R.I.P. Lou Ottens, Creator of the Cassette Tape Dead at 94
https://consequenceofsound.net/2021/03/ ... ette-dead/
The tapes were quickly copied by the Japanese but in different formats. Ottens managed to make a deal with Sony to use the mechanism patented by Philips to introduce a standard cassette which was then rolled out globally. Over 100 billion were sold worldwide. Ottens went on to develop the CD, which again became a Sony-Philips standard and which sold over 200 billion.
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