Inventor · disambiguated record
Tetsuo Ishitsuka
Also filed as: ISHITSUKA TETSUO
7 granted patents·3 pending applications·56 citations·filing 1991–2016
83Inventor score
Top patents by PatentIndex Score
10 records- 0185US10738371B2As-rolled type K55 electric resistance welded oil well pipe and hot-rolled steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Aug 11, 2020·2 cites·12 claims
- 0284US8920583B2Steel pipe excellent in deformation characteristics and method of producing the sameASAHI HITOSHI·Filed 2008·Granted Dec 30, 2014·6 cites·1 claims
- 0374US6060180AAlloy having high corrosion resistance in environment of high corrosiveness, steel pipe of the same alloy and method of manufacturing the same steel pipeNIPPON STEEL CORP·Filed 1997·Granted May 9, 2000·19 cites·7 claims
- 0457US5620805AAlloy and multilayer steel tube having corrosion resistance in fuel combustion environment containing V, Na, S and ClNIPPON STEEL CORP·Filed 1995·Granted Apr 15, 1997·18 cites·2 claims
- 0546US2015176101A1Hollow stabilizer, and steel pipe for hollow stabilizers and method of producing the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Application pending·0 cites
- 0645US2009065102A1High Strength Seamless Steel Pipe for Machine Structure Use Superior in Toughness and Weldability, and Method of Production of The SameNIPPON STEEL CORP·Filed 2007·Application pending·0 cites
- 0743US5190832AAlloy and composite steel tube with corrosion resistance in combustion environment where v, na, s and cl are presentNIPPON STEEL CORP·Filed 1991·Granted Mar 2, 1993·7 cites·2 claims
- 0842US10640843B2High strength electric resistance welded steel pipe and method for producing high strength electric resistance welded steel pipeNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted May 5, 2020·0 cites·7 claims
- 0934US2009250146A1High Strength Thick-Gauge Electric-Resistance Welded Steel Pipe Excellent in Hardenability, Hot Workability and Fatigue Strength and Method of Production of the SameISHITSUKA TETSUO·Filed 2006·Application pending·0 cites
- 1033US5194222AAlloy and composite steel tube with corrosion resistance in combustion environment where v, na, s and c1 are presentNIPPON STEEL CORP·Filed 1991·Granted Mar 16, 1993·4 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →