Seiji Oyama

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Fukuoka-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Centrifugally cast composit roll
- Patent number 8,308,622
- Issue date Nov 13, 2012
- Hitachi Metals, Ltd.
- Kiyoshi Furushima
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
CENTRIFUGALLY CAST COMPOSIT ROLL
- Publication number 20090092852
- Publication date Apr 9, 2009
- Hitachi Metals, Ltd.
- Kiyoshi Furushima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...