Assignee
USHIJIMA MASAKAZU
9 granted patents·1 pending application·190 citations·filing 1994–2012
Top patents by PatentIndex Score
10 records- 0193US5495405AInverter circuit for use with discharge tubeUSHIJIMA MASAKAZU·Filed 1994·Granted Feb 27, 1996·123 cites·5 claims
- 0282US7548028B2Current-mode resonant inverter circuitUSHIJIMA MASAKAZU·Filed 2006·Granted Jun 16, 2009·10 cites·19 claims
- 0382US7282868B2Inverter circuit for discharge lamps for multi-lamp lighting and surface light source systemUSHIJIMA MASAKAZU·Filed 2004·Granted Oct 16, 2007·25 cites·6 claims
- 0479US7391166B2Parallel lighting system for surface light source discharge lampsUSHIJIMA MASAKAZU·Filed 2005·Granted Jun 24, 2008·10 cites·4 claims
- 0578US7589478B2Inverter circuit for discharge lamps for multi-lamp lighting and surface light source systemUSHIJIMA MASAKAZU·Filed 2007·Granted Sep 15, 2009·9 cites·19 claims
- 0670US7541749B2Current-mode resonant inverter circuit for discharge lampUSHIJIMA MASAKAZU·Filed 2006·Granted Jun 2, 2009·4 cites·12 claims
- 0768US7453216B2Current resonance type inverter circuit and power controlling methodUSHIJIMA MASAKAZU·Filed 2005·Granted Nov 18, 2008·9 cites·24 claims
- 0852US8102681B2Measurement apparatus, test apparatus, and measurement methodUSHIJIMA MASAKAZU·Filed 2009·Granted Jan 24, 2012·0 cites·27 claims
- 0940US2013170253A1Auxiliary power generation circuitUSHIJIMA MASAKAZU·Filed 2012·Application pending·0 cites
- 1037US7772785B2Parallel lighting system for surface light source discharge lampsUSHIJIMA MASAKAZU·Filed 2008·Granted Aug 10, 2010·0 cites·3 claims
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