Inventor · disambiguated record
Yoshifumi Tsutai
Also filed as: TSUTAI YOSHIFUMI
5 granted patents·1 pending application·2 citations·filing 2017–2022
63Inventor score
Files withNGK SPARK PLUG CO6
Top patents by PatentIndex Score
6 records- 0169US10508801B2Wavelength conversion member and light-emitting deviceNGK SPARK PLUG CO·Filed 2017·Granted Dec 17, 2019·1 cites·8 claims
- 0267US10590341B2Wavelength conversion member, production method therefor, and light emitting deviceNGK SPARK PLUG CO·Filed 2017·Granted Mar 17, 2020·1 cites·8 claims
- 0357US2022306542A1Yttrium oxide-based sintered body, production method therefor, and member for semiconductor production apparatusNGK SPARK PLUG CO·Filed 2022·Application pending·0 cites
- 0451US11060020B2Wavelength conversion memberNGK SPARK PLUG CO·Filed 2017·Granted Jul 13, 2021·0 cites·5 claims
- 0546US10612762B2Wavelength conversion member, manufacturing method therefor, and light-emitting deviceNGK SPARK PLUG CO·Filed 2017·Granted Apr 7, 2020·0 cites·7 claims
- 0645US10707385B2Wavelength conversion member and light-emitting deviceNGK SPARK PLUG CO·Filed 2017·Granted Jul 7, 2020·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →