Mayumi Okimori

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Hikari, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for vacuum/reduced-pressure refining and facility for vacuum...
- Patent number 6,251,169
- Issue date Jun 26, 2001
- Nippon Steel Corporation
- Kensuke Shimomura
- C21 - METALLURGY OF IRON
Information Patent Grant
Vacuum refining furnace
- Patent number 6,162,387
- Issue date Dec 19, 2000
- Nippon Steel Corporation
- Kensuke Shimomura
- C21 - METALLURGY OF IRON