Hiroyuki Katayama

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Munakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for preheating and melting of scrap and process for the same
- Patent number 5,889,810
- Issue date Mar 30, 1999
- Nippon Steel Corporation
- Hiroyuki Katayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for production of high-manganese iron alloy by smelting red...
- Patent number 4,662,937
- Issue date May 5, 1987
- Nippon Steel Corporation
- Hiroyuki Katayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for production of high-chromium alloy by smelting reduction
- Patent number 4,565,574
- Issue date Jan 21, 1986
- Nippon Steel Corporation
- Hiroyuki Katayama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for producing high chromium steel
- Patent number 4,410,360
- Issue date Oct 18, 1983
- Nippon Steel Corporation
- Hiroyuki Katayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of dephosphorization of metal or alloy
- Patent number 4,198,229
- Issue date Apr 15, 1980
- Nippon Steel Corporation
- Hiroyuki Katayama
- C21 - METALLURGY OF IRON