Audio-Technica U.S., Inc.

Audio-Technica U.S., Inc. is the United States subsidiary of Audio-Technica Corporation, a private Japanese company that designs and manufactures audio equipment. The parent company was founded by Hideo Matsushita in Tokyo in 1962, initially as a producer of phonograph cartridges. The U.S. arm was established in 1972 and is headquartered in Stow, Ohio. While financials for the private company are not public, sources estimate the U.S. subsidiary has between 200 and 500 employees.

As an operating company, Audio-Technica serves both the professional and consumer markets. Its main product lines include a wide array of high-fidelity audio equipment such as professional microphones, headphones, wireless systems, turntables, and phonograph cartridges. The company's microphones and headphones are widely used in live sound tours, broadcast and recording studios, government institutions, and major televised events, including the GRAMMY Awards and U.S. presidential debates.

Audio-Technica U.S., Inc.'s patent litigation history consists of defending its products. The company has been a defendant in two tracked patent cases and has not been a plaintiff. This posture is typical of an operating company being targeted by patent assertions. Both lawsuits were filed in the U.S. District Court for the Northern District of Ohio, the company's home district.

The two tracked cases were filed on July 23, 2025, by the same plaintiff, Earin AB. Earin AB, a Swedish company, has also filed similar patent infringement lawsuits against other audio equipment manufacturers over technology related to wireless earbuds. The suits against Audio-Technica U.S., Inc. are part of this broader assertion campaign concerning wireless audio technology patents.