Inventor · disambiguated record
Kazuo Yoshinaga
Also filed as: YOSHINAGA KAZUO
93 granted patents·2,212 citations·filing 1985–2000
99Inventor score
Top patents by PatentIndex Score
93 records- 0195US4995705ADevice, method and apparatus for optical modulation using ferroelectric polymer liquid crystalsCANON KK·Filed 1987·Granted Feb 26, 1991·62 cites·48 claims
- 0291US5041369APhotosensitive material and image forming methodCANON KK·Filed 1989·Granted Aug 20, 1991·24 cites·13 claims
- 0390US4965591ARecording with polymer liquid crystal recording mediumCANON KK·Filed 1988·Granted Oct 23, 1990·38 cites·10 claims
- 0489US5503904AInvisible information recorded mediumCANON KK·Filed 1994·Granted Apr 2, 1996·67 cites·17 claims
- 0589US5372745ALiquid crystal device, display apparatus using same and display method using sameCANON KK·Filed 1991·Granted Dec 13, 1994·55 cites·21 claims
- 0689US4798680AOptically active compound, process for producing same and liquid crystal composition containing sameCANON KK·Filed 1986·Granted Jan 17, 1989·49 cites·21 claims
- 0788US6486974B1Image reading deviceCANON KK·Filed 2000·Granted Nov 26, 2002·48 cites·2 claims
- 0887US5039208APolymer liquid crystal deviceCANON KK·Filed 1990·Granted Aug 13, 1991·55 cites·26 claims
- 0987US5011623ANonlinear optical material and nonlinear optical deviceCANON KK·Filed 1989·Granted Apr 30, 1991·47 cites·6 claims
- 1085US5268783ALiquid crystal device including a polymer having a surface energy of at most 25 dyn/cm, display apparatus using same and display method using sameCANON KK·Filed 1992·Granted Dec 7, 1993·48 cites·6 claims
- 1185US4820026AFerroelectric liquid crystal device with modified polyvinyl alcohol alignment filmCANON KK·Filed 1987·Granted Apr 11, 1989·46 cites·49 claims
- 1285US4812259ALactic acid derivative, liquid crystal composition containing same and liquid crystal deviceCANON KK·Filed 1986·Granted Mar 14, 1989·17 cites·31 claims
- 1384US5812227ALiquid crystal device, display apparatus using same and display method using sameCANON KK·Filed 1993·Granted Sep 22, 1998·44 cites·15 claims
- 1484US4714323AFerroelectric liquid crystal device having chiral smectic and nematic liquid crystal compositionCANON KK·Filed 1985·Granted Dec 22, 1987·45 cites·27 claims
- 1583US5540858ADisplay method and apparatus using chiral smectic liquid crystalCANON KK·Filed 1994·Granted Jul 30, 1996·37 cites·24 claims
- 1683US5339306ADetecting interferential diffraction of a reflected beam from a polymer liquid crystal recording mediumCANON KK·Filed 1992·Granted Aug 16, 1994·32 cites·7 claims
- 1783US4721367ALiquid crystal deviceCANON KK·Filed 1986·Granted Jan 26, 1988·38 cites·28 claims
- 1882US5905008AElectrophotographic photosensitive member, and electrophotographic apparatus and process cartridge employing the sameCANON KK·Filed 1997·Granted May 18, 1999·34 cites·9 claims
- 1982US5834145AElectrophotographic photosensitve member and image forming apparatusCANON KK·Filed 1995·Granted Nov 10, 1998·33 cites·10 claims
- 2081US6094281AImage reading device with offset faces for visible and non-visible light sensorsCANON KK·Filed 1997·Granted Jul 25, 2000·62 cites·19 claims
- 2181US5123731AParticle measuring deviceCANON KK·Filed 1991·Granted Jun 23, 1992·53 cites·32 claims
- 2281US4882085ALactic acid derivative and liquid crystal composition containing sameCANON KK·Filed 1988·Granted Nov 21, 1989·14 cites·20 claims
- 2380US5059000AImage forming medium and image forming apparatus using sameCANON KK·Filed 1990·Granted Oct 22, 1991·29 cites·10 claims
- 2480US4775223ALactic acid derivative, liquid crystal composition containing same and liquid crystal deviceCANON KK·Filed 1985·Granted Oct 4, 1988·40 cites·31 claims
- 2579US5471281AImage reading apparatus and copying apparatus having means for radiating visible and non-visible light, image processing apparatus having means for discriminating a specific orginal and image processing method thereforCANON KK·Filed 1993·Granted Nov 28, 1995·39 cites·28 claims
- 2679US5120466AFluid crystal deviceCANON KK·Filed 1988·Granted Jun 9, 1992·31 cites·69 claims
- 2779US4883344ALiquid crystal device having a modified polyvinyl alcohol alignment layerCANON KK·Filed 1989·Granted Nov 28, 1989·35 cites·67 claims
- 2878US5617187AImage reading apparatus, copying apparatus, image processing apparatus, and image processing methodCANON KK·Filed 1995·Granted Apr 1, 1997·24 cites·18 claims
- 2977US4876027AOptically active composition, mesomorphic compound and liquid crystal deviceCANON KK·Filed 1989·Granted Oct 24, 1989·27 cites·38 claims
- 3076US5258134AMain chain-type chiral smectic polymer liquid crystal and polymer liquid crystal deviceCANON KK·Filed 1989·Granted Nov 2, 1993·27 cites·16 claims
- 3175US5724152AImage reading apparatus and image processing apparatus for reading optical information of visible and non-visible lightCANON KK·Filed 1993·Granted Mar 3, 1998·38 cites·26 claims
- 3275US5384069APolymeric liquid crystal composition and liquid crystal deviceCANON KK·Filed 1992·Granted Jan 24, 1995·31 cites·15 claims
- 3375US4979805AFerroelectric liquid crystal device containing optically active azo or azoxy benzene type mesomorphic compound with extended lifeCANON KK·Filed 1989·Granted Dec 25, 1990·11 cites·9 claims
- 3475US4712872ALiquid crystal deviceCANON KK·Filed 1985·Granted Dec 15, 1987·34 cites·48 claims
- 3574US5910386AElectrophotographic photosensitive member, and electrophotographic apparatus and process cartridge employing the sameCANON KK·Filed 1997·Granted Jun 8, 1999·23 cites·9 claims
- 3674US5879847AElectrophotographic photosensitive member, a process-cartridge inclusive thereof and an image forming apparatusCANON KK·Filed 1997·Granted Mar 9, 1999·20 cites·22 claims
- 3773US5818489AImage forming apparatus and process cartridge having exposure device using light beam having specific spot areaCANON KK·Filed 1995·Granted Oct 6, 1998·22 cites·20 claims
- 3873US5481334AImage processing apparatus having means for detecting non-visible light, and image processing method thereforCANON KK·Filed 1993·Granted Jan 2, 1996·28 cites·22 claims
- 3973US5066107ALiquid crystal display medium, liquid crystal display method and liquid crystal display apparatus for outputting color imagesCANON KK·Filed 1989·Granted Nov 19, 1991·26 cites·19 claims
- 4073US4816178AOptically active compound and liquid crystal composition containing sameCANON KK·Filed 1987·Granted Mar 28, 1989·20 cites·13 claims
- 4172US6051826APhotosensor with filter for cutting off the input of invisible informationCANON KK·Filed 1997·Granted Apr 18, 2000·40 cites·10 claims
- 4272US5650863AImage reading and copying using plural illumination sources having different characteristicsCANON KK·Filed 1995·Granted Jul 22, 1997·43 cites·52 claims
- 4371US5720898AMesomorphic compound, liquid crystal composition and liquid crystal deviceCANON KK·Filed 1994·Granted Feb 24, 1998·24 cites·21 claims
- 4471US5473448ADisplay device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layerCANON KK·Filed 1995·Granted Dec 5, 1995·41 cites·24 claims
- 4570US5666589AElectrophotographic apparatus and image forming method using a photosensitive member with exposure characteristics responsive to field intensityCANON KK·Filed 1995·Granted Sep 9, 1997·20 cites·32 claims
- 4670US4844597ALiquid crystal device utilizing chiral-smectic and nematic phases for thinner crystal layersCANON KK·Filed 1988·Granted Jul 4, 1989·22 cites·21 claims
- 4769US6296978B1Electrophotographic photosensitive member, a process-cartridge inclusive thereof, and an image forming apparatusCANON KK·Filed 1998·Granted Oct 2, 2001·19 cites·12 claims
- 4869US6187495B1Yellow toner, process for producing the tower and image forming method using the tonerCANON KK·Filed 1999·Granted Feb 13, 2001·18 cites·71 claims
- 4969US4892675AOptically active polymer and liquid crystal composition containing sameCANON KK·Filed 1988·Granted Jan 9, 1990·15 cites·12 claims
- 5068US5285298AColor display apparatusCANON KK·Filed 1992·Granted Feb 8, 1994·31 cites·30 claims
Showing the top 50 of 93 patent records by PatentIndex Score.
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