Inventor · disambiguated record
Keiichiro Nakai
Also filed as: NAKAI KEIICHIRO
9 granted patents·143 citations·filing 1989–1990
89Inventor score
Files withOTIS ELEVATOR CO9
Top patents by PatentIndex Score
9 records- 0172US5033587ABraking system for a linear motor driven elevatorOTIS ELEVATOR CO·Filed 1990·Granted Jul 23, 1991·28 cites·8 claims
- 0269US5005672AAir gap apparatus for a linear motorOTIS ELEVATOR CO·Filed 1990·Granted Apr 9, 1991·25 cites·32 claims
- 0366US5033588AApparatus for maintaining an air gap in a toroidal linear motorOTIS ELEVATOR CO·Filed 1990·Granted Jul 23, 1991·23 cites·4 claims
- 0456US5036955AColumn vibration system for a linear motor driven elevatorOTIS ELEVATOR CO·Filed 1990·Granted Aug 6, 1991·17 cites·10 claims
- 0553US5074384ARope weight compensating device for a linear motor driven elevatorOTIS ELEVATOR CO·Filed 1990·Granted Dec 24, 1991·16 cites·3 claims
- 0653US5009288ASheave array arrangement for elevatorOTIS ELEVATOR CO·Filed 1989·Granted Apr 23, 1991·13 cites·3 claims
- 0741US5105109ASupport structure for a linear motor drive type of elevatorOTIS ELEVATOR CO·Filed 1989·Granted Apr 14, 1992·8 cites·3 claims
- 0837US5052522AEncoder installing structureOTIS ELEVATOR CO·Filed 1989·Granted Oct 1, 1991·6 cites·3 claims
- 0936US5014826AApparatus for maintaining an air gap in a toroidal type linear motorOTIS ELEVATOR CO·Filed 1990·Granted May 14, 1991·7 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →