Inventor · disambiguated record
Takatoshi Okabe
Also filed as: OKABE TAKATOSHI
33 granted patents·19 pending applications·185 citations·filing 1996–2023
96Inventor score
Files withJFE STEEL CORP40KAWASAKI STEEL CO5KENMOCHI KAZUHITO3ARATANI MASATOSHI2JFE STEEL CORP A CORP OF JAPAN1
Top patents by PatentIndex Score
52 records- 0189US11484927B2Clad welded pipe or tube and method of producing sameJFE STEEL CORP·Filed 2017·Granted Nov 1, 2022·4 cites·12 claims
- 0289US6749954B2Welded steel pipe having excellent hydroformability and method for making the sameJFE STEEL CORP·Filed 2002·Granted Jun 15, 2004·25 cites·10 claims
- 0388US7236255B2Method and instrument for measuring bead cutting shape of electric welded tubeJFE STEEL CORP·Filed 2003·Granted Jun 26, 2007·17 cites·6 claims
- 0487US6331216B1Steel pipe having high ductility and high strength and process for production thereofKAWASAKI STEEL CO·Filed 1998·Granted Dec 18, 2001·41 cites·20 claims
- 0585US11053564B2High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wellsJFE STEEL CORP·Filed 2015·Granted Jul 6, 2021·2 cites·10 claims
- 0685US9841124B2High-strength thick-walled electric resistance welded steel pipe having excellent low-temperature toughness and method of manufacturing the sameJFE STEEL CORP·Filed 2013·Granted Dec 12, 2017·4 cites·8 claims
- 0784US10724670B2Method of producing electric-resistance-welded stainless clad steel pipe or tubeJFE STEEL CORP·Filed 2017·Granted Jul 28, 2020·3 cites·5 claims
- 0884US6290789B1Ultrafine-grain steel pipe and process for manufacturing the sameKAWASAKI STEEL CO·Filed 1998·Granted Sep 18, 2001·26 cites·16 claims
- 0983US11079045B2Electric resistance welded clad steel pipe or tube and method of producing sameJFE STEEL CORP·Filed 2017·Granted Aug 3, 2021·2 cites·20 claims
- 1083US9873164B2Electric resistance welded steel pipe or steel tube having excellent HIC resistance and low-temperature toughness in electric resistance welded part, and method for manufacturing the sameJFE STEEL CORP·Filed 2013·Granted Jan 23, 2018·3 cites·4 claims
- 1181US11945020B2Metal pipe and method for manufacturing metal pipeJFE STEEL CORP·Filed 2020·Granted Apr 2, 2024·1 cites·10 claims
- 1281US10844993B2Electric-resistance-welded stainless clad steel pipe or tubeJFE STEEL CORP·Filed 2020·Granted Nov 24, 2020·1 cites·2 claims
- 1379US10584405B2Electric resistance welded steel pipe and manufacturing method thereforJFE STEEL CORP·Filed 2015·Granted Mar 10, 2020·2 cites·8 claims
- 1475US6736910B2High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the sameJFE STEEL CORP·Filed 2001·Granted May 18, 2004·7 cites·6 claims
- 1573US10385417B2Heavy wall electric resistance welded steel pipe for line pipe and method for manufacturing the sameJFE STEEL CORP·Filed 2014·Granted Aug 20, 2019·1 cites·24 claims
- 1673US7471400B2Measurement method and device for bead cutting shape in electric resistance welded pipesJFE STEEL CORP·Filed 2007·Granted Dec 30, 2008·2 cites·11 claims
- 1772US12383989B2TIG welding filler metal and method for producing weld joint using the sameJFE STEEL CORP·Filed 2021·Granted Aug 12, 2025·0 cites·14 claims
- 1872US6755919B2Stainless steel tube for automobile structureJFE STEEL CORP·Filed 2001·Granted Jun 29, 2004·8 cites·3 claims
- 1971US9000320B2Method of manufacturing electric resistance welding pipe having excellent characterization of welded seamKENMOCHI KAZUHITO·Filed 2006·Granted Apr 7, 2015·3 cites·7 claims
- 2071US7018488B2Steel pipe for use in reinforcement of automobile and method for production thereofJFE STEEL CORP·Filed 2001·Granted Mar 28, 2006·8 cites·9 claims
- 2168US12139780B2Hot-rolled steel sheet for electric resistance welded steel pipe and method for manufacturing the same, electric resistance welded steel pipe and method for manufacturing the same, line pipe, and building structureJFE STEEL CORP·Filed 2020·Granted Nov 12, 2024·0 cites·16 claims
- 2266US2025153281A1Straight polarity mag-welding wire and straight polarity mag-welding method using sameJFE STEEL CORP·Filed 2023·Application pending·0 cites
- 2364US7619750B2Measurement method and device for bead cutting shape in electric resistance welded pipesJFE STEEL CORP·Filed 2008·Granted Nov 17, 2009·1 cites·5 claims
