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Yukihiro Yamaguchi
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Katsuta, JP
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last 30 patents
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Patent Grant
Escalator installation method
Patent number
6,247,574
Issue date
Jun 19, 2001
Hitachi, Ltd.
Yukihiro Yamaguchi
B66 - HOISTING LIFTING HAULING
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Patent Grant
Drive unit of conveyor
Patent number
5,348,131
Issue date
Sep 20, 1994
Hitachi, Ltd.
Yukihiro Yamaguchi
B66 - HOISTING LIFTING HAULING