Foster Electric Company, Limited

Shiseido Company, Limited

Nihon Koken Kogyo Co.

Fumiteru Shingu

Asa Kimura

Akira Kose

Kiyotaka Miyashita

Kouichi Ogawa

A damper for loudspeaker is constituted by mounting tubular knitted tinsel cords through an adhesive agent of acrylic emulsions having a tackiness onto one surface of a corrugated damper body. The damper is thereby rendered easily manufacturable and highly flexible enough for restraining any breaking of the tinsel cords and improving the reliability.

Damper for loudspeaker and method for manufacturing same

A loudspeaker diaphragm is provided as an injection molded material including 50 to 80 weight % of a matrix resin of polyolefins and 20 to 50 weight % of flaky mica having an average aspect ratio of more than 10 and including at least 3 weight % or more of pearl mica. The matrix resin of polyolefins includes respective flakes of the flaky mica orientated in parallel to thereby improve the acoustic characteristics and concurrently the design appearance of the diaphragm. The design appearance of the diaphragm can have bright colors and a pearly luster.

Loudspeaker diaphragm

Growing community of inventors

Akishima, Japan

Fumiteru Shingu