Inventor
NAKAI HIROSHI
JP127 patents
⚠️ This page may combine multiple inventors who share the name “NAKAI HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
20 patentsUS6468706B2Oct 22, 2002
Two-component developer, container filled with the two-component developer, and image formation apparatus
RICOH KK130 citations99
US6699632B2Mar 2, 2004
Image forming toner, and image forming method and image forming apparatus using the toner
RICOH KK72 citations98
US6667141B2Dec 23, 2003
Image forming method and apparatus
RICOH KK98 citations98
US6030736AFeb 29, 2000
Electrophotographic photoconductor with polysiloxane mixture
RICOH KK87 citations97
US7103301B2Sep 5, 2006
Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged
RICOH KK47 citations96
US6593048B2Jul 15, 2003
Two-component developer, and image forming apparatus and image forming method using the developer
RICOH KK97 citations96
US6544704B1Apr 8, 2003
Two-component developer, container filled with the two-component developer, and image formation apparatus
RICOH KK59 citations96
US7653339B2Jan 26, 2010
Protective agent, image forming apparatus, and process cartridge
RICOH KK18 citations93
US6911289B2Jun 28, 2005
Toner, method for manufacturing the toner, and image forming method and apparatus using the toner
RICOH KK26 citations93
US6856781B2Feb 15, 2005
Image forming apparatus and method of developing an electrostatic latent image
RICOH KK25 citations93
US6813461B2Nov 2, 2004
Toner, method for manufacturing the toner, and image forming method and apparatus using the toner
RICOH KK26 citations93
US6811944B2Nov 2, 2004
Toner, method for manufacturing the toner, and image forming method and apparatus using the toner
RICOH KK36 citations93
US7620336B2Nov 17, 2009
Apparatus and method for fixing an image
RICOH KK21 citations92
US7383013B2Jun 3, 2008
Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged
RICOH KK18 citations92
US7251437B2Jul 31, 2007
Image formation apparatus having a body to be charged with specified properties and including the use of a protective material
RICOH KK44 citations92
US7212753B2May 1, 2007
Image forming apparatus and process cartridge
RICOH KK23 citations92
US7029816B2Apr 18, 2006
Electrographic image formation method
RICOH KK20 citations92
US6790575B2Sep 14, 2004
Two-component developer, image forming apparatus, and image forming method
RICOH KK43 citations92
US7251438B2Jul 31, 2007
Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged
RICOH KK8 citations74
US6816695B2Nov 9, 2004
Method and device for development for an image forming apparatus
RICOH KK8 citations74
SANSHIN KOGYO KK
8 patentsUS5827455AOct 27, 1998
Engine choke control
SANSHIN KOGYO KK32 citations93
US5488939AFeb 6, 1996
Crankcase ventilation system for outboard motor
SANSHIN KOGYO KK26 citations92
US5476402ADec 19, 1995
Intake and exhaust structure for V-type engine
SANSHIN KOGYO KK39 citations92
US5514015AMay 7, 1996
Breather structure for outboard motor
SANSHIN KOGYO KK25 citations90
US5637792AJun 10, 1997
Exhaust gas sampler
SANSHIN KOGYO KK31 citations87
US5524596AJun 11, 1996
Mounting arrangement for engine components of an outboard motor
SANSHIN KOGYO KK7 citations74
US5517977AMay 21, 1996
Mounting arrangement for engine components of an outboard motor
SANSHIN KOGYO KK7 citations74
US5086734AFeb 11, 1992
Cylinder sleeve for two-cycle engine
SANSHIN KOGYO KK18 citations74
CANON KK
7 patentsUS6523933B1Feb 25, 2003
Media cartridge and image recording apparatus with detachably mountable media cartridge
CANON KK35 citations93
US5777634AJul 7, 1998
Apparatus or instrument including scanning type functional element
CANON KK31 citations92
US5364195ANov 15, 1994
Sheet conveying apparatus with displaceable guide between cassette and feed roller
CANON KK33 citations92
US10493762B2Dec 3, 2019
Inkjet printing apparatus
CANON KK9 citations84
US6129461AOct 10, 2000
Image recording apparatus having adjustment structure
CANON KK15 citations74
US6043866AMar 28, 2000
Carrier sheet and original reading apparatus
CANON KK12 citations74
US5820282AOct 13, 1998
Information processing apparatus with conveyance passage displacement mechanism
CANON KK12 citations74
RICOH CO LTD
4 patentsUS7991342B2Aug 2, 2011
Protective material and image forming apparatus using the protective material
RICOH CO LTD8 citations84
US7979017B2Jul 12, 2011
Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus and process cartridge
RICOH CO LTD12 citations84
US7970334B2Jun 28, 2011
Image-carrier protecting agent, protecting-layer forming device, image forming method, image forming apparatus, and process cartridge
RICOH CO LTD12 citations84
US7941087B2May 10, 2011
Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus and process cartridge
RICOH CO LTD12 citations84
DAIHEN CORP
3 patentsPANASONIC IP MAN CO LTD
1 patentTAKAHASHI YUKIO
1 patentFURUNO ELECTRIC CO
1 patentSK KAKEN CO LTD
1 patentTANAKA SHINYA
1 patentYAMASHITA MASAHIDE
1 patentWATANABE KAZUHIKO
1 patentMITSUBISHI GAS CHEMICAL CO
1 patentShowing the top 50 of 127 patents by PatentIndex Score.