Yutaka Yoshii

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Iron powder and mixed powder for powder metallurgy as well as metho...
- Patent number 5,458,670
- Issue date Oct 17, 1995
- Kawasaki Steel Corporation
- Kuniaki Ogura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing aluminum nitride powder
- Patent number 4,780,299
- Issue date Oct 25, 1988
- Kawasaki Steel Corporation
- Masato Kumagai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES