Susumu Togawa

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Nishinomiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for heat-treating cast iron pipes
- Patent number 4,340,361
- Issue date Jul 20, 1982
- Kubota, Ltd.
- Yoshio Tanaka
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of heat-treating ductile cast iron pipe
- Patent number 4,157,111
- Issue date Jun 5, 1979
- Kubota, Ltd.
- Yoshio Tanaka
- B22 - CASTING POWDER METALLURGY