Inventor · disambiguated record
Kazuaki Otsuka
Also filed as: OTSUKA KAZUAKI
5 granted patents·3 pending applications·34 citations·filing 1992–2008
76Inventor score
Top patents by PatentIndex Score
8 records- 0175US7201858B2Fluorescent substance, method of manufacturing fluorescent substance, and light emitting device using the fluorescent substanceTOSHIBA MATERIALS CO LTD·Filed 2006·Granted Apr 10, 2007·7 cites·20 claims
- 0271US7808007B2Optical semiconductor deviceTOSHIBA KK·Filed 2008·Granted Oct 5, 2010·7 cites·20 claims
- 0358US5321716ADistributed Feedback semiconductor laser with controlled phase shiftTOSHIBA KK·Filed 1992·Granted Jun 14, 1994·18 cites·10 claims
- 0450US8106579B2Semiconductor light emitting deviceOTSUKA KAZUAKI·Filed 2007·Granted Jan 31, 2012·2 cites·8 claims
- 0543US2006076569A1Semiconductor light emitting deviceTOSHIBA KK·Filed 2005·Application pending·0 cites
- 0641US7611780B2Lighting device, image pickup apparatus and portable terminal unitTOSHIBA KK·Filed 2006·Granted Nov 3, 2009·0 cites·19 claims
- 0740US2007090381A1Semiconductor light emitting deviceTOSHIBA KK·Filed 2006·Application pending·0 cites
- 0839US2007057618A1Semiconductor Light Emitting DeviceOTSUKA KAZUAKI·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →