H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/70
H04R 9/06 (2006.01) H04R 9/02 (2006.01) H04R 11/02 (2006.01)
Patent
CA 2038185
MAGNETIC CIRCUIT FOR A SPEAKER Abstract of the Disclosure A magnetic circuit for a speaker having a yoke has a pole formed on the yoke base, an annular magnet mounted on the yoke base, and a top plate mounted on the magnet. A periphery of the magnet has an outwardly curved sectional shape. Peripheries of the yoke base and the top plate have outwardly or inwardly curved sectional shapes, respectively.
Mitobe Kunio
Murayama Fumio
Nakazono Jiro
Sato Masatosi
Watanabe Shuichi
Pioneer Electronic Corporation
Ridout & Maybee Llp
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