Inventor · disambiguated record
Tatsunori Ishiyama
Also filed as: ISHIYAMA TATSUNORI
19 granted patents·2 pending applications·649 citations·filing 1990–2007
96Inventor score
Files withCANON KK21
Top patents by PatentIndex Score
21 records- 0195US5202729ADeveloping apparatus having a coated developing rollerCANON KK·Filed 1991·Granted Apr 13, 1993·64 cites·23 claims
- 0295US5179397AImage forming apparatus with constant voltage and constant current controlCANON KK·Filed 1990·Granted Jan 12, 1993·65 cites·128 claims
- 0393US6084208AImage heating device which prevents temperature rise in non-paper feeding portion, and heaterCANON KK·Filed 1997·Granted Jul 4, 2000·67 cites·14 claims
- 0491US5177537ADeveloping apparatus with elastic regulating member urged to a developer carrying memberCANON KK·Filed 1990·Granted Jan 5, 1993·42 cites·17 claims
- 0590US5253024AFixing apparatus with rectifier elementCANON KK·Filed 1991·Granted Oct 12, 1993·41 cites·24 claims
- 0689US5621510AImage heating apparatus with driving roller having low thermal expansion coefficient outer layerCANON KK·Filed 1994·Granted Apr 15, 1997·36 cites·24 claims
- 0789US5144368ACharging device and image forming apparatus having sameCANON KK·Filed 1990·Granted Sep 1, 1992·39 cites·65 claims
- 0889US5034777ATransferring device having charging device with double oxide and voltage controlCANON KK·Filed 1990·Granted Jul 23, 1991·40 cites·35 claims
- 0988US5801360AImage fixing apparatusCANON KK·Filed 1995·Granted Sep 1, 1998·45 cites·6 claims
- 1088US5159393AImage forming apparatus having transfer device and image bearing member traveling at different speedsCANON KK·Filed 1990·Granted Oct 27, 1992·37 cites·30 claims
- 1185US5646717AImage forming apparatus having charging memberCANON KK·Filed 1995·Granted Jul 8, 1997·38 cites·115 claims
- 1284US5185496AElectrostatic latent image device having a coating layer provided on a developer carrying memberCANON KK·Filed 1991·Granted Feb 9, 1993·29 cites·86 claims
- 1383US5285245AElectrostatic transfer type image forming apparatus with recording material guide for changing direction of recording material separation from image transfer positionCANON KK·Filed 1992·Granted Feb 8, 1994·29 cites·10 claims
- 1480US5151736AImage forming apparatus with controlled transfer voltageCANON KK·Filed 1991·Granted Sep 29, 1992·25 cites·39 claims
- 1577US6980749B2Image forming apparatus with control feature based on transfer material discriminationCANON KK·Filed 2003·Granted Dec 27, 2005·15 cites·7 claims
- 1672US5459558ACharging device, image forming apparatus with same and a process unit detachably mountable to the image forming apparatusCANON KK·Filed 1995·Granted Oct 17, 1995·22 cites·30 claims
- 1760US6987939B2Image forming apparatus with two cleaning electric fields for transferring developer from a developer charging device onto an image bearing memberCANON KK·Filed 2003·Granted Jan 17, 2006·7 cites·24 claims
- 1855US6956594B2Image forming apparatus including two image bearing members and featuring a variable dot imageCANON KK·Filed 2003·Granted Oct 18, 2005·5 cites·21 claims
- 1952US2007157850A1Method for achromatizing dye, device which uses the same, and method for recycling recording mediumCANON KK·Filed 2007·Application pending·0 cites
- 2048US6947695B2Image forming apparatus including two image forming members and featuring a dot-shaped imageCANON KK·Filed 2003·Granted Sep 20, 2005·3 cites·13 claims
- 2139US2007151945A1Method of erasing image and method of recycling recording mediumCANON KK·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →