Inventor · disambiguated record
Ken Sunakawa
Also filed as: SUNAKAWA KEN
3 granted patents·1 pending application·25 citations·filing 1998–2021
59Inventor score
Files withSHINETSU HANDOTAI KK4
Top patents by PatentIndex Score
4 records- 0155US6140131AMethod and apparatus for detecting heavy metals in silicon wafer bulk with high sensitivitySHINETSU HANDOTAI KK·Filed 1998·Granted Oct 31, 2000·25 cites·20 claims
- 0242US11761118B2Carbon-doped silicon single crystal wafer and method for manufacturing the sameSHINETSU HANDOTAI KK·Filed 2020·Granted Sep 19, 2023·0 cites·17 claims
- 0339US11408092B2Method for heat-treating silicon single crystal waferSHINETSU HANDOTAI KK·Filed 2018·Granted Aug 9, 2022·0 cites·4 claims
- 0439US2023212782A1Method for manufacturing silicon single-crystal substrate and silicon single-crystal substrateSHINETSU HANDOTAI KK·Filed 2021·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →