ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,573, issued on July 8.
"Wind instrument having expanded sound range" was invented by Yoshifumi Yamashita (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A predetermined sound interval interlocking mechanism 7 for making opening and closing operations of sound hole covers 4 of an existing sound range interlock with opening and closing operations of sound hole covers 4 of an expanded sound range is provided and a sound hole switching mechanism capable of collectively closing the sound holes of the high-pitched range by one key operation is provided independent from the predetermined sound interval interlocking mechanism 7. By using the ...