- 专利标题： Intra-aural audio device having multiple layers
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申请号： US16213237申请日： 2018-12-07
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公开(公告)号： US10785552B2公开(公告)日： 2020-09-22
- 发明人: Mark Estabrook , Richard Urella
- 申请人： David Clark Company Incorporated
- 申请人地址： US MA Worcester
- 专利权人： David Clark Company Incorporated
- 当前专利权人： David Clark Company Incorporated
- 当前专利权人地址： US MA Worcester
- 代理机构： Burns & Levinson LLP
- 代理商 Steven M. Mills
- 主分类号： H04R25/00
- IPC分类号： H04R25/00 ; H04R1/10
摘要：
An intra-aural audio device includes an outer layer shaped to define separate ear canal, concha bowl, and concha cymba portions. An inner layer is disposed within the outer layer, the inner layer having a durometer different than that of the outer layer.
公开/授权文献
- US20190182577A1 INTRA-AURAL AUDIO DEVICE HAVING MULTIPLE LAYERS 公开/授权日：2019-06-13
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