Inventor · disambiguated record
Yuji Kamiyama
Also filed as: KAMIYAMA YUJI
51 granted patents·5 pending applications·1,052 citations·filing 1993–2025
98Inventor score
Top patents by PatentIndex Score
56 records- 0197US5731828AInk jet head, ink jet head cartridge and ink jet apparatusCANON KK·Filed 1995·Granted Mar 24, 1998·121 cites·16 claims
- 0296US6616257B2Printing head, printing method and apparatus using same, and apparatus and method for correcting said printing headCANON KK·Filed 2001·Granted Sep 9, 2003·53 cites·12 claims
- 0395US6116714APrinting head, printing method and apparatus using same, and apparatus and method for correcting said printing headCANON KK·Filed 1995·Granted Sep 12, 2000·99 cites·41 claims
- 0493US6428154B1Ink cartridge and a method for sealing an aperture provided for such cartridgeCANON KK·Filed 1996·Granted Aug 6, 2002·81 cites·7 claims
- 0592US5953030AInk container with improved air venting structureCANON KK·Filed 1996·Granted Sep 14, 1999·68 cites·25 claims
- 0690US9207623B2Image forming apparatus including a neutralizing unit for neutralizing electric charge on an image supporting bodyKYOCERA DOCUMENT SOLUTIONS INC·Filed 2012·Granted Dec 8, 2015·6 cites·10 claims
- 0790US6478416B2Sealing method for ink cartridgeCANON KK·Filed 2001·Granted Nov 12, 2002·29 cites·2 claims
- 0886US6168266B1Ink tank cartridge, a manufacturing method thereof and a packaging structure of the ink tank cartridgeCANON KK·Filed 1996·Granted Jan 2, 2001·39 cites·37 claims
- 0986US5880762AInk jet head with preliminary heater elementCANON KK·Filed 1997·Granted Mar 9, 1999·41 cites·5 claims
- 1085US10042283B2Developing device that removes toner accumulated on top surface of regulating blade with simple configuration, and image forming apparatus including the sameKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Aug 7, 2018·2 cites·11 claims
- 1184US6471339B1Substrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving recording headCANON KK·Filed 2000·Granted Oct 29, 2002·21 cites·40 claims
- 1283US5481289AInk supply mechanism, ink jet cartridge provided with such a mechanism, and ink jet recording apparatus provided with such a mechanismCANON KK·Filed 1993·Granted Jan 2, 1996·47 cites·29 claims
- 1381US5660739AMethod of producing substrate for ink jet recording head, ink jet recording head and ink jet recording apparatusCANON KK·Filed 1995·Granted Aug 26, 1997·43 cites·11 claims
- 1481US2025390049A1Sheet conveying device capable of acquiring conveying amount of uppermost sheet in stack of sheets by conveying member, image forming apparatus, and acquisition methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2025·Application pending·0 cites
- 1580US6284421B1Carrier for electrophotography, process for production of the carrier and developing agent for electrophotography using the carrierIDEMITSU KOSAN CO·Filed 1999·Granted Sep 4, 2001·28 cites·8 claims
- 1680US2025390051A1Sheet conveying device capable of determining whether or not delay has occurred in supply of sheet by sheet supply portion without using additional sensor, an image forming apparatus, and determination methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2025·Application pending·0 cites
- 1780US2025390048A1Sheet conveying device capable of determining whether or not stack of sheets placed on lift portion is in setting failure state, image forming apparatus, and determination methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2025·Application pending·0 cites
- 1879US6829448B2Image forming apparatus and image forming methodKYOCERA CORP·Filed 2003·Granted Dec 7, 2004·18 cites·19 claims
- 1979US6490792B1Ink tank cartridge, a manufacturing method thereof and a packaging structure of the ink tank cartridgeCANON KK·Filed 1998·Granted Dec 10, 2002·28 cites·5 claims
- 2079US5943070ASubstrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving recording headCANON KK·Filed 1994·Granted Aug 24, 1999·31 cites·14 claims
- 2178US9274453B2Developing roller, developing device, and image forming apparatus including developing deviceKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Mar 1, 2016·2 cites·5 claims
- 2277US5886713APrinthead and printing apparatus using the sameCANON KK·Filed 1996·Granted Mar 23, 1999·36 cites·26 claims
- 2377USD381360SInk cartridge for plotterCANON KK·Filed 1996·Granted Jul 22, 1997·20 cites·1 claims
- 2476US2025388421A1Sheet conveying device capable of acquiring pay-out amount of sheet from stack of sheets without providing dedicated sensor, an image forming apparatus, and acquisition methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2025·Application pending·0 cites
- 2574US6113230AInk tank package container having a seal memberCANON KK·Filed 1998·Granted Sep 5, 2000·22 cites·18 claims
- 2672US6302532B1Method of manufacturing an ink containerCANON KK·Filed 1998·Granted Oct 16, 2001·22 cites·2 claims
- 2771US6409300B2Printing head, printing method and apparatus using same, and apparatus and method for correcting said printing headCANON KK·Filed 1999·Granted Jun 25, 2002·21 cites·16 claims
- 2869US6003973AInk jet head, apparatus and method having individually-drivable heat generating resistors variably spaced from an electric outletCANON KK·Filed 1996·Granted Dec 21, 1999·23 cites·15 claims
- 2969US5828386ARecording head and apparatus for detecting contact conditionCANON KK·Filed 1996·Granted Oct 27, 1998·25 cites·38 claims
- 3068US12346050B2Image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Granted Jul 1, 2025·0 cites·4 claims
- 3168US6336719B1Ink tank cartridge, a manufacturing method thereof and a packaging structure of the ink tank cartridgeCANON KK·Filed 1998·Granted Jan 8, 2002·18 cites·17 claims
- 3266US6439690B2Element substrate having connecting wiring between heat generating resistor elements and ink jet recording apparatusCANON KK·Filed 2001·Granted Aug 27, 2002·8 cites·24 claims
- 3366US5943069AInk jet recording head and apparatus in which recording is controlled in accordance with calculations involving a measured resistanceCANON KK·Filed 1996·Granted Aug 24, 1999·23 cites·17 claims
- 3465US12455526B2Image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Granted Oct 28, 2025·0 cites·6 claims
- 3564US12498648B2Image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Granted Dec 16, 2025·0 cites·10 claims
- 3662US9304445B2Developing roller, developing device, image forming apparatus, and manufacturing method of developing rollerKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Apr 5, 2016·0 cites·8 claims
- 3760US2025388422A1Sheet conveying device capable of suppressing lowering of acquisition accuracy of sheet conveying speed, image forming apparatus, and acquisition methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2025·Application pending·0 cites
- 3858US9122194B2Developing roller, developing device, and image forming apparatus including developing deviceKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Sep 1, 2015·0 cites·7 claims
- 3958US9122193B2Developing roller, developing device, and image forming apparatus including developing deviceKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Sep 1, 2015·0 cites·10 claims
- 4058US5485186AInk jet recording apparatus with efficient and reliable ink supplyCANON KK·Filed 1993·Granted Jan 16, 1996·14 cites·2 claims
- 4157US6257695B1Substrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving record headCANON KK·Filed 1999·Granted Jul 10, 2001·12 cites·11 claims
- 4253US11112730B2Developing device allowing selection of a stirring/conveying member to be used from a plurality of types of stirring/conveying members with rotary shafts with different shaft-diameters and image forming apparatus therewithKYOCERA DOCUMENT SOLUTIONS INC·Filed 2020·Granted Sep 7, 2021·0 cites·22 claims
- 4352US6381437B1Image formation method and apparatus using electrophotographyKYOCERA CORP·Filed 2000·Granted Apr 30, 2002·5 cites·20 claims
- 4449US6332674B1Ink cartridge and a method for sealing an aperture provided for such cartridgeCANON KK·Filed 1998·Granted Dec 25, 2001·9 cites·5 claims
- 4548US10642196B2Cleaning device and image forming apparatus therewithKYOCERA DOCUMENT SOLUTIONS INC·Filed 2019·Granted May 5, 2020·0 cites·6 claims
- 4647US9201349B2Developing device, image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Dec 1, 2015·0 cites·4 claims
- 4746US9195159B2Image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Nov 24, 2015·0 cites·4 claims
- 4845US6562537B1Electrostatic latent image developerKYOCERA CORP·Filed 2000·Granted May 13, 2003·2 cites·13 claims
- 4945US6382772B1Ink jet head, apparatus and method having individually-drivable heat generating resistors variably spaced from an ejection outletCANON KK·Filed 1999·Granted May 7, 2002·7 cites·1 claims
- 5045USD404068SInk tank for printerCANON KK·Filed 1996·Granted Jan 12, 1999·5 cites·1 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →