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Katsumi Koyama

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  • Hiratsuka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multistep bending machine
    • Patent number 4,831,862
    • Issue date May 23, 1989
    • Amada Company, Limited
    • Yoshihiko Ohashi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Line position detecting apparatus for detecting a V-shaped indent
    • Patent number 4,803,372
    • Issue date Feb 7, 1989
    • Amada Company, Limited
    • Tadashi Hirata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Bending press
    • Patent number 4,486,841
    • Issue date Dec 4, 1984
    • Amada Company, Limited
    • Katsumi Koyama
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and apparatus for adjusting stroke length of a ram for presses
    • Patent number 4,282,738
    • Issue date Aug 11, 1981
    • Amada Company, Limited
    • Shigenori Kojima
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...