Inventor · disambiguated record
Katsutoshi Sumitani
Also filed as: SUMITANI KATSUTOSHI
5 granted patents·1 pending application·41 citations·filing 2002–2013
78Inventor score
Top patents by PatentIndex Score
6 records- 0187US9568126B2Threaded joint for steel pipeNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Feb 14, 2017·3 cites·4 claims
- 0287US7823931B2Tubular threaded jointSUMITOMO METAL IND·Filed 2008·Granted Nov 2, 2010·23 cites·16 claims
- 0373US9205441B2Coating apparatus for applying a UV curable resin to a threaded end of a steel pipeSASAKI MASAYOSHI·Filed 2011·Granted Dec 8, 2015·5 cites·10 claims
- 0454US6698802B2Pipe jointSUMITOMO METAL IND·Filed 2002·Granted Mar 2, 2004·6 cites·5 claims
- 0540US6755444B2Slim-type threaded joint for oil well pipesSUMITOMO METAL IND·Filed 2002·Granted Jun 29, 2004·4 cites·11 claims
- 0632US2003132633A1Joint with tapered threadsFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →