Akifumi Sakamoto

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sound reproducing apparatus and audiovisual system
- Patent number 8,391,502
- Issue date Mar 5, 2013
- Panasonic Corporation
- Masahiko Mizoguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio output system control method and audio output system
- Patent number 8,175,298
- Issue date May 8, 2012
- Panasonic Corporation
- Akihiro Mitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audiovisual system and control method thereof
- Patent number 8,131,128
- Issue date Mar 6, 2012
- Panasonic Corporation
- Koichi Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio-video output device, audio output device, audio-video reprodu...
- Patent number 7,933,485
- Issue date Apr 26, 2011
- Panasonic Corporation
- Ayako Takatsuji
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
AUDIO-VIDEO OUTPUT DEVICE, AUDIO OUTPUT DEVICE, AUDIO-VIDEO REPRODU...
- Publication number 20110052141
- Publication date Mar 3, 2011
- Ayako Takatsuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND REPRODUCING APPARATUS AND AUDIOVISUAL SYSTEM
- Publication number 20090284665
- Publication date Nov 19, 2009
- PANASONIC CORPORATION
- Masahiko Mizoguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUDIO OUTPUT SYSTEM CONTROL METHOD AND AUDIO OUTPUT SYSTEM
- Publication number 20090269036
- Publication date Oct 29, 2009
- Matsushita Electric Industrial Co., Ltd.
- Akihiro Mitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUDIOVISUAL SYSTEM AND CONTROL METHOD THEREOF
- Publication number 20090232477
- Publication date Sep 17, 2009
- Matsushita Electric Industrial Co., Ltd.
- Koichi Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUDIOVISUAL SYSTEM
- Publication number 20090046210
- Publication date Feb 19, 2009
- Matsushita Electric Industrial Co., Ltd.
- Akifumi Sakamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE