Inventor · disambiguated record
Koichi Tomiyama
Also filed as: TOMIYAMA KOICHI
31 granted patents·790 citations·filing 1989–1999
98Inventor score
Files withCANON KK31
Top patents by PatentIndex Score
31 records- 0194US5137796AMagnetic developer, comprising spherical particles magneticCANON KK·Filed 1990·Granted Aug 11, 1992·58 cites·12 claims
- 0293US5139914ADeveloper for developing electrostatic images and image forming apparatusCANON KK·Filed 1990·Granted Aug 18, 1992·47 cites·22 claims
- 0391US5976752AToner and image forming methodCANON KK·Filed 1998·Granted Nov 2, 1999·58 cites·152 claims
- 0490US5307122AImage forming apparatus apparatus unit facsimile apparatus and developer comprising hydrophobic silica fine powder for developing electrostatic imagesCANON KK·Filed 1990·Granted Apr 26, 1994·33 cites·75 claims
- 0589US5262267AMagnetic developer, image forming method and image forming apparatusCANON KK·Filed 1992·Granted Nov 16, 1993·40 cites·18 claims
- 0688US5534981AImage forming apparatus and developer for developing electrostatic imagesCANON KK·Filed 1993·Granted Jul 9, 1996·29 cites·99 claims
- 0788US5424810AMagnetic toner, magnetic developer, apparatus unit, image forming apparatus and facsimile apparatusCANON KK·Filed 1992·Granted Jun 13, 1995·37 cites·132 claims
- 0887US6060202AToner for developing electrostatic images image forming method and process cartridgeCANON KK·Filed 1998·Granted May 9, 2000·40 cites·108 claims
- 0985US5338638AToner for developing electrostatic image and process for production thereofCANON KK·Filed 1991·Granted Aug 16, 1994·30 cites·49 claims
- 1085US4939060AMagnetic toner for developing electrostatic imagesCANON KK·Filed 1989·Granted Jul 3, 1990·55 cites·24 claims
- 1184US5319424ADeveloper for developing electrostatic image, image forming method, electrophotographic apparatus, apparatus unit, and facsimile apparatusCANON KK·Filed 1993·Granted Jun 7, 1994·25 cites·87 claims
- 1283US6002895AProcess cartridgeCANON KK·Filed 1997·Granted Dec 14, 1999·34 cites·23 claims
- 1383US5750302AMagnetic toner for developing electrostatic image, image forming process, and process cartridgeCANON KK·Filed 1997·Granted May 12, 1998·32 cites·86 claims
- 1481US5270770AImage forming method comprising electrostatic transfer of developed image and corresponding image forming apparatusCANON KK·Filed 1992·Granted Dec 14, 1993·21 cites·35 claims
- 1580US5180649AToner having crosslinkages and method of fixing sameCANON KK·Filed 1990·Granted Jan 19, 1993·26 cites·58 claims
- 1679US5464722AProduction of toner for developing electrostatic imagesCANON KK·Filed 1994·Granted Nov 7, 1995·23 cites·29 claims
- 1778US5270143ADeveloper for developing electrostatic image, image forming method, electrophotographic apparatus, apparatus unit, and facsimile apparatusCANON KK·Filed 1991·Granted Dec 14, 1993·19 cites·32 claims
- 1877US6238834B1Magnetic toner for developing electrostatic images, process for producing it, image forming method and process cartridgeCANON KK·Filed 1998·Granted May 29, 2001·24 cites·44 claims
- 1976US5447815ADeveloper for developing electrostatic image and image forming methodCANON KK·Filed 1993·Granted Sep 5, 1995·20 cites·44 claims
- 2072US5210617ADeveloper for developing electrostatic images and image forming apparatusCANON KK·Filed 1992·Granted May 11, 1993·18 cites·83 claims
- 2169US6187495B1Yellow toner, process for producing the tower and image forming method using the tonerCANON KK·Filed 1999·Granted Feb 13, 2001·18 cites·71 claims
- 2269US5736288AToner for developing electrostatic images, process cartridge, and image forming methodCANON KK·Filed 1995·Granted Apr 7, 1998·20 cites·50 claims
- 2368US5858593AMagnetic toner, apparatus unit and image forming methodCANON KK·Filed 1997·Granted Jan 12, 1999·19 cites·66 claims
- 2467US5663026AMagnetic toner, process cartridge and image forming methodCANON KK·Filed 1996·Granted Sep 2, 1997·18 cites·29 claims
- 2558US6090515AToner for developing electrostatic image, image forming method and process cartridgeCANON KK·Filed 1997·Granted Jul 18, 2000·11 cites·38 claims
- 2656US5217836AToner for developing electrostatic imagesCANON KK·Filed 1990·Granted Jun 8, 1993·15 cites·18 claims
- 2746US6365314B1Toner for developing electrostatic image, image forming method and process cartridgeCANON KK·Filed 1999·Granted Apr 2, 2002·6 cites·35 claims
- 2844US5802428AImages forming apparatus and developer for developing electrostatic imagesCANON KK·Filed 1995·Granted Sep 1, 1998·5 cites·63 claims
- 2939US5392103AImage forming method comprising electrostatic transfer of developed image and corresponding image forming apparatusCANON KK·Filed 1993·Granted Feb 21, 1995·3 cites·20 claims
- 3036US5510223AImage forming method comprising electrostatic transfer of developed image and corresponding image forming apparatusCANON KK·Filed 1994·Granted Apr 23, 1996·2 cites·26 claims
- 3136US5422707AToner for developing electrostatic images, detachable apparatus, image forming apparatus and facsimile apparatusCANON KK·Filed 1994·Granted Jun 6, 1995·4 cites·62 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →