Koichi Akutsu

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Ibaragi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Feed-water heater comprising low C-Cr-Mo steel components used unde...
- Patent number RE33006
- Issue date Aug 1, 1989
- Hitachi, Ltd.
- Fumio Hataya
- 165 - Heat exchange
Information Patent Grant
Low C-Cr-Mo steel used under wet steam
- Patent number 4,529,454
- Issue date Jul 16, 1985
- Fumio Hataya
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...