发明名称 Earpad and headphones
摘要 There is provided an earpad that is attachable to a housing capable of containing an audio signal processing unit and includes a ring-shaped cushioning member and a covering member covering the ring-shaped cushioning member. In the earpad, the ring-shaped cushioning member includes an outer ring member, a middle ring member and an inner ring member, and the hardness of the middle ring member is different from the hardness of the outer ring member and the inner ring member.
申请公布号 US8213662(B2) 申请公布日期 2012.07.03
申请号 US20080234791 申请日期 2008.09.22
申请人 ISHIDA HIROYUKI;SONY CORPORATION 发明人 ISHIDA HIROYUKI
分类号 H04R25/00 主分类号 H04R25/00
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