Inventor · disambiguated record
Shigeo Nanno
Also filed as: NANNO SHIGEO
51 granted patents·3 pending applications·179 citations·filing 2001–2024
97Inventor score
Top patents by PatentIndex Score
54 records- 0194US11921448B2Fixing device and image forming apparatus incorporating sameNANNO SHIGEO·Filed 2022·Granted Mar 5, 2024·2 cites·11 claims
- 0293US8089666B2Image forming apparatusANDOH TAKAYUKI·Filed 2008·Granted Jan 3, 2012·21 cites·16 claims
- 0393US7918451B2Switchback mechanism and image forming apparatusRICOH CO LTD·Filed 2008·Granted Apr 5, 2011·14 cites·6 claims
- 0492US11971674B2Heating device, fixing device, and image forming apparatusNANNO SHIGEO·Filed 2022·Granted Apr 30, 2024·2 cites·20 claims
- 0591US8256769B2Feeding device and image forming apparatusTAKAHIRA MASAFUMI·Filed 2011·Granted Sep 4, 2012·10 cites·4 claims
- 0691US7873303B2Upper frame opening and closing mechanism, and image forming apparatus using the sameRICOH CO LTD·Filed 2008·Granted Jan 18, 2011·13 cites·22 claims
- 0790US10078300B2Fixing device and image forming apparatusSAMEI MASAHIRO·Filed 2017·Granted Sep 18, 2018·4 cites·14 claims
- 0890US7751751B2Image forming apparatus and damperRICOH KK·Filed 2008·Granted Jul 6, 2010·11 cites·12 claims
- 0988US7982923B2Image forming apparatusRICOH CO LTD·Filed 2008·Granted Jul 19, 2011·11 cites·5 claims
- 1086US10036987B2Removable fixing device having a convex guide and image forming apparatusNANNO SHIGEO·Filed 2017·Granted Jul 31, 2018·2 cites·14 claims
- 1186US7878725B2Image forming apparatus having removable unitsRICOH CO LTD·Filed 2007·Granted Feb 1, 2011·8 cites·14 claims
- 1283US8107864B2Separating member, fixing device, and image forming apparatusSAITO OSAMU·Filed 2008·Granted Jan 31, 2012·7 cites·13 claims
- 1381US8693936B2Fixing device and image forming apparatus incorporating sameNANNO SHIGEO·Filed 2012·Granted Apr 8, 2014·3 cites·11 claims
- 1480US9063486B2Fixing device and image forming apparatusNANNO SHIGEO·Filed 2013·Granted Jun 23, 2015·2 cites·20 claims
- 1578US8070159B2Switchback mechanism and image forming apparatusHONDA HARUYUKI·Filed 2011·Granted Dec 6, 2011·2 cites·17 claims
- 1677US9158270B2Fixing device, image forming apparatus with same, and method of smoothly detaching and attaching fixing device from and to image forming apparatusNANNO SHIGEO·Filed 2013·Granted Oct 13, 2015·2 cites·20 claims
- 1777US9008559B2Fixing device with mechanism capable of heating belt effectively and image forming apparatus incorporating sameADACHI TOMOYA·Filed 2012·Granted Apr 14, 2015·2 cites·19 claims
- 1877US7764905B2Assist members for an openable structure of an image forming apparatusRICOH KK·Filed 2007·Granted Jul 27, 2010·5 cites·19 claims
- 1976US12147180B2Heating device, fixing device, and image forming apparatus including conductor supportFURUICHI YUUSUKE·Filed 2023·Granted Nov 19, 2024·0 cites·20 claims
- 2076US7890017B2Fixing device and image forming apparatusRICOH CO LTD·Filed 2008·Granted Feb 15, 2011·5 cites·16 claims
- 2175US7731182B2Sliding mechanism, sheet guide, sheet loading device, and image forming apparatusRICOH KK·Filed 2007·Granted Jun 8, 2010·5 cites·12 claims
- 2274US8498560B2Fixing device and image forming apparatus using this fixing deviceSAKAYA KOHTA·Filed 2008·Granted Jul 30, 2013·4 cites·17 claims
- 2373US12353159B2Fixing device and image forming apparatusOKAMOTO JUN·Filed 2024·Granted Jul 8, 2025·0 cites·7 claims
- 2473US7062196B2Duplex image forming device having a reversible transportation unit inserted into an image forming deviceMURATA MACHINERY LTD·Filed 2003·Granted Jun 13, 2006·14 cites·29 claims
- 2572US2025258452A1Heating device, fixing device, and image forming apparatusFURUICHI YUUSUKE·Filed 2023·Application pending·0 cites
- 2671US12498659B2Heating device, frame device, and image forming apparatusNANNO SHIGEO·Filed 2024·Granted Dec 16, 2025·0 cites·15 claims
- 2771US6970272B2Duplex automatic document feederMURATA MACHINERY LTD·Filed 2001·Granted Nov 29, 2005·11 cites·11 claims
- 2870US8364061B2Fixing device and image forming apparatusRICOH CO LTD·Filed 2008·Granted Jan 29, 2013·3 cites·17 claims
- 2969US12117749B2Fixing device and image forming apparatus incorporating sameNANNO SHIGEO·Filed 2023·Granted Oct 15, 2024·0 cites·20 claims
- 3069US9052652B2Fixing device including a friction reducer and an image forming apparatus including the fixing deviceFUJII TOMOHIKO·Filed 2013·Granted Jun 9, 2015·1 cites·20 claims
- 3168US8095041B2Fixing device and image forming apparatusNANNO SHIGEO·Filed 2008·Granted Jan 10, 2012·3 cites·17 claims
- 3267US12372903B2Fixing device and image forming apparatusIKEBUCHI YUTAKA·Filed 2024·Granted Jul 29, 2025·0 cites·16 claims
- 3366US12339604B2Fixing device and image forming apparatus including a pivot restrictor to restrict pivoting of a conductive memberTAKAGI HIROMASA·Filed 2024·Granted Jun 24, 2025·0 cites·20 claims
- 3465US8045888B2Sheet conveying device and image forming apparatusRICOH CO LTD·Filed 2006·Granted Oct 25, 2011·2 cites·18 claims
- 3564US11204570B2Contact-separation mechanism, fixing device, and image forming apparatusRICOH CO LTD·Filed 2019·Granted Dec 21, 2021·0 cites·7 claims
- 3662US11982960B2Heating device, fixing device, and image forming apparatusNANNO SHIGEO·Filed 2022·Granted May 14, 2024·0 cites·19 claims
- 3762US11435683B2Heating device, fixing device, and image forming apparatusNANNO SHIGEO·Filed 2021·Granted Sep 6, 2022·0 cites·11 claims
- 3862US7181157B2Duplex image forming device and reversible transportation unitMURATA MACHINERY LTD·Filed 2003·Granted Feb 20, 2007·8 cites·11 claims
- 3959US7954814B2Feeding device and image forming apparatusRICOH CO LTD·Filed 2008·Granted Jun 7, 2011·1 cites·11 claims
- 4058US11687020B2Heating device, fixing device, and image forming apparatusIMADA TAKAHIRO·Filed 2021·Granted Jun 27, 2023·0 cites·11 claims
- 4157US9429891B2Fixing device and image forming apparatusRICOH CO LTD·Filed 2015·Granted Aug 30, 2016·0 cites·8 claims
- 4255US8320798B2Sheet conveying device and image forming apparatusNANNO SHIGEO·Filed 2011·Granted Nov 27, 2012·0 cites·16 claims
- 4354US8102545B2Image forming apparatusNANNO SHIGEO·Filed 2007·Granted Jan 24, 2012·1 cites·36 claims
- 4451US7784780B2Manual sheet-feeding device and image forming apparatusRICOH KK·Filed 2007·Granted Aug 31, 2010·0 cites·11 claims
- 4550US9182709B2Fixing device, image forming apparatus with same, and method of assembling fixing deviceNAITOH YUTAKA·Filed 2013·Granted Nov 10, 2015·0 cites·20 claims
- 4650US9046843B2Fixing device and image forming apparatusFUJII TOMOHIKO·Filed 2013·Granted Jun 2, 2015·0 cites·20 claims
- 4750US7963520B2Sheet loading device, sheet conveying device, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Jun 21, 2011·0 cites·19 claims
- 4848US8678371B2Manual sheet-feeding device and image forming apparatusNANNO SHIGEO·Filed 2010·Granted Mar 25, 2014·0 cites·14 claims
- 4947US8509653B2Fixing device and image forming apparatusNANNO SHIGEO·Filed 2010·Granted Aug 13, 2013·0 cites·17 claims
- 5047US2007285701A1Job status notifying image forming apparatusOHTA YOSHIHIDE·Filed 2007·Application pending·0 cites
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →