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  "abstract": "A welding method is executed by a welding system in which identification signs are arranged on a plurality of original workpieces to be used in a welding process, respectively. On the identification signs, identifiers of the respective original workpieces are readable. The welding method includes executing the welding process such that a part or an entire of the identification signs is hidden in a joint surface on which the plurality of original workpieces are joined in the welding process.",
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    "PANASONIC INTELLECTUAL PROPERTY MAN CO LTD"
  ],
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    "HANADA KAZUKI",
    "KATAOKA HISASHI",
    "KOMATSU TAKAMICHI",
    "NAKASHIMA KAZUYUKI"
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  "title": "Welding method, identification sign assignment device, and weldment",
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