Global patent index - EP 0971559 A2

EP 0971559 A2 2000-01-12 - Loudspeaker

Title (en)

Loudspeaker

Title (de)

Lautsprecher

Title (fr)

Haut-parleur

Publication

EP 0971559 A2 (EN)

Application

EP 99119696 A

Priority

  • EP 94101385 A
  • JP 3749093 A

Abstract (en)

A magnetic gap-less loudspeaker of a high performance which has a good quality of a voice coil and provides easy wiring between tinsel wires and the voice coil. In the magnetic gap-less loudspeaker, two magnets (M1, M2) magnetized in the thickness direction are disposed with the same poles being faced each other and a voice coil (1) is disposed in a magnetic field generated by repulsion magnetic fluxes near at the outer circumferential areas of the magnets, wherein conductive areas (1C) made of copper foil or the like are attached to a skirt of said voice coil (1) extending from the lower end of said voice coil to the lower end of a coil bobbin, and input tinsel wires (2) are connected to said conductive areas.

IPC 1-7 (main, further and additional classification)

H04R 9/02; H04R 9/04

IPC 8 full level (invention and additional information)

H04R 1/06 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01)

CPC (invention and additional information)

H04R 9/025 (2013.01); H04R 9/02 (2013.01); H04R 9/045 (2013.01)

Citation (search report)

  • [E] EP 0587910 A1
  • [A] DE 3730305 C1
  • [A] EP 0503860 A2
  • [A] US 3792394 A
  • [A] PATENT ABSTRACTS OF JAPAN vol. 015, no. 482 (E-1142), 6 December 1991 (1991-12-06) & JP 03 208497 A (KENWOOD CORP), 11 September 1991 (1991-09-11)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 016, no. 124 (E-1183), 30 March 1992 (1992-03-30) & JP 03 291100 A (MATSUSHITA ELECTRIC IND CO LTD), 20 December 1991 (1991-12-20)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 0610769 A2 19940817; EP 0610769 A3 19941012; EP 0610769 B1 20010516; DE 610769 T1 19950824; DE 69427200 D1 20010621; DE 69427200 T2 20020328; DE 971559 T1 20000831; EP 0971559 A2 20000112; EP 0971559 A3 20060816; JP 3011826 B2 20000221; JP H0715796 A 19950117

INPADOC legal status

2009-04-22 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20081027

2008-12-03 [RAP1] TRANSFER OF RIGHTS OF AN EP APPLICATION

- Owner name: KABUSHIKI KAISHA KENWOOD

2008-05-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20080416

2007-05-02 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): DE FR GB

2007-01-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20061116

2006-08-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

2000-08-31 [DET] DE: TRANSLATION OF PATENT CLAIMS

2000-06-30 [EL] FR: TRANSLATION OF CLAIMS FILED

2000-01-12 [AC] DIVISIONAL APPLICATION (ART. 76) OF:

- Ref Document Number: 610769

- Country of Ref Document: EP

- Format of ref. document F/P: P

2000-01-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE