Speaker

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8213671
APP PUB NO 20100002901A1
SERIAL NO

12447240

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A speaker having improved sound quality by reducing a phase difference and also having an outstanding outward appearance is provided. In a speaker comprising a vibrating element 10, a drive unit 20 for vibrating the vibrating element 10, and a frame 30 supporting the vibrating element 10 and the drive unit 20, the vibrating element 10 comprises a front face region 10A which forms a continuously curved face having a convex-shaped cross-sectional portion T1 formed in its central portion and a concave-shaped cross-sectional portion T2 formed around the portion T1, and a connecting region 10B located on the rear side of the front face region 10A and connected to the drive unit 20.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
PIONEER CORPORATION28-8 HONKOMAGOME 2-CHOME BUNKYO-KU TOKYO 113-0021
TOHOKU PIONEER CORPORATION1105 AZA NIKKOH OAZA KUNOMOTO TENDO-SHI YAMAGATA 994-8585

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hikichi, Toshihiro Yamagata, JP 27 239
Itoh, Daisuke Yamagata, JP 49 560
Kaiya, Teruaki Yamagata, JP 17 81
Matsuda, Kyoichi Yamagata, JP 8 77

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