Ihi Corporation

The University of Tokyo

Nissan Motor Company Limited

Toppan Printing Co., Ltd.

Nippon Steel Stainless Steel Corporation

Jun Araki

Susumu Tokura

Kohzo Ito

Kentarou Furiya

Tatsuya Suzuki

Motonao Niizuma

Kenji Nishimura

Masahiko Yamanaka

Kentarou Watanabe

Masashi Goto

Takahiko Murayama

Motoo Yanagiuchi

Akio Ueda

Masakazu Hara

Kentaro Furiya

Hideo Naganuma

Kenichi Takahashi

Takao Nakajima

Toshio Nakamura

Noriyuki Sasaki

Shunsuke Yajima

Atsushi Asano

Eiichi Urushibata

Junichi Hamada

Toshio Tanoue

Shinya Kono

Changming Zhao

Yuji Takatsu

Hideki Nagano

Eiichiro Fujiwara

Masahiko Goto

Kou Nishimura

Takayoshi Bando

Nozomu Fukuda

Tatsuya c/o Intel Property Dept Nissan Motor Co Ltd Suzuki

Masahiko Intel Property Dept Nissan Motor Co Ltd Yamanaka

Kentarou Intel Property Dept Nissan Motor Co Ltd Watanabe

Masahiko c/o Ip Dpt Of Nissan Motor Co Ltd Yamanaka

Kentarou c/o Ip Dpt Of Nissan Motor Co Ltd Watanabe

Tatsuya c/o Ip Dpt Of Nissan Motor Co Ltd Suzuki

Tatsuya c/o Nissan Motor Co Ltd Suzuki

Kentarou c/o Nissan Motor Co Ltd Watanabe

Masahiko c/o Nissan Motor Co Ltd Yamanaka

A ferritic stainless steel sheet and a steel pipe as a material suitable for a heat-resistant component that is required to have especially excellent formability are provided. The ferritic stainless steel sheet contains 10 to 20 mass % of Cr and a predetermined amount of C, Si, Mn, P, S, Al and one or both of Ti and Nb, a {111}-orientation intensity being 5 or more and {411}-orientation intensity being less than 3 at a portion in the vicinity of a sheet-thickness central portion of the ferritic stainless steel sheet. Further, with similar composition and by setting {111}&#x3c;110&#x3e;-orientation intensity at 4.0 or more and {311}&#x3c;136&#x3e;-orientation intensity at less than 3.0, a relationship r&#x2265;&#x2212;1.0t+3.0 (t(mm): sheet thickness, r: average r-value) is satisfied, thereby providing a ferritic stainless steel sheet and a steel pipe with excellent formability.

Ferrite-based stainless steel plate, steel pipe, and production method therefor

An information processing system includes: a first acquisition unit that acquires battery information on a battery of each of one or more vehicles; a second acquisition unit that acquires supply source information on a state of a power supply source; a selection unit that selects a vehicle for providing electric power for the power supply source as a power source out of the one or more vehicles, based on the supply source information and the battery information; and a request unit that requests the vehicle selected as the power source to provide the electric power.

Information processing system

A coil device includes a coil portion including at least a coil, a housing including a base disposed on a side of a first surface of the coil portion and a cover disposed on a side of a second surface of the coil portion and accommodating the coil portion in an internal space formed by the base and the cover, and a fixing member fixing the cover to the base. The fixing member includes a first fixing portion disposed along at least the cover on a first outer periphery of the housing surrounding the base and the cover.

Coil device

A coil device is provided with a coil and a holder which holds the coil. The coil is formed by a conductive wire being wound in a wound wire direction and includes a plurality of turns that are adjacent in a direction intersecting the wound wire direction. The holder includes a plurality of first holding portions that hold the conductive wire in such a way that the conductive wire passes along a plurality of first paths corresponding to the plurality of turns, and at least one second holding portion which holds the conductive wire in such a way that the conductive wire passes along a second path extending in a direction intersecting the wound wire direction and connecting the first paths.

Coil device and holder

A foreign object detection device for a coil device including a second coil to transmit power to a first coil wirelessly or receive power from the first coil wirelessly including: a foreign object detection coil configured to be located between the first coil and the second coil; and a cover configured to cover an upper portion of the foreign object detection coil, wherein a top surface of the cover includes at least one inclined surface inclined relative to a coil plane of the second coil, and the inclined surface is inclined downward from a low sensitivity region where detection sensitivity of the foreign object detection coil is relatively lower to a high sensitivity region where the detection sensitivity of the foreign object detection coil is relatively higher.

