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Keiichiro Nakai
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Tokyo, JP
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last 30 patents
Information
Patent Grant
Support structure for a linear motor drive type of elevator
Patent number
5,105,109
Issue date
Apr 14, 1992
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Rope weight compensating device for a linear motor driven elevator
Patent number
5,074,384
Issue date
Dec 24, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Encoder installing structure
Patent number
5,052,522
Issue date
Oct 1, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Column vibration system for a linear motor driven elevator
Patent number
5,036,955
Issue date
Aug 6, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Braking system for a linear motor driven elevator
Patent number
5,033,587
Issue date
Jul 23, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Apparatus for maintaining an air gap in a toroidal linear motor
Patent number
5,033,588
Issue date
Jul 23, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Apparatus for maintaining an air gap in a toroidal type linear motor
Patent number
5,014,826
Issue date
May 14, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Sheave array arrangement for elevator
Patent number
5,009,288
Issue date
Apr 23, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Air gap apparatus for a linear motor
Patent number
5,005,672
Issue date
Apr 9, 1991
Otis Elevator Company
Keiichiro Nakai
B66 - HOISTING LIFTING HAULING