10900 patents
Page 10 of 545
Utility
Semiconductor circuit breaker and circuit breaking device
19 Dec 23
The semiconductor circuit breaker includes a semiconductor switch unit connected to an AC circuit, and a phase control unit that controls conduction and non-conduction of the semiconductor switch unit by the control signal.
Katsuhiko Horinouchi, Tsuguhiro Takuno, Tomoko Takasuka, Satoshi Ishikura, Hiroto Yuki
Filed: 25 Jul 18
Utility
Power conversion device with control circuit to adjust a common mode voltage of combined output voltages
19 Dec 23
A three-phase multilevel inverter is connected to a first direct-current voltage source having a first voltage.
Masahiro Sugahara, Kenji Fujiwara, Akihiko Iwata, Hisatoshi Fukumoto
Filed: 14 Feb 19
Utility
Power converter
19 Dec 23
A power converter includes a circuit board, a first magnetic core, and a housing.
Kenichi Tamura, Koji Nakajima, Yoshikazu Nozuki, Masaya Nonomura, Taro Kimura, Yu Kishiwada
Filed: 13 Sep 19
Utility
Three-level power conversion device
19 Dec 23
A first leg includes a first switch circuit disposed between a first node to which a positive electrode of a DC power supply is connected and a second node and a second switch circuit disposed between the second node and a third node.
Takeshi Amimoto, Yu Kawai
Filed: 4 Jul 19
Utility
Semiconductor device
19 Dec 23
A semiconductor device includes: first and second power transistors connected in parallel with each other and having different saturated currents; and a gate driver driving the first and second power transistors with individual gate voltages, respectively, the gate driver includes a drive circuit receiving an input signal and outputting a drive signal, a first amplifier amplifying the drive signal in accordance with first power voltage and supplying the amplified drive signal to a gate of the first power transistor, and a second amplifier amplifying the drive signal in accordance with second power voltage different from the first power voltage and supplying the amplified drive signal to a gate of the second power transistor.
Shinji Sakai
Filed: 16 Apr 21
Utility
Controller for AC rotary electric machine
19 Dec 23
To provide a controller for AC rotary electric machine which can compensate error of the actual on-duty with respect to the command on-duty calculated from command voltage with good accuracy, with a simple circuit configuration.
Shingo Harada, Keiichi Enoki, Nozomu Kamioka, Tomohisa Shoda, Yoshimasa Nishijima, Kazuhiko Otsuka
Filed: 20 Nov 18
Utility
Communication device and program storage medium
19 Dec 23
A communication device according to the present invention is a communication device that wirelessly communicates with a counterpart communication device in a full-duplex mode using orbital angular momentum, and includes a second interference cancellation circuit that generates a replica of an interference signal received together with one or more signals transmitted from the counterpart communication device, on the basis of one or more signals to be transmitted to the counterpart communication device, and subtracts the replica from a received signal.
Manabu Sakai
Filed: 15 Feb 22
Utility
Railroad Vehicle Air Conditioning Apparatus
14 Dec 23
In a railroad vehicle air conditioning apparatus, an indoor heat exchanger is arranged within a housing at a position through which a flow of air passes.
Katsuhiro FUJIKI
Filed: 21 Mar 23
Utility
Centrifugal Blower, Air-blowing Apparatus, Air-conditioning Apparatus, and Refrigeration Cycle Apparatus
14 Dec 23
A centrifugal air blower includes a fan; and a scroll casing.
Takuya TERAMOTO, Ryo HORIE, Takahiro YAMATANI, Kazuya MICHIKAMI, Hiroshi TSUTSUMI, Keijiro YAMAGUCHI
Filed: 22 Aug 23
Utility
Server Selection Device and Server Selection System
14 Dec 23
A server selection device is provided in a server which performs communications with a motor vehicle, and a server determination unit is provided in the server selection device that selects a server from the information of surroundings, and promotes a motor vehicle to connect to the server.
Ryo ISHIDA, Takeshi NISHIWAKI, Takayoshi TAKEHARA
Filed: 30 Oct 20
Utility
Air Conditioner
14 Dec 23
An air conditioner includes an outdoor unit including a three-phase AC power supply, a compressor that compresses a refrigerant, and an inverter circuit that controls the compressor.
Yohei TAKIGAWA
Filed: 3 Feb 21
Utility
Image Processing Device, Non-transitory Computer-readable Storage Medium, and Image Processing Method
14 Dec 23
An image processing device includes an object detecting unit that processes captured image data representing a captured image, which is an image including an object or detection target and a background of the object, to generate processed image data representing a processed image, which is an image in which the object is detected; an expected-data generating unit that generates expected data representing an expected image, which a virtual image in which the object represented by an attribute is placed at a position on the background on the basis of object data representing the position of the object and background data representing the background; and a detection-result determining unit that compares the processed image data and the expected data to determine whether or not the object is detected correctly in the processed image data.
Shingo MINE
Filed: 25 Aug 23
Utility
Abnormality Determination Apparatus, Abnormality Determination System, Abnormality Determination Method and Non-transitory Computer-readable Recording Medium Storing Abnormality Determination Program
14 Dec 23
An abnormality determination apparatus is provided which can determine the presence or absence of abnormality by defining known information as reference information, and by comparing the reference information with information from a sensor(s).
Kentaro ISHIKAWA, Noritaka KOKIDO, Hiroki FUJIYOSHI
Filed: 8 May 23
Utility
Hand Detection Device, Gesture Recognition Device, and Hand Detection Method
14 Dec 23
In the hand detection device, an image acquisition unit acquires an image for hand detection, which is an image obtained by capturing a hand detection region in a vehicle.
Shogo HOTEN, Takuya MURAKAMI, Daiki HIGUCHI
Filed: 21 Jan 21
Utility
Control Device and Power Storage System
14 Dec 23
Provided is a control device for suppressing performance reduction of a power storage device.
Keisuke OGASAWARA, Akiko TABUCHI, Seiji HIRAI
Filed: 5 Feb 21
Utility
Power Conversion Unit and Power Conversion Device
14 Dec 23
A power conversion unit includes an input end to connect with a DC power supply, a first DC voltage end configured of a first terminal and a second terminal, a second DC voltage end configured of a third terminal and a fourth terminal, a converter, and a controller that controls the converter.
Yu KAWAI
Filed: 8 Dec 20
Utility
Power Conversion Device
14 Dec 23
A power conversion device comprises: power conversion circuitry for converting DC power into AC power and supplying it into a load according to a switching state quantity defined by combinations among switching parameters of switching devices; a voltage output calculation device for calculating a voltage output value on the power conversion circuitry, based on the switching state quantity; an integration value calculation device for acquiring a voltage reference integration value and a voltage output integration value by integrating a voltage reference value and the calculated voltage output value; a switching update-determination unit for outputting an update signal of the switching state quantity, based on the voltage reference integration value, its allowance value, and the voltage output integration value; and a switching determination table for determining a switching state quantity of the switching devices, based on the voltage reference integration value, the voltage output integration value and the update signal.
Tenjiro HIWATARI, Sota SANO, Akira SATAKE, Kiyoshi OHISHI, Yuki YOKOKURA, Yuto KOBAYASHI
Filed: 18 Nov 21
Utility
Inter-apparatus Movement Time Estimation Device, Inter-apparatus Movement Time Estimation Method and Operation Schedule Proposal System
14 Dec 23
An inter-apparatus movement time estimation device according to the present disclosure includes: a communication unit to receive, from a plurality of apparatuses, operation time information for an operator to operate each of the plurality of apparatuses; a combination generation unit to generate a plurality of combinations of the operation time of a first apparatus and the operation time of a second apparatus; an operation time difference computation unit to compute a difference between the operation time of the first apparatus and the operation time of the second apparatus as an inter-apparatus operation time difference; an exclusion unit to output an exclusion result in which the inter-apparatus operation time difference whose size is relatively small or whose occurrence probability is relatively low is excluded; and an inter-apparatus movement time calculation unit to estimate time required to move between the first apparatus and the second apparatus from the exclusion result.
Tetsuro SHIDA
Filed: 25 Dec 20
Utility
Motor Driving Apparatus, Refrigeration Cycle Equipment, and Air Conditioner
14 Dec 23
In a control device performing PWM control over an inverter for driving a motor, voltage command values are generated using voltage values obtained by performing proportional and integral calculation on current deviations and non-interference control during normal operation, and the voltage command values are generated without using the result of the integral calculation and performing only the non-interference control, at the time of over-modulation.
Shinya TOYODOME, Kazunori HATAKEYAMA, Shoei TSUTSUMI
Filed: 17 Dec 20
Utility
Circuit Board
14 Dec 23
In a circuit board (700A), a first capacitor (410) extends from a wiring pattern (110) to a region located on one side of the wiring pattern (110) in the width direction.
Masatoshi TOYONAGA, Satoru ISHIZAKA
Filed: 9 Mar 21