Inventor · disambiguated record
Katsunobu Hamamoto
Also filed as: HAMAMOTO KATSUNOBU
12 granted patents·1 pending application·103 citations·filing 2001–2019
89Inventor score
Files withMATSUSHITA ELECTRIC WORKS LTD4PANASONIC CORP3PANASONIC IP MAN CO LTD2HAMAMOTO KATSUNOBU1SAKO HIROYUKI1
Top patents by PatentIndex Score
13 records- 0184US7436123B2Discharge lamp ballast device and lighting applianceMATSUSHITA ELECTRIC WORKS LTD·Filed 2005·Granted Oct 14, 2008·13 cites·27 claims
- 0283US6949885B2Discharge lamp lighting device and lighting apparatusMATSUSHITA ELECTRIC WORKS LTD·Filed 2004·Granted Sep 27, 2005·33 cites·18 claims
- 0375US9167642B2LED lighting device and illuminating apparatus using the samePANASONIC CORP·Filed 2013·Granted Oct 20, 2015·3 cites·7 claims
- 0474US8575857B2LED lighting deviceSAKO HIROYUKI·Filed 2011·Granted Nov 5, 2013·5 cites·4 claims
- 0572US9615414B2Power supply device and illumination devicePANASONIC IP MAN CO LTD·Filed 2015·Granted Apr 4, 2017·3 cites·4 claims
- 0671US7378804B2Ballast for a discharge lamp with integrated control circuit for controlling switching element of dc power supply and inverter circuitMATSUSHITA ELECTRIC WORKS LTD·Filed 2002·Granted May 27, 2008·27 cites·6 claims
- 0762US8853949B2LED driver with end-of-life detection circuitryHAMAMOTO KATSUNOBU·Filed 2011·Granted Oct 7, 2014·2 cites·20 claims
- 0859US6696798B2Ballast circuit for operating a discharge lampMATSUSHITA ELECTRIC WORKS LTD·Filed 2001·Granted Feb 24, 2004·17 cites·5 claims
- 0947US9167665B2Lighting device, lighting apparatus using the same, and lighting systemPANASONIC CORP·Filed 2013·Granted Oct 20, 2015·0 cites·7 claims
- 1047US8648544B2Illumination lighting apparatus, illumination apparatus, and illumination systemSASAKAWA TOMOHIRO·Filed 2009·Granted Feb 11, 2014·0 cites·12 claims
- 1146US9167661B2Power supply device and lighting device and lighting fixture using the samePANASONIC CORP·Filed 2012·Granted Oct 20, 2015·0 cites·6 claims
- 1244US2019301717A1Light source, light fixture, and power supply devicePANASONIC IP MAN CO LTD·Filed 2019·Application pending·0 cites
- 1343US9066407B2Power source unit for LED lamps, and LED lamp systemTERASAKA HIROSHI·Filed 2011·Granted Jun 23, 2015·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →