Inventor · disambiguated record
Ryuji Ishii
Also filed as: ISHII RYUJI
29 granted patents·10 pending applications·204 citations·filing 1989–2025
95Inventor score
Files withCANON KK15SEIKO EPSON CORP9OKI ELECTRIC IND CO LTD3HITACHI LTD2DYNAMIC MAP PLATFORM CO LTD1
Top patents by PatentIndex Score
39 records- 0187US4994813AAntenna systemMITSUBISHI DENKI KABUSHIKI DEN·Filed 1989·Granted Feb 19, 1991·75 cites·13 claims
- 0286US10032987B2Organic light emitting elementCANON KK·Filed 2014·Granted Jul 24, 2018·5 cites·20 claims
- 0386US9755165B2Silsesquioxane compound, organic light emitting element, display apparatus, image information processing apparatus, and image forming apparatusCANON KK·Filed 2014·Granted Sep 5, 2017·7 cites·15 claims
- 0484US8029850B2Method of manufacturing organic electroluminescent device and method of manufacturing deviceSEIKO EPSON CORP·Filed 2006·Granted Oct 4, 2011·8 cites·2 claims
- 0584US6825061B2Method of manufacturing organic EL device and ink composition for organic EL deviceSEIKO EPSON CORP·Filed 2003·Granted Nov 30, 2004·39 cites·6 claims
- 0680US9472766B2Fused polycyclic compound and organic light emitting element including the sameCANON KK·Filed 2014·Granted Oct 18, 2016·2 cites·20 claims
- 0779US7020401B2Transponder and wavelength division-multiplexing optical transmission equipmentHITACHI LTD·Filed 2001·Granted Mar 28, 2006·15 cites·15 claims
- 0875US9911921B2Organic compound and organic light-emitting deviceCANON KK·Filed 2014·Granted Mar 6, 2018·1 cites·20 claims
- 0975US7547566B2Organic electroluminescent device and method of manufacturing the sameSEIKO EPSON CORP·Filed 2006·Granted Jun 16, 2009·4 cites·5 claims
- 1073US11844233B2Organic light-emitting element, method for producing organic light-emitting element, organic light-emitting device, method for producing organic light-emitting device, lighting device, moving object, image pickup device, and electronic apparatusCANON KK·Filed 2022·Granted Dec 12, 2023·0 cites·11 claims
- 1168US2024327977A1Film forming apparatus and method of manufacturing organic light emitting apparatusCANON KK·Filed 2024·Application pending·0 cites
- 1265US11765927B2Semiconductor device, method of manufacturing the same, display device, photoelectric conversion device, electronic device, illumination device, and mobile objectCANON KK·Filed 2019·Granted Sep 19, 2023·0 cites·22 claims
- 1364US2025295002A1Organic light-emitting device and method for manufacturing the sameCANON KK·Filed 2025·Application pending·0 cites
- 1462US11342535B2Organic light-emitting element, method for producing organic light-emitting element, organic light-emitting device, method for producing organic light-emitting device, lighting device, moving object, image pickup device, and electronic apparatusCANON KK·Filed 2019·Granted May 24, 2022·0 cites·23 claims
- 1562US11139435B2Organic light emitting elementCANON KK·Filed 2018·Granted Oct 5, 2021·0 cites·20 claims
- 1661US7112823B2Organic electroluminescent device and method of manufacturing the sameSEIKO EPSON CORP·Filed 2004·Granted Sep 26, 2006·4 cites·2 claims
- 1759US6257475B1Apparatus for issuing a ticketOKI ELECTRIC IND CO LTD·Filed 1998·Granted Jul 10, 2001·23 cites·11 claims
- 1858US8974923B2Organic compound and organic light-emitting device having the sameMUTA HAJIME·Filed 2011·Granted Mar 10, 2015·1 cites·8 claims
- 1954US2025278893A1Information processing method, program, and information processing apparatusDYNAMIC MAP PLATFORM CO LTD·Filed 2022·Application pending·0 cites
- 2053US9748490B2Organic compound, organic light-emitting element, and image display unitCANON KK·Filed 2014·Granted Aug 29, 2017·0 cites·13 claims
- 2151US7932668B2Organic electroluminescence device and method of manufacturing organic electroluminescence deviceSEIKO EPSON CORP·Filed 2007·Granted Apr 26, 2011·0 cites·7 claims
- 2250US7723666B2Photodiode array configured to increase electrical output power and optical microwave transmission system receiver utilizing the sameMITSUBISHI ELECTRIC CORP·Filed 2005·Granted May 25, 2010·0 cites·5 claims
- 2350US7229704B2Organic electroluminescent device and method of manufacturing the same, and electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted Jun 12, 2007·8 cites·7 claims
- 2449US7139479B2Method and apparatus for optical network administrationHITACHI LTD·Filed 2001·Granted Nov 21, 2006·2 cites·10 claims
- 2547US8952873B2Fused polycyclic compound and organic light-emitting device using the compoundOHRUI HIROKI·Filed 2012·Granted Feb 10, 2015·0 cites·9 claims
- 2646US2015212450A1Novel fused polycyclic compound and organic light-emitting device, display apparatus, image information processing apparatus, lighting system, and image forming apparatus having the compoundCANON KK·Filed 2013·Application pending·0 cites
- 2744US7078250B2Method and apparatus for manufacturing organic electroluminescent device, electronic apparatus and method of removing ionic impuritiesSEIKO EPSON CORP·Filed 2003·Granted Jul 18, 2006·2 cites·13 claims
- 2842US2013001536A1Novel benzoxazolyl carbazole compound and organic light-emitting device including the sameCANON KK·Filed 2011·Application pending·0 cites
- 2939US8488445B2Gateway device, optical network terminal, and passive optical network systemTAKIHIRO MASATOSHI·Filed 2008·Granted Jul 16, 2013·0 cites·9 claims
- 3039US2013105785A1Novel organic compound and organic light-emitting device including the sameSEKI MASANORI·Filed 2011·Application pending·0 cites
- 3139US2005062012A1Hole transport material and method of manufacturing the hole transport materialSEIKO EPSON CORP·Filed 2004·Application pending·0 cites
- 3239US2016299454A1Light emitter, image formation system, and exposure unitCANON KK·Filed 2016·Application pending·0 cites
- 3338US2014319495A1Novel organic compound, organic light-emitting device, and image display systemCANON KK·Filed 2014·Application pending·0 cites
- 3436US7439669B2Light emitting material, method of manufacturing the light emitting material and method of manufacturing light emitting layerSEIKO EPSON CORP·Filed 2004·Granted Oct 21, 2008·2 cites·15 claims
- 3535US2007172239A1Optical transmission systemYAMAZAKI TOMOTAKA·Filed 2006·Application pending·0 cites
- 3629US6092798ATicket issuing apparatusOKI ELECTRIC IND CO LTD·Filed 1996·Granted Jul 25, 2000·5 cites·8 claims
- 3726US6253996B1Medium handling apparatusOKI ELECTRIC IND CO LTD·Filed 1998·Granted Jul 3, 2001·1 cites·17 claims
- 3824US8007650B2Apparatus for manufacturing metal nanotube and process for manufacturing metal nanotubeFUKUNAKA YASUHIRO·Filed 2004·Granted Aug 30, 2011·0 cites·5 claims
- 3920US6318072B1Apparatus for reducing noise produced by supersonic jetUNIV KYOTO·Filed 1999·Granted Nov 20, 2001·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →