Inventor · disambiguated record
Toshiyuki Ugai
Also filed as: UGAI TOSHIYUKI
17 granted patents·1 pending application·371 citations·filing 1990–2004
95Inventor score
Technology areasG03G
Files withCANON KK18
Top patents by PatentIndex Score
18 records- 0190US5512402ACarrier for electrophotography, two-component type developer, and image forming methodCANON KK·Filed 1994·Granted Apr 30, 1996·36 cites·26 claims
- 0289US6346356B1Toner, toner production process, and image-forming methodCANON KK·Filed 2000·Granted Feb 12, 2002·35 cites·39 claims
- 0388US5774771AImage forming method and apparatus using a particular tonerCANON KK·Filed 1996·Granted Jun 30, 1998·45 cites·66 claims
- 0482US5698354AImage-forming method and image-forming apparatusCANON KK·Filed 1996·Granted Dec 16, 1997·34 cites·41 claims
- 0580US6835521B2Process for producing toner particles, and tonerCANON KK·Filed 2003·Granted Dec 28, 2004·16 cites·19 claims
- 0679US6015647AToner for developing electrostatic image and image forming methodCANON KK·Filed 1999·Granted Jan 18, 2000·28 cites·38 claims
- 0779US5670288ACarrier for electrophotography, two-component type developer, and image forming methodCANON KK·Filed 1996·Granted Sep 23, 1997·25 cites·75 claims
- 0874US5733702AImage forming method employing toner with external additiveCANON KK·Filed 1995·Granted Mar 31, 1998·21 cites·145 claims
- 0972US5994019AImage forming methodCANON KK·Filed 1997·Granted Nov 30, 1999·22 cites·36 claims
- 1071US5856055AToner for developing electrostatic images and process for production thereofCANON KK·Filed 1998·Granted Jan 5, 1999·21 cites·38 claims
- 1168US5637432AToner for developing electrostatic image comprising titanium oxide particlesCANON KK·Filed 1995·Granted Jun 10, 1997·16 cites·45 claims
- 1267US5102761AColor toner for electrophotography containing a phenolic compoundCANON KK·Filed 1990·Granted Apr 7, 1992·16 cites·43 claims
- 1361US5885742ACarrier for electrophotography, two-component type developer, and image forming methodCANON KK·Filed 1997·Granted Mar 23, 1999·14 cites·67 claims
- 1458US6030737ANon-magnetic toner for developing electrostatic image, process for producing non-magnetic toner particles, and image forming methodCANON KK·Filed 1997·Granted Feb 29, 2000·13 cites·64 claims
- 1556US6285848B1Electrophotographic apparatus, image forming method, and process cartridge for developing an image with toner containing an external additiveCANON KK·Filed 1998·Granted Sep 4, 2001·12 cites·63 claims
- 1651US5989770AProcess for producing toner for developing electrostatic latent imagesCANON KK·Filed 1999·Granted Nov 23, 1999·9 cites·21 claims
- 1748US6054244AProcess for producing tonerCANON KK·Filed 1998·Granted Apr 25, 2000·8 cites·19 claims
- 1837US2004259018A1Process for producing toner particles, and tonerCANON KK·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →