| TAMAGAWA SEIKI CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110285386 | ANGLE DETECTION SYSTEM AND METHOD OF MANUFACTURING THE SAME - An angle detection system of the present invention includes: a stator | 11-24-2011 |
| 20110133965 | ANGLE DETECTION DEVICE AND METHOD OF MANUFACTURING THE SAME - An angle detection device of the present invention includes: a stator which includes a plurality of salient pole portions which are formed on a flat sheet made of a magnetic material and are raised by bending, each salient pole portion constituting a winding magnetic core on which a winding member for excitation and a winding member for detection are mounted; and a rotor which is made of a magnetic material and is provided rotatably relative to the stator such that gap permeance between the rotor and each salient pole portion is changed due to the rotation of the rotor about a rotational axis of the rotor. According to the angle detection device of the present invention, it is possible to provide the angle detection device which can largely reduce the number of parts and can realize the reduction of cost and the enhancement of reliability. | 06-09-2011 |
| 20100223796 | APPARATUS FOR AZIMUTH MEASUREMENTS USING GYRO SENSORS - An apparatus for azimuth measurements is provided. The apparatus comprises a housing and a plurality of gyro sensors aligned in the housing. Each of the plurality of gyro sensors has an input axis for angular velocity measurements. There is provided a drive unit for rotating each of the plurality of gyro sensors about a rotation axis. Each of the plurality of gyro sensors changes orientation of the input axis with the drive unit. | 09-09-2010 |
| 20100077623 | APARATUS FOR AZIMUTH MEASUREMENTS USING GYRO SENSORS - An apparatus for azimuth measurements comprises an elongated housing, a plurality of gyro sensors, each of the gyro sensors having an input axis for angular velocity measurements, spherical sensor holders arranged along the longitudinal direction of the housing, at least one motor for driving the sensor holders, a transmission mechanism for transmitting a rotation force from the motor to each of the sensor holders and a controller for controlling a rotation of the motor. Each of the sensor holders has one of the gyro sensors and is rotatable about a rotation axis so as to change the orientation of the input axis of the gyro sensor. | 04-01-2010 |
