Electromagnetic acoustic transducer for generating and...

Details Electromagnetic acoustic transducer for generating and... Electromagnetic acoustic transducer for generating and...

2005-11-28

2010-06-22

Nguyen, Tuan D (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S400000, C381S412000

Reexamination Certificate

active

07742616

ABSTRACT:
Provided is an electromagnetic acoustic transducer including a main body formed of a non-metal material and having a hollow portion, a magnetic field generation portion generating two magnetic fields parallel to a lengthwise direction of the rod member and in opposite directions to each other, at both sides of the rod member that is inserted in the hollow portion of the main body, and a coil wound around an outer circumferential surface of the main body.

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JP Office Action and English translation for JP 2005-375932 dated Nov. 29, 2007, 8 pages.

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