公开(公告)号：US10708693B2

公开(公告)日：2020-07-07

申请号：US16302286

申请日：2017-06-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomonori Shibuya ,  Yoshiyuki Takahashi ,  Nobuo Nakamura ,  Takayuki Dan ,  Tetsushi Itano

IPC: H04R7/12 ,  H04R7/18 ,  H04R9/02 ,  H04R9/06 ,  H04R31/00 ,  H04R7/10 ,  H04R9/04 ,  H04R1/02

Abstract: A vibration component for loudspeakers includes a base layer, an intermediate layer, and a coating layer. The base layer has a front face and a rear face, has a first density, and is formed of a paper body containing a plurality of fibers. The intermediate layer has a first face joined to the front face of the base layer, and a second face on a reverse side of the intermediate layer from the first face, has a second density higher than the first density, and includes a plurality of cellulose fibers as a main component. The coating layer is provided on the second face of the intermediate layer, and includes an inorganic powder formed of a plurality of inorganic fine particles.