Inventor · disambiguated record
Yasuyoshi Hayakawa
Also filed as: HAYAKAWA YASUYOSHI
44 granted patents·1 pending application·1,428 citations·filing 1989–2011
99Inventor score
Top patents by PatentIndex Score
45 records- 0199US6581922B2Sheet processing apparatus above image forming means and image forming apparatusCANON KK·Filed 2001·Granted Jun 24, 2003·100 cites·16 claims
- 0298US6733007B2Sheet material conveying device; image forming apparatus and sheet processing deviceCANON KK·Filed 2002·Granted May 11, 2004·87 cites·28 claims
- 0398US6722646B2Sheet treating apparatus and image forming apparatusCANON KK·Filed 2003·Granted Apr 20, 2004·121 cites·12 claims
- 0498US6561503B1Sheet processing device with stack alignmentCANON KK·Filed 2000·Granted May 13, 2003·82 cites·6 claims
- 0597US6382616B1Aligning device for sheet finisherCANON KK·Filed 2000·Granted May 7, 2002·68 cites·19 claims
- 0697US6318718B1Image forming apparatus and sheet stacking device with lifterCANON KK·Filed 2000·Granted Nov 20, 2001·57 cites·9 claims
- 0797US4873548AImage forming apparatus comprising a main assembly having a top frame adapted to swing open and closed with respect to a bottom frame and having process cartridge detachably mounted in the main assemblyCANON KK·Filed 1989·Granted Oct 10, 1989·68 cites·18 claims
- 0896US6302606B1Sheet receiving/stacking device, and image forming apparatus having the sameCANON KK·Filed 2000·Granted Oct 16, 2001·54 cites·21 claims
- 0996US5155537ASheet feeding apparatus with a plurality of easily loaded cassettesCANON KK·Filed 1989·Granted Oct 13, 1992·53 cites·34 claims
- 1095US6382614B1Sheet processing apparatus and image forming apparatusCANON KK·Filed 2000·Granted May 7, 2002·56 cites·16 claims
- 1194US7226050B2Discharge sheet stacking apparatus and image forming apparatus provided with the sameCANON KK·Filed 2005·Granted Jun 5, 2007·16 cites·8 claims
- 1294US6942206B2Sheet treating apparatus and image forming apparatus having the sameCANON KK·Filed 2002·Granted Sep 13, 2005·43 cites·15 claims
- 1394US6325371B1Sheet conveying apparatus with conveying path changing device and sorterCANON KK·Filed 1999·Granted Dec 4, 2001·58 cites·22 claims
- 1494US5579098AImage forming apparatus with removeable fixing unitCANON KK·Filed 1994·Granted Nov 26, 1996·60 cites·33 claims
- 1593US5292116ASheet feeding apparatusCANON KK·Filed 1992·Granted Mar 8, 1994·52 cites·27 claims
- 1693US4888620AProcess cartridge and image forming apparatus using the sameCANON KK·Filed 1989·Granted Dec 19, 1989·48 cites·17 claims
- 1792US7913996B2Sheet feeding apparatus and image forming apparatusCANON KK·Filed 2006·Granted Mar 29, 2011·13 cites·10 claims
- 1892US6973285B2Discharge sheet stacking apparatus and image forming apparatus provided with the sameCANON KK·Filed 2003·Granted Dec 6, 2005·29 cites·22 claims
- 1991US6735415B2Sheet postprocessing apparatus and image forming apparatusCANON KK·Filed 2003·Granted May 11, 2004·29 cites·24 claims
- 2091US6674976B2Sheet post-processing device, image forming apparatus having the device and error handling method thereforCANON KK·Filed 2002·Granted Jan 6, 2004·32 cites·49 claims
- 2187US6661995B2Sheet processing apparatus and image forming apparatus provided with the sameCANON KK·Filed 2002·Granted Dec 9, 2003·28 cites·14 claims
- 2286US6341772B1In line rotatable stapling deviceCANON KK·Filed 1998·Granted Jan 29, 2002·39 cites·26 claims
- 2385US6352253B1Discharged sheet stacking apparatus and image forming apparatus having such stacking apparatusCANON KK·Filed 1999·Granted Mar 5, 2002·34 cites·8 claims
- 2483US7448619B2Image processing apparatusCANON KK·Filed 2007·Granted Nov 11, 2008·6 cites·6 claims
- 2582US5383655ASheet feeding apparatusCANON KK·Filed 1993·Granted Jan 24, 1995·27 cites·18 claims
- 2681US7341248B2Sheet processing apparatus and image forming apparatusCANON KK·Filed 2005·Granted Mar 11, 2008·6 cites·14 claims
- 2780US8262084B2Sheet feeding apparatus and image forming apparatus with sheet feeding cassette and associated locking meansNISHIKATA KAZUSHI·Filed 2011·Granted Sep 11, 2012·4 cites·4 claims
- 2878US6733008B2Sheet conveying apparatus, and image forming apparatus and image reading apparatus having the sheet conveying apparatusCANON KK·Filed 2001·Granted May 11, 2004·15 cites·8 claims
- 2978US6637996B1Bookbinding apparatus, adhesive cartridge, and image forming apparatusCANON KK·Filed 2000·Granted Oct 28, 2003·20 cites·11 claims
- 3074US6534761B2Image reader with a closed-state detector and image forming apparatus using sameCANON KK·Filed 2001·Granted Mar 18, 2003·11 cites·1 claims
- 3172US5465141AFixing apparatus for changing the duty cycle of electric current supplyCANON KK·Filed 1992·Granted Nov 7, 1995·18 cites·7 claims
- 3271US6930805B2Image reading apparatusCANON KK·Filed 2001·Granted Aug 16, 2005·10 cites·3 claims
- 3371US5348284ASheet supply apparatusCANON KK·Filed 1993·Granted Sep 20, 1994·20 cites·16 claims
- 3470US7022972B2Image reader with a closed-state detector and image forming apparatus using sameCANON KK·Filed 2002·Granted Apr 4, 2006·8 cites·7 claims
- 3569US6206369B1SorterCANON KK·Filed 1997·Granted Mar 27, 2001·19 cites·30 claims
- 3666US7267338B2Image processing apparatusCANON KK·Filed 2004·Granted Sep 11, 2007·8 cites·9 claims
- 3763US6917451B2Image reading apparatusCANON KK·Filed 2001·Granted Jul 12, 2005·5 cites·6 claims
- 3862US7607651B2Sheet processing apparatus and image forming apparatusCANON KK·Filed 2007·Granted Oct 27, 2009·1 cites·5 claims
- 3961US7077395B2Sheet after-treatment device and image forming apparatus equipped with the deviceCANON KK·Filed 2003·Granted Jul 18, 2006·6 cites·24 claims
- 4060US7630681B2Sheet processing apparatus and image forming apparatusCANON KK·Filed 2008·Granted Dec 8, 2009·1 cites·14 claims
- 4159US7386271B2Sheet processing apparatus and image forming apparatusCANON KK·Filed 2005·Granted Jun 10, 2008·1 cites·23 claims
- 4254US7216863B2Sheet processing apparatus above image forming means and image forming apparatusCANON KK·Filed 2003·Granted May 15, 2007·3 cites·27 claims
- 4347US6286830B1Sheet material stacking device and image forming apparatus having sameCANON KK·Filed 1999·Granted Sep 11, 2001·7 cites·13 claims
- 4440US2006237895A1Sheet feeding apparatus and image forming apparatusCANON KK·Filed 2006·Application pending·0 cites
- 4535US5603618AMounting board unit attaching/detaching deviceCANON KK·Filed 1994·Granted Feb 18, 1997·5 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →