flowing in the detection coil of the first magnetostrictive sensor based on the first excitation voltage and a second detector that performs synchronous detection of current flowing in the detection coil of the second magnetostrictive sensor bType: ApplicationFiled: September 1, 2020Publication date: March 4, 2021Inventors: Masanori KITAOKA, Hisashi ENDO, Hiroshi YOSHIKAWA, Toshihiro YAMADA, Nobuhiro KAKENO
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Patent number: 10935500Abstract: There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.Type: GrantFiled: October 18, 2017Date of Patent: March 2, 2021Assignee: HITACHI, LTD.Inventors: Ryoji Nakagawa, Hisashi Endou, Hiroshi Yoshikawa, Toshihiro Yamada, Nobuhiro Kakeno
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Publication number: 20200401981Abstract: A work operation analysis system 11 includes: a deviant operation analysis unit 114 that analyzes a work video obtained by photographing work of a worker on a work process basis and, in the case where a deviant operation different from normal work has been detected, identifies the occurrence timing of the deviant operation; a work video accumulation unit (a normal work video accumulation unit 117 and a deviant work video accumulation unit 118) that accumulates a normal work video obtained by preliminarily photographing normal work and a deviant work video obtained when the deviant operation occurred; and a display unit (a display input device 111) that displays the normal work video and the deviant work video having predetermined time including the occurrence timing of the deviant operation.Type: ApplicationFiled: February 28, 2019Publication date: December 24, 2020Inventors: Hiroto NAGAYOSHI, Takuma TERADA, Nobuhiro KAKENO, Toshihiro YAMADA
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Publication number: 20200361023Abstract: Provided is a welding management system that appropriately manages welding. The welding management system (100) includes a plurality of local magnetic sensors (10a to 10f) provided around a target joining position (K) and a correction magnetic sensor (20) curved to surround the target joining position (K). A data processing unit (30) generates information of a joining state of the target joining position (K) based on a difference between a detection value of each of the plurality of the local magnetic sensors (10a to 10f) and a detection value of the correction magnetic sensor (20).Type: ApplicationFiled: March 30, 2018Publication date: November 19, 2020Inventors: Ryoji NAKAGAWA, Hisashi ENDOU, Hiroshi YOSHIKAWA, Toshihiro YAMADA, Nobuhiro KAKENO, Hideya ISAKA
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Publication number: 20190210159Abstract: To improve quality control of welding, there is included in resistance welding: a magnetic field measuring unit (205) disposed around a welded part and configured to measure a local current at the welded part; a high-speed camera (202) configured to capture an image for measuring local temperature at the welded part from variation of luminance of emission by capturing light emission state of the welded part; a comparison determination unit (106) configured to determine whether or not at least one of current information and temperature information has an abnormal value by comparing the current information calculated based on magnetic field information acquired from the magnetic field measuring unit with past current information and comparing the temperature information measured from an image of the high-speed camera (202) with past temperature information.Type: ApplicationFiled: March 15, 2017Publication date: July 11, 2019Inventors: Hisashi ENDOH, Hiroshi YOSHIKAWA, Toshihiro YAMADA
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Publication number: 20180321162Abstract: There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.Type: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Applicant: Hitachi, Ltd.Inventors: Ryoji NAKAGAWA, Hisashi ENDOU, Hiroshi YOSHIKAWA, Toshihiro YAMADA, Nobuhiro KAKENO
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Publication number: 20180113077Abstract: There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.Type: ApplicationFiled: October 18, 2017Publication date: April 26, 2018Applicant: Hitachi, Ltd.Inventors: Ryoji NAKAGAWA, Hisashi ENDOU, Hiroshi YOSHIKAWA, Toshihiro YAMADA, Nobuhiro KAKENO
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Patent number: 9523740Abstract: A method includes discharging an assembled battery (10) formed of a plurality of batteries until a state of charge (SOC) of the assembled battery becomes smaller or equal to a lower limit of a predetermined normal use range used in charge and discharge control of the assembled battery, measuring the discharge capacity of each of a plurality of battery blocks in the discharge of the assembled battery, the plurality of batteries being divided into the plurality of battery blocks, calculating the capacity difference in the discharge capacity among the plurality of battery blocks, and determining the remaining life of the battery block or the assembled battery based on the calculated capacity difference.Type: GrantFiled: March 30, 2012Date of Patent: December 20, 2016Assignees: Toyota Jidosha Kabushiki Kaisha, Primearth EV Energy Co., Ltd.Inventors: Motoyoshi Okumura, Koichi Ichikawa, Yasushi Matsukawa, Katsunori Maegawa, Toshihiro Yamada
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Patent number: 9511374Abstract: It is intended to, in a horizontal dry mill, prevent blow-up and adhesion of a raw material, etc., to a raw material input section. In a horizontal dry mill (10) of the present invention, a diameter of a raw material supply section (13) provided in a grinding tank (14) is set to be less than a diameter of a grinding chamber (12). Further, a diameter of a mechanical thrust generating device of the raw material supply section (13) is set to a small value according to the diameter of the raw material supply section. Furthermore, a gap (e1) between an outside dimension of a screw (26) as the mechanical thrust generating device and an inner diameter of the grinding tank (14) in the raw material supply section (13) is set between 0.5 mm and ? of a diameter of each grinding medium M.Type: GrantFiled: December 6, 2012Date of Patent: December 6, 2016Assignee: ASHIZAWA FINETECH LTD.Inventors: Tsuyoshi Ishikawa, Naoki Hagiwara, Toshihiro Yamada
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Publication number: 20140367504Abstract: It is intended to, in a horizontal dry mill, prevent blow-up and adhesion of a raw material, etc., to a raw material input section. In a horizontal dry mill (10) of the present invention, a diameter of a raw material supply section (13) provided in a grinding tank (14) is set to be less than a diameter of a grinding chamber (12). Further, a diameter of a mechanical thrust generating device of the raw material supply section (13) is set to a small value according to the diameter of the raw material supply section. Furthermore, a gap (e1) between an outside dimension of a screw (26) as the mechanical thrust generating device and an inner diameter of the grinding tank (14) in the raw material supply section (13) is set between 0.5 mm and ? of a diameter of each grinding medium M.Type: ApplicationFiled: December 6, 2012Publication date: December 18, 2014Inventors: Tsuyoshi Ishikawa, Naoki Hagiwara, Toshihiro Yamada