Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2005-08-17
2008-09-16
Tran, Sinh (Department: 2615)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
C381S419000
Reexamination Certificate
active
07426283
ABSTRACT:
An outer-radial magnetic-flux applying unit of a speaker device includes an annular main unit and at least one piece of annular sub-unit stacked atop a free end of the main unit. A heat-dissipating member composed of a material having a good thermal conductivity encompasses the outer-radial magnetic-flux applying unit including the sub-unit and is thermally bonded with the outer-radial magnetic-flux applying unit.
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Kaiya Teruaki
Sato Seiya
Foley & Lardner LLP
Pioneer Corporation
Robinson Ryan C
Tohoku Pioneer Corporation
Tran Sinh
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