专利名称：Cylindrical coil and production process
thereof
发明人：Hiroshi Ohmi,Hiroshi Shimizu申请号：US08022199申请日：19930225公开号：US06379755B2公开日：20020430
专利附图：
摘要：An electroless plating reaction catalyst is imparted to a substrate and then thecatalyst is deactivated or removed at desired locations by irradiating with an energybeam to form groove portions in the substrate.
申请人：DENSO CORPORATION
代理机构：Pillsbury Winthrop LLP Intellectual Property Group
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