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Kazuhiko Sasaki
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Katsuta, JP
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last 30 patents
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Patent Grant
Apparatus for controlling AC elevators
Patent number
4,779,709
Issue date
Oct 25, 1988
Hitachi, Ltd.
Nobuo Mitsui
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Patent Grant
Current-type converter protecting apparatus
Patent number
4,757,436
Issue date
Jul 12, 1988
Hitachi, Ltd.
Shigeta Ueda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER