Fujikura Limited

Kenji Furuichi

Moritaka Goto

Takayuki Imai

Moritaka Gotoh

Ryota Ikeda

Saiichiro Ohshita

Masaaki Yamamoto

Kazutoshi Fukada

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

A safety apparatus for a fuel tank in a vehicle includes a fuel tank for storing fuel, a gelling agent tank for storing a gelling agent which can gelatinize the fuel, a supply system for supplying the gelling agent in the gelling agent tank to the fuel tank, a tank-emergency detecting system for detecting an emergency in the fuel tank, and a control system for outputting a drive signal to drive the supply system. The control system outputs the drive signal under the condition that the tank-emergency detecting system outputs an emergency detection signal indicating an emergency in the fuel tank.

Safety apparatus for fuel tank

Growing community of inventors

Tokyo, Japan

Kenji Furuichi