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Current content: 155 263 406 patent documents

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215 613 new documents added

1 342 057 documents amended

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EP 2026600 A1 20090218 - Loudspeaker

Title (en)

Loudspeaker

Title (de)

Lautsprecher

Title (fr)

Haut-parleur

Publication

EP 2026600 A1 20090218 (EN)

Application

EP 07113924 A 20070807

Priority

EP 07113924 A 20070807

Abstract (en)

A loudspeaker containing an improved voice drive structure including a convex diaphragm adhered with a voice coil before being mounted to a modified damper integrated with a surround to increase directivity of output of sound effects and effective expand sound field of the loudspeaker.

IPC 8 full level

H04R 7/12 (2006.01); H04R 7/16 (2006.01); H04R 9/06 (2006.01)

CPC (source: EP)

H04R 7/127 (2013.01); H04R 7/16 (2013.01); H04R 9/06 (2013.01)

Citation (search report)

[XY] US 5701358 A 19971223 - LARSEN JOHN T [US], et al
[Y] US 3935400 A 19760127 - KOGA SIGEYUKI
[Y] JP H10285692 A 19981023 - SHARP KK
[A] US 2003156731 A1 20030821 - SATO EIJI [JP]

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 2026600 A1 20090218

DOCDB simple family (application)

EP 07113924 A 20070807