Canon Kabushiki Kaisha

Hitachi, Ltd.

Janome Sewing Machine Company Limited

Kabushiki Kaisha Toshiba

Hitachi Automotive Systems, Ltd.

Hitachi-High-Technologies Corporation

Hitachi Astemo Ltd.

Other

Nec Corporation

Mitsubishi Gas Chemical Company, Inc.

Toshiba Medical Systems Corporation

Toshiba Electronic Devices & Storage Corporation

Taisho Pharmaceutical Co., Ltd.

Hitachi High-Tech Electronics Engineering Co., Ltd.

Masayoshi Takahashi

Masami Makuuchi

Hiroki Funato

Norio Chujo

Koji Hashimoto

Yoshikazu Ebata

Yutaka Uematsu

Jun Okada

Akio Suzuki

Makoto Torigoe

Mamoru Sakaki

Masato Katayama

Tatsuo Takeuchi

Yoshihiro Takada

Wen Zheng Li

Yoshihiko Hayashi

Yasukata Eguchi

Nobuhiro Gemma

Ritsuro Orihashi

Takayuki Mizuta

Yuki Nakamura

Koji Suzuki

Yasuyuki Tamura

Susumu Hanyu

Kaoru Sato

Hideyuki Sakamoto

Takahiro Jingu

Ryosuke Sato

Keiichi Yamamoto

Hitoshi Akiyama

Koichi Tanigawa

Masaharu Ohkubo

Tsuyoshi Watanabe

Hideki Adachi

Tomohiro Nakamori

Masanori Miyata

Hiroyuki Miyake

Seiji Sagara

Masahiro Tomosada

Masaru Nikaido

Yutaka Komiya

Yoshihiko Tanaka

Masayuki Hirose

Hideyuki Matsubara

Tatsuto Tachibana

Takashi Kashiba

Keisuke Fukumasu

Reishi Nomoto

Shinji Homma

Hua Zeng

Ritsurou Orihashi

Kengo Imagawa

Yoshihiro Sakurai

Hideo Sakai

Masashi Saito

Yuichi Sakurai

Masaaki Maeda

Yoshinobu Shimomura

Yoshiharu Yamashita

Eiichi Honda

Kenichiro Nakajima

Kiyoto Toyoizumi

Satoru Shigeta

Keiko Ito

Tatsuya Tada

Shigeru Kameyama

Tadashi Okanishi

Kazunori Hanada

Yoshiyuki Tsuchie

Masahiro Toyama

Isao Hoda

Kazuhiko Okazawa

Hitoshi Machino

Eijiro Ohashi

Yukio Numakami

Hisashi Enomoto

Naoko Nakamura

Makoto Jinzai

Takaji Yonemori

Yosei Hara

Nobutoshi Yoshida

Hideki Mochizuki

Yuki Fujita

Tadashi Fukumuro

Toshifumi Ishimori

Takeshi Kato

Shinichi Ayuba

Masatoshi Watanabe

Shinichi Yonehama

Toshi Komurasaki

Shigezo Udaka

Toshiaki Takai

Isao Houda

Shigeyuki Hirose

Hirokazu Kadowaki

Masahiro Uehara

Hitoshi Toyoda

Daisuke Uchida

Kana Kumamoto

A signal transmission system includes: a first signal line and a second signal line each making up a differential line; a first capacitive load mechanism disposed in a first region connected to the first signal line, the first capacitive load mechanism having a first capacitance value; and a second capacitive load mechanism disposed in a second region connected to the second signal line and to the ground point line, the second capacitive load mechanism having a capacitance value asymmetric with the first capacitance value. This signal transmission system suppresses an increase in mode conversion loss caused by component characteristics variations.

Signal transmission system

An electronic apparatus comprises a semiconductor device and a mounting substrate. The semiconductor device includes a semiconductor chip and a wiring circuit board. The chip includes a circuit blocks and first electrode pads. The wiring circuit board includes a first surface and a second surface. The first surface includes second electrode pads wirings. The second surface includes ball electrodes. A first wiring supplies a ground potential to a first circuit block. A second wiring supplies a ground potential to a second circuit block. The second surface includes a first extension pad and a second extension pad. The first extension pad and the second extension pad are disposed at positions at which they are connected to each other on the second surface side through a single ball electrode.

Technique of wiring provided on a wiring circuit board that is mounted in an electronic apparatus

An electronic control device includes: a circuit board configured to be provided in a frame and to have a communication circuit capable of receiving or transmitting differential signals via a pair of signal pins; a connector configured to be electrically connected to the circuit board and to input signals transmitted from an electronic device outside the frame by single-end transmission to the communication circuit; and a noise cancellation signal output circuit configured to output noise cancellation signals corresponding to noise superimposed on the signals in the connector, wherein one signal pin of the pair of signal pins of the communication circuit is connected to the connector, and the other signal pin is connected to the noise cancellation signal output circuit.

Electronic control device

A signal transmission device includes a communication unit that performs communication using differential transmission with an electronic device via a differential wiring, and a signal processing unit that performs signal processing related to the communication, in which the communication unit is capable of receiving, via the differential wiring, communication signals transmitted from the electronic device at each of a plurality of signal transmission rates including at least a first signal transmission rate and a second signal transmission rate lower than the first signal transmission rate, the communication unit measures an amplitude of the communication signals received from the electronic device at the second signal transmission rate, and the signal processing unit detects a short-circuit failure of a filter circuit on the basis of the amplitude measured by the communication unit.

Signal transmission device, signal transmission system, and information provision method

According to one embodiment, a semiconductor device includes a first circuit, a first terminal, a second terminal, a conductor and a first switch element serially coupled between the first terminal and the second terminal, wherein the first circuit is configured to turn the first switch element to an OFF state when a first condition is satisfied, and the conductor is configured to physically break when a second condition is satisfied.

Semiconductor device

A device includes a catalog storage unit that stores a catalog having versatility; a catalog control unit that specifies the catalog corresponding to a target machine tool to be subjected to state determination based on machine tool information including an item of facility type and acquires the catalog from the catalog storage unit; a feature quantity extraction unit that extracts a feature quantity from sensor data detected from the target machine tool; a sensor data processing unit that performs state determination of the target machine tool based on the feature quantity distribution included in the acquired catalog and the feature quantity extracted from the sensor data; a feature quantity tuning unit that performs tuning of the feature quantity distribution by mapping the extracted feature quantity to the feature quantity distribution; and a catalog updating unit that updates the catalog based on the feature quantity distribution after tuning.

Facility state determination device, facility state determination method, and facility management system

A state identification device includes: a feature amount extraction unit that extracts a feature amount from physical data of a machine tool unit which shifts to a plurality of operation states; a feature amount storage unit in which a region is provided as a storage destination of the extracted feature amount for each of the plurality of operation states to which the machine tool unit shifts; a similarity calculation unit that calculates a similarity between the extracted feature amount and a feature amount stored in the feature amount storage unit; a state determination unit that determines an operation state of the machine tool unit based on the calculated similarity; and a storage destination determination unit that determines the region serving as the storage destination of the extracted feature amount based on a determination result of the state determination unit.

State identification device, state identification method and mechanical device

A printing system includes an image forming apparatus that accepts a printing instruction from a mobile terminal, sends an inquiry to a server as to whether a printing reservation corresponding to the accepted printing instruction is managed by the server, and transmits connection information to the mobile terminal if the printing reservation is managed by the server. The image forming apparatus obtains printing data corresponding to the printing instruction from the mobile terminal set in the connected state, executes printing processing using the obtained printing data, and sets communication with the mobile terminal to an unconnected state after execution of the printing processing is complete. If the printing reservation corresponding to the accepted printing instruction is not managed by the server, the printing instruction accepted from the mobile terminal is rejected and the connection information is not transmitted to the mobile terminal.

Printing system and related control method in which a printing apparatus connects with a mobile terminal if a printing reservation corresponding to a printing instruction from the mobile terminal is managed by a server

Provided is a power conversion device capable of selectively suppressing harmonic noise in a frequency band and a machine equipped with the power conversion device. The power conversion device includes a switching element (), a switching signal generation unit () for generating a switching control signal for controlling the turning on/off of the switching element (), and a control unit (), and is characterized in that the switching control signal generation unit () generates the switching control signal including a combination of a pair of symmetrical pulse waveforms having on and off periods that are interchanged with respect to a repeated cycle.

