Inventor · disambiguated record
Takaaki Yanagisawa
Also filed as: YANAGISAWA TAKAAKI
28 granted patents·1,960 citations·filing 1991–2008
98Inventor score
Files withRICOH KK28
Top patents by PatentIndex Score
28 records- 0199US6628908B2Toner supply unit and image forming apparatusRICOH KK·Filed 2001·Granted Sep 30, 2003·175 cites·19 claims
- 0299US6591077B2Image forming apparatus and toner container thereforRICOH KK·Filed 2001·Granted Jul 8, 2003·143 cites·24 claims
- 0399US6507720B2Color 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
- 0499US6393241B1Nozzle 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
- 0598US7130558B2Toner supply unit and image forming apparatusRICOH KK·Filed 2005·Granted Oct 31, 2006·32 cites·62 claims
- 0698US6567637B2Apparatus and method for replenishing a developing device with toner while suppressing toner remainingRICOH KK·Filed 2001·Granted May 20, 2003·105 cites·28 claims
- 0798US6501913B2Container, its support structure, and image formation apparatusRICOH KK·Filed 2001·Granted Dec 31, 2002·100 cites·10 claims
- 0898US6289195B1Developer replenishing device and developer container for use therewithRICOH KK·Filed 2000·Granted Sep 11, 2001·79 cites·31 claims
- 0998US6075963ADeveloper replenishing device and developer container for use therewithRICOH KK·Filed 1999·Granted Jun 13, 2000·108 cites·5 claims
- 1098US5500719ADeveloper replenishing device and developer container for use therewithRICOH KK·Filed 1995·Granted Mar 19, 1996·92 cites·35 claims
- 1198US5455662ADeveloper replenishing device and developer container for use therewithRICOH KK·Filed 1993·Granted Oct 3, 1995·153 cites·45 claims
- 1297US6775503B2Image forming apparatus with improved capabilities for toner supplyRICOH KK·Filed 2002·Granted Aug 10, 2004·79 cites·15 claims
- 1397US5918090ADeveloper replenishing device and developer container for use therewithRICOH KK·Filed 1998·Granted Jun 29, 1999·64 cites·2 claims
- 1497US5627631ADeveloper replenishing device and developer container for use therewithRICOH KK·Filed 1996·Granted May 6, 1997·78 cites·7 claims
- 1597US5441177AToner container and toner replenishing device including a cap member having a shutterRICOH KK·Filed 1993·Granted Aug 15, 1995·104 cites·24 claims
- 1694US6748190B2Apparatus and method for replenishing a developing device with toner while suppressing toner remainingRICOH KK·Filed 2003·Granted Jun 8, 2004·42 cites·28 claims
- 1792US7356290B2Toner supply unit and image forming apparatusRICOH KK·Filed 2006·Granted Apr 8, 2008·9 cites·34 claims
- 1892US6751431B2Developer replenishing device and developer container for use therewithRICOH KK·Filed 2002·Granted Jun 15, 2004·25 cites·15 claims
- 1991US7289748B2Apparatus and method for replenishing a developing device with toner while suppressing toner remainingRICOH KK·Filed 2005·Granted Oct 30, 2007·10 cites·14 claims
- 2091US5367363AImage forming apparatus having rotatable electrophotographic process unitRICOH KK·Filed 1991·Granted Nov 22, 1994·42 cites·35 claims
- 2190US7542697B2Toner supply unit and image forming apparatusRICOH KK·Filed 2008·Granted Jun 2, 2009·7 cites·20 claims
- 2289US7209689B2Toner supply unit and image forming apparatusRICOH KK·Filed 2003·Granted Apr 24, 2007·20 cites·111 claims
- 2384US6418293B2Developer replenishing device and developer container for use therewithRICOH KK·Filed 2001·Granted Jul 9, 2002·30 cites·23 claims
- 2483US7088945B2Toner supply unit and image forming apparatusRICOH KK·Filed 2004·Granted Aug 8, 2006·13 cites·60 claims
- 2579USRE36301EImage forming apparatus having rotatable electrophotographic process unitRICOH KK·Filed 1996·Granted Sep 14, 1999·25 cites·36 claims
- 2677US6901230B2Toner container having lid including lugRICOH KK·Filed 2004·Granted May 31, 2005·8 cites·21 claims
- 2775US7218880B2Apparatus and method for replenishing a developing device with toner while suppressing toner remainingRICOH KK·Filed 2004·Granted May 15, 2007·10 cites·18 claims
- 2849US5245385AImage forming apparatus which reduces noise generated therefromRICOH KK·Filed 1991·Granted Sep 14, 1993·17 cites·32 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →