Inventor · disambiguated record
Ryuichi Imai
Also filed as: IMAI RYUICHI
11 granted patents·1 pending application·63 citations·filing 2005–2015
89Inventor score
Top patents by PatentIndex Score
12 records- 0191US7883118B2Threaded joint for steel pipesSUMITOMO METAL IND·Filed 2006·Granted Feb 8, 2011·8 cites·11 claims
- 0290US7866706B2Threaded joint for steel pipeSUMITOMO METAL IND·Filed 2005·Granted Jan 11, 2011·13 cites·7 claims
- 0390US7770935B2Threaded joint for steel pipesSUMITOMO METAL IND·Filed 2006·Granted Aug 10, 2010·13 cites·9 claims
- 0489US9321982B2Threaded joint for pipesGOTO KUNIO·Filed 2010·Granted Apr 26, 2016·8 cites·10 claims
- 0584US8420581B2Threaded joint for pipes having a lubricating coatingGOTO KUNIO·Filed 2010·Granted Apr 16, 2013·6 cites·15 claims
- 0675US8276946B2Threaded joint for steel tubesKIMOTO MASANARI·Filed 2009·Granted Oct 2, 2012·3 cites·12 claims
- 0768US8586644B2Photocurable composition suitable for rust prevention of a threaded joint for steel pipesNAGAREO TOMOMITSU·Filed 2011·Granted Nov 19, 2013·5 cites·13 claims
- 0868US7066209B2Thread protectorSUMITOMO METAL IND·Filed 2005·Granted Jun 27, 2006·5 cites·12 claims
- 0964US8409718B2Threaded joint for steel pipesGOTO KUNIO·Filed 2010·Granted Apr 2, 2013·1 cites·9 claims
- 1059US8741406B2Oil well pipe with threaded jointGOTO KUNIO·Filed 2011·Granted Jun 3, 2014·1 cites·2 claims
- 1157US10626345B2Threaded joint for pipesNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Apr 21, 2020·0 cites·16 claims
- 1252US2009264326A1Lubricating coating composition suitable for tubular threaded jointsIMAI RYUICHI·Filed 2009·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →