Inventor · disambiguated record
Goro Katsuyama
Also filed as: KATSUYAMA GORO
95 granted patents·4 pending applications·2,209 citations·filing 1999–2022
99Inventor score
Top patents by PatentIndex Score
99 records- 0199US7720417B2Toner container and image forming apparatusRICOH KK·Filed 2006·Granted May 18, 2010·36 cites·21 claims
- 0299US7603054B2Image 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
- 0399US7593674B2Body member of a powder containerRICOH KK·Filed 2007·Granted Sep 22, 2009·60 cites·32 claims
- 0499US7536139B2Powder 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
- 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
- 0699US6848685B2PrinterRICOH KK·Filed 2002·Granted Feb 1, 2005·140 cites·40 claims
- 0799US6507720B2Color 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
- 0898US8126375B2Toner container and image forming apparatusTAGUCHI NOBUYUKI·Filed 2011·Granted Feb 28, 2012·45 cites·20 claims
- 0998US7991334B2Toner container and image forming apparatusRICOH CO LTD·Filed 2010·Granted Aug 2, 2011·52 cites·20 claims
- 1098US7853184B2Toner container and image forming apparatusRICOH CO LTD·Filed 2006·Granted Dec 14, 2010·62 cites·34 claims
- 1198US7822371B2Toner container and image forming apparatusRICOH KK·Filed 2006·Granted Oct 26, 2010·77 cites·44 claims
- 1298US7706699B2Toner container and image forming apparatusRICOH KK·Filed 2006·Granted Apr 27, 2010·84 cites·23 claims
- 1398US7702262B2Toner container including a container body with a gripper at the end thereof, and associated methodRICOH KK·Filed 2006·Granted Apr 20, 2010·67 cites·25 claims
- 1498US7515855B2Powder container having a lower part with a trapezoid-shaped cross-sectionRICOH KK·Filed 2006·Granted Apr 7, 2009·43 cites·35 claims
- 1598US7257348B2Body member of a powder containerRICOH KK·Filed 2007·Granted Aug 14, 2007·29 cites·2 claims
- 1698US7221891B2Body member of a powder containerRICOH KK·Filed 2003·Granted May 22, 2007·90 cites·15 claims
- 1797US8396398B2Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatusTAGUCHI NOBUYUKI·Filed 2012·Granted Mar 12, 2013·19 cites·5 claims
- 1897US7720416B2Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatusRICOH KK·Filed 2005·Granted May 18, 2010·26 cites·23 claims
- 1996US8485653B2Compact front-operable image forming apparatusKATSUYAMA GORO·Filed 2011·Granted Jul 16, 2013·10 cites·7 claims
- 2096US7835675B2Toner container and image forming apparatusRICOH CO LTD·Filed 2006·Granted Nov 16, 2010·17 cites·43 claims
- 2196US7406278B2Powder 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
- 2296US7389071B2Apparatuses for image forming capable of effectively conveying developer therefrom and a method of effectively forming a reinforcing member adhering to the apparatusesRICOH KK·Filed 2005·Granted Jun 17, 2008·32 cites·57 claims
- 2395USRE47086EToner container and image forming apparatusRICOH CO LTD·Filed 2014·Granted Oct 16, 2018·7 cites·26 claims
- 2495US7853183B2Toner container and image forming apparatusRICOH CO LTD·Filed 2006·Granted Dec 14, 2010·13 cites·28 claims
- 2595US7469981B2Compact front-operable image forming apparatusRICOH KK·Filed 2003·Granted Dec 30, 2008·49 cites·19 claims
- 2695US6690901B2Image forming apparatusRICOH KK·Filed 2002·Granted Feb 10, 2004·85 cites·20 claims
- 2794US7747202B2Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatusRICOH KK·Filed 2009·Granted Jun 29, 2010·12 cites·18 claims
- 2894US6304739B1Toner container and image forming apparatus using the sameRICOH KK·Filed 1999·Granted Oct 16, 2001·74 cites·59 claims
- 2993US8264752B2Image reading system and program for reading electronic paper, and image forming apparatus including the image reading systemKATSUYAMA GORO·Filed 2008·Granted Sep 11, 2012·19 cites·20 claims
- 3093US7840167B2Toner container including a gear which is at least partially exposed to an exteriorRICOH CO LTD·Filed 2009·Granted Nov 23, 2010·11 cites·20 claims
- 3193US6549744B2Powder container for an image forming apparatus and powder discharging deviceRICOH KK·Filed 2001·Granted Apr 15, 2003·48 cites·87 claims
- 3292US6785488B2Image formation method, image formation apparatus, computer program, and storage mediumRICOH KK·Filed 2003·Granted Aug 31, 2004·37 cites·33 claims
- 3391US9089064B2Operating section structure, image processing apparatus, and information processing apparatusKATSUYAMA GORO·Filed 2014·Granted Jul 21, 2015·19 cites·10 claims
- 3491US8160461B2Toner container and image forming apparatusTAGUCHI NOBUYUKI·Filed 2010·Granted Apr 17, 2012·4 cites·9 claims
- 3591US7826777B2Toner container and image forming apparatus having first and second biasing elements that bias the toner containerRICOH KK·Filed 2006·Granted Nov 2, 2010·26 cites·18 claims
- 3691US6648218B2Powder container, method of assembling the same and image forming apparatusRICOH KK·Filed 2001·Granted Nov 18, 2003·37 cites·31 claims
- 3791US6519436B2Toner powder container for storing toner applicable to an electrographic image forming apparatus, a method at assembling the same, and a method of reducing the volume of the sameRICOH KK·Filed 2001·Granted Feb 11, 2003·38 cites·45 claims
- 3890US7620349B2Agent containing unit having improved usability, agent refill unit, and image forming apparatusRICOH KK·Filed 2006·Granted Nov 17, 2009·11 cites·27 claims
- 3988US7917055B2Toner container including a toner draining unit and a shutter, and corresponding image forming apparatusRICOH CO LTD·Filed 2009·Granted Mar 29, 2011·6 cites·17 claims
- 4086US8054483B2Image reading system, electronic paper used in the image reading system, and image reading method for handling the electronic paper in the image reading systemRICOH CO LTD·Filed 2007·Granted Nov 8, 2011·9 cites·8 claims
- 4185US8152294B2Compact front-operable image forming apparatusKATSUYAMA GORO·Filed 2008·Granted Apr 10, 2012·5 cites·16 claims
- 4285USD458298SDigital color copying machineRICOH KK·Filed 2001·Granted Jun 4, 2002·32 cites·1 claims
- 4384US10362271B2Video-conference table and video-conference systemKATSUYAMA GORO·Filed 2018·Granted Jul 23, 2019·3 cites·14 claims
- 4484US6532352B2Powder container and image forming apparatus using sameRICOH KK·Filed 2001·Granted Mar 11, 2003·22 cites·41 claims
- 4583US8125655B2Reading device, image forming apparatus, electronic paper, and computer program productKATSUYAMA GORO·Filed 2007·Granted Feb 28, 2012·7 cites·11 claims
- 4683US7302204B2Image forming apparatusRICOH KK·Filed 2003·Granted Nov 27, 2007·18 cites·26 claims
- 4781US7796914B2Powder container having a cylindrical shutterRICOH KK·Filed 2008·Granted Sep 14, 2010·4 cites·22 claims
- 4880USD1046853SDisplayHAMAMURA TOSHIHIRO·Filed 2022·Granted Oct 15, 2024·6 cites·1 claims
- 4980US6647236B2Toner container including foldable case and toner replenishing device using the sameRICOH KK·Filed 2002·Granted Nov 11, 2003·15 cites·29 claims
- 5079US10785378B2Display-and-operation device and image forming apparatusKATSUYAMA GORO·Filed 2019·Granted Sep 22, 2020·2 cites·19 claims
Showing the top 50 of 99 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →