发明名称 HEADPHONE DEVICE
摘要 A headphone device including a driver unit, and an ear-hook hanger of a loop shape that is integrated with the driver unit and supports an entire circumference of an ear capsule is provided.
申请公布号 US2009052719(A1) 申请公布日期 2009.02.26
申请号 US20080193158 申请日期 2008.08.18
申请人 FUJIWARA KEITARO;MUROZAKI KATSUNORI 发明人 FUJIWARA KEITARO;MUROZAKI KATSUNORI
分类号 H04R25/00;H04R5/00 主分类号 H04R25/00
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