Shigeki Murayama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Battery pack
- Patent number 5,796,238
- Issue date Aug 18, 1998
- Sony Corporation
- Masaru Hiratsuka
- G01 - MEASURING TESTING
Information Patent Grant
Battery pack including internal capacity monitor for monitoring gro...
- Patent number 5,680,027
- Issue date Oct 21, 1997
- Sony Corporation
- Masaru Hiratsuka
- G01 - MEASURING TESTING