Kabushiki Kaisha Tokai Rika Denki Seisakusho

Terumo Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

Katsuhiro Minami

Hitoshi Iwata

Yousuke Moriuchi

Hisashi Hirose

Fumihisa Hirose

Yasuhiro Goto

Masashi Hashimoto

Shigeru Iguchi

Isemi Igarashi

Ritsuo Suzuki

Hisahiro Ando

Atsushi Nakashima

Kenichi Kinoshita

Katsuya Kogiso

Masakata Kanbe

Takashi Suzuki

Hazime Inagaki

Masahiro Taniguchi

Hazime Inacaki

Atsusi Nakashima

A rotation detector that detects rotational position with high precision. The rotation detector includes a rotor having a shaft. Projections are located at predetermined intervals on the periphery of the rotor and extend in an axial direction. The rotation detector further includes magnets and magnetism detecting elements respectively detecting magnetism of the magnets. At least one of the magnets and the detecting elements are arranged between the projections and the shaft at predetermined intervals.

Rotation detector operable to measure magnetism direction change

This invention relates to a rotation sensor which detects the magnetic field which changes with the rotation of a rotary shaft, thereby to detect the amount of rotation of the rotary shaft. The rotation sensor of the present invention has the boundaries between magnetized regions set with high precision. The boundaries forms magnetic fields stably, whereby the detection of rotation is performed with high accuracy.

Method of making a magnetic rotation sensor

Magnetic rotation sensor for rotary shaft

A disposable pressure transducer for measuring fluid pressure, which includes a sensor assembly in a housing. The housing includes a fluid chamber and a sensor-accommodating chamber which are formed integrally with each other. The sensor assembly comprises: a sensor chip for converting pressure into an electrical signal; an insulating board on which the sensor chip is mounted and which is provided with an integrated-circuit for processisng an output signal of the sensor chip so that an external measuring device can read the signal; a cylindrical coupling lid which is bonded to the board in such a manner as to surround the sensor chip and which is fitted into a communication through-hole which provides communication between the fluid chamber and the sensor-accommodating chamber of the housing; a pressure-transmitting medium charged into the interior of the coupling lid so as to provide electrical insulation between the fluid chamber and the sensor chip; and an electrical cable connected to the board and electrically connected to the external measuring device.

Disposable pressure transducer apparatus

A disposable pressure transducer for measuring fluid pressure, which includes a sensor assembly in a housing. The housing includes a fluid chamber and a sensor-accommodating chamber which are formed integrally with each other. The sensor assembly comprises: a sensor chip for converting pressure into an electrical signal; an insulating board on which the sensor chip is mounted and which is provided with an integrated-circuit for processing an output signal of the sensor chip so that an external measuring device can read the signal; a cylindrical coupling lid which is bonded to the board in such a manner as to surround the sensor chip and which is fitted into a communication through-hole which provides communication between the fluid chamber and the sensor-accommodating chamber of the housing; a pressure-transmitting medium charged into the interior of the coupling lid so as to provide electrical insulation between the fluid chamber and the sensor chip; and an electrical cable connected to the board and electrically connected to the external measuring device.

Disposable pressure transducer and disposable pressure transducer

A light control apparatus for an automobile which does not employ an already completed variable resistor. A circuit substrate is provided with a terminal integrated with a resistor of a variable resistor. On the other hand, a casing containing the substrate is provided with a sliding terminal of a variable resistor. The casing is formed at its one end with an extended outer shell portion which together with the terminal serves as a connector.

Light control apparatus for automobile

Growing community of inventors

Aichi, Japan

Katsuhiro Minami