- 2463US2025178116A1Electric resistance welded pipe or tube and method of producing sameJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2562US2024149365A1Gas-shielded arc welding method, welded joint, and welded joint production methodJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2662US2025065432A1Submerged arc welding methodJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2762US2024227088A9Tig welded jointJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2860US2024351147A1Metal-cored wire for submerged arc welding and submerged arc welding method using the sameJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2958US8296932B2Manufacturing equipment for electric resistance welding pipes having excellent characterization for welded seamKENMOCHI KAZUHITO·Filed 2006·Granted Oct 30, 2012·1 cites·6 claims
- 3057US2024051070A1Submerged arc welded jointJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 3156US6682829B2Welded steel pipe having excellent hydroformability and method for making the sameJFE STEEL CORP·Filed 2002·Granted Jan 27, 2004·1 cites·13 claims
- 3255US10744589B2Method of monitoring manufacturing status of electric resistance welded pipe, device for monitoring manufacturing status of electric resistance welded pipe, and method of manufacturing electric resistance welded pipeJFE STEEL CORP·Filed 2016·Granted Aug 18, 2020·0 cites·4 claims
- 3355US6949728B2Impeder for manufacturing welded pipeJFE STEEL CORP·Filed 2001·Granted Sep 27, 2005·5 cites·4 claims
- 3455US2024033861A1Submerged arc welding wire and method for producing weld joint using the sameJFE STEEL CORP·Filed 2021·Application pending·0 cites
- 3552US5837956AMethod of fabricating high strength and high toughness large-diameter welded steel pipeKAWASAKI STEEL CO·Filed 1996·Granted Nov 17, 1998·15 cites·2 claims
- 3649US9551047B2High-strength electric-resistance-welded steel pipe of excellent long-term softening resistance in intermediate temperature rangesJFE STEEL CORP·Filed 2013·Granted Jan 24, 2017·0 cites·4 claims
- 3748US2015368768A1Electric Resistance Welded Steel PipeJFE STEEL CORP·Filed 2014·Application pending·0 cites
- 3847US6723453B2Welded steel pipe having excellent hydroformability and method for making the sameJFE STEEL CORP·Filed 2002·Granted Apr 20, 2004·2 cites·11 claims
- 3947US2016045974A1Open-pipe weld shielding system for electric resistance welded steel pipe or tubeJFE STEEL CORP·Filed 2014·Application pending·0 cites
- 4046US2015368737A1Hot-rolled steel sheet for high strength linepipe having tensile strength of 540 mpa or moreJFE STEEL CORP·Filed 2014·Application pending·0 cites
- 4146US2015368736A1Hot-rolled steel sheet for high strength linepipeJFE STEEL CORP·Filed 2014·Application pending·0 cites
- 4245US8328957B2Electric resistance welded steel pipe with excellent weld toughness for line pipeYOKOYAMA HIROYASU·Filed 2007·Granted Dec 11, 2012·0 cites·18 claims
- 4345US2004099355A1Method of producing high-carbon steel pipe having superior cold workability and induction hardenabilityJFE STEEL CORP A CORP OF JAPAN·Filed 2003·Application pending·0 cites
- 4444US8912462B2Method of manufacturing electric resistance welding pipes having excellent characterization of welded seamsKENMOCHI KAZUHITO·Filed 2006·Granted Dec 16, 2014·0 cites·19 claims
- 4544US2015275339A1High-carbon steel tube having superior cold workability, machinability, and hardenability and method for manufacturing the sameARATANI MASATOSHI·Filed 2012·Application pending·0 cites
- 4642US7591914B2High-workability steel pipe and method of producing sameJFE STEEL CORP·Filed 2001·Granted Sep 22, 2009·0 cites·12 claims
- 4742US2018243809A1Electric resistance welded stainless clad steel pipe and method of manufacturing the sameJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 4841US2018030557A1High-strength electric resistance welded steel pipe and method for producing the sameJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 4941US2001027831A1Super fine granular steel pipe and method for producing the sameKAWASAKI STEEL CO·Filed 2001·Application pending·0 cites
- 5040US2013126036A1Electric resistance welded steel pipe with excellent torsion fatigue resistance and method for manufacturing the sameARATANI MASATOSHI·Filed 2011·Application pending·0 cites
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →