发明名称 Deterioration indicator and a product having the same
摘要 A deterioration indicator for a resin mold member in a product includes a deteriorating state checking portion configured to allow evaluation of a deterioration state of the resin mold member. The deteriorating state checking portion includes a material whose weather resistance value, DeltaE, is less than a weather resistance value, DeltaE, of the resin mold member.
申请公布号 US6644236(B2) 申请公布日期 2003.11.11
申请号 US20010809075 申请日期 2001.03.16
申请人 RICOH COMPANY, LTD. 发明人 SAHASHI TOSHIRO
分类号 G01N17/00;G01N17/04;G01N33/44;(IPC1-7):G01N17/00 主分类号 G01N17/00
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