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Inventor: Takahashi; Shunichi
Address: Saitama-ken, JP
No. of patents: 3
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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