Power transmission system, foreign object detection device, and coil device

According to the present disclosure, a power transmitter includes a first coil configured to wirelessly transmit power to a second coil of a power receiver, a direct current (DC)/alternating current (AC) converter configured to convert DC power into AC power and supply the AC power to the first coil, and a controller configured to perform frequency control for selecting a frequency of the AC power. The controller at least selects the frequency so that the DC power is less than or equal to withstand power of the DC/AC converter regardless of an amount of misalignment of the second coil with respect to the first coil.

Power transmitter

A coil device according to an aspect of this disclosure includes a coil portion including a conductive wire and a holding member that holds the conductive wire, and a cooling flow path through which a cooling fluid flows is provided in the holding member.

Coil device and coil system

A coil device of solenoid type includes a coil portion having a bobbin and a conductive wire wound around the bobbin, a housing for accommodating the coil portion, and at least one fastener for fastening the bobbin and the housing. The conductive wire includes a plurality of extending portions extending along a wound wire direction on the bobbin and having gaps in a winding axis direction, and the coil portion includes an enlarged portion in which a gap between extending portions adjacent to each other in the winding axis direction is wider than a gap between other extending portions. The fastener is provided in the enlarged portion.

A coil device of solenoid type includes a coil portion having a bobbin and a conductive wire wound around the bobbin, a housing for accommodating the coil portion, and at least one fastener for fastening the bobbin and the housing. The conductive wire includes a plurality of extending portions extending along a wound wire direction on the bobbin and having gaps in a winding axis direction. The fastener is provided between the plurality of extending portions and is obliquely disposed with respect to a plane orthogonal to the winding axis direction.

A power transmission coil device includes a first helical coil having a first conductive wire forming a helical shape around an axis, and a second helical coil having a second conductive wire forming a helical shape around the axis, in which the first helical coil is electrically connected in parallel to the second helical coil, and the first conductive wire and the second conductive wire arranged along a direction of the axis.

Provided is a first coil device that faces a second coil device in a facing direction, and wirelessly transmits or receives power, the first coil device including a first coil portion, and a first auxiliary magnetic member provided adjacent to the first coil portion in a first direction orthogonal to the facing direction. The first auxiliary magnetic member is configured to be closer to the second coil device with increasing distance in the first direction from the first coil portion.

Coil device, wireless power transfer system, and auxiliary magnetic member

A first coil device includes a first coil portion that faces a second coil portion of a second coil device in a first direction and includes a conductive wire, and at least one nonmagnetic member that includes a protrusion protruding to an outside of the first coil portion in a second direction orthogonal to the first direction. The nonmagnetic member includes an eddy current interrupter that interrupts a part of an eddy current generated in the nonmagnetic member.

According to an embodiment, a management system manages a power transmitter capable of wirelessly transmitting power to a power receiver of a movable object. The management system includes a detection unit configured to detect a state of the power transmitter, a storage unit configured to store a relationship between the state of the power transmitter and a power transmission level indicating possibility of power transmission of the power transmitter, an identification unit configured to identify the power transmission level corresponding to the state detected by the detection unit, and an output unit configured to output the identified power transmission level before the power transmitter starts transmitting power. The power transmission level includes at least an unavailable level indicating that power transmission is impossible, a limitation level indicating that power transmission is possible under a predetermined limitation, and a normal level indicating that power transmission is possible without limitation.

System, method, and program for managing power transmission device

A wireless power-supplying system according to the present disclosure includes a power-transmitting device and a power-receiving device. The power-transmitting device includes a power-transmitting coil to which AC power of a certain frequency is input from a power supply and a controller which controls a frequency. The power-receiving device includes a power-receiving coil magnetically coupled with the power-transmitting coil with a certain coupling coefficient and a power-receiving side series element connected to the power-receiving coil in series and having imaginary impedance jZ. The imaginary impedance is defined so that impedance when a power-receiving side is seen from the power supply is independent of the coupling coefficient when the frequency and the coupling coefficient are predetermined values. The controller changes the frequency according to at least one of power-transmitting status information of the power-transmitting device and power-receiving status information of the power-receiving device when the coupling coefficient changes.

Wireless power-supplying system

Growing community of inventors

Tokyo, Japan

Jun Araki