Inventor · disambiguated record
Naohiro Kikkawa
Also filed as: ANDOH RIKA · KIKKAWA NAOHIRO
56 granted patents·4 pending applications·628 citations·filing 2003–2012
99Inventor score
Top patents by PatentIndex Score
60 records- 0199US7416177B2Sheet folding apparatus, sheet processing apparatus and image forming apparatusRICOH KK·Filed 2005·Granted Aug 26, 2008·60 cites·21 claims
- 0299US6905118B2Sheet finisher and image forming system using the sameRICOH KK·Filed 2003·Granted Jun 14, 2005·127 cites·172 claims
- 0397US7410158B2Image forming apparatus and methodRICOH KK·Filed 2007·Granted Aug 12, 2008·24 cites·6 claims
- 0496US8191882B2Spine formation device, post-processing apparatus, and spine formation systemKIKKAWA NAOHIRO·Filed 2010·Granted Jun 5, 2012·17 cites·18 claims
- 0596US8162306B2Sheet aligning apparatus, sheet processing apparatus, and image forming apparatusSUZUKI NOBUYOSHI·Filed 2009·Granted Apr 24, 2012·21 cites·16 claims
- 0695US7798950B2Sheet finisher, image forming apparatus, and sheet processing methodRICOH KK·Filed 2008·Granted Sep 21, 2010·19 cites·18 claims
- 0795US7413181B2Method and apparatus for image forming capable of effectively performing sheet finishing operationRICOH KK·Filed 2005·Granted Aug 19, 2008·20 cites·20 claims
- 0895US7407155B2Sheet finisher with a punching unitRICOH KK·Filed 2006·Granted Aug 5, 2008·15 cites·11 claims
- 0992US8424859B2Creasing apparatus and image forming systemISHIKAWA NAOYUKI·Filed 2011·Granted Apr 23, 2013·10 cites·12 claims
- 1092US8186663B2Spine formation device, saddle-stitch bookbinding apparatus, sheet-edge cutting apparatus, sheet processing apparatus, and image forming apparatusSUZUKI NOBUYOSHI·Filed 2010·Granted May 29, 2012·7 cites·8 claims
- 1192US8109495B2Spine formation device, post-processing apparatus, and bookbinding systemKIKKAWA NAOHIRO·Filed 2010·Granted Feb 7, 2012·12 cites·10 claims
- 1292US7546081B2Paper finisher having paper perforating apparatus, and image forming apparatus equipped with paper perforating apparatus and paper finisherRICOH KK·Filed 2005·Granted Jun 9, 2009·13 cites·19 claims
- 1392US7306214B2Paper handling apparatusRICOH KK·Filed 2004·Granted Dec 11, 2007·32 cites·12 claims
- 1491US7681881B2Sheet aligning device and image forming apparatusRICOH KK·Filed 2008·Granted Mar 23, 2010·13 cites·17 claims
- 1590US7458567B2Sheet finisher and image forming system using the sameRICOH KK·Filed 2006·Granted Dec 2, 2008·9 cites·18 claims
- 1689US8413974B2Creasing device and image forming systemSHIBASAKI YUUSUKE·Filed 2011·Granted Apr 9, 2013·5 cites·8 claims
- 1789US7922163B2Sheet processing device and image forming apparatusRICOH CO LTD·Filed 2008·Granted Apr 12, 2011·11 cites·8 claims
- 1889US7137625B2Sheet finisher including means for setting cutting position image forming system including the sheet finisherRICOH KK·Filed 2003·Granted Nov 21, 2006·29 cites·23 claims
- 1988US8387964B2Creasing device and image forming systemSAITO TAKASHI·Filed 2011·Granted Mar 5, 2013·7 cites·12 claims
- 2088US8282091B2Spine formation device, bookbinding system, and spine formation methodFURUHASHI TOMOHIRO·Filed 2010·Granted Oct 9, 2012·5 cites·10 claims
- 2188US8191885B2Home-position detecting method, sheet processing device, and image forming apparatusHATTORI HITOSHI·Filed 2008·Granted Jun 5, 2012·11 cites·11 claims
- 2288US7744076B2Sheet folding apparatus, sheet processing apparatus and image forming apparatusRICOH KK·Filed 2008·Granted Jun 29, 2010·9 cites·13 claims
- 2387US8465012B2Creasing device and image forming systemISHIKAWA NAOYUKI·Filed 2011·Granted Jun 18, 2013·7 cites·10 claims
- 2487US8419003B2Creasing device and image forming systemKOJIMA HIDETOSHI·Filed 2011·Granted Apr 16, 2013·7 cites·7 claims
- 2587US8220791B2Spine formation device, bookbinding system, and control method thereforSUZUKI NOBUYOSHI·Filed 2010·Granted Jul 17, 2012·7 cites·11 claims
- 2687US7802789B2Sheet conveying device, sheet punching device, sheet processing device, image forming apparatus, and method for determining mounting state of measuring unitRICOH KK·Filed 2009·Granted Sep 28, 2010·9 cites·18 claims
- 2786US8240654B2Spine formation device, post-processing apparatus, and spine formation systemASAMI SHINJI·Filed 2010·Granted Aug 14, 2012·4 cites·13 claims
- 2884US7905473B2Sheet creaser including a cam guided pressing unitRICOH CO LTD·Filed 2009·Granted Mar 15, 2011·8 cites·10 claims
- 2984US7798480B2Sheet processing apparatus and sheet conveyance methodRICOH KK·Filed 2007·Granted Sep 21, 2010·8 cites·9 claims
- 3083US8528891B2Creasing device and image forming systemAIBA GO·Filed 2011·Granted Sep 10, 2013·7 cites·4 claims
- 3182US8480069B2Sheet processing apparatus and image forming systemSHIBASAKI YUUSUKE·Filed 2011·Granted Jul 9, 2013·5 cites·9 claims
- 3282US7896341B2Sheet conveying device, sheet finisher, sheet feeding device, image forming apparatus, and sheet conveying methodRICOH CO LTD·Filed 2008·Granted Mar 1, 2011·9 cites·17 claims
- 3382US7661669B2Sheet post-processing apparatus, image forming apparatus, and image forming systemRICOH KK·Filed 2008·Granted Feb 16, 2010·7 cites·11 claims
- 3482US7487964B2Sheet finisher for an image forming apparatusRICOH KK·Filed 2005·Granted Feb 10, 2009·7 cites·19 claims
- 3581US8490957B2Creasing apparatus and image forming systemNAGASAKO SHUUYA·Filed 2011·Granted Jul 23, 2013·6 cites·13 claims
- 3681US8322701B2Image forming apparatusHATTORI HITOSHI·Filed 2010·Granted Dec 4, 2012·6 cites·7 claims
- 3780US7527254B2Sheet finisher with a punching unitRICOH KK·Filed 2005·Granted May 5, 2009·3 cites·10 claims
- 3879US8256758B2Bookbinding system, bookbinding method, and bookbinding control programKOBAYASHI KAZUHIRO·Filed 2010·Granted Sep 4, 2012·4 cites·18 claims
- 3978US8286958B2Spine formation device, post-processing apparatus, spine formation system, and spine formation methodSUZUKI NOBUYOSHI·Filed 2010·Granted Oct 16, 2012·4 cites·13 claims
- 4076US8474807B2Conveying device, spine forming device, and image forming systemASAMI SHINJI·Filed 2012·Granted Jul 2, 2013·3 cites·9 claims
- 4175US7950641B2Sheet creaser, sheet conveyer, sheet finisher, and image forming apparatusRICOH CO LTD·Filed 2008·Granted May 31, 2011·5 cites·13 claims
- 4274US7934714B2Sheet post-processing apparatus, image forming apparatus, and image forming systemRICOH CO LTD·Filed 2008·Granted May 3, 2011·4 cites·15 claims
- 4371US8313098B2Paper transport device, paper processing apparatus, and image forming apparatus with paper-jamming detection unitHATTORI HITOSHI·Filed 2008·Granted Nov 20, 2012·4 cites·24 claims
- 4471US8011281B2Punching device, conveying device, finishing device, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Sep 6, 2011·4 cites·17 claims
- 4571US7822378B2Sheet finisher and image forming system using the sameRICOH KK·Filed 2006·Granted Oct 26, 2010·4 cites·15 claims
- 4670US9102116B2Sheet creaser, sheet finisher, image forming apparatus, sheet folding method, and computer program productSUZUKI NOBUYOSHI·Filed 2009·Granted Aug 11, 2015·4 cites·10 claims
- 4769US8002274B2Sheet stacking device, drive control method, and computer program productRICOH CO LTD·Filed 2009·Granted Aug 23, 2011·3 cites·18 claims
- 4869US7954800B2Openable sheet processing deviceRICOH CO LTD·Filed 2008·Granted Jun 7, 2011·3 cites·16 claims
- 4968US8413976B2Image forming system, sheet finisher, and folding methodHATTORI HITOSHI·Filed 2011·Granted Apr 9, 2013·2 cites·10 claims
- 5067US8333371B2Creasing device and image forming systemKIKKAWA NAOHIRO·Filed 2010·Granted Dec 18, 2012·2 cites·8 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →