Assignee
AZUMA MASAFUMI
JP3 patents
Top patents by PatentIndex Score
US8460481B2Jun 11, 2013
High-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 sheets
AZUMA MASAFUMI9 citations82
US10023947B2Jul 17, 2018
High strength steel plate with ultimate tensile strength of 900 MPa or more excellent in hydrogen embrittlement resistance and method of production of same
AZUMA MASAFUMI0 citations50
US8163108B2Apr 24, 2012
High-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 same
AZUMA MASAFUMI0 citations39