Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2011-06-21
2011-06-21
Ni, Suhan (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
C381S400000, C381S420000
Reexamination Certificate
active
07965856
ABSTRACT:
A speaker unit of the present invention includes a frame made of a synthetic resin, inside which a voice coil is disposed in a space between a pole piece and a yoke. A diaphragm is coupled to the voice coil. A pair of lead wires extending from the voice coil are passed between the yoke and the diaphragm, and led out of the frame. The frame has a receiving surface for receiving collisions of the lead wires due to vibrations of the diaphragm, which is formed outer than an end face of the yoke opposed to the diaphragm, and closer to the diaphragm than the end face.
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Japanese Office Action dated Sep. 1, 2010, issued in corresponding Japanese Patent Application No. 2006-024216.
Japanese Office Action dated Feb. 1, 2011, issued in corresponding Japanese Patent Application No. 2006-024216. (partial English translation).
Sato Hiroshi
Tsujii Chisato
Ni Suhan
Sanyo Electric Co,. Ltd.
Westerman Hattori Daniels & Adrian LLP
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