Inventor · disambiguated record
Hiroo Ohtani
Also filed as: OHTANI HIROO
8 granted patents·295 citations·filing 1981–1982
89Inventor score
Files withSUMITOMO METAL IND8
Top patents by PatentIndex Score
8 records- 0197US4421571AProcess for making high strength deep well casing and tubing having improved resistance to stress-corrosion crackingSUMITOMO METAL IND·Filed 1982·Granted Dec 20, 1983·59 cites·18 claims
- 0295US4400211AAlloy for making high strength deep well casing and tubing having improved resistance to stress-corrosion crackingSUMITOMO METAL IND·Filed 1982·Granted Aug 23, 1983·69 cites·22 claims
- 0392US4400209AAlloy for making high strength deep well casing and tubing having improved resistance to stress-corrosion crackingSUMITOMO METAL IND·Filed 1982·Granted Aug 23, 1983·49 cites·23 claims
- 0492US4400210AAlloy for making high strength deep well casing and tubing having improved resistance to stress-corrosion crackingSUMITOMO METAL IND·Filed 1982·Granted Aug 23, 1983·49 cites·31 claims
- 0591US4400349AAlloy for making high strength deep well casing and tubing having improved resistance to stress-corrosion crackingSUMITOMO METAL IND·Filed 1982·Granted Aug 23, 1983·45 cites·21 claims
- 0665US4394187AMethod of making steels which are useful in fabricating pressure vesselsSUMITOMO METAL IND·Filed 1981·Granted Jul 19, 1983·14 cites·4 claims
- 0759US4375377ASteels which are useful in fabricating pressure vesselsSUMITOMO METAL IND·Filed 1981·Granted Mar 1, 1983·9 cites·4 claims
- 0826US4344801AHeavy thick high-strength casting having improved weldability and impact propertiesSUMITOMO METAL IND·Filed 1981·Granted Aug 17, 1982·1 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →