Electromagnetic actuator and vibration generator including the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11476744
APP PUB NO 20210359583A1
SERIAL NO

17241402

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An electromagnetic actuator including a coil; a non-movable part constituted by a magnetic substance and disposed on one side relative to the coil; and a movable part including a permanent magnet on the other side relative to the coil. Applying a current to the coil alternately generates first and third driving forces to move the magnet and the movable part to one and the other sides in a first direction relative to the coil and the non-movable part. As the movable part moves from a neutral position to the one side in the first direction, a portion of the magnet positioned on the one side in the first direction relative to the first end of the first non-movable part gradually enlarges and is magnetically attracted toward the non-movable part. As the movable part moves from the neutral position to the other side in the first direction, a portion of the magnet positioned on the other side in the first direction relative to the second end of the first non-movable part gradually enlarges and is magnetically attracted toward the non-movable part.

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Patent Owner(s)

Patent OwnerAddress
HOSIDEN CORPORATION4-33 KITAKYUHOJI 1-CHOME YAO-SHI OSAKA 5810071 ?5810071

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ao, Hitoshi Yao, JP 11 72
Toyota, Naoki Yao, JP 15 58

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