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What's So Special About Sony Cassette Tapes?

Sony’s pioneering business activities spread cassette tapes around the world!

In 1946, Masaru Ibuka (井深大), Akio Morita (盛田昭夫) and Shozaburo Tachikawa (太刀川正三郎) founded the electrical manufacturing company Tokyo Tsushin Kogyo in Nihonbashi, Chuo Ward, Tokyo. This was the future Sony. In 1950, it introduced Japan’s first tape recorder. Having become a major manufacturer, Sony took an interest in the compact cassette technology held by the Dutch company Philips and asked to use it. Remarkably, it made royalty-free use of the patent a condition and persuaded Philips to agree. This prompted TDK, Maxell and other companies to enter the market. Cassette tapes went on to spread around the world.

1. The Philips patent

Sony C-60 cassette on the spread about the Philips patent

Sony prompted the move to royalty-free use of Philips’ cassette tape patent.

2. TYPE III

Sony C46 Duad TYPE III cassette

Sony released the world’s first TYPE III (ferrichrome) cassette tape.

3. The Walkman

Two Sony Walkman cassette players

The arrival of the Walkman had an enormous impact on the spread of cassette tapes.

4. An ultra high-end cassette

Super Metal Master and its case on the Sony spread

Sony released an ultra high-end cassette tape in a case made of aluminum and resin.

Translated from the original Russian text using Claude Code. Source: Russian version.