Nissan Motor Company Limited

Tdk Corporation

Asahi Kogaku Kogyo Kabushiki Kaisha

Nippon Mitsubishi Oil Corporation

Asahi Kogaku Kogyo K.k.

Hoya Corporation

Asahi Kasei Kogyo Kabushiki Kaisha

Agency of Industrial Science and Technology

Asahi Kogaku Kabushiki Kaisha

Nissan Motor Corp.

Hiroyuki Hirano

Sigeaki Yamamuro

Yoshikazu Tanaka

Haruyoshi Kumura

Keiju Abo

Yoshiro Morimoto

Masaki Nakano

Makoto Takahashi

Teiichiro Oka

Yuji Shimomura

Toshio Kikuchi

Ryoichi Menju

Eiji Inada

Ryuichi Idoguchi

Satoshi Suda

Takeshi Aso

Mikio Sumiyoshi

Shinichirou Kitada

Takayuki Ito

Takashi Iizuka

Minoru Suzuki

Kenji Ikeura

Hiromasa Sakai

Yutaro Kaneko

Shinichiro Kitada

Yosuke Antoku

Hirofumi Shimizu

Kazuhiro Takatori

Nobuteru Hitomi

Kunihiko Morikawa

Seiji Fukuoka

Eio Sagara

Hisashi Kitahara

Masaki Sugimoto

Yuutarou Kaneko

Kazuhiro Yamada

Yasuyuki Watanabe

Toshikazu Oshidari

Kaoru Narita

Yasunori Arai

Nobutaka Minefuji

Yasushi Narita

Motoharu Nishio

Shigenori Kinoshita

Takahiro Moriya

Toshihiko Oyama

Takao Yanase

Tatsuya Nagato

Hiroaki Kuramoto

Hiyoshi Yamada

Kenji Endo

Tomomasa Osumi

Takeshi Asou

Kyoichiro Mori

Kae Azami

Yutarou Kaneko

Masayoshi Kimura

Mikoto Ooishi

Masamitsu Wada

Kazuhiro Kikuchi

Tamotsu Kawamura

Yasuhiko Yamagishi

A magnetic field detection device includes a magnetic field generation unit that generates a magnetic field, a magnetic field detection unit that detects the magnetic field, a first housing that has an accommodation unit that accommodates the magnetic field detection unit so that the magnetic field detection unit is exposed, and a second housing that movably accommodates a moving body. The strength or angle of the magnetic field generated from the magnetic field generation unit and applied to the magnetic field detection unit changes in accordance with movement of the moving body. The second housing has a mounting unit on which the first housing is mounted. The first housing is mounted on the mounting unit via a seal member that surrounds the magnetic field detection unit, so that the mounting unit is between the magnetic field detection unit and the moving body, and the inside of the accommodation unit is sealed by the seal member and the mounting unit.

Magnetic field detection device, magnetic sensor module, magnetic control device, motor and transmission

A magnetic sensor for detecting magnetism generated from a conductor in which a current flows in a first direction includes a magnetic detection unit capable of detecting the magnetism, a magnetization core, and a magnetic shield. The magnetization core includes a first core section, which is substantially parallel to the first direction, and a second core section and third core section, which are each continuous from both end portions of the first core section in a second direction that is orthogonal to the first direction. The second core section and the third core section each extend from an end portion of the first core section to follow a third direction that is orthogonal to the first direction and the second direction. The magnetic detection unit has a sensitivity direction in the second direction and is positioned in a core gap sandwiched between the vicinity of the end portion of the second core section and the vicinity of the end portion of the third core section in the third direction. The magnetic shield includes a plate-shaped shield portion positioned to overlap the core gap when viewed along the third direction.

Current sensor and electric control device

A current sensor includes a magnetic detector and a first soft magnetic body. The magnetic detector is configured to be subjected to a magnetic flux that is to be generated when a current flows through a conductor along a first axis direction, the magnetic flux being in a second axis direction. The first soft magnetic body includes a first portion, a second portion disposed between the conductor and the first portion, and a third portion magnetically coupling the first portion and the second portion to each other. The first soft magnetic body is spaced from both of the conductor and the magnetic detector, with the first portion, the second portion, and the third portion surrounding the magnetic detector along a first plane orthogonal to the second axis direction.

Current sensor, and electric control apparatus including the current sensor

A position detection apparatus includes a magnetic unit and a sensor. The magnetic unit includes a magnetic member and a retainer. The magnetic member includes a magnet and a first magnetic yoke. The magnet extends in an axial direction and has a cross-section orthogonal to the axial direction, and a first maximum outer diameter in a radial direction orthogonal to the axial direction. The cross-section has a substantially constant area in the axial direction. The first magnetic yoke is disposed adjacent to the magnet in the axial direction and has a second maximum outer diameter in the radial direction. The second maximum outer diameter is greater than the first maximum outer diameter. The retainer extends in the axial direction and retains the magnetic member. The sensor detects a magnetic field that changes in association with a movement of the magnetic unit along the axial direction.

Magnetic unit, position detection apparatus, and magnetic member

A current sensor that is less affected by the residual magnetization is provided. A current sensor of the present invention has a magnetic circuit that is magnetized by electric current; a first magnetic field detecting element that is positioned where a magnetic field, when the electric current is present, is directed in a same direction as a magnetic field that is caused by residual magnetization of the magnetic circuit when the electric current is not present; and a second magnetic field detecting element that is positioned where a magnetic field, when the electric current is present, is directed opposite to a direction of a magnetic field that is caused by residual magnetization of the magnetic circuit when the electric current is not present.

Current sensor

A rotational angle detection device includes a magnet with n pole pairs (where n&#x2265;3) provided to be integrally rotatable with a rotating body; magnetic detection parts including first and second magnetic detection parts; a corrected signal generation part generating first and second corrected signals; and a rotational angle detection part detecting the rotational angle of the rotating body based on the first and second corrected signals. The waveform of the first and second detection signals have a phase difference of 90&#xb0; from each other. The corrected signal generation part adds the first sensor signals and adds the second sensor signals. The region at the perimeter of the magnet includes first through nth regions, and at least two of the first and second magnetic sensor parts are positioned in different regions from each other among the first through nth regions.

Rotational angle detection device

A sensor is provided with a magnetic detection element that can output an output voltage within a predetermined voltage range according to a magnetic field intensity, an output voltage fixing part that can fix a voltage value of the output voltage to a voltage value outside the voltage range, and a drive voltage output part that can output a drive voltage for driving the output voltage fixing part. The drive voltage fixing part outputs the drive voltage to the output voltage fixing part when the ambient temperature of the drive voltage output part exceeds a predetermined threshold, and when triggered by input of the drive voltage, the output voltage fixing part fixes the voltage value of the output voltage to a voltage value outside the voltage range.

Sensor for detecting temperatures

A position detection system includes a first magnet, a first soft ferromagnetic member, and a magnetic detector. The first magnet is magnetized in a first direction and generates a first magnetic field including a first magnetic line. The first soft ferromagnetic member is rectilinearly movable along a second direction and includes a first outer edge having a first outer edge part remote from the first magnet by a first distance in a third direction and a second outer edge part remote from the first magnet by a second distance in the third direction. The first and second outer edge parts are disposed at different positions in the second direction. The magnetic detector is kept at a predetermined constant position relative to the first magnet. The first magnetic line passes through the magnetic detector in the first direction when the first soft ferromagnetic member is at rest.

Position detection system

A sensor intermediate part is provided with a physical quantity detection element that has a power source terminal, a ground terminal and an output terminal that outputs a desired output signal, where the physical quantity detection element is capable of adjusting properties of the output signal; a high-capacitance capacitor, which has at least a first terminal and a second terminal, and a jumper wire, one end of which is conducted to either the power source terminal or the second terminal and the other end of which is not conducted. The first terminal is conducted to the ground terminal, and the power source terminal and the second terminal are configured to be electrically connectable by the jumper wire.

Sensor intermediate part, sensor and sensor manufacturing method

A position detecting device includes a first bias magnet and a second bias magnet and a detecting element configured to detect a direction of a magnetic field generated by the first magnet and the second magnet. The first magnet and the second magnet are disposed with magnetic poles thereof having the same polarity arranged opposing each other. The direction of the magnetic field detected by the detecting element changes when an object to be detected D moves in an opposing direction between the first magnet and the second magnet.

Position detecting device and structure for using position detecting device

An axle support structure includes a drive source output shaft, an axle, a vehicle body-side member, a vehicle wheel bearing and a floating shaft. The drive source output shaft is configured to be rotated by a drive source. The axle is disposed coaxially with the drive source output shaft to rotate integrally with a vehicle wheel. The vehicle wheel bearing is coupled to the axle for rotatably supporting the axle on a vehicle body-side member. The floating shaft has a first linking part linked with the drive source output shaft with a degree of freedom in a non-rotational direction, and a second linking part linked with the axle with a degree of freedom in a non-rotational direction, such that power is transmitted from the drive source output shaft to the axle. The vehicle wheel bearing is disposed axially between the first and second linking parts.

Axle support structure

A wide-angle lens system includes a negative first meniscus lens element, a positive second lens element, a positive third biconvex lens element, and a negative fourth meniscus lens element, in this order from the object;

Wide-angle lens system

A cooling system for an electric motor of a vehicle comprises an electric motor which drives the vehicle, a reduction gear which adjusts a driving force of an output shaft of the electric motor and transmits the driving force to a drive shaft, and an in-shaft refrigerant passage provided in a shaft of the reduction gear and the output shaft of the electric motor. In the cooling system, a refrigerant which has passed through the in-shaft refrigerant passage is collected outside a motor case housing the electric motor, and is circulated.

Cooling system for electric motor of vehicle

Growing community of inventors

Tokyo, Japan

Hiroyuki Hirano