Inventor · disambiguated record
Masahiro Yonekawa
Also filed as: YONEKAWA MASAHIRO
29 granted patents·3 pending applications·532 citations·filing 1993–2019
97Inventor score
Top patents by PatentIndex Score
32 records- 0199US6507720B2Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers thereforRICOH KK·Filed 2001·Granted Jan 14, 2003·209 cites·34 claims
- 0294US7552998B2Method and apparatus for image forming capable of increasing maintenance efficiencyRICOH KK·Filed 2005·Granted Jun 30, 2009·20 cites·16 claims
- 0387US5930561AProcess cartridge and image-formation device suitable for miniaturizationRICOH KK·Filed 1998·Granted Jul 27, 1999·44 cites·31 claims
- 0484US7731352B2Image forming apparatus capable of allowing easy maintenanceRICOH KK·Filed 2006·Granted Jun 8, 2010·6 cites·20 claims
- 0582USD433441SToner cartridgeRICOH CO LTD·Filed 1998·Granted Nov 7, 2000·25 cites·1 claims
- 0679US6057936AImage forming apparatus having internal space for sheet ejection and retentionRICOH KK·Filed 1998·Granted May 2, 2000·62 cites·23 claims
- 0775US7758182B2Image forming apparatus with multiple doorsRICOH KK·Filed 2006·Granted Jul 20, 2010·4 cites·11 claims
- 0870USD443891SPrinterRICOH KK·Filed 2000·Granted Jun 19, 2001·17 cites·1 claims
- 0967USD917613SPrinterODA SATOSHI·Filed 2019·Granted Apr 27, 2021·11 cites·1 claims
- 1066USD712960SPrinterRICOH CO LTD·Filed 2013·Granted Sep 9, 2014·14 cites·1 claims
- 1164USD681726SMulti-function printerYONEKAWA MASAHIRO·Filed 2012·Granted May 7, 2013·13 cites·1 claims
- 1262USD589084SCopying machineRICOH KK·Filed 2007·Granted Mar 24, 2009·12 cites·1 claims
- 1361USD623221SInkjet printerRICOH KK·Filed 2008·Granted Sep 7, 2010·11 cites·1 claims
- 1459US8287122B2Image forming apparatusYONEKAWA MASAHIRO·Filed 2009·Granted Oct 16, 2012·1 cites·14 claims
- 1558USD714861SPrinterTSURUOKA NAOTO·Filed 2013·Granted Oct 7, 2014·10 cites·1 claims
- 1653US9471099B2Container, image forming apparatus, and electronic deviceYONEKAWA MASAHIRO·Filed 2012·Granted Oct 18, 2016·0 cites·14 claims
- 1753USD359484SFacsimile transmitter-receiverRICOH CO LTD·Filed 1993·Granted Jun 20, 1995·7 cites·1 claims
- 1850USD566170SInkjet printerRICOH KK·Filed 2006·Granted Apr 8, 2008·7 cites·1 claims
- 1950US5915157ASheet transport system and apparatus for an image-forming apparatus with crossing sheet transport pathsRICOH KK·Filed 1998·Granted Jun 22, 1999·14 cites·58 claims
- 2049USD678406SInk cartridgeYONEKAWA MASAHIRO·Filed 2012·Granted Mar 19, 2013·7 cites·1 claims
- 2149US6131902ASheet feeding paths for apparatus with feed paths selectable to correspond to desired function of apparatusRICOH KK·Filed 1998·Granted Oct 17, 2000·14 cites·10 claims
- 2248US2008246826A1Image forming apparatus capable of allowing easy maintenanceYONEKAWA MASAHIRO·Filed 2007·Application pending·0 cites
- 2344USD566757SInkjet printerRICOH KK·Filed 2006·Granted Apr 15, 2008·5 cites·1 claims
- 2444USD558818SInkjet copying machineRICOH KK·Filed 2006·Granted Jan 1, 2008·5 cites·1 claims
- 2543US7909456B2Image forming apparatusRICOH CO LTD·Filed 2007·Granted Mar 22, 2011·0 cites·16 claims
- 2639USD683396SPrinterYONEKAWA MASAHIRO·Filed 2012·Granted May 28, 2013·3 cites·1 claims
- 2739USD599848SInkjet printerRICOH KK·Filed 2008·Granted Sep 8, 2009·3 cites·1 claims
- 2839USD490832SDigital cameraRICOH KK·Filed 2003·Granted Jun 1, 2004·3 cites·1 claims
- 2938US2007140708A1Image forming apparatus and associated methodology of indicating an available level of imaging resourcesYONEKAWA MASAHIRO·Filed 2006·Application pending·0 cites
- 3037USD678407SInk cartridgeYONEKAWA MASAHIRO·Filed 2012·Granted Mar 19, 2013·3 cites·1 claims
- 3136USD589083SCopying machineRICOH KK·Filed 2007·Granted Mar 24, 2009·2 cites·1 claims
- 3227US2002043910A1Image forming apparatus with a table top above a paper discharge areaFiled 1999·Application pending·0 cites
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