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Extract from the Register of European Patents

EP About this file: EP1681899

EP1681899 - Audio amplification apparatus with howling canceler [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  20.03.2009
Database last updated on 03.09.2024
Most recent event   Tooltip20.03.2009No opposition filed within time limitpublished on 22.04.2009  [2009/17]
Applicant(s)For all designated states
YAMAHA CORPORATION
10-1 Nakazawa-cho Naka-ku Hamamatsu-shi
Shizuoka-ken / JP
[2007/27]
Former [2006/29]For all designated states
YAMAHA CORPORATION
10-1, Nakazawa-cho Hamamatsu-shi
Shizuoka-ken 430-8650 / JP
Inventor(s)01 / Okumura, Hiraku
Yamaha Corporation 10-1, Nakazawa-cho, Naka-ku
Hamamatsu-shi, Shizuoka-ken / JP
 [2007/50]
Former [2006/29]01 / Okumura, Hiraku
Yamaha Corporation 10-1, Nakazawa-cho
430-8650, Hamamatsu-shi / JP
Representative(s)Kehl, Günther, et al
Kehl, Ascherl, Liebhoff & Ettmayr
Patentanwälte
Friedrich-Herschel-Strasse 9
81679 München / DE
[N/P]
Former [2006/29]Kehl, Günther, et al
Kehl & Ettmayr Patentanwälte, Friedrich-Herschel-Strasse 9
81679 München / DE
Application number, filing date05113098.730.12.2005
[2006/29]
Priority number, dateJP2005000498312.01.2005         Original published format: JP 2005004983
[2006/29]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP1681899
Date:19.07.2006
Language:EN
[2006/29]
Type: B1 Patent specification 
No.:EP1681899
Date:14.05.2008
Language:EN
[2008/20]
Search report(s)(Supplementary) European search report - dispatched on:EP16.05.2006
ClassificationIPC:H04R3/02
[2006/29]
CPC:
H04R3/02 (EP,KR,US); G11B31/02 (KR); H04M9/082 (KR);
G10K2210/506 (KR); G10L2021/02082 (KR)
Designated contracting statesDE,   GB [2007/13]
Former [2006/29]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  NL,  PL,  PT,  RO,  SE,  SI,  SK,  TR 
TitleGerman:Audioverstärker mit Rückkopplungsunterdrückung[2006/29]
English:Audio amplification apparatus with howling canceler[2006/29]
French:Amplificateur audio avec suppresseur de l'effet Larsen[2006/29]
Examination procedure03.01.2006Examination requested  [2006/29]
22.11.2006Amendment by applicant (claims and/or description)
14.11.2007Communication of intention to grant the patent
18.03.2008Fee for grant paid
18.03.2008Fee for publishing/printing paid
Opposition(s)17.02.2009No opposition filed within time limit [2009/17]
Fees paidRenewal fee
12.12.2007Renewal fee patent year 03
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Documents cited:Search[A]EP0884886  (OKI ELECTRIC IND CO LTD [JP]) [A] 2 * page 2, line 35 - page 3, line 10 ** page 3, line 24 - page 4, line 5; figure 1 *;
 [X]EP0969692  (ASAHI CHEMICAL IND [JP]) [X] 1-3,5-7,9 * paragraph [0008] - paragraph [0013]; figures 1-3,5 * * paragraphs [0025] - [0028]; figures 4-7 * * paragraphs [0037] - [0043] * * paragraph [0085] - paragraph [0103]; figures 14-18 *;
 [A]US2002041678  (BASBURG-ERTEM FILIZ [US], et al) [A] 2 * paragraph [0038] * * paragraph [0046] - paragraph [0047] * * paragraph [0064] - paragraph [0065] *;
 [A]US2002064291  (KATES JAMES MITCHELL [US], et al) [A] 1-9 * paragraph [0020] - paragraph [0025] * * paragraph [0037] - paragraph [0067]; figures 1-11 *;
 [A]EP1278396  (MATSUSHITA ELECTRIC IND CO LTD [JP]) [A] 3-5,8,9 * paragraph [0338] - paragraph [0344]; figure 17 * * abstract * * paragraph [0255] - paragraph [0301]; figures 11,12 *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.