Inventor
NANNO SHIGEO
JP52 patents
⚠️ This page may combine multiple inventors who share the name “NANNO SHIGEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NANNO SHIGEO
16 patentsUS11921448B2Mar 5, 2024
Fixing device and image forming apparatus incorporating same
NANNO SHIGEO2 citations73
US10036987B2Jul 31, 2018
Removable fixing device having a convex guide and image forming apparatus
NANNO SHIGEO2 citations73
US11971674B2Apr 30, 2024
Heating device, fixing device, and image forming apparatus
NANNO SHIGEO2 citations72
US12498659B2Dec 16, 2025
Heating device, frame device, and image forming apparatus
NANNO SHIGEO0 citations62
US12117749B2Oct 15, 2024
Fixing device and image forming apparatus incorporating same
NANNO SHIGEO0 citations62
US11435683B2Sep 6, 2022
Heating device, fixing device, and image forming apparatus
NANNO SHIGEO0 citations62
US9158270B2Oct 13, 2015
Fixing device, image forming apparatus with same, and method of smoothly detaching and attaching fixing device from and to image forming apparatus
NANNO SHIGEO2 citations62
US9063486B2Jun 23, 2015
Fixing device and image forming apparatus
NANNO SHIGEO2 citations62
US8693936B2Apr 8, 2014
Fixing device and image forming apparatus incorporating same
NANNO SHIGEO3 citations62
US8095041B2Jan 10, 2012
Fixing device and image forming apparatus
NANNO SHIGEO3 citations60
US11982960B2May 14, 2024
Heating device, fixing device, and image forming apparatus
NANNO SHIGEO0 citations52
US8678371B2Mar 25, 2014
Manual sheet-feeding device and image forming apparatus
NANNO SHIGEO0 citations52
US8509653B2Aug 13, 2013
Fixing device and image forming apparatus
NANNO SHIGEO0 citations52
US8320798B2Nov 27, 2012
Sheet conveying device and image forming apparatus
NANNO SHIGEO0 citations52
US8102545B2Jan 24, 2012
Image forming apparatus
NANNO SHIGEO1 citations50
US9207573B2Dec 8, 2015
Image forming apparatus and method
NANNO SHIGEO0 citations41
RICOH CO LTD
12 patentsUS7982923B2Jul 19, 2011
Image forming apparatus
RICOH CO LTD11 citations84
US7918451B2Apr 5, 2011
Switchback mechanism and image forming apparatus
RICOH CO LTD14 citations84
US7878725B2Feb 1, 2011
Image forming apparatus having removable units
RICOH CO LTD8 citations84
US7873303B2Jan 18, 2011
Upper frame opening and closing mechanism, and image forming apparatus using the same
RICOH CO LTD13 citations84
US8364061B2Jan 29, 2013
Fixing device and image forming apparatus
RICOH CO LTD3 citations63
US8045888B2Oct 25, 2011
Sheet conveying device and image forming apparatus
RICOH CO LTD2 citations63
US11204570B2Dec 21, 2021
Contact-separation mechanism, fixing device, and image forming apparatus
RICOH CO LTD0 citations62
US7890017B2Feb 15, 2011
Fixing device and image forming apparatus
RICOH CO LTD5 citations61
US9429891B2Aug 30, 2016
Fixing device and image forming apparatus
RICOH CO LTD0 citations52
US7963520B2Jun 21, 2011
Sheet loading device, sheet conveying device, and image forming apparatus
RICOH CO LTD0 citations52
US7954814B2Jun 7, 2011
Feeding device and image forming apparatus
RICOH CO LTD1 citations52
US8385803B2Feb 26, 2013
Belt-type fixing device and image forming apparatus capable of maintaining prescribed tension of belt
RICOH CO LTD0 citations42
RICOH KK
4 patentsUS7751751B2Jul 6, 2010
Image forming apparatus and damper
RICOH KK11 citations84
US7731182B2Jun 8, 2010
Sliding mechanism, sheet guide, sheet loading device, and image forming apparatus
RICOH KK5 citations63
US7764905B2Jul 27, 2010
Assist members for an openable structure of an image forming apparatus
RICOH KK5 citations61
US7784780B2Aug 31, 2010
Manual sheet-feeding device and image forming apparatus
RICOH KK0 citations52
MURATA MACHINERY LTD
3 patentsUS7062196B2Jun 13, 2006
Duplex image forming device having a reversible transportation unit inserted into an image forming device
MURATA MACHINERY LTD14 citations84
US7181157B2Feb 20, 2007
Duplex image forming device and reversible transportation unit
MURATA MACHINERY LTD8 citations74
US6970272B2Nov 29, 2005
Duplex automatic document feeder
MURATA MACHINERY LTD11 citations74
ANDOH TAKAYUKI
1 patentSAITO OSAMU
1 patentTAKAHIRA MASAFUMI
1 patentSAMEI MASAHIRO
1 patentOKAMOTO JUN
1 patentADACHI TOMOYA
1 patentSAKAYA KOHTA
1 patentHONDA HARUYUKI
1 patentIMADA TAKAHIRO
1 patentIKEBUCHI YUTAKA
1 patentFURUICHI YUUSUKE
1 patentTAKAGI HIROMASA
1 patentFUJII TOMOHIKO
1 patentWATANABE NATSUKI
1 patentNAITOH YUTAKA
1 patentShowing the top 50 of 52 patents by PatentIndex Score.