Pioneer Electronic Corporation

Pioneer Corporation

Tohoku Pioneer Corporation

Pioneer Design Corporation

Chuichi Endo

Koji Nakane

Fumio Murayama

Yasuhisa Abe

Tomiaki Ando

Yumi Takigami

In a low-frequency sound reproducing speaker apparatus of Kelton type, a cabinet for containing a speaker unit is constituted by a shape of substantially a parallelepiped slender in a front and rear direction, a length dimension in the front and rear direction is set to a value substantially near to a depth dimension of a seat cushion of a vehicle, the speaker unit is attached to a partition plate for partitioning inside of the cabinet into front and rear air chambers, and a lower face of the cabinet is fixed to the seat cushion by a fixing belt laid along the front and rear direction.

Low-frequency sound reproducing speaker apparatus

A mobile speaker system including a speaker unit mounted in a speaker box, a plurality of light sources provided inside the speaker box for irradiating the illumination panel, and a switching circuit for controlling the light sources. The light sources emit light of a plurality of colors and are controlled by the switching circuit so as to be selectively turned on to irradiate the illumination panel.

Mobile speaker system having an illumination effect

Growing community of inventors

Yamagata, Japan

Chuichi Endo