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Elevator control system having an immersion proof structure |
Tadashi Ariki, Sanho Gon, Kazuo Ookawa, Hiroki Shinozuka, Tomofumi Hagiya |
2002-04-30 |
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Braking device for elevator winding machine and elevator using the braking device |
Masakatsu Tanaka, Masanobu Itoh, Toshihiko Nara, Tastuhiko Takahashi, Katutaro Masuda +1 more |
1991-11-26 |
| 5025896 |
Elevator control apparatus |
Hideaki Takahashi, Yoshio Sakai, Masao Nakazato, Masakatsu Tanaka, Tatsuhiko Takahashi +3 more |
1991-06-25 |
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Elevator apparatus |
Hideaki Takahashi, Yoshio Sakai, Tsutomu Sano, Masao Nakazato, Masakatsu Tanaka +3 more |
1991-01-08 |
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Speed control apparatus for elevators |
Hideaki Takahashi |
1989-09-26 |
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Elevator starting compensation method and apparatus |
Hideaki Takahashi, Yoshio Sakai, Kenji Yoneda |
1989-08-01 |
| 4773508 |
Elevator control apparatus |
Toshisuke Mine, Hideaki Takahashi, Katsu Komuro, Hiromi Inaba |
1988-09-27 |