Inventor · disambiguated record
Ryoji Fujiwara
Also filed as: FUJIWARA RYOJI
30 granted patents·6 pending applications·568 citations·filing 1981–2019
97Inventor score
Top patents by PatentIndex Score
36 records- 0195US5148302AOptical modulation element having two-dimensional phase type diffraction gratingNAGANO AKIHIKO·Filed 1991·Granted Sep 15, 1992·170 cites·29 claims
- 0294US7259520B2Electron emission device, electron source, and image display having dipole layerCANON KK·Filed 2005·Granted Aug 21, 2007·21 cites·20 claims
- 0390US7109663B2Electron emission device, electron source, and image display having dipole layerCANON KK·Filed 2004·Granted Sep 19, 2006·26 cites·18 claims
- 0487US5479283AFerroelectric liquid crystal apparatus having a threshold voltage greater than the polarization value divided by the insulating layer capacitanceCANON KK·Filed 1994·Granted Dec 26, 1995·69 cites·2 claims
- 0587US4850681AOptical modulation deviceCANON KK·Filed 1987·Granted Jul 25, 1989·71 cites·8 claims
- 0681US11846602B2Gas sensorDENSO CORP·Filed 2019·Granted Dec 19, 2023·3 cites·15 claims
- 0780US7811625B2Method for manufacturing electron-emitting deviceCANON KK·Filed 2007·Granted Oct 12, 2010·4 cites·2 claims
- 0877US8075360B2Electron-emitting device, electron source, image display apparatus, and manufacturing method of electron-emitting deviceTERAMOTO YOJI·Filed 2008·Granted Dec 13, 2011·6 cites·11 claims
- 0974US7583016B2Producing method for electron-emitting device and electron source, and image display apparatus utilizing producing method for electron-emitting deviceCANON KK·Filed 2005·Granted Sep 1, 2009·3 cites·10 claims
- 1074US6106906AMaterial for forming electroconductive film, method of forming electroconductive film by using the same and method of manufacturing electron-emitting device, electron source and image-forming apparatusCANON KK·Filed 1995·Granted Aug 22, 2000·34 cites·70 claims
- 1166US5475515ALiquid crystal device having a stretched porous polymer film impregnated with a low molecular weight mesomorphic compoundCANON KK·Filed 1994·Granted Dec 12, 1995·28 cites·30 claims
- 1263US5327272AOptical modulation elementCANON KK·Filed 1992·Granted Jul 5, 1994·19 cites·9 claims
- 1360US7682213B2Method of manufacturing an electron emitting device by terminating a surface of a carbon film with hydrogenCANON KK·Filed 2007·Granted Mar 23, 2010·0 cites·8 claims
- 1456US7733006B2Electron-emitting device and manufacturing method thereofCANON KK·Filed 2003·Granted Jun 8, 2010·2 cites·18 claims
- 1555US5675351AMethod and apparatus for driving active matrix liquid crystal deviceCANON KK·Filed 1995·Granted Oct 7, 1997·19 cites·13 claims
- 1655US5396352ALiquid crystal apparatus with gradation information signals and DC biasCANON KK·Filed 1991·Granted Mar 7, 1995·15 cites·28 claims
- 1754US7994701B2Electron-emitting device, electron source, image display apparatus, and manufacturing method of electron-emitting deviceCANON KK·Filed 2008·Granted Aug 9, 2011·0 cites·12 claims
- 1854US7400099B2Flat panel image display deviceCANON KK·Filed 2007·Granted Jul 15, 2008·0 cites·5 claims
- 1953US5270844ALiquid crystal optical element with minute insulation portions on the electrodesCANON KK·Filed 1992·Granted Dec 14, 1993·14 cites·10 claims
- 2052US5321538AMethod for gradation display using a liquid crystal optical element with minute insulation portions on the electrodesCANON KK·Filed 1993·Granted Jun 14, 1994·14 cites·6 claims
- 2152US2009153013A1Electron-emitting device, electron source, image display apparatus, and method for manufacturing electron-emitting deviceCANON KK·Filed 2008·Application pending·0 cites
- 2252US2009108727A1Electron-emitting device, electron source, image display apparatus, and manufacturing method of electron-emitting deviceCANON KK·Filed 2008·Application pending·0 cites
- 2352US2009117811A1Manufacturing method of electron-emitting device, manufacturing method of electron source, and manufacturing method of image display apparatusCANON KK·Filed 2008·Application pending·0 cites
- 2452US2009153014A1Electron-emitting device, electron source, and image display apparatusCANON KK·Filed 2008·Application pending·0 cites
- 2551US8080932B2Electron-emitting device, electron source, image display apparatus and method for manufacturing electron-emitting deviceMURAKAMI SHUNSUKE·Filed 2008·Granted Dec 20, 2011·0 cites·9 claims
- 2651US2009026914A1Electron-emitting device, electron source, image display apparatus, and information display reproducing apparatusCANON KK·Filed 2008·Application pending·0 cites
- 2747US8125470B2Electron source, image display apparatus, and information display reproducing apparatusNOMURA KAZUSHI·Filed 2008·Granted Feb 28, 2012·0 cites·8 claims
- 2847US4892594APhotovoltaic elementCANON KK·Filed 1988·Granted Jan 9, 1990·9 cites·7 claims
- 2946US8134288B2Electron-emitting device, electron source, and image display apparatusMOTOI TAIKO·Filed 2010·Granted Mar 13, 2012·0 cites·6 claims
- 3046US4438972AOperating mechanism for operating a sliding and tilting roof-panelNISSAN MOTOR·Filed 1981·Granted Mar 27, 1984·16 cites·6 claims
- 3144US4670334ATransparent electroconductive filmCANON KK·Filed 1984·Granted Jun 2, 1987·8 cites·15 claims
- 3240US2012091881A1Electron emitting deviceOZAKI EIJI·Filed 2011·Application pending·0 cites
- 3339US4605285AElectrochromic deviceCANON KK·Filed 1984·Granted Aug 12, 1986·6 cites·20 claims
- 3436US4902109AElectrochromic deviceCANON KK·Filed 1987·Granted Feb 20, 1990·5 cites·6 claims
- 3533US5260817ALiquid crystal optical device comprising a liquid crystal pixel and a parallel circuit for providing a gradation of displayCANON KK·Filed 1992·Granted Nov 9, 1993·6 cites·6 claims
- 3630US5838410AOptical modulation elementCANON KK·Filed 1994·Granted Nov 17, 1998·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →