Kabushiki Kaisha Toshiba

Canon Kabushiki Kaisha

Hitachi, Ltd.

Tdk Corporation

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Honda Giken Kogyo Kabushiki Kaisha

Toyoda Koki Kabushiki Kaisha

Mitsubishi Hitachi Power Systems, Ltd.

Toyota Jidosha Kabushiki Kaisha

Mitsubishi Heavy Industries Limited

Toshiba Matsushita Display Technology Co., Ltd.

Mitsubishi Power, Ltd.

Mitsubishi Jidosha Kogyo K.k.

Keiji Suzuki

Koji Asakawa

Kaoru Sawase

Mitsuru Onoda

Naoki Takahashi

Yuichi Ushiroda

Hiroaki Ibuki

Masahiro Yokota

Toshihiko Oyama

Takahiro Moriya

Toshio Ishikawara

Tatsuya Kato

Toshio Yamagiwa

Kenji Ikeda

Tsutomu Kono

Masaaki Suzuki

Tsuyoshi Uemura

Hiroyuki Hirano

Takahiro Sato

Akira Fujimoto

Yoshiharu Inaguma

Mikio Suzuki

Koji Obata

Takahiro Oguchi

Yuichi Takahashi

Masanori Takahashi

Kaoru Narita

Naotada Okada

Hirofumi Kubota

Yutaka Mori

Hitoshi Sugiyama

Masaki Watanabe

Nobuaki Tanaka

Nobuaki Nakasu

Kyosuke Haga

Kunihiko Eto

Keiichi Nakamura

Kaoru Koiwa

Goroei Wakatsuki

Hideo Eto

Masayoshi Ito

Hiroaki Kojima

Kengo Iwashige

Makoto Saito

Hideya Kato

Kayoko Oomiya

Kenichi Ohashi

Takami Miura

Yasuaki Kageyama

Junichi Tonotani

Yutaka Higashimura

Hisashi Morooka

Hiroki Nakatsuchi

Kiyotaka Kato

Kazuo Goto

Harumasa Tsuchiya

Takeo Horiike

Hideki Ookawa

Kazuhiko Aono

Yoshitaka Tsutsui

Shigehiro Maruoka

Takao Matsui

Yoshiyuki Kitahara

Ryoichi Menju

Nobuyasu Nishiyama

Hirotaka Murata

Yuichi Sekine

Satoshi Okutani

Hiroshi Shimoyama

Seiji Fukuoka

Shigeki Tounosu

Tomohiro Narita

Susumu Oda

Toshinao Kido

Hiroshi Miyao

Tsuyoshi Ikeda

Kazufumi Hayashikawa

Tamami Kurihara

Yoshihito Ito

Keisaku Yamada

Koji Ando

Takashi Date

Shunzo Tanaka

Junichi Miyagi

Masanori Natsume

Keisuke Kumano

Hidemi Masuda

Fumio Ukai

Yoshimi Kurahara

Makoto Sakata

Takeshi Arino

Hisao Arita

Akira Ohnishi

Hajime Adachi

Kozo Ohno

Kenichiro Shinada

Hironori Hibino

A rotation angle detection device has a magnetic field generation unit rotatably provided integrally with a rotating body that rotates about a rotation axis, a magnetic field detection unit that detects a magnetic field generated by the magnetic field generation unit, and a magnetic field transmission unit that covers a portion of the magnetic field generation unit. The magnetic field generation unit has a first surface, a second surface positioned opposite to the first surface, and a side surface connecting the outer peripheries of the first and the second surfaces. The magnetic field transmission unit includes a first magnetic field transmission unit that covers a portion of the side surface. The magnetic field generated by the magnetic field generation unit includes first and second magnetic field components. The magnetic field detection unit detects the first magnetic field component and the second magnetic field component.

Rotation angle detection device and electric control device

The present invention aims at providing A magnetic sensor that is less expensive and that is highly sensitive is provided. A magnetic sensor of the present invention has: a magnetic field detecting element; and a plurality of magnets that are arranged at intervals in a first direction, the magnets moving in the first direction relative to the magnetic field detecting element. The magnets have respective first faces that face the magnetic field detecting element. The magnets are magnetized in a second direction that crosses the first direction such that the first faces of an adjacent pair of the magnets have different polarities. The magnetic sensor further includes at least one soft magnetic body that is provided on the first face of at least one of the magnets.

Magnetic sensor, brake system using the same, and steering system using the same

A stroke sensor that allows adjustment of the magnetic field distribution without changing the positions of the magnets is provided. Stroke sensorhas magnetsA,B, and sensorA that detects a magnetic field that is generated by magnetsA,B. MagnetsA,B are movable relative to sensorA in first direction X. MagnetA has surfaceA that faces sensorA in second direction Z, magnetB has surfaceB that faces sensorA in second direction Z, and surfaceA and surfaceB have different polarities. A position in first direction X at which magnetic field intensity in second direction Z is zero is positioned between reference axis RA and magnetB. Reference axis RA is parallel to second direction Z and passes through middle point MP of minimum section S that includes magnetsA,B in first direction X.

Stroke sensor and brake system and steering system for vehicle using the same

A stroke sensor module is provided in which the contact area where the moving element slides on the main body is limited. A stroke sensor module has: a moving element that is moved in a first direction; a magnetic field generator that is moved in the first direction together with the moving element; a magnetic field detecting element that detects movement of the magnetic field generator; and a housing that houses a part of the moving element and the magnetic field generator. At least either the moving element or the magnetic field generator has a plurality of protrusions that are provided at different angular positions, as viewed in the first direction, and the housing has guide portions that guide the protrusions.

Stroke sensor module, structure and method for mounting stroke sensor module

A magnetic sensor device for detecting linear movement of a moving body includes a magnetic field generation unit and a magnetic field detection unit, which is provided to be capable of detecting the magnetic field generated by the magnetic field generation unit. The magnetic field detection unit is provided to be relatively moveable along a first axis accompanying linear movement of the moving body. The first axis is parallel to the direction of movement of the moving body. The magnetic field generation unit includes a first magnetic field generation unit and a second magnetic field generation unit. The first magnetic field generation unit and the second magnetic field generation unit are arranged substantially parallel to the first axis. A first line segment parallel to a first magnetization direction of the first magnetic field generation unit is inclined with respect to a second axis orthogonal to the first axis. A second line segment parallel to a second magnetization direction of the second magnetic field generation unit is inclined with respect to the second axis. The first line segment and the second line segment are positioned symmetrically with respect to the second axis and intersect each other to open toward the first axis.

Magnetic sensor device

A rotating electrical machine of the present invention evaluates a relative displacement of members and improves reliability further even when two or more members operate or move. A rotating electrical machine of the present invention comprises a stator and a rotor disposed on an inner side of the stator with a predetermined gap. The stator includes vibration measuring devices, each of the vibration measuring devices placed on each of at least two members included in the stator, the members having different displacements or phases with each other. The rotating electrical machine includes a device that acquires a relative displacement of one of the members included in the stator by evaluating a difference between displacements or phases measured by the vibration measuring devices and that evaluates a lifetime of the one of the members included in the stator based on the relative displacement.

Rotating electrical machine and diagnostic method for the same

The present invention provides a rotating electric machine and a method of detecting electric discharge (a defect detection method for a rotating electric machine), which are able to early detect vibration sparking between a stator winding and a stator core. A rotating electric machine of the present invention comprises a cylindrical stator including a stator core and a stator winding, a rotor disposed inside the stator, at least one key bar disposed on an outer periphery of the stator core and extended in an axial direction of the stator, and at least one current detector disposed on the key bar and configured to measure a current flowing in the key bar.

Rotating electric machine and defect detection method for rotating electric machine

A fixing force measuring apparatus including a section for applying a predetermined controlled hammering force to a wedge surface to generate a hammering sound, a section for controlling the hammering sound generated, a section for obtaining plural kinds of feature quantities such as a feature quantity due to a hammering sound energy, and a feature quantity due to a frequency of the hammering sound from the hammering sound collected by an arithmetic operation, and a section for obtaining a fixing force corresponding to the plural kinds of feature quantities by using a correlative relationship between the wedge fixing force previously obtained, and the plural kinds of feature quantities.

Apparatus and method for measuring fixing force

According to a method by a frequency analysis of tap tones at the time when a tightness of a ripple member fixed by an elastic force has been tapped by a hammer or a method of detecting a response at the time when the ripple member has been vibrated, an enough precision cannot be obtained for a tightness estimation. A tapping force is applied to a plurality of positions on the member surface, thereby allowing a plurality of tap tones to be generated. Feature amounts are obtained from the plurality of tap tones. An average feature amount is obtained by averaging the feature amounts. The tightness of the ripple member is estimated from the average feature amount by using a correlation between the tightness of the ripple member and the average feature amount.

Tightness measuring apparatus and measuring method

With a rotating electric machine testing method for applying a test voltage to an armature winding of the rotating electric machine to thereby test insulation performance of the armature winding, in the case where a rated voltage of the armature winding of the rotating electric machine is E, and an insulation test voltage of an armature winding of a sine wave voltage drive rotating electric machine at the rated voltage E is E/&#x221a;{square root over (3)} or E, a test voltage Vapplied to an armature winding of the inverter drive rotating electric machine is set to V=&#x3b1;&#xb7;E/&#x221a;{square root over (3)} or V'=&#x3b1;&#xb7;E, respectively, provided that &#x3b1;(=t/t), if the insulation thicknesses of the sine wave drive rotating electric machine is tand of the inverter drive rotating electric machine is t, thereby conducting a test on any of the AC voltage-current characteristic, AC tan &#x3b4;, and AC partial-discharge characteristics.

Method for testing an inverter drive rotating electric machine

In a rotating electrical machine, a conductive foil or conductive rubber is applied to the surface of insulation layer of a conductor series connection area or to the surface of insulation layer of a turn conductor of coils of rotating electrical machine winding, waveforms of grounding voltages of the individual turn conductor portions are measured through the medium of an electrostatic capacitance of the insulation layer of coil conductor series connection area or through the medium of the insulation layer of coil turn conductor, and a partial discharge is measured while measuring a voltage developing in the coil or across a winding turn in the coil from a difference between the waveforms of grounding voltages.

Method of testing partial discharge of rotating electrical machine driven by inverter

The present invention provides a method for analyzing growth of void of resin in a porous material which comprising the steps of inputting data of the shape of a porous material filled with a resin material, and dividing the shape of the porous material into three-dimensional solid elements; inputting physical properties of the porous material, and boundary conditions including a pressure that is applied to the porous material; obtaining a resin-density distribution in the porous material through fluid analysis using a database obtained by experimentally measuring in advance a temporal change in a volume of gas generated from the resin material and porous material during heating, changes in a compressive force and compressive displacement respectively occurring when the porous material impregnated with the resin is compressed, and a change in a flow resistance of the resin; and comprehensively grasping production, growth, and distribution of voids deriving from gas generation.

Method for analyzing growth of void of resin in a porous material

Magnetic members are arranged along a straight line and can be placed face-to-face with spin-valve magnetoresistive elements. The magnetic pole faces of the magnetic members which can be face-to-face with the spin-valve magnetoresistive elements have different magnetic polarities from the magnetic pole faces of neighboring magnetic members. The magnetic members are arranged at a uniform pitch. Each magnetic member is spaced from neighboring magnetic members. X/P is from 40% to 60%, where X is length of each magnetic member along an arrangement direction of the magnetic members, and P is pitch of the magnetic members along the arrangement direction.

Magnetic position detector

According to one embodiment, a power supply control device of a plasma processing device having a plasma generation unit which generates plasma in a process chamber. The power supply control device includes a radio frequency power supply, a storage unit, and a matching circuit. The radio frequency power supply supplies a power to the plasma generation unit. The storage unit stores matching information including a first matching value, a second process condition, and a third matching value. The first matching value corresponds to process information of a first process condition. The second matching value corresponds to process information of a second process condition. The third matching value corresponds to process information of a transient state where the first process condition is being switched to the second process condition. The matching circuit matches impedances based on the matching information.

Power supply control device, plasma processing device, and plasma processing method

A device operable to control a turning of a vehicle, includes: a motion controller operable to: control a first adjuster so as to increase a drive force applied to at least one of front wheels and rear wheels situated in an inner side of the turning, and control a second adjuster so as to increase the braking force applied to at least one of the front wheels and the rear wheels situated in an outer side of the turning; and control the first adjuster so as to increase the drive force applied to at least one of the front wheels and the rear wheels situated in an outer side of the turning, and control the second adjuster so as to increase the braking force applied to at least one of the front wheels and the rear wheels situated in an inner side of the turning.

Device operable to control turning of vehicle

Growing community of inventors

Okazaki, Japan

Keiji Suzuki