Inventor · disambiguated record
Ryoji Yokotani
Also filed as: YOKOTANI RYOJI
10 granted patents·3 pending applications·347 citations·filing 2003–2016
90Inventor score
Files withYOKOTANI RYOJI5PANASONIC IP MAN CO LTD3PANASONIC ELEC WORKS CO LTD2IMAMURA HIROSHI1MATSUSHITA ELECTRIC WORKS LTD1
Top patents by PatentIndex Score
13 records- 0194US7495322B2Light-emitting devicePANASONIC ELEC WORKS CO LTD·Filed 2004·Granted Feb 24, 2009·120 cites·3 claims
- 0294US7084435B2Light emitting device using LEDMATSUSHITA ELECTRIC WORKS LTD·Filed 2003·Granted Aug 1, 2006·107 cites·20 claims
- 0390US9099333B2LED lamp device having a fluorescent element shaped for uniform light conversionIMAMURA HIROSHI·Filed 2010·Granted Aug 4, 2015·12 cites·8 claims
- 0490US7717589B2Light emitting device using light emitting diode chipPANASONIC ELEC WORKS CO LTD·Filed 2004·Granted May 18, 2010·75 cites·18 claims
- 0587US8967827B2Lead frame, wiring board, light emitting unit, and illuminating apparatusURANO YOJI·Filed 2011·Granted Mar 3, 2015·14 cites·12 claims
- 0681US8592836B2Light emitting device and illumination apparatus using sameYOKOTANI RYOJI·Filed 2011·Granted Nov 26, 2013·7 cites·15 claims
- 0774US8558456B2Light emitting device and illumination apparatus including sameYOKOTANI RYOJI·Filed 2012·Granted Oct 15, 2013·4 cites·16 claims
- 0872US8876311B2Light emitting device and illumination apparatus including sameYOKOTANI RYOJI·Filed 2012·Granted Nov 4, 2014·4 cites·15 claims
- 0971US8894251B2Lighting device topology for reducing unevenness in LED luminance and colorYOKOTANI RYOJI·Filed 2011·Granted Nov 25, 2014·4 cites·17 claims
- 1047US9991236B2LED lamp device having a fluorescent element shaped for uniform light conversionPANASONIC IP MAN CO LTD·Filed 2015·Granted Jun 5, 2018·0 cites·3 claims
- 1139US2016258603A1Lighting devicePANASONIC IP MAN CO LTD·Filed 2016·Application pending·0 cites
- 1237US2006175625A1Light emitting element, lighting device and surface emission illuminating device using itYOKOTANI RYOJI·Filed 2003·Application pending·0 cites
- 1336US2017040506A1Light-emitting apparatus and illumination apparatusPANASONIC IP MAN CO LTD·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →