TREA

Toshio Akizuki

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  • Chiba, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Patterned metal plate and production thereof
    • Patent number 4,978,583
    • Issue date Dec 18, 1990
    • Kawasaki Steel Corporation
    • Tsuneyoshi Wakui
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Steel sheets for drawing and ironing worked cans
    • Patent number 4,783,378
    • Issue date Nov 8, 1988
    • Kawasaki Steel Corporation
    • Tsuneyoshi Wakui
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...