Tatsuya Kutsuwada

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Sapporo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rolling method using rolling guide
- Patent number 6,227,025
- Issue date May 8, 2001
- Kotobuki Sangyo Kabushiki Kaisha
- Tatsuya Kutsuwada
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Guiding method for steel materials to be rolled and roller guide sy...
- Patent number 5,412,970
- Issue date May 9, 1995
- Kotobuki Sangyo Kabushiki Kaisha
- Tadashi Kawamura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...