Inventor · disambiguated record
Keiji Takaoka
Also filed as: TAKAOKA KEIJI
16 granted patents·1 pending application·351 citations·filing 1989–2007
94Inventor score
Files withTOSHIBA KK17
Top patents by PatentIndex Score
17 records- 0189US5434426AOptical interconnection deviceTOSHIBA KK·Filed 1993·Granted Jul 18, 1995·70 cites·20 claims
- 0288US6678307B2Semiconductor surface light-emitting deviceTOSHIBA KK·Filed 2002·Granted Jan 13, 2004·31 cites·20 claims
- 0386US5970081AGrating coupled surface emitting deviceTOSHIBA KK·Filed 1997·Granted Oct 19, 1999·72 cites·21 claims
- 0484US7427804B2Optoelectronic semiconductor device and light signal input/output deviceTOSHIBA KK·Filed 2007·Granted Sep 23, 2008·10 cites·5 claims
- 0583US7230278B2Optoelectronic semiconductor device and light signal input/output deviceTOSHIBA KK·Filed 2004·Granted Jun 12, 2007·32 cites·26 claims
- 0682US7244629B2Vertical cavity surface emitting laser diode and method for manufacturing the sameTOSHIBA KK·Filed 2004·Granted Jul 17, 2007·19 cites·15 claims
- 0774US5822349ASemiconductor device and method of manufacturing the sameTOSHIBA KK·Filed 1996·Granted Oct 13, 1998·40 cites·8 claims
- 0871US7068696B2Vertical-cavity surface emitting laser diode and its manufacturing methodTOSHIBA KK·Filed 2003·Granted Jun 27, 2006·10 cites·20 claims
- 0970US5001335ASemiconductor photodetector device and method of manufacturing the sameTOSHIBA KK·Filed 1989·Granted Mar 19, 1991·25 cites·10 claims
- 1067US6661031B2Resonant-cavity light-emitting diode and optical transmission module using the light-emitting diodeTOSHIBA KK·Filed 2002·Granted Dec 9, 2003·14 cites·14 claims
- 1166US6881984B2Resonant-cavity light-emitting diode and optical transmission module using the light-emitting diodeTOSHIBA KK·Filed 2003·Granted Apr 19, 2005·13 cites·7 claims
- 1259US7589282B2Wiring board and a semiconductor device using the sameTOSHIBA KK·Filed 2004·Granted Sep 15, 2009·7 cites·11 claims
- 1355US6653660B2Vertical cavity-type semiconductor light-emitting device and optical module using vertical cavity-type semiconductor light-emitting deviceTOSHIBA KK·Filed 2001·Granted Nov 25, 2003·6 cites·21 claims
- 1450US7463491B2Wiring board and a semiconductor device using the sameTOSHIBA KK·Filed 2007·Granted Dec 9, 2008·0 cites·10 claims
- 1548US6768137B2Laminated semiconductor substrate and optical semiconductor elementTOSHIBA KK·Filed 2003·Granted Jul 27, 2004·2 cites·18 claims
- 1643US7276735B2Laminated semiconductor substrate and optical semiconductor elementTOSHIBA KK·Filed 2004·Granted Oct 2, 2007·0 cites·15 claims
- 1741US2006187997A1Vertical cavity surface emitting laser diodeTOSHIBA KK·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →