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Tomiaki Kurihara
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Katsuta, JP
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last 30 patents
Information
Patent Grant
AC Elevator control system
Patent number
4,441,584
Issue date
Apr 10, 1984
Hitachi, Ltd.
Nobuo Mitsui
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Method and apparatus for detecting elevator car position
Patent number
4,387,436
Issue date
Jun 7, 1983
Hitachi, Ltd.
Yasunori Katayama
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Abnormal elevator speed detector
Patent number
4,378,059
Issue date
Mar 29, 1983
Hitachi, Ltd.
Takanobu Hatakeyama
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator control system
Patent number
4,367,811
Issue date
Jan 11, 1983
Hitachi, Ltd.
Kenji Yoneda
B66 - HOISTING LIFTING HAULING