Actuator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9742256
SERIAL NO

14732166

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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To provide an actuator in which an unstable movement of a rotor is controlled. An actuator includes a coil, a bobbin around which the coil is wound, a rotor positioned inside the bobbin, a shaft to which the rotor is fixed and which is rotatably supported, a stator including a base portion positioned on one end side of the shaft, outer magnetic pole portions extending from the base portion along the shaft and positioned outside the bobbin and inner magnetic pole portions extending from the base portion along the shaft and positioned between the rotor and the inside of the bobbin, a stator including a base portion positioned on the other end side of the shaft, outer magnetic pole portions extending from the base portion along the shaft and positioned outside the bobbin and inner magnetic pole portions extending from the base portion along the shaft and positioned between the rotor and the inside of the bobbin and a cover positioned between the rotor and the stator and contacting tip portions of the inner magnetic pole portions to regulate the approach of the inner magnetic pole portions to the rotor.

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First Claim

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Patent Owner(s)

  • SEIKO PRECISION INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kudo, Kenichi Narashino, JP 25 92
Masuzawa, Koichi Narashino, JP 10 24

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