Inventor · disambiguated record
Kazumi Wada
Also filed as: WADA KAZUMI
39 granted patents·8 pending applications·769 citations·filing 1994–2021
98Inventor score
Top patents by PatentIndex Score
47 records- 0196US6812495B2Ge photodetectorsMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Nov 2, 2004·113 cites·13 claims
- 0295US7723754B2Ge photodetectorsMASSACHUSETTS INST TECHNOLOGY·Filed 2005·Granted May 25, 2010·25 cites·22 claims
- 0393US10571335B2Methods and apparatus for spectral imagingMASSACHUSETTS INST TECHNOLOGY·Filed 2019·Granted Feb 25, 2020·7 cites·26 claims
- 0493US6697551B2Mode transformer between low index difference waveguide and high index difference waveguideMASSACHUSETTS INST TECHNOLOGY·Filed 2001·Granted Feb 24, 2004·57 cites·44 claims
- 0593US6690871B2Graded index waveguideMASSACHUSETTS INST TECHNOLOGY·Filed 2001·Granted Feb 10, 2004·65 cites·31 claims
- 0692US6631225B2Mode coupler between low index difference waveguide and high index difference waveguideMASSACHUSETTS INST TECHNOLOGY·Filed 2001·Granted Oct 7, 2003·70 cites·42 claims
- 0791US10240980B2Methods and apparatus for spectral imagingHU JUEJUN·Filed 2017·Granted Mar 26, 2019·8 cites·30 claims
- 0891US6850683B2Low-loss waveguide and method of making sameMASSACHUSETTS INST TECHNOLOGY·Filed 2001·Granted Feb 1, 2005·50 cites·43 claims
- 0990US6621972B2Optical waveguides with trench structuresMASSACHUSETTS INST TECHNOLOGY·Filed 2001·Granted Sep 16, 2003·53 cites·21 claims
- 1089US6946318B2Method of forming GE photodetectorsMASSACHUSETTS INST TECHNOLOGY·Filed 2004·Granted Sep 20, 2005·38 cites·32 claims
- 1187US7103245B2High density integrated optical chipMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Sep 5, 2006·44 cites·33 claims
- 1283US11067754B2Simultaneous electrical and optical connections for flip chip assemblyMASSACHUSETTS INST TECHNOLOGY·Filed 2020·Granted Jul 20, 2021·2 cites·33 claims
- 1383US7123805B2Multiple oxidation smoothing method for reducing silicon waveguide roughnessMASSACHUSETTS INST TECHNOLOGY·Filed 2004·Granted Oct 17, 2006·25 cites·44 claims
- 1482US7190524B2Process for fabrication of high reflectors by reversal of layer sequence and application thereofMASSACHUSETTS INST TECHNOLOGY·Filed 2004·Granted Mar 13, 2007·26 cites·11 claims
- 1582US6743974B2Silicon solar cell with germanium backside solar cellMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Jun 1, 2004·28 cites·7 claims
- 1680US7043120B2Array waveguide gratingMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted May 9, 2006·22 cites·24 claims
- 1780US6904187B2Method of efficient carrier generation in silicon waveguide systems for switching/modulating purposes using parallel pump and signal waveguidesMASSACHUSETTS INST TECHNOLOGY·Filed 2003·Granted Jun 7, 2005·26 cites·24 claims
- 1874US7251402B2Anti-reflection coating for the pass-band of photonic bandgap crystalMASSACHUSETTS INST TECHNOLOGY·Filed 2005·Granted Jul 31, 2007·6 cites·14 claims
- 1973US7310454B2Photonic bandgap modulator, amplifier, demux, and TDM devicesMASSACHUSETTS INST TECHNOLOGY·Filed 2004·Granted Dec 18, 2007·13 cites·16 claims
- 2071US11204327B2Amorphous germanium waveguides for spectroscopic sensing and data communication applicationsMASSACHUSETTS INST TECHNOLOGY·Filed 2019·Granted Dec 21, 2021·1 cites·21 claims
- 2171US7065271B2Optical grating couplerINTEL CORP·Filed 2002·Granted Jun 20, 2006·10 cites·7 claims
- 2268US7146074B2Optical grating couplerINTEL CORP·Filed 2004·Granted Dec 5, 2006·8 cites·7 claims
- 2366US8716836B2Semiconductor wafer, semiconductor wafer manufacturing method, and electronic deviceTAKADA TOMOYUKI·Filed 2008·Granted May 6, 2014·2 cites·34 claims
- 2466US6750393B2Back reflector of solar cellsMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Jun 15, 2004·11 cites·20 claims
- 2565US11604147B2Amorphous germanium waveguides for spectroscopic sensing and data communication applicationsMASSACHUSETTS INST TECHNOLOGY·Filed 2021·Granted Mar 14, 2023·0 cites·20 claims
- 2665US8472489B2Light emitting deviceWADA KAZUMI·Filed 2008·Granted Jun 25, 2013·4 cites·8 claims
- 2764US7120335B2Vertically and laterally confined 3D optical couplerMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Oct 10, 2006·8 cites·16 claims
- 2864US6832027B2Interleavers for AWGsMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Dec 14, 2004·8 cites·10 claims
- 2962US6859321B2Low voltage tunable photonic crystal with large defects as wavelength routingMASSACHUSETTS INST TECHNOLOGY·Filed 2003·Granted Feb 22, 2005·7 cites·44 claims
- 3059US7787176B2On-chip optical amplifierMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Aug 31, 2010·5 cites·1 claims
- 3158US7239762B2Light modulation using the Franz-Keldysh effectMASSACHUSETTS INST TECHNOLOGY·Filed 2002·Granted Jul 3, 2007·6 cites·18 claims
- 3257US7715676B2Optical grating couplerINTEL CORP·Filed 2006·Granted May 11, 2010·1 cites·15 claims
- 3356US7006734B2Optical waveguide Y-branch splitterINTEL CORP·Filed 2003·Granted Feb 28, 2006·5 cites·27 claims
- 3454US2011030779A1Silicon solar cellUNIV TOKYO·Filed 2009·Application pending·0 cites
- 3551US6944368B2Waveguide-to-semiconductor device couplerMASSACHUSETTS INST TECHNOLOGY·Filed 2003·Granted Sep 13, 2005·2 cites·16 claims
- 3650US6805276B2Deposit metal welding methodECI·Filed 2002·Granted Oct 19, 2004·3 cites·13 claims
- 3748US2011012175A1Semiconductor wafer, semiconductor wafer manufacturing method, and electronic deviceSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 3848US2011006399A1Semiconductor wafer and semiconductor wafer manufacturing methodSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 3947US7812423B2Optical device comprising crystalline semiconductor layer and reflective elementMASSACHUSETTS INST TECHNOLOGY·Filed 2004·Granted Oct 12, 2010·2 cites·36 claims
- 4040US5396082ASemiconductor substrate and device with a surface layer structureNIPPON TELEGRAPH & TELEPHONE·Filed 1994·Granted Mar 7, 1995·8 cites·27 claims
- 4140US2004008968A1Photosensitive optical glassL3 OPTICS INC·Filed 2002·Application pending·0 cites
- 4239US7238412B2Thermally and electrically conducting high index contrast multi-layer mirrors and devicesMASSACHUSETTS INST TECHNOLOGY·Filed 2001·Granted Jul 3, 2007·0 cites·13 claims
- 4338US7352934B2Three dimensional high index optical waveguides bends and splittersMASSACHUSETTS INST TECHNOLOGY·Filed 2001·Granted Apr 1, 2008·0 cites·34 claims
- 4438US2004201100A1Integrated optical receiverFiled 2003·Application pending·0 cites
- 4538US2003179981A1Tunable inorganic dielectric microresonatorsLNL TECHNOLOGIES INC·Filed 2002·Application pending·0 cites
- 4637US2007286952A1Method and Structure of Strain Control of Sige Based Photodetectors and ModulatorsLIU JIFENG·Filed 2004·Application pending·0 cites
- 4736US2005081910A1High efficiency tandem solar cells on silicon substrates using ultra thin germanium buffer layersFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →