Fujikura Limited

Moritaka Goto

Kenji Furuichi

Takayuki Imai

Minoru Makiyo

Ryota Ikeda

Saiichiro Ohshita

Yoshitomo Uno

Kazutoshi Fukada

Masaaki Yamamoto

Takashi Susukida

Takahito Kameoka

Katsuhisa Matsuura

Toshiyuki Ogawa

The direct current vibration motor comprises a stator, a rotor rotatably attached on this stator, and a cylindrical cover for sealing the rotor. The stator has four permanent magnets arranged in a ring-like configuration and magnetized in an axial direction. The rotor is provided with an armature eccentrically fixed to a portion in the circumferential direction of the rotation shaft. The armature comprises a first coil and a second coil. Furthermore, the armature is provided with a pin formed of a magnetic body for regulating the static position so that the first coil and the second coil are fixed at a position where the first coil and the second coil are deviated from the central position of the magnetic pole of the stator. Current is supplied to the coils with the commutator and the brushes arranged with the spatial phase angle of 90&#xb0;.

Direct current vibration motor and armature structure

A tire pressure detector of an automobile, comprises a magnet having N and S poles and rotated in accordance with a pneumatic pressure in a tire, the N and S poles being rotatable in reverse, detecting means, arranged opposite to the magnet, for detecting magnetism and outputting a voltage signal changed to different magnetism level in accordance with rotation of the magnet, and determining means for comparing the voltage signal with a positive or negative threshold value and determining whether the pneumatic pressure in the tire is within a suitable range, based on a polarity of the voltage signal represented by a comparison result.

Tire pressure detecting apparatus and monitoring apparatus

A servo acceleration sensor comprises a pendulum assembly composed of a pendulum made up of a torque coil provided on one side of a metal plate, a free end section from which the pendulum is suspended, a base end section, and a pair of plate springs connecting the free end section and the base end section, a permanent magnet placed away from the metal plate, a pendulum assembly support frame that supports the pendulum assembly with the base end section being secured, a displacement sensor that senses the displacement of the pendulum and outputs it in the form of an electric signal, and a sensing circuit that supplies power to the torque coil on the basis of the electric signal and thereby generates magnetic force to return the pendulum to the original position and also senses acceleration, wherein the free end section and the base end section are made of synthetic resin and the free end section, the base end section, the plate springs, and the metal plate are integrated into an entity.

Servo acceleration sensor and a method for computing an acceleration of

An electrical connector includes a female member and a male member. The elongated female member has a flat base portion and a pair of opposed retaining arms formed integrally on the base portion and extending along opposite lateral edges thereof to form a retaining portion of a generally channel-shaped cross-section. Each of the retaining arms has a side portion extending from the base portion and a distal end portion extending from the side portion. The side portions of the respective retaining arms are inclined inwardly toward each other. One end of the male member is adapted to be inserted into the retaining portion for being resiliently held by the retaining arms and the base portion to make an electrical connection between the female and male members.

Electrical connector

Growing community of inventors

Chiba, Japan

Moritaka Goto