发明名称 Racket frame
摘要 A racket frame including a first laminate composed of a plurality of first prepregs consisting of fiber reinforced resin and a second prepreg, consisting of fiber reinforced resin, which is layered on the first laminate. The first laminate has a loss factor (=tan delta) set to not less than 0.005 nor more than 0.02, when the loss factor is measured at a temperature of 10° C. and a frequency of 10 Hz. The second prepreg has a loss factor (=tan delta) set to not less than 0.10 nor more than 0.50, when the loss factor is measured at a temperature of 10° C. and a frequency of 10 Hz.
申请公布号 US2005119075(A1) 申请公布日期 2005.06.02
申请号 US20040958497 申请日期 2004.10.06
申请人 SUMITOMO RUBBER INDUSTRIES, LTD. 发明人 ASHINO TAKESHI
分类号 A63B49/02;A63B49/10;A63B59/00;(IPC1-7):A63B49/10 主分类号 A63B49/02
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