Akira Sobajima

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for expanding band of audio signal
- Patent number 6,829,360
- Issue date Dec 7, 2004
- Matsushita Electric Industrial Co., Ltd.
- Kazuya Iwata
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
D/A conversion apparatus and A/D conversion apparatus
- Patent number 5,539,403
- Issue date Jul 23, 1996
- Matsushita Electric Industrial Co, Ltd.
- Yasunori Tani
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital filter for removing DC components
- Patent number 5,210,709
- Issue date May 11, 1993
- Matsushita Electric Industrial Co., Ltd.
- Yasunori Tani
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Method of editing and reproducing compression audio data
- Publication number 20040017757
- Publication date Jan 29, 2004
- Tetsuhiko Kaneaki
- G11 - INFORMATION STORAGE