Inventor · disambiguated record
Akira Nagatomi
Also filed as: NAGATOMI AKIRA
38 granted patents·3 pending applications·599 citations·filing 1999–2015
98Inventor score
Files withDOWA ELECTRONICS MATERIALS CO LTD17DOWA MINING CO7NAGATOMI AKIRA7GOTOH MASAHIRO2KANESHIRO YUKI2
Top patents by PatentIndex Score
41 records- 0196US7476337B2Phosphor and manufacturing method for the same, and light sourceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·40 cites·14 claims
- 0295US7524437B2Phosphor and manufacturing method of the same, and light emitting device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Apr 28, 2009·38 cites·31 claims
- 0395US7476338B2Phosphor and manufacturing method for the same, and light sourceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·33 cites·25 claims
- 0495US7138756B2Phosphor for electron beam excitation and color display device using the sameDOWA MINING CO·Filed 2004·Granted Nov 21, 2006·88 cites·9 claims
- 0594US7887718B2Phosphor and manufacturing method therefore, and light emission device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Feb 15, 2011·25 cites·32 claims
- 0693US7273568B2Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LEDDOWA MINING CO·Filed 2004·Granted Sep 25, 2007·47 cites·32 claims
- 0792US7252788B2Phosphor, light source and LEDDOWA MINING CO·Filed 2004·Granted Aug 7, 2007·65 cites·15 claims
- 0891US7443094B2Phosphor and manufacturing method of the same, and light emitting device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Oct 28, 2008·22 cites·16 claims
- 0990US8372309B2Phosphor and manufacturing method therefore, and light emission device using the phosphorMITSUBISHI CHEM CORP·Filed 2010·Granted Feb 12, 2013·9 cites·4 claims
- 1089US8062549B2Phosphor and manufacturing method therefore, and light emission device using the phosphorNAGATOMI AKIRA·Filed 2006·Granted Nov 22, 2011·15 cites·40 claims
- 1189US7514860B2Phosphor mixture and light emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Apr 7, 2009·18 cites·19 claims
- 1289US7432647B2Light source having phosphor including divalent trivalent and tetravalent elementsDOWA ELECTRONICS MATERIALS CO LTD·Filed 2004·Granted Oct 7, 2008·35 cites·10 claims
- 1389US7345418B2Phosphor mixture and light emitting device using the sameDOWA MINING CO·Filed 2004·Granted Mar 18, 2008·52 cites·18 claims
- 1488US7445730B2Phosphor and manufacturing method of the same, and light emitting device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Nov 4, 2008·16 cites·22 claims
- 1585US9761868B2Lithium—transition metal oxide powder and method of producing the same, positive electrode active material for lithium ion battery, and lithium ion secondary batteryNAGATOMI AKIRA·Filed 2011·Granted Sep 12, 2017·3 cites·13 claims
- 1683US7477009B2Phosphor mixture and light emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·11 cites·19 claims
- 1782US7476335B2Phosphor and manufacturing method therefore, and light source using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·7 cites·20 claims
- 1881US6319485B1Magnetic material and production method thereofDOWA MINING CO·Filed 1999·Granted Nov 20, 2001·42 cites·2 claims
- 1978US8071501B2Composite oxide for use as exhaust gas purification catalyst and filterKANESHIRO YUKI·Filed 2007·Granted Dec 6, 2011·4 cites·4 claims
- 2075US8475682B2Phosphor and manufacturing method therefore, and light emission device using the phosphorNAGATOMI AKIRA·Filed 2011·Granted Jul 2, 2013·2 cites·18 claims
- 2175US8048338B2Phosphor, phosphor sheet, and manufacturing method therefore, and light emission device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Nov 1, 2011·6 cites·33 claims
- 2274USRE45502EPhosphor and manufacturing method therefore, and light source using the phosphorSAKANE KENJI·Filed 2012·Granted May 5, 2015·2 cites·22 claims
- 2373US7291289B2Phosphor and production method of the same and light source and LED using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2004·Granted Nov 6, 2007·12 cites·16 claims
- 2471US7803286B2Phosphor and manufacturing method for the same, and light sourceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2008·Granted Sep 28, 2010·2 cites·8 claims
- 2570US7476336B2Phosphor and manufacturing method for the same, and light emitting device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·3 cites·15 claims
- 2667US8066910B2Phosphor and manufacturing method for the same, and light sourceSAKANE KENJI·Filed 2010·Granted Nov 29, 2011·1 cites·7 claims
- 2759US2016043391A1Lithium-transition metal oxide powder and method of producing the same, positive electrode active material for lithium ion battery, and lithium ion secondary batteryDOWA HOLDINGS CO LTD·Filed 2015·Application pending·0 cites
- 2858US7884539B2Light source having phosphor including divalent, trivalent and tetravalent elementsDOWA ELECTRONICS MATERIALS CO LTD·Filed 2008·Granted Feb 8, 2011·0 cites·5 claims
- 2958US2009085010A1Phosphor and manufacturing method for the same, and light sourceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2008·Application pending·0 cites
- 3057USRE44996EPhosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LEDNAGATOMI AKIRA·Filed 2012·Granted Jul 8, 2014·0 cites·32 claims
- 3156USRE45640EPhosphor for electron beam excitation and color display device using the sameGOTOH MASAHIRO·Filed 2012·Granted Aug 4, 2015·0 cites·15 claims
- 3256US8441180B2Light source having phosphor including divalent, trivalent and tetravalent elementsNAGATOMI AKIRA·Filed 2011·Granted May 14, 2013·0 cites·5 claims
- 3355US8308981B2Phosphor and manufacturing method for the same, and light sourceNAGATOMI AKIRA·Filed 2010·Granted Nov 13, 2012·0 cites·6 claims
- 3454USRE44162EPhosphor and phosphor film for electron beam excitation and color display apparatus using the sameGOTOH MASAHIRO·Filed 2011·Granted Apr 23, 2013·0 cites·14 claims
- 3553US8524122B2Method of producing ITO particlesMURAMATSU ATSUSHI·Filed 2009·Granted Sep 3, 2013·0 cites·4 claims
- 3652US7527748B2Phosphor and phosphor film for electron beam excitation and color display apparatus using the sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted May 5, 2009·0 cites·8 claims
- 3752US7241501B2Iron nitride magnetic powder and method of producing the powderDOWA MINING CO·Filed 2004·Granted Jul 10, 2007·1 cites·10 claims
- 3851US8512602B2ITO powder and method of producing the same, coating material for transparent conductive material, and transparent conductive filmNAGATOMI AKIRA·Filed 2008·Granted Aug 20, 2013·0 cites·2 claims
- 3951US2013026908A1Phosphor and manufacturing method therefore, and light emission device using the phosphorMITSUBISHI CHEM CORP·Filed 2012·Application pending·0 cites
- 4049US8629078B2Composite oxide for exhaust gas purifying catalyst and exhaust gas purifying catalyst, and diesel exhaust gas purifying filterKANESHIRO YUKI·Filed 2007·Granted Jan 14, 2014·0 cites·7 claims
- 4142US7332220B2Iron nitride magnetic powder and method of producing the powderDOWA MINING CO·Filed 2005·Granted Feb 19, 2008·0 cites·7 claims
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