US Patent Issued to Audio-Technica on July 21 for "Headphone" (Japanese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. D1,135,866, issued on July 21, was assigned to Audio-Technica Corp. (Tokyo).

"Headphone" was invented by Shan Yung Yen (Tokyo), Nonomi Fukushima (Shiwaku) (Tokyo) and Yutaro Kumagai (Kanagawa, Japan).

The patent was filed on July 7, 2025, under Application No. D/011,765.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=D1135866&OS=D1135866&RS=D1135866

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