Inventor · disambiguated record
Michihiko Iwamoto
Also filed as: IWAMOTO MICHIHIKO
14 granted patents·251 citations·filing 1993–2020
92Inventor score
Files withSUMITOMO METAL IND5NIPPON STEEL & SUMITOMO METAL CORP3NIPPON STEEL CORP2BEIGNEUX SYLVAIN1GOTO KUNIO1
Top patents by PatentIndex Score
14 records- 0192US7494159B2Threaded joint for steel pipesSUMITOMO METAL IND·Filed 2007·Granted Feb 24, 2009·28 cites·14 claims
- 0289US9321982B2Threaded joint for pipesGOTO KUNIO·Filed 2010·Granted Apr 26, 2016·8 cites·10 claims
- 0387US7823931B2Tubular threaded jointSUMITOMO METAL IND·Filed 2008·Granted Nov 2, 2010·23 cites·16 claims
- 0485US11067205B2Threaded connection for steel pipeNIPPON STEEL CORP·Filed 2018·Granted Jul 20, 2021·6 cites·15 claims
- 0585US5687999AThreaded joint for tubesVALLOUREC OIL & GAS·Filed 1995·Granted Nov 18, 1997·82 cites·13 claims
- 0684US5402688AMethod and apparatus for determining the tightened condition of a pipe jointSUMITOMO METAL IND·Filed 1993·Granted Apr 4, 1995·67 cites·10 claims
- 0781US11248725B2Threaded connectionNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Feb 15, 2022·3 cites·6 claims
- 0878US9568125B2Threaded joint for steel pipesYAMAGUCHI SUGURU·Filed 2010·Granted Feb 14, 2017·8 cites·26 claims
- 0969US6286223B1Apparatus and method of measuring outer diameter of worked portion at pipe endSUMITOMO METAL IND·Filed 2000·Granted Sep 11, 2001·16 cites·11 claims
- 1067US7997627B2Threaded joint for steel pipesSUMITOMO METAL IND·Filed 2005·Granted Aug 16, 2011·5 cites·21 claims
- 1161US9605781B2Threaded connection comprising at least one threaded element with an end lip for a metal tubeBEIGNEUX SYLVAIN·Filed 2008·Granted Mar 28, 2017·5 cites·17 claims
- 1257US10626345B2Threaded joint for pipesNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Apr 21, 2020·0 cites·16 claims
- 1351US11149882B2Threaded connectionNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Oct 19, 2021·0 cites·12 claims
- 1436US11703163B2Threaded connection for steel pipeNIPPON STEEL CORP·Filed 2020·Granted Jul 18, 2023·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →