Okumura; Hiraku

Patent Applications and Registrations

Patent applications and USPTO patent grants for Okumura; Hiraku.The latest application filed is for "anti-feedback device and anti-feedback method".

Company Profile

0.11.13

Okumura; Hiraku - Hamamatsu N/A JP
Okumura; Hiraku - Shizuoka JP
OKUMURA; Hiraku - Hamamatsu-shi JP
Okumura; Hiraku - Shizuoka-ken JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Talk deciding system Grant 8,767,951 - Sekine , et al. July 1, 2	2014-07-01
Howling suppression apparatus and computer readable recording medium Grant 8,311,237 - Tanaka , et al. November 13, 2	2012-11-13
Audio processing apparatus and program Grant 8,259,961 - Okumura September 4, 2	2012-09-04
Anti-feedback device and anti-feedback method Grant 8,218,788 - Okumura , et al. July 10, 2	2012-07-10
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Grant 7,925,008 - Hirai , et al. April 12, 2	2011-04-12
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Grant 7,925,006 - Hirai , et al. April 12, 2	2011-04-12
Adaptive howling canceller Grant 7,899,195 - Okumura , et al. March 1, 2	2011-03-01
Anti-Feedback Device and Anti-Feedback Method App 20100166213 - OKUMURA; Hiraku ; et al.	2010-07-01
Audio amplification apparatus with howling canceler Grant 7,697,696 - Okumura April 13, 2	2010-04-13
Howling frequency component emphasis method and apparatus Grant 7,574,005 - Tohyama , et al. August 11, 2	2009-08-11
Howling Suppression Apparatus and Computer Readable Recording Medium App 20090196433 - Tanaka; Hirobumi ; et al.	2009-08-06
Audio processing apparatus and program App 20090122997 - Okumura; Hiraku	2009-05-14
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Grant 7,403,609 - Hirai , et al. July 22, 2	2008-07-22
Talk deciding system App 20080056483 - Sekine; Satoshi ; et al.	2008-03-06
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus App 20070258578 - Hirai; Toru ; et al.	2007-11-08
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus App 20070258579 - Hirai; Toru ; et al.	2007-11-08
Howling canceler apparatus and sound amplification system App 20060210091 - Okumura; Hiraku	2006-09-21
Audio amplification apparatus with howling canceler App 20060172272 - Okumura; Hiraku	2006-08-03
Microphone and sound amplification system App 20060153400 - Fujita; Hiroaki ; et al.	2006-07-13
Adaptive hauling canceller App 20060008076 - Okumura; Hiraku ; et al.	2006-01-12
Method of discriminating between double-talk state and single-talk state App 20050220292 - Okumura, Hiraku ; et al.	2005-10-06
Howling frequency component emphasis method and apparatus App 20050220313 - Tohyama, Mikio ; et al.	2005-10-06
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus App 20040174991 - Hirai, Toru ; et al.	2004-09-09

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