Hitoshi Matsuzawa

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Noise suppressing apparatus
- Patent number 7,203,326
- Issue date Apr 10, 2007
- Fujitsu Limited
- Hitoshi Matsuzawa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Echo canceler
- Patent number 6,704,415
- Issue date Mar 9, 2004
- Fujitsu Limited
- Hiroshi Katayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Active noise control method and receiver device
- Patent number 6,522,753
- Issue date Feb 18, 2003
- Fujitsu Limited
- Hitoshi Matsuzawa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Speech encoding and decoding method and speech encoding and decodin...
- Patent number 6,078,881
- Issue date Jun 20, 2000
- Fujitsu Limited
- Yasuji Ota
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Speech processing coder, decoder and command recognizer
- Patent number 5,909,662
- Issue date Jun 1, 1999
- Fujitsu Limited
- Yasushi Yamazaki
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Noise suppressing apparatus
- Publication number 20020150265
- Publication date Oct 17, 2002
- Hitoshi Matsuzawa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS