One of the innovations for the Tokyo Olympics was the development of the electronic printer which was used to print the times of results.
The printer was developed by the Seiko Group and the printer was called the “Electronic Printer” or “EP.” The printer module was successful and became incorporated into early calculators.
Years later, Seiko launched a range of dot matrix printers into the US market and the US distributor was named EPSON, or “son” of “EP.” The brand became so established that Seiko renamed itself the Epson Corporation a few years later.