TDK chief fast-forwards from cassettes to AI smartphones

More than 50 years after the TDK brand became a household name with its best-selling cassette tapes, the Japanese group has transformed itself into the power behind the world’s smartphones and is now vying for a piece of the artificial intelligence market.

Audiophiles and collectors are still willing to splurge upwards of $200 on TDK’s discontinued cassettes, but the company itself has moved on and out of sight of consumers with its internal batteries.