Inventor · disambiguated record
Toshio Tsubota
Also filed as: TSUBOTA TOSHIO
9 granted patents·2 pending applications·160 citations·filing 1986–2004
89Inventor score
Files withMITSUBISHI HEAVY IND LTD3FUJI ELECTRIC CO LTD2TORAY INDUSTRIES2FUJI ELEC DEVICE TECH CO LTD1FUJI ELECTRIC IMAGING DEVICE1
Top patents by PatentIndex Score
11 records- 0181US4942091APolyphenylene sulfone fibers and a method for production thereofTORAY INDUSTRIES·Filed 1988·Granted Jul 17, 1990·24 cites·6 claims
- 0267US6008619AMotor drive apparatus and motor driving method capable of simply reducing rotating speed in PWM modeNEC CORP·Filed 1998·Granted Dec 28, 1999·28 cites·19 claims
- 0366US4954043ABalance mechanism of an industrial robotMITSUBISHI HEAVY IND LTD·Filed 1990·Granted Sep 4, 1990·44 cites·2 claims
- 0460US7450892B2Electrophotograph developing roller and image forming device using the sameFUJI ELEC DEVICE TECH CO LTD·Filed 2004·Granted Nov 11, 2008·8 cites·24 claims
- 0556US5244467AMethod for production of polyphenylene sulfone fibersTORAY INDUSTRIES·Filed 1990·Granted Sep 14, 1993·11 cites·2 claims
- 0647US4698568AAntiexplosion structure in a working robotMITSUBISHI HEAVY IND LTD·Filed 1986·Granted Oct 6, 1987·21 cites·4 claims
- 0745US4803895ABalancing mechanismMITSUBISHI HEAVY IND LTD·Filed 1987·Granted Feb 14, 1989·12 cites·9 claims
- 0843US5919591AElectrophotographic photoconductor and method of manufacturing the sameFUJI ELECTRIC CO LTD·Filed 1997·Granted Jul 6, 1999·8 cites·6 claims
- 0938US5905009ACharge generation agent electrophotographic photoconductors and method for making sameFUJI ELECTRIC CO LTD·Filed 1997·Granted May 18, 1999·4 cites·18 claims
- 1030US2005065006A1Cylindrical developer carrier and production method thereofFUJI ELECTRIC IMAGING DEVICE·Filed 2002·Application pending·0 cites
- 1129US2003059696A1Endless flexible, single-layer, positively charged organic photosensitive body and an image forming device using the sameFiled 2002·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Toshio Tsubota 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 →