Inventor · disambiguated record
Mitsuhiro Okatsu
Also filed as: OKATSU MITSUHIRO
26 granted patents·5 pending applications·31 citations·filing 1995–2021
93Inventor score
Top patents by PatentIndex Score
31 records- 0190US10876182B2High-strength seamless steel pipe for oil country tubular goods and method of producing the sameJFE STEEL CORP·Filed 2015·Granted Dec 29, 2020·2 cites·12 claims
- 0290US10844453B2High-strength seamless steel pipe for oil country tubular goods and method of producing the sameJFE STEEL CORP·Filed 2015·Granted Nov 24, 2020·2 cites·6 claims
- 0389US10640856B2High-strength seamless steel pipe for oil country tubular goods and method of producing the sameJFE STEEL CORP·Filed 2015·Granted May 5, 2020·2 cites·16 claims
- 0489US10472690B2High-strength seamless steel pipe for oil country tubular goods and method of producing the sameJFE STEEL CORP·Filed 2015·Granted Nov 12, 2019·2 cites·16 claims
- 0582US10975450B2Low alloy high strength thick-walled seamless steel pipe for oil country tubular goodsJFE STEEL CORP·Filed 2016·Granted Apr 13, 2021·1 cites·2 claims
- 0677US8765269B2High strength steel pipe for low-temperature usage having excellent buckling resistance and toughness of welded heat affected zone and method for producing the sameSHIMAMURA JUNJI·Filed 2010·Granted Jul 1, 2014·2 cites·15 claims
- 0768US8124247B2High-strength welded steel pipe including weld metal having high cold-cracking resistance and method for manufacturing the sameHAYAKAWA NAOYA·Filed 2008·Granted Feb 28, 2012·4 cites·2 claims
- 0867US11111566B2Low alloy high strength seamless steel pipe for oil country tubular goodsJFE STEEL CORP·Filed 2018·Granted Sep 7, 2021·0 cites·4 claims
- 0965US12227816B2High-strength seamless steel pipe and method for manufacturing sameJFE STEEL CORP·Filed 2020·Granted Feb 18, 2025·0 cites·12 claims
- 1065US8758528B2High-strength steel plate, method of producing the same, and high-strength steel pipeSHIMAMURA JUNJI·Filed 2006·Granted Jun 24, 2014·1 cites·11 claims
- 1162US12252756B2High-strength seamless steel pipe and method for manufacturing sameJFE STEEL CORP·Filed 2020·Granted Mar 18, 2025·0 cites·6 claims
- 1261US12227815B2Seamless steel pipe having desirable sulfuric acid dew-point corrosion resistance, and method for manufacturing sameJFE STEEL CORP·Filed 2020·Granted Feb 18, 2025·0 cites·20 claims
- 1360US2023107887A1Stainless steel seamless pipe for oil country tubular goods and method for manufacturing the sameJFE STEEL CORP·Filed 2021·Application pending·0 cites
- 1459US11505842B2Low-alloy high-strength seamless steel pipe for oil country tubular goodsJFE STEEL CORP·Filed 2018·Granted Nov 22, 2022·0 cites·4 claims
- 1557US11453924B2Low-alloy high-strength seamless steel pipe for oil country tubular goodsJFE STEEL CORP·Filed 2018·Granted Sep 27, 2022·0 cites·4 claims
- 1656US12129954B2Seamless steel pipe having desirable sulfuric acid dew-point corrosion resistance, and method for manufacturing sameJFE STEEL CORP·Filed 2020·Granted Oct 29, 2024·0 cites·6 claims
- 1756US11414733B2Low-alloy high-strength seamless steel pipe for oil country tubular goodsJFE STEEL CORP·Filed 2018·Granted Aug 16, 2022·0 cites·4 claims
- 1854US11313007B2High-strength seamless steel pipe for oil country tubular goods, and method for producing the sameJFE STEEL CORP·Filed 2017·Granted Apr 26, 2022·0 cites·6 claims
- 1953US2009301613A1Low Yield Ratio Dual Phase Steel Linepipe with Superior Strain Aging ResistanceKOO JAYOUNG·Filed 2009·Application pending·0 cites
- 2051US11186885B2High-strength seamless steel pipe for oil country tubular goods, and production method for high-strength seamless steel pipe for oil country tubular goodsJFE STEEL CORP·Filed 2016·Granted Nov 30, 2021·0 cites·4 claims
- 2151US9896748B2Low yield ratio dual phase steel linepipe with superior strain aging resistanceKOO JAYOUNG·Filed 2012·Granted Feb 20, 2018·0 cites·37 claims
- 2248US10920297B2High-strength seamless steel pipe for oil country tubular goods and method of producing the sameJFE STEEL CORP·Filed 2015·Granted Feb 16, 2021·0 cites·16 claims
- 2347US6521057B1High-strength high-toughness steel productsKAWASAKI STEEL CO·Filed 2001·Granted Feb 18, 2003·0 cites·7 claims
- 2446US6299710B1Method of producing a bainite steel productKAWASAKI STEEL CO·Filed 1999·Granted Oct 9, 2001·5 cites·3 claims
- 2546US2019048444A1Low alloy high strength seamless steel pipe for oil country tubular goodsJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 2645US5989366AMethod of manufacturing thick steel product of high strength and high toughness having excellent weldability and minimal variation of structure and physical propertiesKAWASAKI STEEL CO·Filed 1997·Granted Nov 23, 1999·6 cites·11 claims
- 2744US9995669B2Round bar tensile test specimen for sulfide stress corrosion cracking test of a steel, test method for sulfide stress corrosion cracking of steel, and seamless steel pipe having excellent resistance to sulfide stress corrosion crackingJFE STEEL CORP·Filed 2015·Granted Jun 12, 2018·0 cites·4 claims
- 2843US2015007904A1Abrasion resistant welded steel pipe and method of producing the sameJFE STEEL CORP·Filed 2013·Application pending·0 cites
- 2937US2014227549A1Welded steel pipe with excellent welded heat-affected zone toughness and process for producing sameJFE STEEL CORP·Filed 2012·Application pending·0 cites
- 3035US5900076ABainitic steel materials having a less scattering of properties and method of producing the sameKAWASAKI STEEL CO·Filed 1997·Granted May 4, 1999·2 cites·12 claims
- 3134US5766381AMethod of producing bainitic steel materials having a less scattering of propertiesKAWASAKI STEEL CO·Filed 1995·Granted Jun 16, 1998·2 cites·2 claims
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