Nitto-denko Corporation

Masami Inoue

Hisashi Tsuda

Takezo Hatanaka

Masayuki Hodono

Taiki Sueyoshi

Yuichi Tsujita

Mitsuru Honjo

Akiko Nagafuji

Nam Tung Vu

Takeshi Tanaka

Takashi Oda

Hiroshi Yamazaki

Martin John McCaslin

Daisuke Yamauchi

Hiromoto Haruta

Hajime Nishio

Ryusuke Naito

Toru Mizutani

Tetsuya Oosawa

Voonyee Ho

Mayu Takase

Daigo Tsubai

Hideshi Yamakawa

Yasuyuki Ota

Kaoru Ito

A wireless power transmission system includes a power-supplying device including an electronic oscillator that generates electric power having a frequency of 1 MHz or more and 5 MHz or less, and a power-supplying coil member in which the electric power flows; and a power-receiving device including a power-receiving coil member that is capable of generating electric power based on the magnetic field generating from the power-supplying coil member, wherein the power-receiving coil member is a sheet coil including an insulating layer and a first coil pattern disposed at one side of the insulating layer, the first coil pattern is composed of wires, and the wires are disposed in spaced apart relation from each other with a predetermined space provided therebetween in the radial direction of the first coil pattern.

Wireless power transmission system and sheet coil

A wireless power transmission system includes a power transmission device including a plurality of power transmission portions, and a power receiving object including a power receiving portion capable of receiving an electric power wirelessly transmitted from the power transmission portion. Of the plurality of power transmission portions, a specific power transmission portion transmits the electric power to the power receiving portion.

Wireless power transmission system

A variable magnetic field in which a power-supplying coil and a power supplying resonator exist is generated only by the power-supplying coil. Power-supplying coils and each of which generates a variable magnetic field due to the supply of a variable current via a first current path on one coil end a side and a second current path on the other coil end side; resonance capacitors which are provided on the first current path and the second current path; and a power-supplying coil short-circuit mechanism which is able to cause at least one of the power-supplying coils and to function as a power supplying resonator by allowing the end portions and of the first current path and the second current path to short-circuit with each other are provided.

Magnetic field formation device, power supplying device, power receiving device, power receiving/supplying device, portable device, coil device, and magnetic field formation method

A magnetic field which is partially a variable magnetic field with high or low magnetic field strength is formed at a predetermined region. A plurality of coil pieces and generating a variable magnetic field and a power-supplying coil which is provided to generate an induced current for at least one of the coil pieces and are provided, and coil ends of two or more of the coil pieces and are connected to each other.

Magnetic field formation device, power supplying device, power receiving device, power receiving/supplying device, and portable device

A magnetic field is formed at a predetermined region. A magnetic field formation device configured to generate a variable magnetic field at a predetermined region includes power supplying resonators. All of the power supplying resonators are provided so that coil surfaces oppose the predetermined region, and at least one of the power supplying resonators is provided to have a coil surface direction intersecting with the coil surface direction of the other one of the power supplying resonators.

Magnetic field formation device, and power receiving device

A magnetic field is formed at a predetermined region. A magnetic field formation device configured to generate a variable magnetic field at a predetermined region A includes: at least one power supplying resonator configured to generate the variable magnetic field; and power-supplying coils configured to generate an induced current in the at least one power supplying resonator, all of the power-supplying coils and the at least one power supplying resonator being disposed so that coil surfaces oppose the predetermined region A, and at least one of the power-supplying coils being disposed to have a coil surface direction which intersects with coil surface directions of the other power-supplying coils.

A driving device is easily handled at the start and end of charging. A housing cup which includes a bottom surface portion on which at least one driving device including a power-receiving device is placed and a side face portion extending outward from the peripheral edge portion of the bottom surface portion and is formed so that an upper peripheral edge portion of the side face portion is an opening portion, and a magnetic field formation device which is configured to generate a variable magnetic field at a housing region surrounded by the bottom surface portion and the side face portion to allow the power-receiving device to receive power irrespective of the direction and position of the power-receiving device are provided.

Power supplying device and power receiving/supplying device

A wireless power transmission device supplies power by means of a resonance phenomenon, from a power supply module equipped with at least a power-supply resonator to a power-receiving module equipped with at least a power-receiving resonator. For the power-supply resonator and the power-receiving resonator, a value for a transmission characteristic of a power source frequency for power is set so as to have two peak bands, and By setting the power source frequency for the power supplied to the power supply module to the power source frequency band corresponding to one of the two peak bands of the transmission characteristic, magnetic field spaces having a magnetic field strength less than the surrounding magnetic field strength are formed in the area near the power-supply resonator and the power-receiving resonator.

Wireless power transmission device capable of forming magnetic field space, and magnetic field space formation method

By supplying power from the power-supplying resonator to the power-receiving resonator by means of resonance, an electromagnetic space having a relatively low magnetic field strength is formed between the power-supplying resonator and the power-receiving resonator. In so doing, the position where the electromagnetic space is formed is changed by setting the frequency of the AC power supplied from an AC power source to the power-supplying module to an antiphase resonance mode or an inphase resonance mode, and the size of the electromagnetic space is changed by changing the distance between the power-supplying coil and the power-supplying resonator and the distance between the power-receiving resonator and the power-receiving coil.

Method of forming electromagnetic space

First and second conductor layers are formed on a main surface of a base layer. A tapered slot is formed between the first and second conductive layers. A first slit is formed at the first conductor layer, and a second slit is formed at the second conductor layer. Thus, the first conductor layer is divided into a first device connection portion and a first antenna portion, and the second conductor layer is divided into a second device connection portion and a second antenna portion. A semiconductor device is connected to the first and second device connection portions.

Antenna module and method for manufacturing the same

In the disclosed magnetic element () for wireless power transmission, in a cross section that matches the direction of magnetic coupling, a conductor section () and a magnetic material section () that abuts the conductor section () are disposed in parallel in a direction perpendicular to the direction of magnetic coupling, and one of either the conductor section () or the magnetic material section () has a protruding region () that protrudes in the direction of magnetic coupling more than the other does.

Magnetic element for wireless power transmission and power supply device

Provided are an opto-electric hybrid board which eliminates the necessity of an aligning operation of a core of an optical waveguide unit and an optical element of an electric circuit unit and which is excellent in mass-productivity, and a manufacturing method therefor. The opto-electric hybrid board includes an optical waveguide unit and an electric circuit unit having an optical element mounted thereon, the electric circuit unit being coupled to the optical waveguide unit. The optical waveguide unit includes fitting holes which are formed in a surface of an overcladding layer and are located and formed at predetermined locations with respect to one end surface of a core. The electric circuit unit includes protruding portions which fit into the fitting holes and are located and formed at predetermined locations with respect to the optical element.

Opto-electric hybrid board and manufacturing method therefor

Provided are an opto-electric hybrid board and a manufacturing method therefor. The opto-electric hybrid board includes an optical waveguide unit and an electric circuit unit having an optical element mounted thereon, the electric circuit unit being coupled to the optical waveguide unit using coupling pins. The optical waveguide unit includes fitting holes for fitting the coupling pins thereinto, which are formed in a surface of an overcladding layer, located and formed at predetermined locations with respect to one end surface of a core. The electric circuit unit includes fitting through holes for fitting the coupling pins therethrough, located and formed at predetermined locations with respect to the optical element. The optical waveguide unit and the electric circuit unit are coupled to each other in a state in which the coupling pins fit through the fitting through holes and fit into the fitting holes.

A base insulating layer is formed on a suspension body. A lead wire for plating and a wiring trace are integrally formed on the base insulating layer. A cover insulating layer is formed on the base insulating layer to cover the lead wire for plating and the wiring trace. A thickness of a portion of the cover insulating layer above a region of the base insulating layer in which the lead wire for plating is formed is set smaller than the thickness of a portion of the cover insulating layer above other regions of the base insulating layer.

Printed circuit board and method of manufacturing the same

Provided are an opto-electric hybrid board and a manufacturing method therefor. An optical waveguide unit includes protruding portions which are extendingly provided at portions of at least one of an undercladding layer and an overcladding layer, and the protruding portions are located and formed at predetermined locations with respect to a light transmitting surface of a core. An electric circuit unit includes a bent portion having fitting holes into which the protruding portions fit and having an optical element. The fitting holes are located and formed at predetermined locations with respect to the optical element. The optical waveguide unit and the electric circuit unit are coupled to each other in a state in which the protruding portions fit into the fitting holes to form an opto-electric hybrid board.

Growing community of inventors

Ibaraki, Japan

Masami Inoue