Inventor · disambiguated record
Akira Yorifuji
Also filed as: YORIFUJI AKIRA
20 granted patents·4 pending applications·270 citations·filing 1996–2004
95Inventor score
Files withKAWASAKI STEEL CO14JFE STEEL CORP7JFE STEEL CORP A CORP OF JAPAN1KENMOCHI KAZUHITO1SUMITOMO HEAVY INDUSTRIES1
Top patents by PatentIndex Score
24 records- 0194US6006789AMethod of preparing a steel pipe, an apparatus thereof and a steel pipeKAWASAKI STEEL CO·Filed 1996·Granted Dec 28, 1999·32 cites·15 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
- 0387US6331216B1Steel pipe having high ductility and high strength and process for production thereofKAWASAKI STEEL CO·Filed 1998·Granted Dec 18, 2001·41 cites·20 claims
- 0484US6290789B1Ultrafine-grain steel pipe and process for manufacturing the sameKAWASAKI STEEL CO·Filed 1998·Granted Sep 18, 2001·26 cites·16 claims
- 0584US5942132AMethod of and apparatus for producing steel pipesKAWASAKI STEEL CO·Filed 1997·Granted Aug 24, 1999·23 cites·38 claims
- 0681US6202463B1Plug and mandrel bar for seamless steel pipe rolling operation for manufacturing seamless steel pipeKAWASAKI STEEL CO·Filed 1997·Granted Mar 20, 2001·17 cites·7 claims
- 0777US6216511B1Apparatus and method for smoothing a welded seam of steel pipeKAWASAKI STEEL CO·Filed 1998·Granted Apr 17, 2001·16 cites·13 claims
- 0875US6736910B2High 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
- 0972US6755919B2Stainless steel tube for automobile structureJFE STEEL CORP·Filed 2001·Granted Jun 29, 2004·8 cites·3 claims
- 1072US6375059B2Method for smoothing steel pipe seam portionKAWASAKI STEEL CO·Filed 2001·Granted Apr 23, 2002·6 cites·3 claims
- 1171US7018488B2Steel pipe for use in reinforcement of automobile and method for production thereofJFE STEEL CORP·Filed 2001·Granted Mar 28, 2006·8 cites·9 claims
- 1270US5859124ALubricant for use in hot workKAWASAKI STEEL CO·Filed 1997·Granted Jan 12, 1999·22 cites·13 claims
- 1364US5983689ALubricant for use in hot workKAWASAKI STEEL CO·Filed 1998·Granted Nov 16, 1999·18 cites·2 claims
- 1460US5813962AForged roll for rolling a seamless steel pipeKAWASAKI STEEL CO·Filed 1997·Granted Sep 29, 1998·11 cites·16 claims
- 1556US6682829B2Welded steel pipe having excellent hydroformability and method for making the sameJFE STEEL CORP·Filed 2002·Granted Jan 27, 2004·1 cites·13 claims
- 1655US6505491B2Rolling mill and rolling-mill trainSUMITOMO HEAVY INDUSTRIES·Filed 2001·Granted Jan 14, 2003·3 cites·7 claims
- 1747US6723453B2Welded steel pipe having excellent hydroformability and method for making the sameJFE STEEL CORP·Filed 2002·Granted Apr 20, 2004·2 cites·11 claims
- 1845US2004099355A1Method 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
- 1942US7591914B2High-workability steel pipe and method of producing sameJFE STEEL CORP·Filed 2001·Granted Sep 22, 2009·0 cites·12 claims
- 2041US2001027831A1Super fine granular steel pipe and method for producing the sameKAWASAKI STEEL CO·Filed 2001·Application pending·0 cites
- 2140US2006218985A1Tube with high dimensional accuracy, and method and device for manufacturing the tubeKENMOCHI KAZUHITO·Filed 2004·Application pending·0 cites
- 2239US6216520B1Rolling millKAWASAKI STEEL CO·Filed 1999·Granted Apr 17, 2001·3 cites·15 claims
- 2339US2003221753A1Super fine granular steel pipe and method for producing the sameKAWASAKI STEEL CO·Filed 2003·Application pending·0 cites
- 2429US5950310AForged roll for rolling a seamless steel pipe and manufacturing method of sameKAWASAKI STEEL CO·Filed 1998·Granted Sep 14, 1999·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →