Masao Yamada

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Takaishi, JP

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Patents Grantslast 30 patents

Information Patent Grant
High strength steel strand for prestressed concrete and method for...
- Patent number 5,762,724
- Issue date Jun 9, 1998
- Shinko Kosen Kogyo Kabushiki Kaisha
- Yukio Yamaoka
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel material for a colored spring
- Patent number 5,455,121
- Issue date Oct 3, 1995
- Shinko Kosen Kogyo Kabushiki Kaisha
- Masao Yamada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...