Harada Industry Co., Ltd.

Alps Electric Co., Ltd.

Alps Green Devices Co., Ltd.

Tdk Corporation

Toyota Jidosha Kabushiki Kaisha

Alps Green Devices., Ltd.

Alps Alpine Co., Ltd.

Hidekazu Kobayashi

Masamichi Saito

Yoshihiro Nishiyama

Yosuke Ide

Naoya Hasegawa

Kazumasa Nishimura

Ryo Nakabayashi

Akira Takahashi

Kenji Ichinohe

Masahiro Iizuka

Tsuyoshi Nojima

Tatsuya Kogure

Kenichi Tanaka

Eiji Umetsu

Makoto Hayashi

Naoki Sakatsume

Shigenobu Miyajima

Kazuaki Ikarashi

Takeshi Sakano

Akio Hanada

Minoru Sasaki

Seigen Maeno

Toshiro Yokoyama

Kota Asatsuma

Yasuhiko Nishioka

Conglin Yang

Hideharu Matsuo

Satoshi Oba

Norimasa Okanishi

Mitsuo Minakawa

A vehicle exterior device includes: a base member; a cover attached to the base member in a watertight manner, the cover and the base member forming a housing space therebetween, the cover having at least one opening; a functional unit including a holder located on the base member in the housing space, and a functional component supported by the holder with a leading end thereof being exposed through the opening; and a sealing portion located around the opening between an outer face of the functional unit and an inner face of the cover.

Vehicle exterior device

An antenna module configured to receive a radio communication signal includes: a circuit board on which a signal processing circuit is placed; a patch antenna stacked on the circuit board; a parasitic element disposed above the patch antenna, having held portions having at least two sides opposed to each other, and configured to improve elevation angle reception characteristics of the patch antenna; an integrated resin holder supporting the circuit board and the parasitic element, having at least a pair of parasitic element locking pawls that sandwich and support the two sides of the held portions of the parasitic element from both sides such that the distance between the patch antenna and the parasitic element is kept constant.

Antenna module

A base plate where at least part of an antenna member is disposed, an inner cover attached to the base plate so as to cover at least part of the antenna member, and an outer cover covering the inner cover on the base plate, a locking claw for fixing the outer cover is provided on the inner cover side. A fixing piece engaged with the locking claw is provided on the outer cover side, an engaging portion of the fixing piece is formed as a concave surface instead of the through opening. The configuration eliminates the need for providing the fixing piece with a claw-shaped protrusion, damage of the fixing piece can be prevented. In addition, the fixing piece is not readily subject to a defect such as a weld, so that increased mechanical strength can be improved.

Antenna unit

Provided is an on-board antenna waterproof structure that eliminates the need for assembling a waterproof structure by manual work, thus preventing an attachment error, and in which waterproof resin is strongly fused to a resin base. A waterproof structure applied in an on-board antenna installed on an antenna installment surface comprises a resin base () made of resin, and a flexible, antenna installed-side waterproof resin portion (). The resin base () has one surface facing the antenna installment surface and the other surface being covered by an antenna cover () defining an outer shape of the on-board antenna. The antenna installed-side waterproof resin portion () abuts the antenna installment surface.

Vehicle-mounted antenna waterproof structure

Low profile antenna for a vehicle

The vehicle roof mount antenna to be detachably mounted on a vehicle roof is mainly constituted by an antenna cover, an antenna base, a boss, a pad, an annular rib, and an annular groove portion. The padhas a boss holethrough which the bosspenetrates and is disposed between the antenna baseand the vehicle roof R. The annular rib, which is made of an elastic material, is provided on the vehicle roof R side surface of the pad. When the vehicle roof mount antenna is fixed to the vehicle roof R, the annular ribis inclined from the boss holetoward a periphery of the pad. The annular groove portionis provided at a position where the pressing force of the annular ribagainst the vehicle roof R can be reduced.

Vehicle roof mount antenna

A magnetic balance type current sensor includes a magnetoresistance effect element whose resistance value changes owing to the application of an induction magnetic field from a current to be measured; a feedback coil disposed in the vicinity of the magnetoresistance effect element and generating a cancelling magnetic field cancelling out the induction magnetic field; a magnetic field detection bridge circuit including two outputs causing a voltage difference corresponding to the induction magnetic field to occur; and a magnetic shield attenuating the induction magnetic field and enhancing the cancelling magnetic field, wherein, on the basis of the current flowing through the feedback coil at the time of an equilibrium state in which the induction magnetic field and the cancelling magnetic field are cancelled out, the current to be measured is measured, wherein the feedback coil, the magnetic shield, and the magnetic field detection bridge circuit are formed on a same substrate.

