Osamu Watanabe

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Minoo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing high-purity aluminum
- Patent number 4,469,512
- Issue date Sep 4, 1984
- Showa Aluminum Corporation
- Hideo Shingu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Cast ingot of aluminum alloy available for rolling operation and me...
- Patent number 4,377,425
- Issue date Mar 22, 1983
- Showa Aluminum Ind. K.K.
- Takeshi Otani
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...