Inventor · disambiguated record
Toru Tanahashi
Also filed as: TANAHASHI TORU
11 granted patents·272 citations·filing 1982–2001
92Inventor score
Top patents by PatentIndex Score
11 records- 0187US5460244AElevator control apparatus using parallel converters and inverters with means to control circulating currentMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Oct 24, 1995·84 cites·3 claims
- 0285US5698823AElevator control systemMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Dec 16, 1997·61 cites·8 claims
- 0370US6328136B1Drive machine for elevators with drive sheave position detectorMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Dec 11, 2001·37 cites·4 claims
- 0468US4519479ASafety apparatus for elevatorMITSUBISHI ELECTRIC CORP·Filed 1984·Granted May 28, 1985·19 cites·8 claims
- 0557US6349796B1Starting drive control for elevatorMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Feb 26, 2002·10 cites·1 claims
- 0651US4602701AApparatus for controlling the speed of an elevatorMITSUBISHI ELECTRIC CORP·Filed 1984·Granted Jul 29, 1986·12 cites·7 claims
- 0748US6344089B1Drive control for elevatorMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Feb 5, 2002·5 cites·2 claims
- 0848US6064084ASemiconductor device having a reliable contact structureFUJITSU LTD·Filed 1997·Granted May 16, 2000·15 cites·4 claims
- 0948US5270498AElevator speed control apparatus with drive motor residual secondary magnetic flux controlMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Dec 14, 1993·12 cites·5 claims
- 1046US4452341ALoad change responsive elevator speed control apparatusMITSUBISHI ELECTRIC CORP·Filed 1982·Granted Jun 5, 1984·9 cites·1 claims
- 1140US5414333ASpeed control apparatus for elevators using variable voltage and variable frequency controlMITSUBISHI ELECTRIC CORP·Filed 1994·Granted May 9, 1995·8 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Toru Tanahashi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →