Inventor · disambiguated record
Shizuo Igawa
Also filed as: IGAWA SHIZUO
2 granted patents·2 pending applications·0 citations·filing 2009–2021
22Inventor score
Files withSHINETSU HANDOTAI KK4
Top patents by PatentIndex Score
4 records- 0143US2011001219A1Silicon single crystal wafer, method for producing silicon single crystal or method for producing silicon single crystal wafer, and semiconductor deviceSHINETSU HANDOTAI KK·Filed 2009·Application pending·0 cites
- 0242US11761118B2Carbon-doped silicon single crystal wafer and method for manufacturing the sameSHINETSU HANDOTAI KK·Filed 2020·Granted Sep 19, 2023·0 cites·17 claims
- 0341US11959191B2Method for manufacturing silicon single crystal wafer and silicon single crystal waferSHINETSU HANDOTAI KK·Filed 2020·Granted Apr 16, 2024·0 cites·1 claims
- 0439US2023212782A1Method for manufacturing silicon single-crystal substrate and silicon single-crystal substrateSHINETSU HANDOTAI KK·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →