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Takahashi; Shunichi
Saitama-ken, JP
No. of patents:

Patent Number Title Of Patent Date Issued
6792122 Acoustic device September 14, 2004
An audio device has an electroacoustic transducer mounted on a clamp for converting an electric signal into an acoustic signal, an electromechanical vibration transducer for converting the electric signal into a mechanical vibration, and an abutting member having the electromechanica
6144753 Damper for a speaker apparatus November 7, 2000
A speaker apparatus has a damper for supporting vibrating elements including a vibrating diaphragm. The damper is formed by injecting a predetermined amount of a resin material into a metal mold of an injection molding equipment.
5848173 Surroundless loudspeaker December 8, 1998
A cylindrical frame is mounted in a cabinet and a magnetic circuit is provided at an end of the frame. A diaphragm having a peripheral free edge is connected to a coil bobbin and a cylindrical ring is secured to the free end edge and disposed in a cylindrical supporting portion of the

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