Toyota Jidosha Kabushiki Kaisha

Denso Ten Limited

Masahito Isayama

Koji Sagata

Kazuhiko Hamada

Masashi Nakamura

Shunsuke Kobayashi

Isamu Umegaki

Takashi Moriki

To provide an enclosure structure having relatively high rigidity to a speaker system mounted on a vehicle, and to improve frequency characteristics of sound pressure. The speaker system includes: a hollow framework member extending in a front-back direction of a vehicle; and a speaker unit installed such that an internal space of the framework member is usable as a back cavity. The framework member has a partition member at at least one end of the internal space, and spatial path lengths from the speaker unit to both longitudinal ends of the internal space are substantially the same.

Speaker system and enclosure structure of speaker system

Growing community of inventors

Kobe, Japan

Masahito Isayama