Matsushita Electric Works, Ltd.

Funai Electric Company Ltd.

Klockner-moeller Elektrizitats-gmbh

Yasuo Ichimura

Youichi Aoyama

Kazunari Yoshimura

Kenji Kawasaki

Hidetoshi Matsushita

Akimi Shiokawa

Akira Takeuchi

Masaru Ohmuro

Eiji Iwami

Akihiro Ishibashi

A wireless communication device comprises a first communication unit, a second communication unit and a single control unit. The first communication unit wirelessly communicates by a first communication signal according to a first communication standard. The second communication unit wirelessly communicates by a second communication signal according to a second communication standard. The second communication signal has a frequency band that overlaps with that of the first communication signal. The second communication standard is different from the first communication standard. The control unit generates a first interference suppression signal for suppressing interference in the second communication signal and a second interference suppression signal for suppressing interference in the first communication signal, and suppresses the interference in the first communication signal and the interference in the second communication signal based on the first interference suppression signal and the second interference suppression signal.

Wireless communication device

The AC detection coil is a toroidal coil and includes plural radial-line conductors which are formed on a front face and a rear face of a substrate, conductive connection parts and conductive through-holes which connect electrically each end of radial-line conductors, wherein plural winding turns are consecutively formed by a connection of each radial-line conductor on the front and the rear faces, respectively, and include a forward coil and a backward coil, and each shape on the front and the rear faces of the radial-line conductors and the conductive connection parts are identical with each other. Consequently, when seen from a thickness direction of the substrate, areas of the forward coil and the backward coil are equal to each other, and an external, unneeded to be detected, magnetic field can be canceled each other by the forward coil and the backward coil, then a current detection accuracy can be improved.

Alternating current detection coil

An electromagnetic contactor is formed by disposing an inner yoke to oppose at an end to a pole-contacting member provided at an end of an armature in an electromagnet block, disposing the outer yoke to oppose at an end to the said end of the inner yoke so as to restrict the displacement of the pole-contacting member and at the other end to a plunger part of the armature perpendicularly and closely thereto, and inserting a magnetic cylinder into an axial through hole of a coil bobbin of the electromagnet block for passing therethrough the plunger part from the side of the said other end of the outer yoke, whereby any leak of magnetic flux due to coil excitation and that of a permanent magnet disposed between the both yokes can be restrained to be the minimum and a highly efficient operation of the contactor can be realized.

Electromagnetic contactor

A circuit breaker capable of breaking an associated circuit when an overcurrent higher than a rated current keeps flowing through the breaker or upon a short-circuit current. Electric power path in the breaker is partly inserted through an arm of a magnetic material and holding a movable contactor plate of make-and-break contact means, an armature means is provided as pivoted at one end to the holding arm, and a tension spring means is provided between the other end of the armature means and the movable contactor plate to provide a contact pressure. The overcurrent flowing through the path causes a magnetic force to be induced in the holding arm, whereby the armature means is rotated to change the direction in which the force of the tension spring means acts on the movable contactor plate and the latter breaks the contact means.

Circuit breaker

Growing community of inventors

Osaka, Japan

Yasuo Ichimura