Inventor · disambiguated record
Hiroyuki Mabuchi
Also filed as: MABUCHI HIROYUKI
32 granted patents·1 pending application·306 citations·filing 1994–2015
97Inventor score
Top patents by PatentIndex Score
33 records- 0193US9360816B1Toner bottle driving device control method and image forming apparatusMABUCHI HIROYUKI·Filed 2015·Granted Jun 7, 2016·22 cites·11 claims
- 0292US5600405ABias cleaning system and electrostatic printing apparatus therewith and operating method thereofHITACHI LTD·Filed 1994·Granted Feb 4, 1997·46 cites·25 claims
- 0389US9507313B2Image forming apparatus with removable unit and a connectable device to connect to the removable unitTERAI JUNICHI·Filed 2015·Granted Nov 29, 2016·4 cites·16 claims
- 0486US6993275B2Image position detecting methodRICOH PRINTING SYS LTD·Filed 2004·Granted Jan 31, 2006·26 cites·17 claims
- 0584US6871036B2Belt driving apparatus and image forming apparatus using the sameHITACHI LTD·Filed 2003·Granted Mar 22, 2005·23 cites·15 claims
- 0682US7502579B2Developing device using developer of particular properties suitable thereforeRICOH KK·Filed 2005·Granted Mar 10, 2009·7 cites·9 claims
- 0782US6738586B2Print control method of electrophotograph and image formation apparatus with potential sensor using the methodHITACHI PRINTING SOLUTIONS LTD·Filed 2002·Granted May 18, 2004·20 cites·17 claims
- 0881US6330405B1Image forming apparatusHITACHI KOKI KK·Filed 2000·Granted Dec 11, 2001·20 cites·6 claims
- 0979US6853829B2Multi-color printer and method thereforHITACHI PRINTING SOLUTIONS LTD·Filed 2002·Granted Feb 8, 2005·17 cites·30 claims
- 1074US7970307B2Methods and apparatus for transferring a toner image via electrophotographicsRICOH CO LTD·Filed 2008·Granted Jun 28, 2011·4 cites·7 claims
- 1174US7574164B2Developing device and electrophotographic apparatus using the sameRICOH KK·Filed 2005·Granted Aug 11, 2009·4 cites·19 claims
- 1273US9323176B2Powder supply device and image forming apparatus incorporating sameTERAI JUNICHI·Filed 2015·Granted Apr 26, 2016·1 cites·9 claims
- 1373US7643779B2Developer transporting amount controlling member, developing apparatus, imaging apparatus, and method for exchanging developing unitRICOH KK·Filed 2006·Granted Jan 5, 2010·4 cites·11 claims
- 1470US6879800B2Developing apparatus and electrostatic record apparatusRICOH PRINTING SYS LTD·Filed 2002·Granted Apr 12, 2005·11 cites·18 claims
- 1568US7953335B2Image forming apparatus and tandem image forming apparatusRICOH CO LTD·Filed 2008·Granted May 31, 2011·3 cites·17 claims
- 1668US5832333AElectrostatic recording apparatus and electrostatic recording methodHITACHI KOKI KK·Filed 1996·Granted Nov 3, 1998·19 cites·6 claims
- 1767US6684036B2Image forming apparatusHITACHI KOKI KK·Filed 2002·Granted Jan 27, 2004·10 cites·21 claims
- 1863US7167667B2Developing apparatus and electrostatic recording apparatus using the sameRICOH PRINTING SYS LTD·Filed 2004·Granted Jan 23, 2007·8 cites·4 claims
- 1962US7873312B2Transfer apparatus, method of manufacturing the transfer apparatus and image forming apparatus using the transfer apparatusRICOH CO LTD·Filed 2007·Granted Jan 18, 2011·2 cites·23 claims
- 2061US5659841AElectrostatic recording control method and electrostatic recording apparatusHITACHI KOKI KK·Filed 1995·Granted Aug 19, 1997·17 cites·16 claims
- 2160US9031474B2Powder feeding device having negative pressure generation control and power discharge control and image forming apparatusOTOME YUKIO·Filed 2014·Granted May 12, 2015·0 cites·13 claims
- 2258US6271874B1Electrophotographic printer having an image memory, a horizontal scanning fringe correction exposure determining section, a vertical scanning fringe correction exposure determining section, and a switchHITACHI KOKI KK·Filed 2000·Granted Aug 7, 2001·3 cites·5 claims
- 2357US5884119ALight exposure controlling method of electrophotographic apparatus for suppressing fringe in pictureHITACHI LTD·Filed 1997·Granted Mar 16, 1999·12 cites·6 claims
- 2453US8837992B2Powder feeding device having negative pressure generation control and powder discharge control and image forming apparatusOTOME YUKIO·Filed 2011·Granted Sep 16, 2014·0 cites·12 claims
- 2553US5579096AImaging apparatus and method for cleaning transfer/conveyer meansHITACHI KOKI KK·Filed 1995·Granted Nov 26, 1996·12 cites·6 claims
- 2650US6487384B2Image forming electrophotography apparatus and magnetic developing unitHITACHI KOKI KK·Filed 2001·Granted Nov 26, 2002·4 cites·15 claims
- 2749US6694119B2Perfecting press apparatusHITACHI PRINTING SOLUTIONS LTD·Filed 2003·Granted Feb 17, 2004·4 cites·7 claims
- 2844US9529297B2Developing device, process cartridge, and image forming apparatus including sameOKAMOTO HIROAKI·Filed 2015·Granted Dec 27, 2016·0 cites·12 claims
- 2943US9658576B2Developing device, and process cartridge and image forming apparatus incorporating sameKIMURA HIDEKI·Filed 2015·Granted May 23, 2017·0 cites·14 claims
- 3040US6240270B1Color image forming method and device using potential division developmentHITACHI KOKI KK·Filed 2000·Granted May 29, 2001·1 cites·9 claims
- 3137US9395652B2Developing unit, process cartridge, and image forming apparatusKIKUCHI HIROSHI·Filed 2015·Granted Jul 19, 2016·0 cites·23 claims
- 3235US2005053396A1Image forming apparatus and charging deviceHITACHI PRINTING SOLUTIONS LTD·Filed 2004·Application pending·0 cites
- 3334US6131000AElectrophotographic printing apparatus using electric potential dividing developmentHITACHI LTD·Filed 1998·Granted Oct 10, 2000·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →