Yoji Hamano

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Music player
- Patent number 7,285,711
- Issue date Oct 23, 2007
- Oki Electric Industry, Co., Ltd.
- Toshiharu Okada
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Music player
- Publication number 20060130638
- Publication date Jun 22, 2006
- Oki Electric Industry Co., Ltd.
- Toshiharu Okada
- G10 - MUSICAL INSTRUMENTS ACOUSTICS