4584 patents
Page 27 of 230
Utility
Method and device for monitoring connection of semiconductor of power module
18 Apr 23
The invention: determines if the duration of the conducting state of the semiconductors in a first cycle of the pulse width modulation is upper than a predetermined duration, measures, during the conducting state of the semiconductors at a second cycle, the voltage provided to the load, sequentially disables the conduction of each semiconductor during a part of the duration of the conducting state of the semiconductors in a third cycle and measures the voltage provided to the load, determines the differences between the voltage measured during the second cycle and each voltage measured during the third cycle, orders the differences according to their value, checks if the determined order is identical to an order stored in a memory of the device and determines that one connection of one semiconductor is deteriorated if the order is changed.
Jeffrey Ewanchuk, Julio Brandelero, Stefan Mollov
Filed: 20 Jan 20
Utility
Servo control device
18 Apr 23
A servo control device for controlling an end effector of a machine to follow a set reference trajectory by driving the machine using an actuator includes a feedforward compensation unit that performs feedforward compensation by outputting a feedforward signal for controlling the actuator on the basis of a position command signal inputted thereto, wherein input-output characteristics represented in a continuous-time system of the feedforward compensation unit are expressed by a transfer function having unstable zeros, and a step response of the feedforward compensation unit has an initial undershoot.
Akio Saito, Hidetoshi Ikeda
Filed: 8 Sep 17
Utility
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18 Apr 23
A numerical control system according to the present invention controls machine drive systems included in a machine tool that performs machining using a tool, according to a numerical control program, and includes a coordinate transformation unit that acquires a disturbance force or a disturbance torque applied to each machine drive system, and coordinate-transforms the disturbance force or the disturbance torque into a tool reference coordinate system for output, and an identification unit that calculates cutting process parameters that determine characteristics of a cutting process model and dynamic characteristic parameters that determine characteristics of a dynamics model of the machine tool, using the disturbance force or the disturbance torque output from the coordinate transformation unit, states of the machine drive systems, predetermined equation models, and cutting conditions.
Kazuki Takahei, Ryosuke Ikeda, Norikazu Suzuki, Shoya Ohno
Filed: 30 Aug 17
Utility
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18 Apr 23
A software analysis device being capable of analyzing dependency between software components more comprehensively and with higher accuracy than a conventional technology is provided.
Taishi Azuma, Toshihiro Kobayashi, Yuki Hikawa
Filed: 3 Oct 18
Utility
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18 Apr 23
An object is to provide technology capable of appropriately estimating lane marking information.
Yasuyoshi Hori
Filed: 10 Jan 17
Utility
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18 Apr 23
A lead member includes a plurality of lead terminals, and the lead terminals extend from the inside to the outside of a mold resin.
Takamasa Iwai, Junji Fujino, Hiroshi Kawashima
Filed: 4 Sep 19
Utility
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18 Apr 23
An ultrasonic bonding apparatus includes an ultrasonic bonding machine having an ultrasonic tool for applying an ultrasonic wave to a bonding target member mounted on a fixed object fixed to a jig, while pressing a bonding member against the bonding target member; and a bonding inspection apparatus for inspecting a bonding quality of the bonding target member and the bonding member.
Minoru Egusa, Shingo Sudo, Kazuyuki Hashimoto, Erubi Suzuki
Filed: 2 Feb 18
Utility
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11 Apr 23
A geographic object recognition unit (120) recognizes, using image data (192) obtained by photographing in a measurement region where a geographic object exists, a type of the geographic object from an image that the image data (192) represents.
Mamoru Miura, Ayako Nemoto, Yoshimi Moriya, Hideyuki Masui, Yusuke Itani, Masashi Watanabe, Katsuyuki Kamei, Takuma Kadoya
Filed: 15 Oct 19
Utility
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11 Apr 23
A shared base plate includes a plurality of base portions to which a plurality of electronic components including semiconductor switching elements are to be mounted, and a terminal formed portion formed so as to extend from the base portion to the outer side.
Takashi Nagao, Kensuke Takeuchi
Filed: 25 Apr 18
Utility
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11 Apr 23
According to the present disclosure, a method of manufacturing a semiconductor device includes the steps of (a) preparing a lead frame including a switching element die pad, a control element die pad, and a third-side side rail portion, (b) mounting a switching element and a diode element on the switching element die pad and mounting a control element configured to control the switching element on the control element die pad, (c) sealing the switching element, the diode element, and the control element with a mold resin such that the power side terminal, the control side terminal, and a part of the third-side side rail portion protrude outward, and (d) forming a third-side side rail terminal by cutting the third-side side rail portion, the third-side side rail terminal extending from a part of the third-side side rail portion.
