Inventor
BANNAI KAZUNORI
JP55 patents
⚠️ This page may combine multiple inventors who share the name “BANNAI KAZUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
37 patentsUS5847845ADec 8, 1998
Book document reading device
RICOH KK58 citations96
US5610720AMar 11, 1997
Book document reading device having a page turning capability
RICOH KK65 citations96
US5471277ANov 28, 1995
Book document reading device having a page turning capability
RICOH KK67 citations96
US5390033AFeb 14, 1995
Method and apparatus for turning over pages of book-original
RICOH KK49 citations96
US5325213AJun 28, 1994
Image reader and book document reader with a page turning capability for an image forming apparatus
RICOH KK54 citations96
US5297376AMar 29, 1994
Finisher for an image forming apparatus
RICOH KK54 citations96
US4933727AJun 12, 1990
Color recording apparatus
RICOH KK72 citations96
US5316282AMay 31, 1994
Sheet feeding and separating device for image forming equipment
RICOH KK63 citations95
US5270783ADec 14, 1993
Image forming equipment having improved toner sensing
RICOH KK66 citations95
US5219154AJun 15, 1993
Sheet feeding and separating device for image forming equipment
RICOH KK61 citations95
US5121170AJun 9, 1992
Device for transporting sheet members using an alternating voltage
RICOH KK72 citations95
US5227842AJul 13, 1993
Electrophotographic image forming apparatus which controls developer bias based on image irregularity
RICOH KK62 citations94
US6891559B1May 10, 2005
Optical scanning apparatus and an image forming apparatus
RICOH KK19 citations93
US6697092B2Feb 24, 2004
Color image forming apparatus with color image shift correction
RICOH KK20 citations93
US6075624AJun 13, 2000
Method and apparatus for turning over pages of book-original
RICOH KK22 citations93
US5583662ADec 10, 1996
Book document reading device having a page turning capability
RICOH KK49 citations93
US5315322AMay 24, 1994
Image forming apparatus with anti-banding implementation
RICOH KK40 citations93
US5255904AOct 26, 1993
Feeder or image forming apparatus
RICOH KK35 citations93
US5224693AJul 6, 1993
Multistage paper feeding/conveying apparatus and method that uses electro static forces
RICOH KK26 citations93
US5055860AOct 8, 1991
Image forming apparatus
RICOH KK22 citations93
US7215349B2May 8, 2007
Method and apparatus for image forming capable of effectively avoiding an adverse temperature effect to an optical scanning system
RICOH KK21 citations92
US6786590B2Sep 7, 2004
Recording-medium conveying device conveying a recording medium on a conveying belt charged with a positive charge and a negative charge alternately
RICOH KK35 citations92
US5689348ANov 18, 1997
Book document reading device
RICOH KK25 citations92
US5682227AOct 28, 1997
Royalty accounting system for a book copier
RICOH KK41 citations92
US5583607ADec 10, 1996
Image forming apparatus having book reading and page turning capabilities
RICOH KK33 citations92
US5160969ANov 3, 1992
Image forming apparatus having a separate black developer stored for a color image
RICOH KK52 citations91
US7697184B2Apr 13, 2010
Optical scanning device and image forming apparatus
RICOH KK13 citations84
US7450146B2Nov 11, 2008
Optical scanning device including plural light shielding units provided at different heights and image forming apparatus
RICOH KK10 citations84
US7436425B2Oct 14, 2008
Optical writing apparatus and image forming apparatus
RICOH KK15 citations84
US7050731B2May 23, 2006
Image forming apparatus including transfer belt having uneven thickness and position shift detection and correction method
RICOH KK12 citations84
US6836633B2Dec 28, 2004
Optical scanning device and image forming apparatus including the optical scanning device
RICOH KK17 citations84
US7619643B2Nov 17, 2009
Method and apparatus for image forming capable of effectively avoiding an adverse temperature effect to an optical scanning system
RICOH KK6 citations74
US6873346B2Mar 29, 2005
Image forming apparatus
RICOH KK11 citations74
US4987428AJan 22, 1991
Color image forming apparatus
RICOH KK9 citations74
US7264347B2Sep 4, 2007
Recording-medium conveying device conveying a recording medium on a conveying belt charged with a positive charge and a negative charge alternately
RICOH KK8 citations73
US7589756B2Sep 15, 2009
Optical scanning device, image forming apparatus, optical scanning correcting method, and image forming method
RICOH KK4 citations63
US7705872B2Apr 27, 2010
Optical writing device and image forming apparatus
RICOH KK5 citations62
RICOH CO LTD
8 patentsUS8346106B2Jan 1, 2013
Fixing device and image forming apparatus using same having a second heater outside the recording medium passing area
RICOH CO LTD8 citations84
US7916161B2Mar 29, 2011
Image forming apparatus
RICOH CO LTD8 citations84
US7986334B2Jul 26, 2011
Image forming apparatus, optical writing device, and optical writing method
RICOH CO LTD6 citations62
US7907869B2Mar 15, 2011
Charging brush unit, charging device, and image forming apparatus
RICOH CO LTD2 citations62
US7860442B2Dec 28, 2010
Image fixing device having carbon lamp and reflector
RICOH CO LTD6 citations62
US8373736B2Feb 12, 2013
Optical scanning device and image forming apparatus
RICOH CO LTD1 citations52
US11597639B2Mar 7, 2023
Transport apparatus
RICOH CO LTD0 citations51
US8014713B2Sep 6, 2011
Fixing device and image forming apparatus
RICOH CO LTD0 citations51
TAKENAKA KOHTA
2 patentsFUJIWARA HIDEHIKO
1 patentKOBAYASHI SHUN
1 patentNARITA SUSUMU
1 patentShowing the top 50 of 55 patents by PatentIndex Score.