Speaker structure

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6678384
APP PUB NO 20020021818A1
SERIAL NO

09876859

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A speaker structure having a simple configuration while maintaining good sound quality is disclosed. The speaker structure comprises a first speaker (20) having a first vibration plate (21), a first frame (22) for fixing the perimeter of the first vibration plate and a first magnetic circuit (24) for converting a signal into the vibration of the first vibration plate, a second speaker (30) having a second vibration plate (31), a second frame (32) for fixing the perimeter of the second vibration plate and a second magnetic circuit (34) for converting a signal into the vibration of the second vibration plate, and a fixing unit (50) for fixing the first magnetic circuit and the second magnetic circuit at their backs.

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Patent Owner(s)

  • FUJITSU TEN LIMITED;TIME DOMAIN CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kowaki, Hiroshi Kobe, JP 16 142
Yoshii, Hiroyuki Ikoma, JP 18 173

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