Inventor · disambiguated record
Tohru Takiguchi
Also filed as: TAKIGUCHI TOHRU
27 granted patents·4 pending applications·454 citations·filing 1991–2015
97Inventor score
Top patents by PatentIndex Score
31 records- 0188US5671242AStrained quantum well structureMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Sep 23, 1997·100 cites·3 claims
- 0288US5459747ASemiconductor optical devicesMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Oct 17, 1995·53 cites·13 claims
- 0382US6618411B1Semiconductor laser elementMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Sep 9, 2003·20 cites·11 claims
- 0482US6583510B2Semiconductor device with varying thickness gold electrodeMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Jun 24, 2003·18 cites·11 claims
- 0579US7675954B2Semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2005·Granted Mar 9, 2010·6 cites·2 claims
- 0679US6674784B2Distributed feedback laser device and method for manufacturing the sameMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Jan 6, 2004·16 cites·6 claims
- 0778US7720123B2Buried type semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2006·Granted May 18, 2010·7 cites·4 claims
- 0875US9042008B2Optical semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2014·Granted May 26, 2015·2 cites·10 claims
- 0975US5991322ASemiconductor optical deviceMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Nov 23, 1999·37 cites·5 claims
- 1074US6455338B1Method of manufacturing an integrated semiconductor laser-modulator deviceMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Sep 24, 2002·39 cites·4 claims
- 1171US6741630B2Ridge waveguide distributed feedback laserMITSUBISHI ELECTRIC CORP·Filed 2002·Granted May 25, 2004·10 cites·8 claims
- 1269US7187701B2Ridge waveguide semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Mar 6, 2007·9 cites·7 claims
- 1369US5544188ASemiconductor laser device having a high emission efficiency and a large modulation bandwidthMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Aug 6, 1996·24 cites·16 claims
- 1466US5452383AOptical switch and method for producing the optical switchMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Sep 19, 1995·22 cites·9 claims
- 1565US7835413B2Semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2008·Granted Nov 16, 2010·2 cites·2 claims
- 1664US7504664B2Semiconductor optical device having an improved current blocking layer and manufacturing method thereofMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Mar 17, 2009·2 cites·13 claims
- 1762US6642075B2Method for manufacturing semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2002·Granted Nov 4, 2003·6 cites·6 claims
- 1860US5771257ALight absorption modulator and integrated semiconductor laser and modulatorMITSUBISHI ELECTRIC CORP·Filed 1996·Granted Jun 23, 1998·23 cites·4 claims
- 1959US8792756B2Optical semiconductor deviceTAKIGUCHI TOHRU·Filed 2012·Granted Jul 29, 2014·1 cites·14 claims
- 2059US6768760B2Ridge-waveguide semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2002·Granted Jul 27, 2004·5 cites·6 claims
- 2158US8233515B2Optical waveguide integrated semiconductor optical deviceTAKIGUCHI TOHRU·Filed 2010·Granted Jul 31, 2012·1 cites·11 claims
- 2252US2013208350A1Optical semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2012·Application pending·0 cites
- 2351US5763287AMethod of fabricating semiconductor optical deviceMITSUBISHI ELECTRIC CORP·Filed 1996·Granted Jun 9, 1998·16 cites·12 claims
- 2450US9147997B2Optical semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Sep 29, 2015·0 cites·7 claims
- 2543US5187378APhotodetectorMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Feb 16, 1993·9 cites·11 claims
- 2642US6277663B1Method of producing semiconductor laser diodeMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Aug 21, 2001·9 cites·9 claims
- 2741US6026106AComposite optical deviceMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Feb 15, 2000·8 cites·8 claims
- 2841US5198370AMethod for producing an infrared detectorMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Mar 30, 1993·9 cites·6 claims
- 2940US2004125841A1Surface-emitting semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2003·Application pending·0 cites
- 3035US2014056556A1Optical semiconductor deviceSASAHATA YOSHIFUMI·Filed 2013·Application pending·0 cites
- 3134US2011317731A1Semiconductor deviceTAKIGUCHI TOHRU·Filed 2011·Application pending·0 cites
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