Omron Corporation

Kurimoto, Ltd.

Daifuku Co., Ltd.

Minolta Camera Kabushiki Kaisha

Fuji Electric Wire Industries Co., Ltd.

The Research Institute for Electric and Magnetic Materials

Ntt Docomo, Inc.

Ntt Mobile Communications Network, Inc.

Masaaki Yamamoto

Toshifumi Sumino

Masaharu Nakatsuchi

Yoshiaki Hiramatsu

Tatsuro Kato

Kazuya Murakami

Kazuhiro Yamada

Hiroshi Kawabata

Satoshi Washio

Takeshi Natsuno

Hiroshi Yamada

Yutaka Sumi

Shinichi Furusho

Kyoko Inoue

Motoki Tokuda

Takeaki Miyamoto

Harumichi Kitaguchi

Ichinori Sakai

Dai Kamiya

Takeshi Yano

Hiroshi Goto

Sanji Inagaki

Tatsuaki Wakabayashi

Shinya Matsuo

Tatsuro Oi

Eriko Oseki

Shoichi Tsuge

Yasushi Kaneta

Kouji Chiba

Mitsuhiro Kawai

Tetsuya Yamada

Jinsun Liao

Akihiko Koshi

Nobukiyo Kobayashi

Kiwamu Shirakawa

Hiroshi Kanto

Yuko Watanabe

Yasuhide Kanatsu

Yuichi Kariya

Makoto Nunoya

Tatsuro Ooi

Eriko Ooseki

Kazuhito Inagaki

Yoshimasa Hirai

Hiroaki Maedono

Chizuko Maedono, Legal Representative

Katsuhisa Toshima

Hirofumi Imatani

Mamiko Naka

Daisuke Narimatsu

Kazuki Tsujikawa

Syohei Matsuba

Takashi Higashiura

Keisuke Yamori

Norihito Sekizaki

An adjustment system causes a target power supply device to execute first processing and second processing while causing at least one adjacent power supply device to perform a regular power supply operation. The first processing is processing for measuring a first voltage value while a power supply circuit of the target power supply device does not output an alternating current. The second processing is processing for measuring a second voltage value while the power supply circuit of the target power supply device outputs an alternating current. The adjustment system obtains a feeder circuit reactance of a feeder circuit based on the difference between the first voltage value and the second value, and executes adjustment processing for adjusting circuit characteristics with use of an adjustment unit in accordance with the obtained feeder circuit reactance in such a manner that the feeder circuit impedance is a predetermined impedance.

Non-contact power supply facility, impedance adjustment method for non-contact power supply facility, and impedance adjustment program for non-contact power supply facility

A magnesium alloy which has excellent tensile strength and elongation at a room temperature, as well as an excellent heat resistance represented by creep resistance is obtained. The magnesium alloy is produced which comprises 3.0% by mass or more and less than 6.0% by mass of Al, 0.10% by mass or more and 0.60% by mass or less of Mn, more than 0.50% by mass and less than 2.0% by mass of Ca, and more than 0.10% by mass and less than 0.40% by mass of Si, and has a balance composed of Mg and unavoidable impurities.

Heat-resistant magnesium alloy for casting

An adapter is placed between a power outlet and a power plug to electrically connect them. The adapter includes a pair of blade slots and a pair of terminal slots arranged in correspondence with a pair of blades and a pair of earth terminals protruding from a power plug. The pair of blade slots is arranged on a first reference line passing through a center of an adapter body in a radial direction, and is arranged laterally symmetrical with respect to a second reference line. The pair of terminal slots is arranged on the second reference line, and is arranged vertically symmetrical with respect to the first reference line.

Adapter for a power outlet and a power plug

A brass alloy is provided having good mechanical properties and castability, and excellent general-purpose properties, while its dezincification corrosion is inhibited. The brass alloy contains 0.4% by mass or more and 3.2% by mass or less of Al; 0.001% by mass or more and 0.3% by mass or less of P; 0.1% by mass or more and 4.5% by mass or less of Bi; 0% by mass or more and 5.5% by mass or less of Ni; 0% by mass or more and 0.5% by mass or less of Mn, Fe, Pb, Sn, Si, Mg, and Cd, respectively; and Zn; the balance being Cu and a trace element or elements. The zinc equivalent (Zneq) calculated from the content of Zn and other elements, and the content of Al (% by mass) satisfy the following Equations (1) and (2):Zneq+1.7&#xd7;Al&#x2265;35.0&#x2003;&#x2003;(1)Zneq&#x2212;0.45&#xd7;Al&#x2264;37.0&#x2003;&#x2003;(2).

Brass alloy for tap water supply member

A copper alloy for use in water works has not only a reduced lead content and the lowest possible Ni content, but also a reduced Bi content, and still exhibits suitable properties. The copper alloy includes: less than 0.5% by mass of Ni; 0.2% by mass or more and 0.9% by mass or less of Bi; 12.0% by mass or more and 20.0% by mass or less of Zn; 1.5% by mass or more and 4.5% by mass or less of Sn; and 0.005% by mass or more and 0.1% by mass or less of P; wherein the total content of Zn and Sn is 21.5% by mass or less, and the balance is a trace element(s) and Cu.

Copper alloy for use in a member for use in water works

An electromagnet device has a spool having a guard portion at at least one end thereof, a coil wound around a body portion of the spool, and a coil terminal press-fitted in the guard portion. A lead wire of the coil is tied up to a tying-up portion of the coil terminal projected from the guard portion. The tying-up portion is folded toward the guard portion of the spool after the lead wire of the coil is tied up to the tying-up portion of the coil terminal extending in a direction receding from the spool.

Electromagnet device and electromagnetic relay using the same

At the start of power supply from a power supply device to an induction line, the oscillation frequency of an inverter of the power supply device is set at a predetermined frequency shifted from the resonance frequency of a resonant circuit. After a predetermined time, the frequency is changed from the predetermined frequency to the resonance frequency. Thus, at the start of power supply, only small power is obtained by the resonant circuits in all transport carriages from the induction line in a full-load condition. Thus, total power is suppressed within power that can be supplied by the power supply device, avoiding an overloaded condition of the power supply device.

Contactless power feed equipment

A PWM module is provided to output a driving pulse to a switching device in synchronization with a synchronizing pulse having a frequency twice the frequency of the high-frequency current of a primary-side induction line. The PWM module performs output voltage feedback control such that the output voltage of an output capacitor is set at a reference voltage. The module outputs, to the switching device, the driving pulse having a half width of the pulse width of a driving pulse that can be outputted, at the start of power supply to the primary-side induction line. Moreover, the module forcibly performs the output voltage feedback control if an output voltage of the output capacitor does not increase to the reference voltage within a reference time.

Secondary-side power receiving circuit for contactless power feed equipment

The present invention provides an electromagnet device including a horizontal portion of a yoke arranged near one end portion of an iron core, a movable iron piece which pivotably supported on a leading end edge portion of a vertical portion of the yoke which serves as a fulcrum, an end portion of the movable iron piece adapted to be attracted to a magnetic pole portion by a main magnetic circuit, the magnetic pole portion is arranged in the other end portion of the iron core. The main magnetic circuit is formed by applying a voltage to a coil wound around a periphery of the iron core and an auxiliary magnetic circuit formed in parallel with the main magnetic circuit, the auxiliary circuit including a permanent magnet is arranged near the one end portion of the iron core and a magnetic resistance portion, in which a magnetic flux of the permanent magnet is magnetically saturated.

Electromagnet device

The present invention provides an electromagnet device including: an electromagnet block having a spool around which a coil is wound and an iron core inserted in a central hole of the spool; a yoke connected to an end portion of the iron core via a permanent magnet; a movable iron piece pivotably supported on a pivoting shaft center located at an end face edge portion of the yoke, the movable iron piece is adapted to pivot on a basis of magnetization and demagnetization of the electromagnet block, and a protrusion having a linear edge portion which extends in parallel to the pivoting shaft center and the protrusion protrudes from at least either the movable iron piece or the iron core, the protrusion protrudes in a facing direction in which the movable iron piece and the iron core face each other.

The present invention provides an electromagnet device which can obtain a desirable attraction force (retention force) between an iron core and a movable iron piece, a method of assembling the electromagnet device and an electromagnetic relay using the electromagnet device, the electromagnet device including an electromagnet block having the iron core being wound by a coil and an auxiliary yoke fixed to one end portion of the iron core, a yoke connected to the one end portion of the iron core via a permanent magnet, the movable iron piece pivotably supported on a pivoting shaft center (serving as a fulcrum) located in an end face edge portion of the yoke so that the movable iron piece pivots on a basis of magnetization and demagnetization of the electromagnet block, where the permanent magnet is located on an extension line of an axial center of the iron core and is interposed between the auxiliary yoke and the yoke.

Electromagnet device, method of assembling the same, and electromagnetic relay using the same

A magnetic detection element includes a magnetoresistance effect portion composed of a magnetoresistance effect material and a pair of yoke portions. The pair of yoke portions is composed of a soft magnetic material and are respectively arranged so as to be electrically connected to both sides of the magnetoresistance effect portion. The pair of yoke portions guides magnetic flux into the magnetoresistance effect portion. The magnetic detection element also includes a bypass portion, which is composed of a soft magnetic material and is saturated with magnetic flux at lower magnetic field intensity than the yoke portions, and which guides a part of the magnetic flux generated in the yoke portions so as to divert the magnetic flux from the magnetoresistance effect portion.

Signal transmission device

An electrical plug-provided cord has a cord including lead wires and an outer cover for covering the lead wires, an electrical plug including plug blades connected to the lead wires at a tip of the cord and a plug outer housing for covering a part of the cord and a part of the plug blades from base parts of the plug blades to the outer cover at a tip part of the cord, and a coupling member which surrounds the tip part of the cord in close contact and is coupled to the plug outer housing by thermal welding. The plug outer housing is formed of a synthetic resin. At least an interface of the coupling member with the plug outer housing is formed of a heat-weldable material which is thermally weldable with the plug outer housing.

Electrical plug-provided cord

In a magnetic coupler device comprising: a magnetic field generation circuit generating a magnetic field according to an input current; and a detection bridge circuit including a pair of magnetoresistance effect devices, a resistance value of each of the magnetoresistance effect devices changing by applying a magnetic field generated by said magnetic field generation circuit to each of the magnetoresistance effect devices, and having two outputs between which a voltage difference is generated according to an intensity of the magnetic field generated by said magnetic field generation circuit, by forming a geometric shape of each of said magnetic field generation circuit and said detection bridge circuit in line symmetric or point symmetric, a high S/N ratio is obtained even with high frequency.

Magnetic coupler device and magnetically coupled isolator

A member for water works is proposed in which the content of lead is limited to a very small values while maintaining its mechanical properties, castability, machinability, pressure resistance, etc. to levels equivalent to those of conventional copper alloys containing lead. A copper alloy is produced which contains not less than 2.0% by weight and not more than 5.9% by weight of tin, not less than 1.5% by weight and not more than 5.0% by weight of nickel, not less than 5.0% by weight and not more than 12.1% by weight of zinc, not less than 0.4% by weight and not more than 3.3% by weight of bismuth, and not less than 0.009% by weight and not more than 0.15% by weight of phosphorus, the balance being copper and impurities.

Copper alloy water supply member

Growing community of inventors

Osaka, Japan

Masaaki Yamamoto