Shuhei Yokoyama, Hiroyuki Nakamura
Filed: 6 Jul 21
Utility
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11 Apr 23
A power conversion device includes a circuit board on which wirings are formed and plural semiconductor switching elements are mounted; and a driver circuit which is mounted on the circuit board, and operates at least two of the plural semiconductor switching elements together; wherein the plural semiconductor switching elements are provided as packages having a same shape, and placed in such a positional relationship in which an inter-control-terminal distance that is a distance between their respective control terminals is shorter than a length of a terminal side that is a side of each of the packages at which the control terminal is placed.
Kei Hayase
Filed: 21 Sep 18
Utility
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11 Apr 23
A rotary machine control device includes a voltage application unit that applies a voltage to a rotary machine with three phases, a current detection unit that outputs current information representing information on a current caused to flow to the rotary machine by application of the voltage, a control unit that outputs a voltage command to apply a voltage between each of pairs of the phases of the rotary machine, and an open phase determination unit that performs open phase determination to determine whether an open phase occurs in the rotary machine, by detecting the values of currents flowing between the respective pairs of the phases by monitoring the voltage command and the current information, and by comparing the sum of the values of the currents flowing between the respective pairs of the phases with a predetermined reference value.
Akane Hongyo, Akira Satake
Filed: 25 Jul 19
Utility
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11 Apr 23
An elevator inspection operation apparatus for performing an inspection operation for a car in a pit of an elevator includes: an operation mode selector switch configured to switch an operation mode between a normal operation and the inspection operation; a return switch, which is provided outside the pit of the elevator, and is to be manipulated when the operation mode is to be switched from the inspection operation to the normal operation; and a latching relay configured to be latched to an inspection operation side when the operation mode has been switched from the normal operation to the inspection operation by the operation mode selector switch, and to maintain a latched state until the return switch is manipulated when the operation mode has been switched from the inspection operation to the normal operation by the operation mode selector switch.
Shingo Kondo, Takehiko Kubota
Filed: 26 Apr 16
Utility
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11 Apr 23
An electric motor includes a stator, a rotor, and a magnetic sensor.
Junichiro Oya, Mineo Yamamoto, Hiroyuki Ishii, Yuto Urabe, Takaya Shimokawa
Filed: 11 Sep 17
Utility
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11 Apr 23
A first heat exchanger, a desiccant block, and a second heat exchanger are arranged in series.
Shinichi Ito, Fumitake Unezaki, Mamoru Hamada
Filed: 24 Apr 13
Utility
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11 Apr 23
A semiconductor test apparatus according to the present disclosure includes: a stage on which a wafer is to be mounted; a pressurizing wall disposed on a surface of a probe card opposing the stage, extending toward the stage, and having an opening; a mark disposed on a lower surface of the pressurizing wall opposing the stage; a probe disposed in the opening; an air tube to force air into the opening; a detector to detect first spacing between a tip of the probe and the mark; and a controller to control second spacing between the wafer and the lower surface of the pressurizing wall based on the first spacing, wherein, when an electrical property of each of chips of the wafer is measured, the second spacing is controlled to be predetermined spacing by the controller, and the air is forced into the opening through the air tube.
Yasushi Takaki, Kinya Yamashita, Masaki Ueno
Filed: 27 Jul 21
Utility
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11 Apr 23
A failure detection apparatus (10) acquires, as target data, sensor data output in a past reference period by a sensor (31), such as a millimeter wave radar or LiDAR (Light Detection And Ranging), mounted on a moving body (100).
Naoyuki Tsushima, Masahiko Tanimoto, Masahiro Abukawa
Filed: 7 Mar 17
Utility
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11 Apr 23
A plurality of hierarchy information management devices include a first hierarchy information management unit managing first hierarchy information in which information on instruments is represented in a hierarchy structure, and each hierarchy information management device manages the first hierarchy information of a different one of the instruments.
Takayuki Mizuno
Filed: 25 Feb 20
Utility
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11 Apr 23
A screen creation assistance device includes: a master data creation unit that creates master data including specific information that is information that specifies each of elements included in screen creation data for causing a display device to display a screen; a sub-project data creation unit that creates sub-project data including reference data for referring to the master data, and the specific information on elements that are not included in the master data; and a communication unit that transmits the master data and the sub-project data to a display device.
Yuya Matoba
Filed: 31 Jan 19
Utility
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11 Apr 23
A macro block size determining unit 1 determines the size of each macro block on a frame-by-frame basis.
Yoshimi Moriya, Shunichi Sekiguchi, Yoshihisa Yamada, Kohtaro Asai
Filed: 15 Jan 21