Article: Publication No. WO/2009/130778 Published on Oct. 29, Assigned to Pioneer, Tohoku Pioneer for Speaker System (Japanese Inventors)

GENEVA, Oct. 31 -- Tempei Katsuta and Hiroshi Kaiwa, both of Japan, have developed a speaker system.

The patent has been assigned to Pioneer Corp., Tokyo, and Tohoku Pioneer Corp., Yamagata, Japan.

According to an abstract posted by the World Intellectual Property Organization: "A high-quality sound speaker system which restrains standing sound waves arising at a cabinet to reduce unwanted vibration. On a first cabinet of a speaker system, at least one of a pair of planar surfaces in opposition to the acoustic radiation side of a speaker unit is formed in the inclined shape, more particularly a cross-sectional surface is formed in the ...

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