Magnetic balance type current sensor

A magnetic-balance-system current sensor includes: a magnetoresistive element, a resistance value of the magnetoresistive element being changed by applying an induction magnetic field generated by a measurement target current; magnetic cores disposed near the magnetoresistive element; a feedback coil disposed near the magnetoresistive element and configured to generate a cancelling magnetic field that cancels out the induction magnetic field; and a magnetic-field detecting bridge circuit having two outputs. The measurement target current is measured on the basis of a current flowing through the feedback coil when the induction magnetic field and the induction magnetic field and the cancelling magnetic field cancel each other out. The feedback coil, the magnetic cores, and the magnetic-field detecting bridge circuit are formed on a same substrate. The feedback coil is of a spiral type, and the magnetic cores are provided above and below the feedback coil.

Magnetic-balance-system current sensor

A magnetic coupling type isolator includes: a magnetic field generator for generating an external magnetic field by an input signal; a magnetoresistive element for detecting the external magnetic field and converting the detected magnetic field into an electric signal, the magnetoresistive element being electrically insulated from the magnetic field generator and positioned in a location capable of being magnetically coupled so as to be overlapped with the magnetic field generator as seen in a top plan view; and first and second shield films overlapped with the magnetic field generator and the magnetoresistive element as seen in a top plan view, wherein a distance between the magnetoresistive element and the second shield film is set to 8 to 100 &#x3bc;m.

Magnetic coupling type isolator

A current sensor includes a magnetic detecting element, a bridge circuit including a plurality of resistance elements, and a feedback coil placed adjacent to the magnetic detecting element and generating a cancelling magnetic field for cancelling the induced magnetic field based on the output from the bridge circuit. The wiring patterns forming the bridge circuit are routed so as not to intersect with each other when seen in a plan view. Only the resistance elements constituting each series circuit of the bridge circuit are connected to each other by the wiring pattern in an enclosed area which encloses each resistance element constituting the bridge circuit, and the wiring pattern branched from the wiring pattern is connected to the terminal which is installed in a quantity of only one, outside the enclosed area.

Current sensor including magnetic detecting element

A magnetic balance type current sensor measures a measured current which flows in a feedback coil when electrical conduction is provided by a voltage difference according to an induction magnetic field from the measured current and an equilibrium state is reached in which the induction magnetic field and a cancel magnetic field cancel each other. Sensor elements in a pair are arranged at positions with magnetic field from the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of one sensor element is aligned in a forward direction with respect to the magnetic field formed by the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of the other sensor element is aligned in a reverse direction with respect to the magnetic field formed by the measured current.

Magnetoresistive effect elements Rto Rare a TMR element or CPP-GMR element. A multilayer film forming the magnetoresistive effect elements is formed to have a width dimension Tand a length dimension Lperpendicular to the width dimension T. The length dimension Lis longer than the width dimension T. The width dimension of magnetic field generators of the coil is T. The multilayer filmis positioned within the width dimension Tof 60% in total of 30% each to the width dimension Tof the magnetic field generatorsandof the coil in the direction towards both sides from the center of the width dimension Twhen seen in a plan view.

Magnetic coupling-type isolator

A magnetic coupling type isolator includes: a magnetic field generator for generating an external magnetic field by an input signal; a magnetoresistive element for detecting the external magnetic field and converting the detected magnetic field into an electric signal, the magnetoresistive element being electrically insulated from the magnetic field generator and positioned in a location capable of being magnetically coupled so as to be overlapped with the magnetic field generator as seen in a top plan view; first and second shield films overlapped with the magnetic field generator and the magnetoresistive element as seen in a top plan view; and a third shield film disposed to surround the magnetoresistive element.

A tunneling magnetic sensing element includes a laminate in which a pinned magnetic layer having a magnetization direction pinned, an insulating barrier layer, and a free magnetic layer having a magnetization direction variable with an external magnetic field are laminated in order from below. The insulating barrier layer is made of Mg&#x2014;O. The free magnetic layer has a soft magnetic layer and an enhanced layer disposed between the soft magnetic layer and the insulating barrier layer to have a spin polarization ratio higher than the soft magnetic layer. An insertion magnetic layer made of one selected from Co&#x2014;Fe&#x2014;B, Co&#x2014;B, Fe&#x2014;B, and Co&#x2014;Fe is inserted into the soft magnetic layer in a direction parallel to the interface of each layer constituting the laminate, and the soft magnetic layer is divided into multiple layers in a thickness direction through the insertion magnetic layer.

Tunneling magnetic sensing element with insertion magnetic layer inspired into soft magnetic layer

A tunneling magnetic sensing element includes: a pinned magnetic layer whose direction of magnetization is pinned in one direction; an insulating barrier layer; and a free magnetic layer whose direction of magnetization changes in response to an external magnetic field. The pinned magnetic layer, the insulating barrier layer and the free magnetic layer are deposited in the named order. A first protective layer composed of a platinum-group element is disposed on the free magnetic layer, and a second protective layer composed of Ti is disposed on the first protective layer.

Growing community of inventors

Niigata-ken, Japan

Hidekazu Kobayashi