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公开(公告)号：US20240316698A1
公开(公告)日：2024-09-26
申请号：US18281565
申请日：2021-04-06
CPC分类号： B23K26/705 , B23K26/03
摘要： A laser processing apparatus includes a control device controlling laser processing in accordance with processing condition; a detection unit observing processing state on a time-series basis during laser processing and outputting a signal corresponding to observation result as a time-series signal; a parameter estimation unit estimating and outputting, based on first time-series signal data including the time-series signal and/or a first feature computed from the time-series signal and preset corresponding parameter information indicating relationship between the first time-series signal data and at least one parameter value included in the processing condition, a parameter estimate corresponding to the first time-series signal data; a condition change amount determination unit comparing a target parameter value and the parameter estimate and determining a change amount for the processing condition based on comparison result; and a parameter update unit updating the processing condition based on the change amount and the processing condition.
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公开(公告)号：US20230211435A1
公开(公告)日：2023-07-06
申请号：US17927369
申请日：2020-05-29
发明人： Motoaki NISHIWAKI , Kenta FUJII , Kyohei ISHIKAWA
IPC分类号： B23K26/03 , B23K26/042
CPC分类号： B23K26/03 , B23K26/042
摘要： A laser machining system includes a state measurement unit that observes an internal state of a machining head or a varying state of a workpiece and outputs a machining state signal; an inference unit that determines a degree of quality of the laser beam machining as an inference result for each of machining defects concerning at least one type of machining defect on the basis of the machining state signal; a machining monitoring unit that monitors the workpiece for presence or absence of the machining defect and outputs a monitoring signal; a machining decision unit that decides whether there is the machining defect and determines a quality of the machining as a decision result; and a machinery safety unit that outputs, on the basis of the inference result and the decision result, a control signal that gives an instruction on whether to stop or continue the laser beam machining.
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公开(公告)号：US20230006438A1
公开(公告)日：2023-01-05
申请号：US17850496
申请日：2022-06-27
发明人： Katsushi NAKADA , Kenta FUJII
摘要： To provide a power converter and a breaking mechanism which can break a DC current and can suppress that a fused material scatter to other circuits at fusing, in the case where the breaking mechanism of excess current is formed by a circuit pattern of a circuit board. In a power converter, a supporting member is provided with a support body part; a fixation projection part which projected from the support body part and to which the multilayer circuit board was fixed; and a support projection part which projected from the support body part and supports an one side circuit board face, wherein the fuse pattern is provided in an inner layer, and the support projection part overlaps with at least one part of a fusing part of the fuse pattern, viewing in a normal direction of the circuit board face of the multilayer circuit board.
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公开(公告)号：US20220107629A1
公开(公告)日：2022-04-07
申请号：US17554491
申请日：2021-12-17
IPC分类号： G05B19/4155
摘要： A machining condition search device according to the disclosure includes a machining condition generation unit, a practical machining command unit, a machining evaluation unit, a prediction unit, an optimum machining condition calculation unit. The machining condition generation unit generates a machining condition defined by one or more control parameters settable on a machining apparatus. The practical machining command unit causes the machining apparatus to perform machining based on a generated machining condition. The machining evaluation unit generates an evaluation value of performed machining, on the basis of information indicating a machining result of the performed machining. The prediction unit predicts an evaluation value corresponding to a machining condition under which machining is not performed, on the basis of the evaluation value and the machining condition corresponding to the evaluation value. The optimum machining condition calculation unit obtains an optimum machining condition on the basis of a prediction value predicted by the prediction unit and an evaluation value generated by the machining evaluation unit. The optimum machining condition is a machining condition under which an evaluation value is equal to or greater than a threshold and a tolerance is maximum.
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公开(公告)号：US20190086900A1
公开(公告)日：2019-03-21
申请号：US15781218
申请日：2017-02-15
发明人： Kenta FUJII , Hidetoshi IKEDA , Teruaki FUKUOKA
IPC分类号： G05B19/414 , G05D3/12 , G05B19/19 , H02P5/46 , B23Q1/44
摘要： A servo control device controls a combined position of a first servo system and a second servo system having higher response than response of the first servo system. The servo control device includes a first axis target value creation unit and a correction unit. The first axis target value creation unit creates a first axis target value based on a combined command value which is a position command value of the combined position. The correction unit converts the first axis target value into a first axis command value by using a first transfer function. In addition, the correction unit converts the first axis target value by using a second transfer function, and calculates a second axis command value by subtracting the converted first axis target value from the combined command value. The product of the first transfer function and a first model transfer function which models characteristics of the first servo system is equal to the product of the second transfer function and a second model transfer function which models characteristics of the second servo system.
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公开(公告)号：US20240195307A1
公开(公告)日：2024-06-13
申请号：US18554924
申请日：2022-05-02
发明人： Mikito HIRATA , Kenta FUJII , Hiroyuki KIYONAGA , Yusuke MORIMOTO
CPC分类号： H02M3/335 , H05K1/14 , H05K5/0247 , H05K7/1007 , H05K9/0024
摘要： A power conversion device includes a casing, a first printed board, a second printed board, and a control circuit board. The casing has at least two inner surfaces. The first printed board is fixed to the inner surface of the casing. The second printed board is fixed to the inner surface of the casing, and disposed so as to intersect with the first printed board. The control circuit board is disposed along the second printed board. The control circuit board includes a circuit wiring and a shield pattern opposite to the circuit wiring in a layer different from the circuit wiring. When viewed from an opposite direction in which the shield pattern is opposite to the circuit wiring, the shield pattern at least partially overlaps the circuit wiring.
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公开(公告)号：US20240177914A1
公开(公告)日：2024-05-30
申请号：US18553581
申请日：2022-05-19
CPC分类号： H01F27/22 , H01F27/2876 , H02M3/003
摘要： A coil device includes a core having a loop-shaped magnetic path and a first winding part. The first winding part is wound around the core so as to pass through an inner region of the core surrounded by the core. In the inner region of the core and an outer region of the core, a metal base substrate in which a coil pattern is formed with an insulating layer interposed on a metal base body is disposed. A cooling body is thermally bonded to a side of the metal base body opposite to a side where the insulating layer and the coil pattern are formed. The first winding part includes the coil pattern.
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公开(公告)号：US20230080251A1
公开(公告)日：2023-03-16
申请号：US17798312
申请日：2020-03-17
发明人： Kenta FUJII , Motoaki NISHIWAKI , Kyohei ISHIKAWA
摘要： A control device that executes machining to cut a workpiece into a part and a remaining material; a detection unit that determines, as a time-series signal, a result of observing in time series a state of the workpiece; a machining state evaluation unit that determines, as evaluation information, a result of evaluation on a state of the machining for each of sections obtained by dividing the machining path, based on the time-series signal; an evaluation information storage unit that stores contour line evaluation information in which a contour line is associated with the evaluation information; and a sorting operation determination unit that determines a sorting control command for controlling sorting operation in which the part is taken out from a position where the workpiece is machined and moved to a target position, based on the contour line evaluation information; are provided.
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公开(公告)号：US20190019609A1
公开(公告)日：2019-01-17
申请号：US16069375
申请日：2017-01-04
发明人： Kenta FUJII , Koji NAKAJIMA , Yuji SHIRAKATA , Jun TAHARA , Takashi KUMAGAI
摘要： A circuit device and a power converter include a core, a coil surrounding at least a part of the core, and a first heat transfer member being in surface contact with the core. A temperature rise of the core can thus be prevented or reduced.
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公开(公告)号：US20180343736A1
公开(公告)日：2018-11-29
申请号：US15778388
申请日：2016-11-28
发明人： Shota SATO , Tsuneo HAMAGUCHI , Yuji SHIRAKATA , Kenta FUJII
摘要： A printed board includes an insulating layer, and radiation vias penetrating printed board are formed in both a first region overlapping electronic component and a second region outside the first region. A plurality of conductor layers included in printed board are cross-connected to a plurality of radiation vias. Diffusion radiator includes a thermal diffusion plate, a radiation member, and a cooling body. Radiation member is in close contact with one of main surfaces of cooling body, and thermal diffusion plate is in close contact with one of main surfaces of radiation member on the opposite side to cooling body. One of main surfaces of thermal diffusion plate on the opposite side to radiation member is bonded to a conductor layer on the other main surface of printed board so as to close the plurality of radiation vias.
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