Power conversion device and machine equipped with power conversion device

A power conversion device includes: a metal housing; a power semiconductor module that is contained in the metal housing and converts direct electric current to alternating electric current; a capacitor module that is contained in the metal housing and arranged side by side with the power semiconductor module, wherein the capacitor module smoothes the direct electric current supplied to the power semiconductor module; a substrate that has a drive circuit part mounted in a first region, the drive circuit part driving the power semiconductor module, and a control circuit part mounted in a second region, the control circuit part controlling the drive circuit part, wherein the substrate is disposed so as to cover over the metal housing; a base plate that extends in a space in which the second region of the substrate and the capacitor module oppose to each other, and that is electrically connected to the metal housing; and a first noise shielding member that extends in a direction along a boundary between the first region and the second region of the substrate, wherein the first noise shielding member separates the space from a space of the housing in which the power semiconductor module is disposed, and the first noise shielding member is electrically connected to the metal housing or a ground of the control circuit part.

Power conversion device

A power conversion apparatus is provided with a bus bar connecting a cable connected to an external power supply or load and an internal circuit. To provide this power conversion apparatus with a wiring structure for noise propagation suppression without use of a filter circuit element that causes increase in the volume of the apparatus, the bus bar is provided with an electromagnetic band gap structure. Electromagnetic noise is thereby suppressed from propagating from the power conversion apparatus to the power supply or the load via the cable.

Power conversion apparatus

An image forming apparatus includes a feeding unit, a regulation member, a detection unit, and a control unit. The feeding unit feeds a recording material from a storage unit to a conveying path. In the storage unit, the regulation member controls a trailing edge of the recording material in a feeding direction. The detection unit detects time until the recording material reaches a predetermined position along the conveying path after the feeding unit begins to feed the recording material. The control unit determines a state of the regulation member based on the detected time. Where the time detected by the detection unit is a value between a first threshold and a second threshold, which is larger than the first threshold, the control unit determines that the regulation member is shifting from a position corresponding to a size of the recording material in the feeding direction.

Image forming apparatus and image forming system

An electric power conversion device includes a capacitor package. The capacitor package includes a first positive electrode bus bar that is connected to a positive electrode of the inverter circuit unit and connected to a smoothing capacitor. The capacitor package also includes a second positive electrode bus bar that is connected to a positive electrode on a battery side of the converter circuit unit and connected to the another smoothing capacitor. On a first side thereof the negative electrode bus bar directly overlaps the entire first positive electrode.

Electric power conversion device

A power conversion device possesses a capacitor module, a power module, a circuit board on which a control circuit is mounted and which has a ground layer formed in a control circuit mounting region, a noise shielding plate, and a metal housing. The circuit board is above the capacitor module, and the noise shielding plate faces the control circuit mounting region between the circuit board and the capacitor module, in which the noise shielding plate has a plurality of connection parts to be electrically connected to the metal housing. A first end part on the power module side of the noise shielding plate is on the power module side more than a second end part on the power module side of the ground layer, and the connection part which is the closest to the first end part is provided on the power module side more than the second end part.

An electrical power converting device includes: a converter circuit part that includes a switching circuit and a transformer and converts a voltage between a voltage on a high voltage power source side and a voltage on a low voltage power source side in an unidirectional or bidirectional manner; a filter circuit part that is connected to a low-voltage side of the converter circuit part and includes an inductor and a capacitor; a control circuit board on which a control part is mounted, the control part controlling the switching circuit; and a metal housing in which an interior space of the housing is divided into a first accommodation space and a second accommodation space by a partition wall including a cooling liquid flow path, wherein the converter circuit part is arranged in the first accommodation space, and the filter circuit and the control circuit board are arranged in the second accommodation space.

Electrical power converting device

Growing community of inventors

Yokohama, Japan

Masayoshi Takahashi