Inventor · disambiguated record
Nobuo Iwata
Also filed as: IWATA NOBUO
111 granted patents·3 pending applications·3,997 citations·filing 1975–2020
99Inventor score
Top patents by PatentIndex Score
114 records- 0199US7603054B2Image forming apparatus, powder supplying unit, toner container, powder container, and method of recycling the powder containerRICOH KK·Filed 2009·Granted Oct 13, 2009·57 cites·13 claims
- 0299US7593674B2Body member of a powder containerRICOH KK·Filed 2007·Granted Sep 22, 2009·60 cites·32 claims
- 0399US7536139B2Powder container for use in an image forming apparatus having an opening which faces horizontallyRICOH KK·Filed 2007·Granted May 19, 2009·60 cites·25 claims
- 0499US7450891B2Developer container for an image forming apparatusRICOH KK·Filed 2005·Granted Nov 11, 2008·58 cites·35 claims
- 0599US7277664B2Image forming device, powder feeding device, toner storage container, powder storage container, and method of recycling the containersRICOH KK·Filed 2003·Granted Oct 2, 2007·104 cites·44 claims
- 0699US7085522B2Developer container for an image forming apparatusRICOH KK·Filed 2005·Granted Aug 1, 2006·45 cites·29 claims
- 0799US7065313B2Developer container, developer replenishing device using the same and image forming apparatus including the sameRICOH KK·Filed 2005·Granted Jun 20, 2006·58 cites·18 claims
- 0899US6628915B2Developer container for an image forming apparatusRICOH KK·Filed 2002·Granted Sep 30, 2003·120 cites·7 claims
- 0999US6628908B2Toner supply unit and image forming apparatusRICOH KK·Filed 2001·Granted Sep 30, 2003·175 cites·19 claims
- 1099US6393241B1Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery tonerRICOH KK·Filed 2000·Granted May 21, 2002·181 cites·53 claims
- 1198US7257348B2Body member of a powder containerRICOH KK·Filed 2007·Granted Aug 14, 2007·29 cites·2 claims
- 1298US7221891B2Body member of a powder containerRICOH KK·Filed 2003·Granted May 22, 2007·90 cites·15 claims
- 1398US7130558B2Toner supply unit and image forming apparatusRICOH KK·Filed 2005·Granted Oct 31, 2006·32 cites·62 claims
- 1498US6542707B2Method and apparatus for image forming capable of effectively transferring various kinds of powderRICOH KK·Filed 2001·Granted Apr 1, 2003·101 cites·71 claims
- 1598US6526246B2Powder replenishing device, powder conveying device, developing apparatus using the same powder replenishing device or powder conveying device, and image forming apparatus using the same powder replenishing device or powder conveying deviceRICOH KK·Filed 2001·Granted Feb 25, 2003·104 cites·68 claims
- 1698US6381435B2Color image forming apparatusRICOH KK·Filed 2000·Granted Apr 30, 2002·163 cites·15 claims
- 1798US6282396B1Color image forming apparatus and method of obtaining color images with decreased image positional deviationRICOH KK·Filed 2000·Granted Aug 28, 2001·140 cites·8 claims
- 1898US5875380AImage forming apparatus eliminating influence of fluctuation in speed of a conveying belt to correction of offset in color registrationRICOH KK·Filed 1998·Granted Feb 23, 1999·149 cites·9 claims
- 1997US8112016B2Developing agent circulation system and image forming apparatus using sameMATSUMOTO JUNICHI·Filed 2008·Granted Feb 7, 2012·36 cites·10 claims
- 2097US7356288B2Developing apparatus having improved agitation effectRICOH KK·Filed 2005·Granted Apr 8, 2008·39 cites·24 claims
- 2197US7346286B2Method and apparatus for image forming effectively detecting deterioration of developerRICOH KK·Filed 2005·Granted Mar 18, 2008·37 cites·40 claims
- 2297US7346299B2Developer container for an image forming apparatusRICOH KK·Filed 2004·Granted Mar 18, 2008·57 cites·34 claims
- 2397US6898405B2Developer container, developer replenishing device using the same and image forming apparatus including the sameRICOH KK·Filed 2003·Granted May 24, 2005·66 cites·32 claims
- 2497US6628913B2Method and apparatus for replenishing developer with a flexible powder containerRICOH KK·Filed 2001·Granted Sep 30, 2003·87 cites·131 claims
- 2597US6571076B2Image forming apparatus and toner container thereforRICOH KK·Filed 2001·Granted May 27, 2003·76 cites·13 claims
- 2697US6128459AColor image forming apparatus and method of obtaining color images with decreased image positional deviationRICOH KK·Filed 1997·Granted Oct 3, 2000·121 cites·8 claims
- 2797US4106611ASerial printing apparatusRICOH KK·Filed 1975·Granted Aug 15, 1978·76 cites·12 claims
- 2896US7406278B2Powder container having a lower section with multiple parts which rotatably engage with each otherRICOH KK·Filed 2006·Granted Jul 29, 2008·16 cites·40 claims
- 2996US6778289B1Image processing deviceFUJI XEROX CO LTD·Filed 2000·Granted Aug 17, 2004·170 cites·14 claims
- 3095US7245853B2Developer container, developer supplying unit, and image forming apparatusRICOH KK·Filed 2004·Granted Jul 17, 2007·59 cites·22 claims
- 3195US6871034B2Developer container for an image forming apparatusRICOH KK·Filed 2003·Granted Mar 22, 2005·36 cites·26 claims
- 3295US6785496B2Developer container, developing conveying device and image forming apparatus using the sameRICOH KK·Filed 2002·Granted Aug 31, 2004·58 cites·58 claims
- 3395US6142690AColor image forming apparatus with drive power transmission mechanismRICOH KK·Filed 1997·Granted Nov 7, 2000·76 cites·38 claims
- 3494US8588651B2Rotary drive device with a planetary gear mechanism to drive a rotary body, and image forming apparatus including the sameMATSUDA HIROMICHI·Filed 2011·Granted Nov 19, 2013·9 cites·10 claims
- 3594US7783233B2Developing device including improved conveying device, process cartridge and image forming apparatus using the sameRICOH KK·Filed 2007·Granted Aug 24, 2010·18 cites·15 claims
- 3694US7542703B2Developing device replenishing a toner or a carrier of a two-ingredient type developer and image forming apparatus including the developing deviceRICOH KK·Filed 2003·Granted Jun 2, 2009·45 cites·45 claims
- 3794US7116928B2Powder discharging device and image forming apparatus using the sameRICOH KK·Filed 2003·Granted Oct 3, 2006·46 cites·25 claims
- 3894US5638159ADeveloping unit for an image forming apparatus and method of collecting bicomponent developer therefromRICOH KK·Filed 1995·Granted Jun 10, 1997·81 cites·8 claims
- 3994US5008711AImage forming apparatusRICOH KK·Filed 1988·Granted Apr 16, 1991·49 cites·9 claims
- 4093US7835653B2Developing device and image forming apparatusRICOH CO LTD·Filed 2007·Granted Nov 16, 2010·13 cites·13 claims
- 4193US7127198B2Image forming apparatus including a developer replenishing device for a two-ingredient type developerRICOH KK·Filed 2004·Granted Oct 24, 2006·38 cites·22 claims
- 4293US6597883B2Powder pump capable of effectively conveying powder and image forming apparatus using powder pumpRICOH KK·Filed 2002·Granted Jul 22, 2003·112 cites·60 claims
- 4392US7729642B2Stress-reduceable transport unit and image forming apparatus using the sameRICOH KK·Filed 2006·Granted Jun 1, 2010·14 cites·20 claims
- 4492US7356290B2Toner supply unit and image forming apparatusRICOH KK·Filed 2006·Granted Apr 8, 2008·9 cites·34 claims
- 4591US7792472B2Developing apparatus and image forming apparatus using sameRICOH KK·Filed 2007·Granted Sep 7, 2010·10 cites·8 claims
- 4691US7512364B2Image forming apparatus including a developer replenishing device for a two-ingredient type developerRICOH KK·Filed 2006·Granted Mar 31, 2009·10 cites·8 claims
- 4790US7542697B2Toner supply unit and image forming apparatusRICOH KK·Filed 2008·Granted Jun 2, 2009·7 cites·20 claims
- 4890US4908661AHolder device for handling an image carrier of an image forming apparatusRICOH KK·Filed 1988·Granted Mar 13, 1990·34 cites·24 claims
- 4989US7636536B2Image forming apparatus having an improved developer conveying systemRICOH KK·Filed 2006·Granted Dec 22, 2009·10 cites·15 claims
- 5089US7209689B2Toner supply unit and image forming apparatusRICOH KK·Filed 2003·Granted Apr 24, 2007·20 cites·111 claims
Showing the top 50 of 114 patent records by PatentIndex Score.
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