专利名称：Midsole having hard portion and soft
portion
发明人：Chung-Hu Hsiao申请号：US09963399申请日：20010927
公开号：US20030056397A1公开日：20030327
专利附图：
摘要：A midsole has a hard portion and at least one soft portion. The hard portion ofthe midsole can support the shoe into a predetermined shape and the soft portion of themidsole will provide a bendable capacity for facilitating walking. The midsole is made by
double tube injection molding method. Thus, the material capacity of the portion of thehard portion connecting with the soft portion will change gradually from the hardportion to the soft portion to provide a strong structure of the midsole.
申请人：TRONJEN TECHNOLOGY INC.
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