Inventor · disambiguated record
Naoto Hirosaki
Also filed as: HIROSAKI NAOTO
103 granted patents·16 pending applications·793 citations·filing 1987–2024
99Inventor score
Files withNAT INST FOR MATERIALS SCIENCE28HIROSAKI NAOTO21MITSUBISHI CHEM CORP17NAT INST MATERIALS SCIENCE10NISSAN MOTOR7
Top patents by PatentIndex Score
119 records- 0197US11661549B1Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2022·Granted May 30, 2023·6 cites·20 claims
- 0297US11655416B1Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2022·Granted May 23, 2023·6 cites·20 claims
- 0397US6737378B2Silicon nitride sintered products and processes for their productionNAT INST RES INORGANIC MAT·Filed 2002·Granted May 18, 2004·93 cites·7 claims
- 0497US6579819B2Silicon nitride sintered products and processes for their productionNAT INST RES INORGANIC MAT·Filed 2001·Granted Jun 17, 2003·93 cites·11 claims
- 0596US11891555B2Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2023·Granted Feb 6, 2024·2 cites·16 claims
- 0696US11891554B2Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2023·Granted Feb 6, 2024·2 cites·8 claims
- 0796US11884857B2Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2023·Granted Jan 30, 2024·2 cites·16 claims
- 0896US11884856B2Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2023·Granted Jan 30, 2024·2 cites·8 claims
- 0996US7544310B2Fluorescent substanceNAT INST FOR MATERIALS SCIENCE·Filed 2005·Granted Jun 9, 2009·32 cites·14 claims
- 1094US8409470B2Phosphor and light-emitting equipment using phosphorHIROSAKI NAOTO·Filed 2006·Granted Apr 2, 2013·22 cites·23 claims
- 1194US7431864B2Phosphor, production method thereof and light emitting instrumentNAT INST FOR MATERIALS SCIENCE·Filed 2007·Granted Oct 7, 2008·23 cites·12 claims
- 1294US7253446B2Light emitting device and illumination apparatusINDP ADMINISTRATIVE INST NIMS·Filed 2006·Granted Aug 7, 2007·79 cites·26 claims
- 1393US8147715B2Phosphor, process for producing the same, and luminescent deviceHIROSAKI NAOTO·Filed 2006·Granted Apr 3, 2012·22 cites·11 claims
- 1492US11084980B2Phosphor and light-emitting equipment using phosphorMITSUBISHI CHEM CORP·Filed 2018·Granted Aug 10, 2021·5 cites·14 claims
- 1591US8148887B2Light emitting diode lamp and light emitting deviceHIROSAKI NAOTO·Filed 2008·Granted Apr 3, 2012·20 cites·11 claims
- 1690US8206611B2Phosphor and use thereofHIROSAKI NAOTO·Filed 2006·Granted Jun 26, 2012·20 cites·42 claims
- 1790US7540977B2Phosphor, production method thereof and light emitting instrumentNAT INST FOR MATERIALS SCIENCE·Filed 2005·Granted Jun 2, 2009·20 cites·20 claims
- 1888US8398892B2Phosphor, method for producing the same and light-emitting device using the sameSHIOI KOUSUKE·Filed 2008·Granted Mar 19, 2013·15 cites·14 claims
- 1988US7906040B2α-Sialon, α-sialon phosphor and method for producing the sameNAT INST FOR MATERIALS SCIENCE·Filed 2005·Granted Mar 15, 2011·16 cites·18 claims
- 2088US7611642B2Oxynitride phosphor and light emitting deviceSHARP KK·Filed 2007·Granted Nov 3, 2009·15 cites·30 claims
- 2188US7573190B2Light emitting element and lighting instrumentNAT INST FOR MATERIALS SCIENCE·Filed 2005·Granted Aug 11, 2009·15 cites·14 claims
- 2286US12286575B2Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2023·Granted Apr 29, 2025·0 cites·16 claims
- 2386US12281249B2Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicleMITSUBISHI CHEM CORP·Filed 2023·Granted Apr 22, 2025·0 cites·16 claims
- 2486US7815817B2Phosphor and process for producing the sameNAT INST FOR MATERIALS SCIENCE·Filed 2006·Granted Oct 19, 2010·12 cites·8 claims
- 2586US7713443B2Phosphor production methodNAT INST FOR MATERIALS SCIENCE·Filed 2006·Granted May 11, 2010·14 cites·8 claims
- 2685US10479935B2Fluorescent material, method of producing the same, and light emitting device using the sameNAT INST MATERIALS SCIENCE·Filed 2017·Granted Nov 19, 2019·1 cites·8 claims
- 2785US9062252B2Phosphor, manufacture thereof, light-emitting device, and image display deviceHIROSAKI NAOTO·Filed 2012·Granted Jun 23, 2015·7 cites·51 claims
- 2884US7678294B2Illuminator with fluorescent substanceNAT INST FOR MATERIALS SCIENCE·Filed 2008·Granted Mar 16, 2010·8 cites·18 claims
- 2983US8674388B2Phosphor, method of manufacturing the same, and light-emitting deviceSHIOI KOUSUKE·Filed 2010·Granted Mar 18, 2014·8 cites·23 claims
- 3083US7825580B2Fluorophor and method for production thereof and illuminatorNAT INST FOR MATERIALS SCIENCE·Filed 2006·Granted Nov 2, 2010·12 cites·20 claims
- 3182US11279876B2Phosphor and light-emitting device using sameDENKA COMPANY LTD·Filed 2019·Granted Mar 22, 2022·2 cites·15 claims
- 3282US10072207B2Phosphor and light-emitting equipment using phosphorMITSUBISHI CHEM CORP·Filed 2017·Granted Sep 11, 2018·2 cites·19 claims
- 3382US7910023B2Lithium-containing sialon phosphor and method of manufactring the sameNAT INST FOR MATERIALS SCIENCE·Filed 2006·Granted Mar 22, 2011·8 cites·8 claims
- 3482US7494606B2Oxynitride phosphor and semiconductor light-emitting deviceSHARP KK·Filed 2006·Granted Feb 24, 2009·11 cites·19 claims
- 3581US7525245B2Electron beam excited fluorescence emitting deviceFUTABA DENSHI KOGYO KK·Filed 2006·Granted Apr 28, 2009·9 cites·8 claims
- 3680US11697765B2Phosphor and light-emitting equipment using phosphorMITSUBISHI CHEM CORP·Filed 2021·Granted Jul 11, 2023·0 cites·16 claims
- 3779US7597821B2Oxynitride phosphor and a light emitting deviceFUJIKURA LTD·Filed 2005·Granted Oct 6, 2009·8 cites·14 claims
- 3878US8142685B2Fluorescent material, process for producing the same, and luminescent deviceHIROSAKI NAOTO·Filed 2008·Granted Mar 27, 2012·7 cites·15 claims
- 3977US10381529B2Light-emitting device and display deviceSHARP KK·Filed 2017·Granted Aug 13, 2019·1 cites·11 claims
- 4077US7402943B2Oxynitride phosphor and a light emitting deviceFUJIKURA LTD·Filed 2005·Granted Jul 22, 2008·7 cites·3 claims
- 4176US8765015B2Phosphor, process for producing the same, and luminescent deviceHIROSAKI NAOTO·Filed 2012·Granted Jul 1, 2014·3 cites·3 claims
- 4275US10662374B2Phosphor, production method for same, illumination instrument, and image display deviceNAT INST MATERIALS SCIENCE·Filed 2016·Granted May 26, 2020·1 cites·21 claims
- 4375US10381528B2Image display apparatusSHARP KK·Filed 2016·Granted Aug 13, 2019·1 cites·8 claims
- 4474US8608980B2Phosphor, method for producing the same and light-emitting device using the sameSHOWA DENKO KK·Filed 2013·Granted Dec 17, 2013·3 cites·4 claims
- 4574US8436525B2Phosphor, production method thereof and light emitting instrumentHIROSAKI NAOTO·Filed 2011·Granted May 7, 2013·2 cites·16 claims
- 4674US7780872B2Fluorescent substance, method for manufacturing the same and image display deviceNAT INST FOR MATERIALS SCIENCE·Filed 2009·Granted Aug 24, 2010·4 cites·21 claims
- 4773US10818824B2Light-emitting instrument and image display deviceNAT INST MATERIALS SCIENCE·Filed 2016·Granted Oct 27, 2020·1 cites·10 claims
- 4873US7846351B2Fluorescent substance, process for producing the same, and luminescent deviceNAT INST FOR MATERIALS SCIENCE·Filed 2006·Granted Dec 7, 2010·5 cites·20 claims
- 4973US7608862B2Light emitting device and a lighting apparatusFUJIKURA LTD·Filed 2005·Granted Oct 27, 2009·6 cites·8 claims
- 5073US7470378B2Oxynitride fluorescent material and light-emitting deviceNAT INST FOR MATERIALS SCIENCE·Filed 2004·Granted Dec 30, 2008·17 cites·20 claims
Showing the top 50 of 119 patent records by PatentIndex Score.
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