Inventor · disambiguated record
Kotaro Sumi
Also filed as: SUMI KOTARO
1 granted patent·1 pending application·0 citations·filing 2017–2021
10Inventor score
Files withSHIN ETSU QUARTZ PROD CO LTD2
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2 records- 0139US2022017404A1Large-sized hollow porous quartz glass preform and method of manufacturing the sameSHIN ETSU QUARTZ PROD CO LTD·Filed 2021·Application pending·0 cites
- 0236US11401192B2Method for producing hollow porous quartz glass base materialSHIN ETSU QUARTZ PROD CO LTD·Filed 2017·Granted Aug 2, 2022·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →