Inventor · disambiguated record
Takushi Kazama
Also filed as: KAZAMA TAKUSHI
24 granted patents·8 pending applications·16 citations·filing 2019–2021
91Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE32
Top patents by PatentIndex Score
32 records- 0189US11385521B2Wavelength conversion apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 12, 2022·3 cites·10 claims
- 0284US11852953B2Optical element and manufacturing method thereofNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Dec 26, 2023·2 cites·12 claims
- 0384US11644735B2Wavelength conversion elementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted May 9, 2023·2 cites·4 claims
- 0482US11740537B2Optical signal processing circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 29, 2023·2 cites·8 claims
- 0580US11971644B2Wavelength conversion deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Apr 30, 2024·1 cites·9 claims
- 0677US11442225B2Wavelength conversion element and method for manufacturing wavelength conversion elementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 13, 2022·2 cites·14 claims
- 0775US11415750B2Optical module, optical wiring board, and production method for optical moduleNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 16, 2022·2 cites·7 claims
- 0870US11448838B2Optical component and method for manufacturing sameNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 20, 2022·1 cites·11 claims
- 0967US11892745B2Wavelength conversion element and method for manufacturing sameNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Feb 6, 2024·0 cites·8 claims
- 1067US11500165B2Optical module, optical wiring substrate, and method for manufacturing optical moduleNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 15, 2022·1 cites·6 claims
- 1160US11733584B2Wavelength conversion apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 22, 2023·0 cites·7 claims
- 1259US12007666B2Wavelength conversion element and method for producing sameNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jun 11, 2024·0 cites·13 claims
- 1358US12346000B2Planar optical waveguide device for measuring amplitude phase of squeezed lightNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 1, 2025·0 cites·8 claims
- 1456US12339564B2Wavelength conversion apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jun 24, 2025·0 cites·6 claims
- 1555US11561353B2Optical circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 24, 2023·0 cites·9 claims
- 1653US11815785B2Wavelength conversion optical elementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 14, 2023·0 cites·7 claims
- 1751US11387909B2Optical signal transmitterNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 12, 2022·0 cites·12 claims
- 1849US11768421B2Wavelength conversion deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Sep 26, 2023·0 cites·4 claims
- 1947US11815715B2Planar optical waveguide deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 14, 2023·0 cites·10 claims
- 2047US2024402566A1Wavelength Conversion ApparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2146US11929784B2Wavelength dispersion compensation apparatus and wavelength dispersion compensation methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Mar 12, 2024·0 cites·7 claims
- 2246US2024353733A1Wavelength Conversion DeviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2345US11888528B2Optical communication systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 30, 2024·0 cites·17 claims
- 2444US12085836B2Optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Sep 10, 2024·0 cites·5 claims
- 2544US2024248369A1Optical amplification apparatus and optical amplification methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2644US2024241310A1Wavelength ConverterNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2743US2021181407A1Optical Device and Optical Coupling MethodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 2843US2024152023A1Wavelength Conversion ModuleNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2943US2024152025A1Optical Wavelength Conversion DeviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3042US12153325B2Wavelength converterNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Nov 26, 2024·0 cites·7 claims
- 3142US2022200229A1Optical AmplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 3239US12032269B2Wavelength conversion apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 9, 2024·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →