Inventor · disambiguated record
Toshitaka Aoyagi
Also filed as: AOYAGI TOSHITAKA
25 granted patents·3 pending applications·425 citations·filing 1988–2009
96Inventor score
Files withMITSUBISHI ELECTRIC CORP28
Top patents by PatentIndex Score
28 records- 0188US5170458AOptical fiber light-amplifier systemMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Dec 8, 1992·63 cites·2 claims
- 0286US5185290AMethod of coating facet of semiconductor optical elementMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Feb 9, 1993·78 cites·19 claims
- 0383US4924474ALaser device with high oscillation efficiencyMITSUBISHI ELECTRIC CORP·Filed 1989·Granted May 8, 1990·30 cites·17 claims
- 0481US5909523AOptical module and method of fabricating optical moduleMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Jun 1, 1999·60 cites·8 claims
- 0581US5638391ASemiconductor laser device and optical disc apparatus provided with the semiclonductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Jun 10, 1997·64 cites·15 claims
- 0667US7733934B2Optical waveguide and semiconductor optical elementMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Jun 8, 2010·3 cites·13 claims
- 0764US6788725B2Semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Sep 7, 2004·7 cites·16 claims
- 0860US7365904B2Optical wavelength converterMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Apr 29, 2008·1 cites·7 claims
- 0957US5790737AOptical semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 1996·Granted Aug 4, 1998·17 cites·9 claims
- 1054US5906753AMethod of making optical semi-conductor deviceMITSUBISHI ELECTRIC CORP·Filed 1997·Granted May 25, 1999·15 cites·9 claims
- 1152US5247203ASemiconductor device mounted on a heat sink with an intervening amorphous semiconductor materialMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Sep 21, 1993·11 cites·16 claims
- 1251US7277465B2Semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2003·Granted Oct 2, 2007·2 cites·8 claims
- 1350US7723666B2Photodiode array configured to increase electrical output power and optical microwave transmission system receiver utilizing the sameMITSUBISHI ELECTRIC CORP·Filed 2005·Granted May 25, 2010·0 cites·5 claims
- 1449US5282219ASemiconductor laser structure having a non-reflection filmMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Jan 25, 1994·12 cites·5 claims
- 1547US5214663ASemiconductor laserMITSUBISHI ELECTRIC CORP·Filed 1992·Granted May 25, 1993·11 cites·21 claims
- 1645US5332695AMethod of manufacturing semi conductor device mounted on a heat sinkMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Jul 26, 1994·8 cites·9 claims
- 1745US2009225804A1Semiconductor laser and method for manufacturing the sameMITSUBISHI ELECTRIC CORP·Filed 2009·Application pending·0 cites
- 1844US5157681AWavelength-tunable distributed Bragg reflector semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Oct 20, 1992·9 cites·32 claims
- 1941US2005123018A1Ridge type distributed feedback semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2004·Application pending·0 cites
- 2040US2005025210A1Semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2004·Application pending·0 cites
- 2139US5550855AOptical modulatorMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Aug 27, 1996·10 cites·11 claims
- 2239US5048037ASemiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Sep 10, 1991·6 cites·15 claims
- 2337US4988404AMethod of producing a primary diffraction gratingMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Jan 29, 1991·5 cites·2 claims
- 2436US5161164ASemiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Nov 3, 1992·4 cites·4 claims
- 2534US5177749ASemiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Jan 5, 1993·3 cites·8 claims
- 2632US5185287AMethod for producing a quantum well structureMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Feb 9, 1993·4 cites·10 claims
- 2732US5025450ASemiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Jun 18, 1991·2 cites·14 claims
- 2829US4868837ASemiconductor laserMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Sep 19, 1989·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →