Inventor · disambiguated record
Nobutatsu Koshobu
Also filed as: KOSHOBU Nobutatsu
14 granted patents·7 pending applications·4 citations·filing 2019–2022
83Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE21
Top patents by PatentIndex Score
21 records- 0184US11644735B2Wavelength conversion elementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted May 9, 2023·2 cites·4 claims
- 0282US11740537B2Optical signal processing circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 29, 2023·2 cites·8 claims
- 0360US11733584B2Wavelength conversion apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 22, 2023·0 cites·7 claims
- 0458US12346000B2Planar optical waveguide device for measuring amplitude phase of squeezed lightNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 1, 2025·0 cites·8 claims
- 0557US11835768B2Filling resin and optical waveguide circuit filled with filling resinNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Dec 5, 2023·0 cites·11 claims
- 0656US12339564B2Wavelength conversion apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jun 24, 2025·0 cites·6 claims
- 0755US11960152B2Method for adjusting transmitted wavelength of signal light transmitted through optical waveguide deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Apr 16, 2024·0 cites·8 claims
- 0853US11815785B2Wavelength conversion optical elementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 14, 2023·0 cites·7 claims
- 0949US11768421B2Wavelength conversion deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Sep 26, 2023·0 cites·4 claims
- 1047US11815715B2Planar optical waveguide deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 14, 2023·0 cites·10 claims
- 1147US2025314943A1Wavelength ConverterNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1245US11888528B2Optical communication systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 30, 2024·0 cites·17 claims
- 1344US12085836B2Optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Sep 10, 2024·0 cites·5 claims
- 1444US2023251432A1Optical ModuleNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 1544US2024241310A1Wavelength ConverterNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1643US2024152023A1Wavelength Conversion ModuleNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1743US2024152025A1Optical Wavelength Conversion DeviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1842US12153325B2Wavelength converterNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Nov 26, 2024·0 cites·7 claims
- 1942US2022200229A1Optical AmplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 2039US12032269B2Wavelength conversion apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 9, 2024·0 cites·6 claims
- 2139US2022236482A1Optical Waveguide ChipNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →