Inventor · disambiguated record
Shinji Iwatsuka
Also filed as: IWATSUKA SHINJI
36 granted patents·2 pending applications·494 citations·filing 1992–2021
97Inventor score
Top patents by PatentIndex Score
38 records- 0198US9939709B2Optical waveguide element and optical modulator using the sameTDK CORP·Filed 2016·Granted Apr 10, 2018·16 cites·6 claims
- 0297US11086149B2Electro-optic deviceTDK CORP·Filed 2020·Granted Aug 10, 2021·10 cites·5 claims
- 0396US11003044B2Electro-optic deviceTDK CORP·Filed 2020·Granted May 11, 2021·5 cites·16 claims
- 0495US10989980B2Optical modulatorTDK CORP·Filed 2020·Granted Apr 27, 2021·5 cites·9 claims
- 0595US10203583B2Optical waveguide element and optical modulator using the sameTDK CORP·Filed 2018·Granted Feb 12, 2019·5 cites·6 claims
- 0694US10955722B2Optical modulatorTDK CORP·Filed 2020·Granted Mar 23, 2021·3 cites·5 claims
- 0793US5245471APolarizers, polarizer-equipped optical elements, and method of manufacturing the sameTDK CORP·Filed 1992·Granted Sep 14, 1993·128 cites·17 claims
- 0892US11366344B2Optical modulatorTDK CORP·Filed 2018·Granted Jun 21, 2022·5 cites·19 claims
- 0992US9244296B2Optical modulatorTDK CORP·Filed 2014·Granted Jan 26, 2016·13 cites·20 claims
- 1085US11226531B2Optical modulatorTDK CORP·Filed 2018·Granted Jan 18, 2022·2 cites·9 claims
- 1182US10359684B2Optical waveguide element and optical modulator using the sameTDK CORP·Filed 2018·Granted Jul 23, 2019·2 cites·3 claims
- 1282US6359733B1Composite optical element, optical isolator, optical circulator, optical switch and processes for producing themTDK CORP·Filed 2000·Granted Mar 19, 2002·22 cites·5 claims
- 1381US10585328B2Optical waveguide element and optical modulator using the sameTDK CORP·Filed 2019·Granted Mar 10, 2020·1 cites·12 claims
- 1479US11003043B2Optical modulatorFUJITSU OPTICAL COMPONENTS LTD·Filed 2020·Granted May 11, 2021·1 cites·14 claims
- 1579US5691845AOptical isolator, optical isolator with fiber and method for making the sameTDK CORP·Filed 1995·Granted Nov 25, 1997·63 cites·12 claims
- 1672US5499307AOptical isolator and polarization splitter thereforTDK CORP·Filed 1994·Granted Mar 12, 1996·36 cites·12 claims
- 1769US7072111B2Reflection-type optical deviceTDK CORP·Filed 2004·Granted Jul 4, 2006·11 cites·12 claims
- 1866US5477376AOptical attenuators and optical modulators employing magneto-optic elementTDK CORP·Filed 1992·Granted Dec 19, 1995·25 cites·8 claims
- 1965US6621630B2Composite optical element, optical isolator, optical attenuator and processes for producing themTDK CORP·Filed 2001·Granted Sep 16, 2003·20 cites·32 claims
- 2065US5359689AOptical fiber terminal fitted with optical isolator and method of assembling the sameTDK CORP·Filed 1993·Granted Oct 25, 1994·26 cites·15 claims
- 2163US10591801B2Optical modulatorTDK CORP·Filed 2017·Granted Mar 17, 2020·0 cites·7 claims
- 2263US6309557B1Magnetic garnet material and faraday rotator using the sameTDK CORP·Filed 2000·Granted Oct 30, 2001·9 cites·2 claims
- 2363US5640516AFaraday rotatorTDK CORP·Filed 1993·Granted Jun 17, 1997·26 cites·9 claims
- 2461US7444040B2Magneto-optical componentTDK CORP·Filed 2005·Granted Oct 28, 2008·1 cites·13 claims
- 2560US12164185B2Optical modulation elementTDK CORP·Filed 2021·Granted Dec 10, 2024·0 cites·13 claims
- 2659US10649246B2Dielectric thin film-applied substrate and optical modulation element using the sameTDK CORP·Filed 2017·Granted May 12, 2020·0 cites·9 claims
- 2758US12339562B2Optical modulatorTDK CORP·Filed 2021·Granted Jun 24, 2025·0 cites·8 claims
- 2857US6833941B2Magneto-optic optical deviceTDK CORP·Filed 2003·Granted Dec 21, 2004·5 cites·13 claims
- 2955US12085791B2Optical waveguide element and optical modulation elementTDK CORP·Filed 2021·Granted Sep 10, 2024·0 cites·12 claims
- 3054US12174510B2Optical modulation elementTDK CORP·Filed 2021·Granted Dec 24, 2024·0 cites·28 claims
- 3153US6130778AComposite optical element, optical isolator, optical circulator, optical switch and process for producing themTDK CORP·Filed 1998·Granted Oct 10, 2000·14 cites·13 claims
- 3252US5841922AOptical fiber terminal with optical isolator and semiconductor laser module using the sameTDK CORP·Filed 1997·Granted Nov 24, 1998·19 cites·4 claims
- 3348US7002732B2Magneto-optical devicesTDK CORP·Filed 2004·Granted Feb 21, 2006·2 cites·10 claims
- 3445US5500915AOptical fiber terminal pitted with optical isolatorTDK CORP·Filed 1995·Granted Mar 19, 1996·11 cites·9 claims
- 3545US2021103165A1Electro-optic deviceTDK CORP·Filed 2020·Application pending·0 cites
- 3643US2022382118A1Optical modulatorTDK CORP·Filed 2020·Application pending·0 cites
- 3742US5619367AApparatus and method for measuring magnetic fields employing magneto-optic elementTDK CORP·Filed 1995·Granted Apr 8, 1997·8 cites·11 claims
- 3838US6747782B2Faraday rotator and optical attenuatorTDK CORP·Filed 2001·Granted Jun 8, 2004·0 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Shinji Iwatsuka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →