Toshirou Araki

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker unit, method for fabricating the same, and speaker apparatus
- Patent number 7,539,318
- Issue date May 26, 2009
- Pioneer Corporation
- Tetsuya Onuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Speaker unit, method for fabricating the same, and speaker apparatus
- Publication number 20060018502
- Publication date Jan 26, 2006
- Pioneer Corporation
- Tetsuya Onuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE