Masafumi Tanaka

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Battery with a spare battery
- Patent number 5,154,985
- Issue date Oct 13, 1992
- Japan Storage Battery Co., Ltd.
- Masafumi Tanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Storage battery provided with electrolytic solution stirring device
- Patent number 4,945,011
- Issue date Jul 31, 1990
- Japan Storage Battery Company Limited
- Masafumi Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for indicating remaining battery capacity
- Patent number 4,626,765
- Issue date Dec 2, 1986
- Japan Storage Battery Company Limited
- Masafumi Tanaka
- G01 - MEASURING TESTING