Toshiki Yoshida

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Additive for use in producing spheroidal graphite cast iron
- Patent number 6,126,713
- Issue date Oct 3, 2000
- Hitachi Metals, Ltd.
- Yoshio Igarashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Spheroidal graphite cast iron member having improved mechanical str...
- Patent number 5,346,561
- Issue date Sep 13, 1994
- Hitachi Metals, Ltd.
- Fumio Obata
- C21 - METALLURGY OF IRON