Inventor · disambiguated record
Koji Nagahashi
Also filed as: NAGAHASHI KOJI
2 granted patents·1 pending application·2 citations·filing 2013–2025
34Inventor score
Top patents by PatentIndex Score
3 records- 0179US10407758B2Steel for oil country tubular goods and method of producing the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Sep 10, 2019·2 cites·5 claims
- 0268US2025362488A1Light absorption anisotropic film, laminate, composite lens, and virtual reality display apparatusFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 0345US10415125B2Thick-wall oil-well steel pipe and production method thereofNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Sep 17, 2019·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →