Inventor · disambiguated record
Tatsundo Kawai
Also filed as: KAWAI TATSUNDO
47 granted patents·3 pending applications·1,753 citations·filing 1985–2016
99Inventor score
Top patents by PatentIndex Score
50 records- 0196US5063462ALED array and partitive driving method therefor using overlapping activation periodsCANON KK·Filed 1989·Granted Nov 5, 1991·141 cites·13 claims
- 0296US4737896AIllumination deviceCANON KK·Filed 1986·Granted Apr 12, 1988·117 cites·14 claims
- 0395US5499112ALight guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating deviceCANON KK·Filed 1994·Granted Mar 12, 1996·132 cites·65 claims
- 0494US7982213B2Phenanthroline compound and organic light emitting device using sameCANON KK·Filed 2009·Granted Jul 19, 2011·13 cites·7 claims
- 0591US6566806B1Luminescence device, and image-reading apparatus, data-processing apparatus and display apparatus including the deviceCANON KK·Filed 2000·Granted May 20, 2003·70 cites·9 claims
- 0691US6512600B1Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating deviceCANON KK·Filed 1997·Granted Jan 28, 2003·95 cites·444 claims
- 0791US6426807B1Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating deviceCANON KK·Filed 2000·Granted Jul 30, 2002·53 cites·180 claims
- 0890US5905583ALight guide illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating deviceCANON KK·Filed 1997·Granted May 18, 1999·80 cites·158 claims
- 0989US6661497B2Illumination apparatus using light guideCANON KK·Filed 2001·Granted Dec 9, 2003·31 cites·45 claims
- 1089US4996606ALight emitting device and original reading apparatus having the deviceCANON KK·Filed 1988·Granted Feb 26, 1991·42 cites·33 claims
- 1187US7593139B2Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating deviceCANON KK·Filed 2006·Granted Sep 22, 2009·11 cites·4 claims
- 1287US4926058AImage reading apparatus with block lighting and pulsingCANON KK·Filed 1987·Granted May 15, 1990·57 cites·1 claims
- 1387US4791493AImage reading apparatus with illumination timing controlCANON KK·Filed 1987·Granted Dec 13, 1988·57 cites·5 claims
- 1486US4680644AMethod and apparatus for reading an imageCANON KK·Filed 1985·Granted Jul 14, 1987·54 cites·18 claims
- 1583US9990890B2Display device and control method thereforCANON KK·Filed 2016·Granted Jun 5, 2018·3 cites·20 claims
- 1682US4920431AImage reading apparatus with jam-prevention featureCANON KK·Filed 1988·Granted Apr 24, 1990·41 cites·17 claims
- 1780US5272548APhotosensor and image reading device with improved correction means for signal correction and image reading methodCANON KK·Filed 1990·Granted Dec 21, 1993·57 cites·38 claims
- 1879US5261013APhotoelectric converter and image reading apparatus mounting the sameCANON KK·Filed 1992·Granted Nov 9, 1993·51 cites·11 claims
- 1979US5233442APhotosensor and image reading device with improved correction means for signal correction and image reading methodCANON KK·Filed 1992·Granted Aug 3, 1993·53 cites·7 claims
- 2078US6473154B2Illumination apparatus using light guideCANON KK·Filed 2001·Granted Oct 29, 2002·13 cites·10 claims
- 2178US5121225APhotoelectric converter and image reading apparatus mounting the sameCANON KK·Filed 1990·Granted Jun 9, 1992·51 cites·33 claims
- 2277US5101285APhotoelectric conversion device having an improved illuminating system and information processing apparatus mounting the deviceCANON KK·Filed 1990·Granted Mar 31, 1992·41 cites·16 claims
- 2374US6375335B1Illumination device and information processing apparatusCANON KK·Filed 1997·Granted Apr 23, 2002·41 cites·66 claims
- 2474US6350996B1Light emitting diode deviceCANON KK·Filed 1999·Granted Feb 26, 2002·40 cites·21 claims
- 2573US7057778B2Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating deviceCANON KK·Filed 2002·Granted Jun 6, 2006·9 cites·12 claims
- 2673US7034454B2Organic light emitting device with reverse intersystem crossing light emitting moleculesCANON KK·Filed 2003·Granted Apr 25, 2006·17 cites·7 claims
- 2773US6360030B1Illumination device and image reading apparatus using the sameCANON KK·Filed 1997·Granted Mar 19, 2002·45 cites·22 claims
- 2872US6295141B1Image reading apparatusCANON KK·Filed 1998·Granted Sep 25, 2001·44 cites·32 claims
- 2972US6181442B1Close-contact type image sensor and image reading apparatus using the sameCANON KK·Filed 1997·Granted Jan 30, 2001·40 cites·25 claims
- 3071US6239421B1Rod lens array and image read apparatus and system using the sameCANON KK·Filed 1998·Granted May 29, 2001·39 cites·24 claims
- 3171US5900622APhotoelectric conversion apparatus and information processing apparatusCANON KK·Filed 1995·Granted May 4, 1999·40 cites·44 claims
- 3270US7338721B2Condensed polycyclic compound and organic light-emitting device using the sameCANON KK·Filed 2003·Granted Mar 4, 2008·10 cites·10 claims
- 3368US6115187AOptical device and image reading apparatusCANON KK·Filed 1998·Granted Sep 5, 2000·33 cites·68 claims
- 3467US6333779B1Illumination apparatus using light guideCANON KK·Filed 1999·Granted Dec 25, 2001·24 cites·13 claims
- 3564US7550594B2Phenanthroline compound and organic light emitting device using sameCANON KK·Filed 2003·Granted Jun 23, 2009·6 cites·4 claims
- 3664US6636001B2Organic electronic device and nonlinear deviceCANON KK·Filed 2001·Granted Oct 21, 2003·9 cites·6 claims
- 3763US5187595APhotoelectric conversion device having improved illumination and information processing apparatus mounting the deviceCANON KK·Filed 1990·Granted Feb 16, 1993·21 cites·21 claims
- 3861US2009284810A1Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating deviceCANON KK·Filed 2009·Application pending·0 cites
- 3958US6055072AImage reading apparatus and image reading systemCANON KK·Filed 1997·Granted Apr 25, 2000·21 cites·48 claims
- 4055US4733098AImage reading apparatus comprising first and second substrates separated at a fixed distanceCANON KK·Filed 1987·Granted Mar 22, 1988·13 cites·11 claims
- 4152US6664731B2Charge injection type light emitting deviceCANON KK·Filed 2002·Granted Dec 16, 2003·2 cites·4 claims
- 4249US6556317B2Image reading apparatus and image reading systemCANON KK·Filed 1997·Granted Apr 29, 2003·13 cites·78 claims
- 4348US6122105AOptical apparatus and optical systemCANON KK·Filed 1997·Granted Sep 19, 2000·12 cites·40 claims
- 4444US8330346B2Image display deviceKAWAI TATSUNDO·Filed 2009·Granted Dec 11, 2012·0 cites·4 claims
- 4540US2003044518A1Organic luminescence device and process for production thereofCANON KK·Filed 2002·Application pending·0 cites
- 4639US2002045062A1Organic luminescence device and process for production thereofFiled 2001·Application pending·0 cites
- 4738US8564191B2Light emitting substrate having photonic crystal structure and image display apparatus including the sameIKEGAMI TOMOYUKI·Filed 2011·Granted Oct 22, 2013·0 cites·10 claims
- 4837US6462841B1Image sensor, and image processing apparatus using the sameCANON KK·Filed 1998·Granted Oct 8, 2002·5 cites·33 claims
- 4936US5717502AImage reading device and information processor having the image reading deviceCANON KK·Filed 1994·Granted Feb 10, 1998·5 cites·40 claims
- 5030US5204762AImage reading deviceCANON KK·Filed 1992·Granted Apr 20, 1993·1 cites·42 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →