Inventor · disambiguated record
Ken Murooka
Also filed as: MUROOKA KEN · MUROOKA KEN-ICHI
38 granted patents·2 pending applications·734 citations·filing 1992–2023
98Inventor score
Top patents by PatentIndex Score
40 records- 0198US6084622AFrame structure and an image forming apparatus using such a frame structureCANON KK·Filed 1997·Granted Jul 4, 2000·171 cites·40 claims
- 0295US8447208B2Image forming apparatusFUJITA KEISUKE·Filed 2012·Granted May 21, 2013·13 cites·10 claims
- 0394US5634178AGear unit, image forming apparatus and gear unit mounting methodCANON KK·Filed 1996·Granted May 27, 1997·79 cites·56 claims
- 0494US5561496AImage forming apparatus, assembling method of image forming apparatus, and mounting method of outer casingCANON KK·Filed 1994·Granted Oct 1, 1996·52 cites·44 claims
- 0594US5559581AImage forming apparatus with helical gear drive trainCANON KK·Filed 1994·Granted Sep 24, 1996·56 cites·28 claims
- 0693US9395674B2Curl correction apparatus, sheet conveying apparatus, and image forming apparatusCANON KK·Filed 2014·Granted Jul 19, 2016·8 cites·22 claims
- 0791US9075386B2Image forming apparatus with a curl correcting unitCANON KK·Filed 2013·Granted Jul 7, 2015·6 cites·12 claims
- 0891US8909088B2Fixing apparatus and image forming apparatus equipped with an air duct for guiding airMUROOKA KEN·Filed 2012·Granted Dec 9, 2014·11 cites·16 claims
- 0991US5537195ASheet-accommodating cassette with main container and sub containerCANON KK·Filed 1993·Granted Jul 16, 1996·46 cites·18 claims
- 1090US9400462B2Image forming apparatusCANON KK·Filed 2016·Granted Jul 26, 2016·3 cites·14 claims
- 1190US8855516B2Image forming apparatus including air blowing member configured to blow air toward a pressing member forming a nip portion with a fixing memberCANON KK·Filed 2012·Granted Oct 7, 2014·6 cites·12 claims
- 1289US9280101B2Image forming apparatus with lower and upper guide membersCANON KK·Filed 2014·Granted Mar 8, 2016·3 cites·16 claims
- 1388US9081358B2Fixing apparatus, and image forming apparatus equipped with fixing apparatusCANON KK·Filed 2014·Granted Jul 14, 2015·4 cites·16 claims
- 1487US6583389B2Image heating apparatus, heater for heating image and manufacturing method thereofCANON KK·Filed 2001·Granted Jun 24, 2003·42 cites·19 claims
- 1587US5166962AX-ray mask, method of manufacturing the same, and exposure method using the sameTOSHIBA KK·Filed 1992·Granted Nov 24, 1992·49 cites·15 claims
- 1683US9429886B2Image forming apparatus having fixing device and blower for the fixing deviceCANON KK·Filed 2014·Granted Aug 30, 2016·2 cites·9 claims
- 1780US9904222B2Image forming apparatus with plurality of ribs on guide to fixing nipCANON KK·Filed 2016·Granted Feb 27, 2018·1 cites·7 claims
- 1880US5621451AImage forming apparatusCANON KK·Filed 1993·Granted Apr 15, 1997·27 cites·122 claims
- 1977US12248260B2Image forming apparatusCANON KK·Filed 2023·Granted Mar 11, 2025·0 cites·16 claims
- 2077US10031476B2Image forming apparatus having fixing device and blower for the fixing deviceCANON KK·Filed 2016·Granted Jul 24, 2018·1 cites·9 claims
- 2175US6404481B1Adaptive lithography membrane masksUNIV LOUISIANA STATE·Filed 2000·Granted Jun 11, 2002·14 cites·19 claims
- 2275US5923034APattern transfer mask, mask inspection method and a mask inspection apparatusTOSHIBA KK·Filed 1997·Granted Jul 13, 1999·27 cites·18 claims
- 2374US11803139B2Image forming apparatusCANON KK·Filed 2022·Granted Oct 31, 2023·0 cites·18 claims
- 2474US11506999B2Image forming apparatusCANON KK·Filed 2021·Granted Nov 22, 2022·0 cites·9 claims
- 2574US10955774B2Image forming apparatusCANON KK·Filed 2019·Granted Mar 23, 2021·0 cites·8 claims
- 2674US6518546B2Heater having electronically conductive board and image heating apparatus using heaterCANON KK·Filed 2001·Granted Feb 11, 2003·18 cites·11 claims
- 2773US9557702B2Image forming apparatus with curl correcting unitCANON KK·Filed 2015·Granted Jan 31, 2017·1 cites·14 claims
- 2870US5290021ASheet feeding apparatusCANON KK·Filed 1993·Granted Mar 1, 1994·17 cites·30 claims
- 2968US7194222B2Image forming apparatus which cools an image forming cartridgeCANON KK·Filed 2004·Granted Mar 20, 2007·10 cites·6 claims
- 3067US10551774B2Image forming apparatus with guide member movable with repect to direction perpendiclar to recording material surfaceCANON KK·Filed 2018·Granted Feb 4, 2020·0 cites·10 claims
- 3166US7177566B2Main frame construction for an image forming apparatusCANON KK·Filed 2004·Granted Feb 13, 2007·10 cites·14 claims
- 3265US10481552B2Fixing device having a perforated ductCANON KK·Filed 2018·Granted Nov 19, 2019·0 cites·7 claims
- 3365US6248508B1Manufacturing a circuit elementTOSHIBA KK·Filed 1998·Granted Jun 19, 2001·24 cites·28 claims
- 3462US5291536AX-ray mask, method for fabricating the same, and pattern formation methodTOSHIBA KK·Filed 1992·Granted Mar 1, 1994·16 cites·12 claims
- 3557US6028317ACharged particle beam optical element charged particle beam exposure apparatus and method of adjusting the sameTOSHIBA KK·Filed 1998·Granted Feb 22, 2000·12 cites·51 claims
- 3652US8190057B2Image forming apparatus having a main assembly, a cartridge detachably mountable to the main assembly, and a fixing unit detachably mountable to the main assemblyFUJITA KEISUKE·Filed 2010·Granted May 29, 2012·0 cites·4 claims
- 3740US6909494B2Image forming apparatusCANON KK·Filed 2004·Granted Jun 21, 2005·1 cites·14 claims
- 3838US5761574AImage forming apparatusCANON KK·Filed 1997·Granted Jun 2, 1998·4 cites·11 claims
- 3934US2011311269A1Image forming apparatusMUROOKA KEN·Filed 2011·Application pending·0 cites
- 4034US2003077092A1Image heating apparatusCANON KK·Filed 2002·Application pending·0 cites
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