Inventor
KAWAI TATSUNDO
JP47 patents
⚠️ This page may combine multiple inventors who share the name “KAWAI TATSUNDO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
45 patentsUS6512600B1Jan 28, 2003
Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
CANON KK95 citations99
US5499112AMar 12, 1996
Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
CANON KK132 citations98
US5063462ANov 5, 1991
LED array and partitive driving method therefor using overlapping activation periods
CANON KK141 citations98
US6566806B1May 20, 2003
Luminescence device, and image-reading apparatus, data-processing apparatus and display apparatus including the device
CANON KK70 citations96
US5905583AMay 18, 1999
Light guide illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
CANON KK80 citations96
US4926058AMay 15, 1990
Image reading apparatus with block lighting and pulsing
CANON KK57 citations96
US4791493ADec 13, 1988
Image reading apparatus with illumination timing control
CANON KK57 citations96
US4737896AApr 12, 1988
Illumination device
CANON KK117 citations96
US4680644AJul 14, 1987
Method and apparatus for reading an image
CANON KK54 citations96
US5272548ADec 21, 1993
Photosensor and image reading device with improved correction means for signal correction and image reading method
CANON KK57 citations95
US5233442AAug 3, 1993
Photosensor and image reading device with improved correction means for signal correction and image reading method
CANON KK53 citations95
US6350996B1Feb 26, 2002
Light emitting diode device
CANON KK40 citations93
US6181442B1Jan 30, 2001
Close-contact type image sensor and image reading apparatus using the same
CANON KK40 citations93
US5900622AMay 4, 1999
Photoelectric conversion apparatus and information processing apparatus
CANON KK40 citations93
US5101285AMar 31, 1992
Photoelectric conversion device having an improved illuminating system and information processing apparatus mounting the device
CANON KK41 citations93
US7593139B2Sep 22, 2009
Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
CANON KK11 citations92
US6661497B2Dec 9, 2003
Illumination apparatus using light guide
CANON KK31 citations92
US6426807B1Jul 30, 2002
Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
CANON KK53 citations92
US6375335B1Apr 23, 2002
Illumination device and information processing apparatus
CANON KK41 citations92
US6360030B1Mar 19, 2002
Illumination device and image reading apparatus using the same
CANON KK45 citations92
US6333779B1Dec 25, 2001
Illumination apparatus using light guide
CANON KK24 citations92
US6295141B1Sep 25, 2001
Image reading apparatus
CANON KK44 citations92
US6239421B1May 29, 2001
Rod lens array and image read apparatus and system using the same
CANON KK39 citations92
US6115187ASep 5, 2000
Optical device and image reading apparatus
CANON KK33 citations92
US6055072AApr 25, 2000
Image reading apparatus and image reading system
CANON KK21 citations92
US5261013ANov 9, 1993
Photoelectric converter and image reading apparatus mounting the same
CANON KK51 citations92
US5187595AFeb 16, 1993
Photoelectric conversion device having improved illumination and information processing apparatus mounting the device
CANON KK21 citations92
US5121225AJun 9, 1992
Photoelectric converter and image reading apparatus mounting the same
CANON KK51 citations92
US4996606AFeb 26, 1991
Light emitting device and original reading apparatus having the device
CANON KK42 citations92
US4920431AApr 24, 1990
Image reading apparatus with jam-prevention feature
CANON KK41 citations92
US7982213B2Jul 19, 2011
Phenanthroline compound and organic light emitting device using same
CANON KK13 citations84
US7338721B2Mar 4, 2008
Condensed polycyclic compound and organic light-emitting device using the same
CANON KK10 citations84
US7034454B2Apr 25, 2006
Organic light emitting device with reverse intersystem crossing light emitting molecules
CANON KK17 citations84
US6556317B2Apr 29, 2003
Image reading apparatus and image reading system
CANON KK13 citations84
US7550594B2Jun 23, 2009
Phenanthroline compound and organic light emitting device using same
CANON KK6 citations74
US6636001B2Oct 21, 2003
Organic electronic device and nonlinear device
CANON KK9 citations74
US6473154B2Oct 29, 2002
Illumination apparatus using light guide
CANON KK13 citations74
US6122105ASep 19, 2000
Optical apparatus and optical system
CANON KK12 citations74
US7057778B2Jun 6, 2006
Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
CANON KK9 citations73
US4733098AMar 22, 1988
Image reading apparatus comprising first and second substrates separated at a fixed distance
CANON KK13 citations73
US9990890B2Jun 5, 2018
Display device and control method therefor
CANON KK3 citations71
US6664731B2Dec 16, 2003
Charge injection type light emitting device
CANON KK2 citations63
US6462841B1Oct 8, 2002
Image sensor, and image processing apparatus using the same
CANON KK5 citations63
US5717502AFeb 10, 1998
Image reading device and information processor having the image reading device
CANON KK5 citations63
US5204762AApr 20, 1993
Image reading device
CANON KK1 citations52