Katsukiyo Marukawa

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Ibaragi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gasification process of solid carbonaceous material
- Patent number 4,389,246
- Issue date Jun 21, 1983
- Sumitomo Metal Industries
- Shozo Okamura
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel making process
- Patent number 4,292,073
- Issue date Sep 29, 1981
- Sumitomo Metal Industries, Inc.
- Katsukiyo Marukawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Production of carbon steel and low-alloy steel with bottom blowing...
- Patent number 4,280,838
- Issue date Jul 28, 1981
- Sumitomo Metal Industries, Ltd.
- Katsukiyo Marukawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for treating waste slags
- Patent number 4,225,565
- Issue date Sep 30, 1980
- Tokuyama Soda Company Limited
- Katsukiyo Marukawa
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...