Inventor · disambiguated record
Tomoko Utsumi
Also filed as: UTSUMI LEGAL REPRESENTATIVE TO · UTSUMI TOMOKO
18 granted patents·4 pending applications·452 citations·filing 2004–2021
95Inventor score
Top patents by PatentIndex Score
22 records- 0199US7374851B2Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming methodRICOH KK·Filed 2006·Granted May 20, 2008·67 cites·25 claims
- 0299US7318989B2Toner, developer, toner container, process cartridge, image forming apparatus, and image forming methodRICOH KK·Filed 2006·Granted Jan 15, 2008·71 cites·14 claims
- 0398US7261989B2Toner for developing electrostatic images, developer, image forming method, and image forming apparatusRICOH KK·Filed 2006·Granted Aug 28, 2007·49 cites·16 claims
- 0498US7258959B2Toner for electrophotography and image forming apparatusRICOH KK·Filed 2005·Granted Aug 21, 2007·42 cites·34 claims
- 0597US7169525B2Toner, developer, image forming apparatus, process cartridge and image forming processRICOH KK·Filed 2005·Granted Jan 30, 2007·37 cites·26 claims
- 0696US7521164B2Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming methodRICOH KK·Filed 2008·Granted Apr 21, 2009·22 cites·7 claims
- 0794US7759036B2Toner and production method thereof, image forming apparatus and image forming method, and process cartridgeRICOH KK·Filed 2005·Granted Jul 20, 2010·17 cites·28 claims
- 0891US7566521B2Toner, developer, toner container, process cartridge, image forming apparatus, and image forming methodRICOH KK·Filed 2007·Granted Jul 28, 2009·11 cites·16 claims
- 0991US7522857B2Toner, image forming apparatus using the same and process cartridgeRICOH KK·Filed 2005·Granted Apr 21, 2009·14 cites·17 claims
- 1091US7172844B2Toner for electrophotography, and image forming process, process cartridge and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Feb 6, 2007·36 cites·15 claims
- 1185US7368212B2Toner for developing electrostatic image, developer, image forming apparatus, process for forming image, process cartridge and process for measuring porosity of tonerRICOH KK·Filed 2004·Granted May 6, 2008·23 cites·18 claims
- 1283US7288353B2Toner, developer, image developer and image forming apparatusRICOH KK·Filed 2004·Granted Oct 30, 2007·18 cites·17 claims
- 1377US7749674B2Toner, developer, image developer and image forming apparatusRICOH KK·Filed 2007·Granted Jul 6, 2010·4 cites·13 claims
- 1477US7442484B2Image forming method using tonerRICOH KK·Filed 2004·Granted Oct 28, 2008·16 cites·13 claims
- 1571US7071617B2Light-emitting apparatus and method for forming the sameTOYOTA JIDOSHOKKI KK·Filed 2004·Granted Jul 4, 2006·18 cites·13 claims
- 1655US7642032B2Toner, developer, image forming apparatus and image forming methodRICOH KK·Filed 2004·Granted Jan 5, 2010·5 cites·10 claims
- 1751US2004222432A1Area light emitting device, method for manufacturing area light emitting device, and optical deviceFiled 2004·Application pending·0 cites
- 1848US7122958B2Light-emitting apparatus and method for forming the sameTOYOTA JIDOSHOKKI KK·Filed 2004·Granted Oct 17, 2006·2 cites·11 claims
- 1940US2005122037A1Electroluminescent element and lighting unitFiled 2004·Application pending·0 cites
- 2039US2006176421A1El device, process for manufacturing the same, and liquid crystal display employing el deviceUTSUMI TETSUYA·Filed 2004·Application pending·0 cites
- 2132US2006210908A1Image forming method, image forming apparatus, and process cartridgeUMEMURA KAZUHIKO·Filed 2006·Application pending·0 cites
- 2228US11677836B2Server apparatus, communication system and communication methodOGASAWARA KOTA·Filed 2021·Granted Jun 13, 2023·0 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Tomoko Utsumi 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 →