Inventor

SHIMOTSUSA MASATAKA

JP4 patents

Patents

4 patents

US5776267AJul 7, 1998

Spring steel with excellent resistance to hydrogen embrittlement and fatigue

KOBE STEEL LTD68 citations94

US5846344ADec 8, 1998

Spring steel of high strength and high corrosion resistance

KOBE STEEL LTD34 citations90

US5508002AApr 16, 1996

Spring steel of high strength and high corrosion resistance

KOBE STEEL LTD27 citations90

US5286312AFeb 15, 1994

High-strength spring steel

KOBE STEEL LTD30 citations86