Electromechanical transducer and electroacoustic transducer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9601980
APP PUB NO 20150207392A1
SERIAL NO

14172681

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An electromechanical transducer of the invention comprises a structural unit, an armature, and two elastic units. The structural unit includes magnets, a yoke and a coil. The armature has an inner portion disposed to pass through inside the structural unit and two outer portions protruding from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in reverse directions in the inner region. The elastic units give restoring forces to the outer portions in response to displacement of the armature due to magnetic forces of the magnetic circuit. Each of the elastic units includes a pair of elastic members symmetrically arranged via the armature in a direction of the displacement. Each of the elastic members has one end engaging one of the outer portions and another end engaging one of the elastic member attaching portions.

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Patent Owner(s)

Patent OwnerAddress
RION CO LTD20-41 HIGASHIMOTOMACHI 3-CHOME KOKUBUNJI-SHI TOKYO 185-8533

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funahashi, Fumitaka Tokyo, JP 3 20
Iwakura, Takashi Tokyo, JP 20 142

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