Inventor · disambiguated record
Toshikazu Hashimoto
Also filed as: HASHIMOTO TOSHIKAZU
61 granted patents·34 pending applications·565 citations·filing 1988–2025
98Inventor score
Top patents by PatentIndex Score
95 records- 0197US10886321B2Color image-capture element and image capture deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jan 5, 2021·6 cites·8 claims
- 0296US11967603B2Image-capture element and image capture deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Granted Apr 23, 2024·2 cites·5 claims
- 0396US11515352B2Image-capture element and image capture deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Nov 29, 2022·4 cites·15 claims
- 0494US12294013B2Image-capture element and image capture deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2024·Granted May 6, 2025·1 cites·10 claims
- 0590US6222967B1Packaging platform, optical module using the platform, and methods for producing the platform and the moduleNIPPON TELEGRAPH & TELEPHONE·Filed 1998·Granted Apr 24, 2001·110 cites·23 claims
- 0689US7899279B2Optical delay line interferometerNIPPON TELEGRAPH & TELEPHONE·Filed 2009·Granted Mar 1, 2011·23 cites·23 claims
- 0789US5621837AOpto-electronic hybrid integration platform, optical sub-module, opto-electronic hybrid integration circuit and process for fabricating platformNIPPON TELEGRAPH & TELEPHONE·Filed 1994·Granted Apr 15, 1997·86 cites·3 claims
- 0888US10649144B2Optical multiplexing circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2017·Granted May 12, 2020·5 cites·11 claims
- 0987US8150219B2Waveguide-type optical interferometerNASU YUSUKE·Filed 2007·Granted Apr 3, 2012·24 cites·13 claims
- 1087US6027254AOpto-electronic hybrid integration platform, optical sub-module, opto-electronic hybrid integration circuit, and process for fabricating platformNIPPON TELEGRAPH & TELEPHONE·Filed 1996·Granted Feb 22, 2000·77 cites·58 claims
- 1186US11733100B2Polarization imaging systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 22, 2023·2 cites·8 claims
- 1285US8483525B2Optical wavelength multiplexing/demultiplexing circuit, optical module using optical wavelength multiplexing/demultiplexing circuit, and communication systemKITOH TSUTOMU·Filed 2010·Granted Jul 9, 2013·10 cites·17 claims
- 1383US11886005B2Optical multiplexing circuit and light sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 30, 2024·3 cites·5 claims
- 1483US6480639B2Optical moduleNIPPON TELEGRAPH & TELEPHONE·Filed 1998·Granted Nov 12, 2002·62 cites·24 claims
- 1583US2025261456A1Image-capture element and image capture deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2025·Application pending·0 cites
- 1680US11112563B2Optical multiplexing circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Sep 7, 2021·1 cites·5 claims
- 1779US8588560B2Optical 90-degree hybrid circuitSAKAMAKI YOHEI·Filed 2010·Granted Nov 19, 2013·6 cites·4 claims
- 1879US2025120207A1Image capturing element and image capturing apparatus having spectroscopic element arrayNIPPON TELEGRAPH & TELEPHONE·Filed 2024·Application pending·0 cites
- 1978US12401868B2Hyperspectral imaging device capable of acquiring polarization information and optical element thereofNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Granted Aug 26, 2025·1 cites·8 claims
- 2078US11982884B2Optical signal processing deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted May 14, 2024·1 cites·10 claims
- 2178US7856163B2Planar lightwave circuit, design method for wave propagation circuit, and computer programNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Dec 21, 2010·6 cites·13 claims
- 2278US6164836AOpto-electronic hybrid integration platform, optical sub-module, opto-electronic hybrid integration circuit, and process for fabricating platformFiled 1999·Granted Dec 26, 2000·43 cites·8 claims
- 2377US10797817B2Optical signal processing deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2017·Granted Oct 6, 2020·1 cites·11 claims
- 2477US7397977B2Wave transmission medium and waveguide circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Jul 8, 2008·20 cites·55 claims
- 2577US2025366235A1Optical element, image sensor and imaging deviceNTT INC·Filed 2025·Application pending·0 cites
- 2677US2025040267A1Spectral Element Array, Image Sensor and Image ApparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2024·Application pending·0 cites
- 2772US8971677B2Optical 90-degree hybrid circuitSAKAMAKI YOHEI·Filed 2010·Granted Mar 3, 2015·4 cites·6 claims
- 2871US8463097B2Planar lightwave circuit, design method for wave propagation circuit, and computer programSAIDA TAKASHI·Filed 2010·Granted Jun 11, 2013·2 cites·18 claims
- 2968US12087783B2Spectral element array, image sensor and image apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 10, 2024·0 cites·10 claims
- 3068US7245793B2Optical waveguide circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Jul 17, 2007·11 cites·194 claims
- 3167US12364042B2Optical element having both color filter function and lens function, image sensor thereof and imaging deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Granted Jul 15, 2025·0 cites·8 claims
- 3267US12211872B2Image capturing element and image capturing apparatus having spectroscopic element arrayNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 28, 2025·0 cites·8 claims
- 3365US8649640B2Optical 90-degree hybrid circuitSAKAMAKI YOHEI·Filed 2010·Granted Feb 11, 2014·1 cites·4 claims
- 3464US11822206B2Optical signal processing deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 21, 2023·1 cites·8 claims
- 3562US12117712B21 x N optical switchNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Oct 15, 2024·0 cites·14 claims
- 3660US11886004B2Planer lightwave circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 30, 2024·0 cites·7 claims
- 3759US8737779B2Optical wavelength multi/demultiplexerKITOH TSUTOMU·Filed 2010·Granted May 27, 2014·1 cites·22 claims
- 3859US7580597B2Optical functional circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Aug 25, 2009·2 cites·12 claims
- 3957US11768342B2Optical multiplexing circuit and optical sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Sep 26, 2023·0 cites·20 claims
- 4057US4977470ATrack-following control system for magnetic disk driveNEC CORP·Filed 1988·Granted Dec 11, 1990·11 cites·1 claims
- 4156US11543591B2Optical multiplexer and RGB couplerNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 3, 2023·0 cites·9 claims
- 4254US12111559B2Optical switchNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Oct 8, 2024·0 cites·19 claims
- 4354US11740405B2Optical multiplexing circuit and light sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 29, 2023·0 cites·8 claims
- 4453US11886002B2Optical multiplexing circuit and light sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 30, 2024·0 cites·7 claims
- 4553US8554040B2Planar lightwave circuit, design method for wave propagation circuit, and computer programSAIDA TAKASHI·Filed 2012·Granted Oct 8, 2013·0 cites·8 claims
- 4653US8538222B2Planar lightwave circuit, design method for wave propagation circuit, and computer programSAIDA TAKASHI·Filed 2012·Granted Sep 17, 2013·0 cites·8 claims
- 4752US11921397B2Optical switch elementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Mar 5, 2024·0 cites·6 claims
- 4852US11822124B2Optical multiplexing circuit and light sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 21, 2023·0 cites·7 claims
- 4952US11054575B2Optical spectrum shaper and optical signal monitor using sameNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 6, 2021·0 cites·13 claims
- 5051US12197006B2Optical multiplexing circuit and light sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 14, 2025·0 cites·10 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →