Pioneer Corporation

Tohoku Pioneer Corporation

Yoshitaka Junicho

Satoshi Chiba

Kazuyuki Tamaya

Natsumi Ota

Yohji Ogata

A frame is coupled to a magnetic circuit. The frame includes a plurality of holes which are formed outside the coupling portion and opened toward the magnetic circuit. A case covers the magnetic circuit and the frame, and is opened on a sound radiation direction side. An outer circumferential portion of the case is located on the sound radiation direction side beyond the plurality of holes and forms a first gap with respect to the frame. The first gap is communicated with an opening of the case.

Growing community of inventors

Yamagata, Japan

Yoshitaka Junicho