Yukio Iyama

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Oita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mechanical punching apparatus for copper smelting converter
- Patent number 4,389,044
- Issue date Jun 21, 1983
- Nippon Mining Co., Ltd
- Yukio Iyama
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Method and apparatus for automatically punching the tuyeres of a co...
- Patent number 4,353,530
- Issue date Oct 12, 1982
- Nippon Mining Company Limited
- Yukio Iyama
- C21 - METALLURGY OF IRON
Information Patent Grant
Mechanical punching device for punching the tuyeres of a converter
- Patent number 4,303,229
- Issue date Dec 1, 1981
- Nippon Mining Company Limited
- Yukio Iyama
- F27 - FURNACES KILNS OVENS RETORTS