Inventor · disambiguated record
Hidehiko Sumitomo
Also filed as: SUMITOMO HIDEHIKO
10 granted patents·143 citations·filing 1982–2002
90Inventor score
Top patents by PatentIndex Score
10 records- 0179US5092393AProcess for producing cold-rolled strips and sheets of austenitic stainless steelNIPPON STEEL CORP·Filed 1990·Granted Mar 3, 1992·20 cites·7 claims
- 0279US4420347AProcess for producing an austenitic stainless steel sheet or stripNIPPON STEEL CORP·Filed 1982·Granted Dec 13, 1983·18 cites·4 claims
- 0378US6827755B2High-toughness and high-strength ferritic steel and method of producing the sameHITACHI LTD·Filed 2002·Granted Dec 7, 2004·12 cites·28 claims
- 0477US5286315AProcess for preparing rollable metal sheet from quenched solidified thin cast sheet as starting materialNIPPON STEEL CORP·Filed 1990·Granted Feb 15, 1994·19 cites·14 claims
- 0569US5411610AHigh-strength stainless steel foil for corrugating and process for producing the sameNIPPON STEEL CORP·Filed 1992·Granted May 2, 1995·14 cites·14 claims
- 0659US5426084AHighly heat-resistant metallic carrier for an automobile catalystNIPPON STEEL CORP·Filed 1992·Granted Jun 20, 1995·19 cites·7 claims
- 0756US5030296AProcess for production of Cr-Ni type stainless steel sheet having excellent surface properties and material qualityNIPPON STEEL CORP·Filed 1989·Granted Jul 9, 1991·8 cites·10 claims
- 0848US5102477AMethod of manufacturing high permeability fe-ni system alloyNIPPON STEEL CORP·Filed 1991·Granted Apr 7, 1992·13 cites·5 claims
- 0945US5394721AMethod of producing permalloy coresNIPPON STEEL CORP·Filed 1993·Granted Mar 7, 1995·12 cites·7 claims
- 1041US4851059ANon-magnetic high hardness austenitic stainless steelNIPPON STEEL CORP·Filed 1988·Granted Jul 25, 1989·8 cites·20 claims
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