Assignee
KUMAGAI JUN
JP·4 granted patents·13 citations·filing 2007–2010
Top patents by PatentIndex Score
4 records- 0175US8294385B2High-pressure discharge lamp ballast with multi-mode lamp starting circuitKUMAGAI JUN·Filed 2009·Granted Oct 23, 2012·8 cites·21 claims
- 0273US8395327B2High-pressure discharge lamp lighting device and lighting fixture using the sameKUMAGAI JUN·Filed 2007·Granted Mar 12, 2013·5 cites·10 claims
- 0349US8593077B2High-voltage discharge lamp lighting device and lighting fixtureKUMAGAI JUN·Filed 2009·Granted Nov 26, 2013·0 cites·6 claims
- 0437US8638039B2Electronic ballast and method for providing a DC voltage component during lamp startupKUMAGAI JUN·Filed 2010·Granted Jan 28, 2014·0 cites·18 claims
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