Inventor

MOTOMURA HIROHARU

JP3 patents

Patents

3 patents

US5183634AFeb 2, 1993

High strength spring steel

MITSUBISHI STEEL MFG16 citations70

US5951944ASep 14, 1999

Lowly decarburizable spring steel

MITSUBISHI STEEL MFG8 citations68

US5470528ANov 28, 1995

Low decarburization spring steel

MITSUBISHI STEEL MFG0 citations45