Eijiro Tamura

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing alloy steel powder
- Patent number 4,448,746
- Issue date May 15, 1984
- Sumitomo Metal Industries, Ltd.
- Toshihiko Kubo
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Oil-atomized low-alloy steel powder
- Patent number 4,437,891
- Issue date Mar 20, 1984
- Sumitomo Metal Industries, Ltd.
- Masahide Umino
- B22 - CASTING POWDER METALLURGY