HEADPHONES AND HEADPHONE DRIVER

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20140355780A1
SERIAL NO

14368815

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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[Problem] To provide headphones that can be inexpensively manufactured without requiring any high-level manufacturing technology in terms of manufacturing of a diaphragm, and is capable of reproducing an audio signal without sound deterioration in a wide range of frequency band by minimizing resonant frequencies at high frequencies. [Solution] For headphones that are equipped with two headphone driver units, ear pads that are provided on the head-phone driver units, and a headphone band for connecting the two headphone driver units together, each headphone driver unit is equipped with a headphone driver comprising a diaphragm, a voice coil which is fixed to the diaphragm, a magnet which is positioned next to the voice coil, a yoke which is provided opposite to the magnet via a voice coil, and a frame for mounting the magnet and the yoke and for fixing a periphery section of the diaphragm, wherein the diaphragm is molded by using a mixture of a paper material and a nanofiber material.

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Patent Owner(s)

Patent OwnerAddress
D&M HOLDINGS INCD&M BUILDING 2-1 NISSHIN-CHO KAWASAKI-KU KAWASAKI-SHI KANAGAWA 2108569 ?2108569

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukushima, Yoshinari Kanagawa, JP 4 30

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