Inventor
Kazumi Wada
Inventor
Lexington, MA, US
Overview
Patents· 36 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus34%
B82YSpecific uses or applications of nanostructures8%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%
H10DInorganic electric semiconductor devices7%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h105%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
PatentTitleYear
10,571,335Methods and apparatus for spectral imaging202010,240,980Methods and apparatus for spectral imaging20198,716,836'Semiconductor wafer, semiconductor wafer manufacturing method, and electronic device'20148,472,489'Light emitting device'20137,812,423'Optical device comprising crystalline semiconductor layer and reflective element'20107,787,176'On-chip optical amplifier'20107,723,754'Ge photodetectors'20107,715,676'Optical grating coupler'20107,352,934'Three dimensional high index optical waveguides bends and splitters'20087,310,454'Photonic bandgap modulator, amplifier, demux, and TDM devices'20077,251,402'Anti-reflection coating for the pass-band of photonic bandgap crystal'20077,238,412'Thermally and electrically conducting high index contrast multi-layer mirrors and devices'20077,239,762'Light modulation using the Franz-Keldysh effect'20077,190,524'Process for fabrication of high reflectors by reversal of layer sequence and application thereof'20077,146,074'Optical grating coupler'20067,123,805'Multiple oxidation smoothing method for reducing silicon waveguide roughness'20067,120,335'Vertically and laterally confined 3D optical coupler'20067,103,245'High density integrated optical chip'20067,065,271'Optical grating coupler'20067,043,120'Array waveguide grating'20067,006,734'Optical waveguide Y-branch splitter'20066,946,318'Method of forming GE photodetectors'20056,944,368'Waveguide-to-semiconductor device coupler'20056,904,187'Method of efficient carrier generation in silicon waveguide systems for switching/modulating purposes using parallel pump and signal waveguides'20056,859,321'Low voltage tunable photonic crystal with large defects as wavelength routing'20056,850,683'Low-loss waveguide and method of making same'20056,832,027'Interleavers for AWGs'20046,812,495'Ge photodetectors'20046,805,276'Deposit metal welding method'20046,750,393'Back reflector of solar cells'20046,743,974'Silicon solar cell with germanium backside solar cell'20046,697,551'Mode transformer between low index difference waveguide and high index difference waveguide'20046,690,871'Graded index waveguide'20046,631,225'Mode coupler between low index difference waveguide and high index difference waveguide'20036,621,972'Optical waveguides with trench structures'20035,396,082'Semiconductor substrate and device with a surface layer structure'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003–2020Patents assigned to MASSACHUSETTS INST TECHNOLOGY (29)· patent assignee history
2003–2020Based in Lexington, MA, US· patent location history
2006–2010Patents assigned to INTEL CORP (4)· patent assignee history
2006Based in Cambridge, MA, US· patent location history
2006Based in Lexongton, MA, US· patent location history
2013–2019Patents assigned to WADA KAZUMI (3)· patent assignee history
2013–2014Patents assigned to UNIV TOKYO (2)· patent assignee history
2013Based in Tokyo, JP· patent location history
2014Based in Bunkyo-ku, JP· patent location history
2019Patents assigned to AGARWAL ANURADHA MURTHY (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MASSACHUSETTS INST TECHNOLOGY | 29 | 2003–2020 |
| INTEL CORP | 4 | 2006–2010 |
| WADA KAZUMIself | 3 | 2013–2019 |
| UNIV TOKYO | 2 | 2013–2014 |
| AGARWAL ANURADHA MURTHY | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lexington, Massachusetts, US | 30 | 2003–2020 |
| Bunkyo-ku, JP | 1 | 2014 |
| Tokyo, JP | 1 | 2013 |
| Cambridge, Massachusetts, US | 1 | 2006 |
| Lexongton, Massachusetts, US | 1 | 2006 |