Assignee
AZUMA MASAFUMI
JP·3 granted patents·9 citations·filing 2009–2010
Top patents by PatentIndex Score
3 records- 0189US8460481B2High-strength steel sheet and galvanized steel sheet having very good balance between hole expansibility and ductility, and also excellent in fatigue resistance, and methods of producing the steel sheetsAZUMA MASAFUMI·Filed 2009·Granted Jun 11, 2013·9 cites·10 claims
- 0256US10023947B2High strength steel plate with ultimate tensile strength of 900 MPa or more excellent in hydrogen embrittlement resistance and method of production of sameAZUMA MASAFUMI·Filed 2010·Granted Jul 17, 2018·0 cites·14 claims
- 0351US8163108B2High-strength cold-rolled steel sheet, high-strength galvanized steel sheet, and high-strength alloyed hot-dip galvanized steel sheet having excellent formability and weldability, and methods for manufacturing the sameAZUMA MASAFUMI·Filed 2009·Granted Apr 24, 2012·0 cites·6 claims
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