ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,455, issued on Dec. 30, was assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (Torrance, Calif.).
"Audio device" was invented by Akihisa Kawamura (Osaka, Japan), Shuji Saiki (Nara, Japan) and Satoshi Takayama (Mie, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An audio device includes a plurality of reflective components that reflect sound emitted from a loudspeaker unit. The audio device forms a reflective space surrounded by the plurality of reflective components. The audio device includes an acoustic channel that is tube-shaped and includes an opening on one end and a terminating portion on an other end, the one end being ...