Sony Corporation

Dexerials Corporation

Sony Chemical & Information Device Corporation

Yoshito Ikeda

Seiji Kumagai

Satoru Sugita

Norio Saito

Katsuhisa Orihara

Masatoshi Hayakawa

Junichi Honda

Yoshihiro Kato

Eiji Nakashio

Junichi Sugawara

Tatsuo Kumura

Heikichi Sato

Seiichi Ogata

Kyu Kanno

Norikazu Yamamoto

Atsushi Suzuki

Hiroshi Kano

Shinichi Fukuda

Kenichi Kabasawa

Yoshiyuki Kunito

Teruo Inaguma

Shinji Takahashi

Makoto Watanabe

Kouki Hatsuda

Tomio Kobayashi

Naoto Kojima

Seiji Onoe

Tadashi Saito

Akio Mishima

Hironobu Moriyama

Toru Matsunaga

Hiroshi Samukawa

Hiroaki Narisawa

Hideaki Ojima

Seiichi Onodera

Toshiyuki Okada

Yasuhiro Fujita

Akira Urai

Katsumi Sakata

Akira Murakami

Kaoru Aoki

Hisashi Ando

Mineo Yorizumi

Toshihiko Yaoi

Noboru Wakabayashi

Keisuke Matsunami

Toshinobu Watanabe

Yoshitomo Ito

Kumi Takahashi

Etsuo Izu

Yoshiyuki Fukumoto

Mitsuaki Yokomizo

Terunobu Miyazaki

A communication device that, when incorporated in an electronic device, can reduce the size and the thickness of a housing of the electronic device while maintaining communication characteristics. The communication device includes an antenna coil that is arranged on a peripheral part of a housing surface facing a reader-writer of a mobile phone, a magnetic sheet that attracts the magnetic filed transmitted from the reader-writer to the antenna coil, and a communication processing unit that is driven by a current flowing through the antenna coil and communicates with the reader-writer. The magnetic sheet is arranged to be closer to reader-writer than the antenna coil in the central part, and the antenna coil is arranged to be closer to the reader-writer on the outer periphery side, and at least a part of the conductive line of the antenna coil is superimposed in a direction orthogonal to a circuit board.

Antenna module, communication device and method of manufacturing antenna module

An antenna apparatus, which is assembled into an electronic apparatus and made communicatable upon receipt of a magnetic field transmitted from a transmitter, includes a laminated member made by mutually superimposing an antenna coil inductively coupled to the transmitter and formed on an antenna substrate with a magnetic sheet for drawing a magnetic field transmitted from the transmitter to the antenna coil, a film-shaped protective member that covers the laminated member at least up to an end portion of the magnetic sheet, and a communication processing unit that carries out communication to and from the transmitter and is driven by an electric current flowing through the antenna coil.

Antenna apparatus, communication apparatus, and antenna apparatus manufacturing method

The present invention provides an antenna apparatus which can realize favorable communication properties while achieving downsizing of a casing of an electronic device when incorporated in an electronic device. An antenna module () which is incorporated in a mobile phone () and which is enabled to perform communication by receiving a magnetic field transmitted from a reader/writer () comprises an antenna coil () which is wound in a clearance () between an end portion () of a metallic plate () opposing the reader/writer () within a casing () of the mobile phone () and an inner peripheral wall () of the casing () so as not to surround an outer peripheral portion of the metallic plate () and which is inductively coupled with the reader/writer ().

Antenna apparatus and communication apparatus

The present invention provides a communication device that can reduce a housing of an electronic device in size and thickness when the communication device is built in the electronic device. The communication device includes: an antenna coil () arranged on an outer peripheral portion () of a housing () surface facing a reader/writer () of a mobile phone (); a magnetic sheet () that attracts a magnetic field transmitted from the reader/writer () to the antenna coil (); and a communication processing unit () that is driven by a current flowing in the antenna coil () and performs communication with the reader/writer (), wherein the magnetic sheet () is arranged on the reader/writer () side of the antenna coil () at a center portion (), and the antenna coil () is arranged on the reader/writer () side on an outer periphery () side.

Antenna device and communication device

Provided is an antenna module including: an antenna coil having a first pattern width; a magnetic sheet, which includes a first surface on which the antenna coil is to be arranged, and has a first distance being a distance on the first surface between an edge of the first surface and the antenna coil, the first distance being twice or more as large as the first pattern width; and a conductor, which includes a second surface on which the magnetic sheet is to be arranged while a surface opposite to the first surface of the magnetic sheet faces the second surface, and has a second distance being a distance on the second surface between an edge of the second surface and the antenna coil, the second distance being equal to or larger than the first distance.

Antenna module and electronic apparatus

Disclosed is an electromagnetic wave suppression sheet obtained by mixing metallic magnetic particles into a resin and formed into a sheet shape. In the electromagnetic wave suppression sheet, a coercive force is 320 [A/m] or more and a saturation magnetization is 0.35 [Wb/m] or more at a time when an external magnetic field of 1 kOe in an in-plane direction is applied.

Electromagnetic wave suppression sheet, device, and electronic apparatus

An electromagnetic wave suppression material that has a high light transmission performance even under a low temperature environment to display a sufficient electromagnetic wave suppression effect, and an electromagnetic wave suppression sheet that has the electromagnetic wave suppression material sealed in it, are disclosed. An electromagnetic wave suppression sheet () is composed of an electromagnetic wave suppression material () charged into a moisture-resistant film () whose peripheral part is laminated by a predetermined adhesive by way of sealing.

Electromagnetic wave suppression material and electromagnetic wave suppression sheet

In a battery pack including a battery case containing therein a battery cell, a wiring circuit board, and a liquid-absorbing element capable of absorbing the electrolyte leaking out from the battery cell, the liquid-absorbing element is inserted with looseness allowing for expansion in a gap formed by a retaining element on the inner wall surface of the battery case or retaining element on the wiring circuit board. Alternatively, a liquid-absorbing element consisting of a non-absorbent porous retaining element partially holding a liquid absorbent is used and the porous retaining element is fixed to the inner wall surface of the battery case or the wiring circuit board at an absorbent-free zone.

Battery packs

A resin composition having a viscosity suitable for encapsulating optical devices such as light-emitting devices is provided. Specifically, the cured product of the resin composition has a refractive index greater than or equal to that of epoxy resins, exhibits excellent heat resistance and light resistance, and has thermal stress relaxation properties. The curable resin composition contains a fluorene group-containing acrylate or methacrylate represented by the following formula and a specific monofunctional acrylate or methacrylate: wherein X is &#x2014;(CHCHO)&#x2014; or &#x2014;(CHCHO)&#x2014;CHCH(OH)CHO&#x2014; with n being 1 to 5 and R is an acrylic or methacrylic group.

Curable resin composition

A magnetic resistance element is provided that includes an upper magnetic layer, which is formed in contact with an anti-ferromagnetic layer, and at least two magnetic layers that are layered with tunnel barrier wall layers respectively inserted between the first magnetic layer and each of the at least two magnetic layers such that the magnetic resistance element has a combined resistance that corresponds to one of four predefined magnetic resistances and that can be changed to another of the four predefined magnetic resistances by applying a predefined recording magnetic field pattern to the magnetic resistance element.

Magnetic resistance element having four magnetization states and a magnetic device using the same

A magnetic tunneling element in which the tunnel current flows reliably to exhibit a stable magnetic tunneling effect. The magnetic tunneling element includes a first magnetic layer, a tunnel barrier layer formed on the first magnetic layer, and a second magnetic layer formed on the tunnel barrier layer. The tunnel barrier layer is a metal film oxidized by inductively coupled oxygen plasma and a second magnetic layer is formed on the tunnel barrier layer.

Method to manufacture magnetic tunneling elements using inductively coupled plasma

First and second magnetic layers are laminated though a tunnel barrier layer, wherein a region is formed in which change in a magnetic resistance ratio with respect to change in a voltage applied in such a manner that the second magnetic layer has a lower potential as compared with the potential of the first magnetic layer is smaller than change in a magnetic resistance ratio with respect to change in a voltage applied in such a manner that the second magnetic layer has a higher potential as compared with the potential of the first magnetic layer. Voltage is applied to the magnetic tunnel device in such a manner that the potential of the second magnetic layer is lower than that of the first magnetic layer so that dependency of the magnetic resistance ratio on the voltage is reduced. Thus, a stable tunnel current flows.

Magnetic tunnel device, method of manufacture thereof, and magnetic head

A magnetic tunneling effect device capable of displaying a so-called magnetic tunneling effect in stability, more specifically, a magnetic tunneling junction device in which a first magnetic metal layer and a second magnetic metal layer are connected together by ferromagnetic tunnel junction via an insulating layer and in which the conductance of the tunnel current is changed by the relative angle of magnetization of these magnetic metal layers. The ferromagnetic tunnel junction has a junction area of not larger than 1 10 m . For reliably controlling the junction area of the ferromagnetic tunnel junction, the insulating layer is formed by a first insulating layer for ferromagnetic tunnel junction and a second insulating layer formed on the first insulating layer for controlling the junction area of the ferromagnetic tunnel junction.

Magnetic tunneling junction device

A magnetic tunnelling element in which the tunnel current flows reliably in an insulating layer to exhibit a stable magnetic tunnelling effect. To this end, the magnetic tunnelling element at least includes a first magnetic layer, a tunnel barrier layer formed on the first magnetic layer and a second magnetic layer formed on the tunnel barrier layer. The tunnel current flows via the tunnel barrier layer between the first magnetic metal layer and the second magnetic metal layer. The surface of the first magnetic layer carrying the tunnel barrier layer has a surface roughness (Ra) of 0.3 nm or less.

Magnetic tunneling element and manufacturing method therefor

Magnetoresistive head with azimuth angle and magnetic recording/reproducing tape apparatus using same

Growing community of inventors

Tochigi, Japan

Yoshito Ikeda