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Masaaki Yokokawa
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Fukushima, JP
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last 30 patents
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Patent Grant
Protective apparatus for secondary battery
Patent number
5,252,411
Issue date
Oct 12, 1993
Sony Corporation
Masaaki Yokokawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Patent Grant
Rechargeable organic electrolyte cell
Patent number
4,828,834
Issue date
May 9, 1989
Sony Corporation
Toru Nagaura
C01 - INORGANIC CHEMISTRY