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Hiraku Okumura
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Hamamatsu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Talk deciding system
Patent number
8,767,951
Issue date
Jul 1, 2014
Yamaha Corporation
Satoshi Sekine
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Howling suppression apparatus and computer readable recording medium
Patent number
8,311,237
Issue date
Nov 13, 2012
Yamaha Corporation
Hirobumi Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio processing apparatus and program
Patent number
8,259,961
Issue date
Sep 4, 2012
Yamaha Corporation
Hiraku Okumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Anti-feedback device and anti-feedback method
Patent number
8,218,788
Issue date
Jul 10, 2012
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-channel echo cancel method, multi-channel sound transfer meth...
Patent number
7,925,006
Issue date
Apr 12, 2011
Yamaha Corporation
Toru Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-channel echo cancel method, multi-channel sound transfer meth...
Patent number
7,925,008
Issue date
Apr 12, 2011
Yamaha Corporation
Toru Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive howling canceller
Patent number
7,899,195
Issue date
Mar 1, 2011
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio amplification apparatus with howling canceler
Patent number
7,697,696
Issue date
Apr 13, 2010
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Howling frequency component emphasis method and apparatus
Patent number
7,574,005
Issue date
Aug 11, 2009
Yamaha Corporation
Mikio Tohyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multi-channel echo cancel method, multi-channel sound transfer meth...
Patent number
7,403,609
Issue date
Jul 22, 2008
Yamaha Corporation
Toru Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
AUDIO SIGNAL PROCESSING METHOD AND AUDIO SIGNAL PROCESSING APPARATUS
Publication number
20230199423
Publication date
Jun 22, 2023
Yamaha Corporation
Hiraku OKUMURA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LIVE DATA DISTRIBUTION METHOD, LIVE DATA DISTRIBUTION SYSTEM, AND L...
Publication number
20230007421
Publication date
Jan 5, 2023
Yamaha Corporation
Futoshi SHIRAKIHARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIVE DATA DISTRIBUTION METHOD, LIVE DATA DISTRIBUTION SYSTEM, AND L...
Publication number
20230005464
Publication date
Jan 5, 2023
Yamaha Corporation
Futoshi SHIRAKIHARA
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Anti-Feedback Device and Anti-Feedback Method
Publication number
20100166213
Publication date
Jul 1, 2010
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Howling Suppression Apparatus and Computer Readable Recording Medium
Publication number
20090196433
Publication date
Aug 6, 2009
Yamaha Corporation
Hirobumi Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Audio processing apparatus and program
Publication number
20090122997
Publication date
May 14, 2009
Yamaha Corporation
Hiraku Okumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Talk deciding system
Publication number
20080056483
Publication date
Mar 6, 2008
Yamaha Corporation
Satoshi Sekine
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multi-channel echo cancel method, multi-channel sound transfer meth...
Publication number
20070258578
Publication date
Nov 8, 2007
Yamaha Corporation
Toru Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multi-channel echo cancel method, multi-channel sound transfer meth...
Publication number
20070258579
Publication date
Nov 8, 2007
Yamaha Corporation
Toru Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Howling canceler apparatus and sound amplification system
Publication number
20060210091
Publication date
Sep 21, 2006
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Audio amplification apparatus with howling canceler
Publication number
20060172272
Publication date
Aug 3, 2006
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Microphone and sound amplification system
Publication number
20060153400
Publication date
Jul 13, 2006
Yamaha Corporation
Hiroaki Fujita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Adaptive hauling canceller
Publication number
20060008076
Publication date
Jan 12, 2006
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Howling frequency component emphasis method and apparatus
Publication number
20050220313
Publication date
Oct 6, 2005
Yamaha Corporation
Mikio Tohyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method of discriminating between double-talk state and single-talk...
Publication number
20050220292
Publication date
Oct 6, 2005
Yamaha Corporation
Hiraku Okumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multi-channel echo cancel method, multi-channel sound transfer meth...
Publication number
20040174991
Publication date
Sep 9, 2004
Yamaha Corporation
Toru Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE