Originally the company was called Tokyo Tsushin Kogyo and Sony was their brand name.
Ever wonder where the name Sony came from? There are a few versions of this explanation depending on where you read it.
Here's mine....It is a combination of the latin word for sound - "sonus" and the expression - "sonny boy" which (at that time) refered to a youthful and energetic young man.
The name Sony was certainly easier to pronounce and recognize for English speaking consumers AND also had a universal appeal, as it had no connection to any language in particular.
Sony means the same thing in Canada as it does in Norway, India, Germany and get the point.
Consumers certainly did get the point. Sony grew to be one of the strongest forces in consumer electronics.

Sony was founded by Akio Morita and Masaru Ibuka. In May of 1946 the two established a partnership with few resources but a great deal of enthusiasm. The company was registered as Tokyo Tsushin Kogyo Kabushiki Kaishi (translating to the Tokyo Telecommunications Engineering Corporation).

In 1952 Masaru Ibuka read of a new device called a transistor developed by Bell Laboratories. Transistors performed the same duties as the less-durable and much larger vacuum tubes. Western Electric (the manufacturing division of Bell) owned the patent for the new technology and began to sell licenses for it’s development to outside companies. TTK acquired a patent license from Western Electric with the intention of developing a solid state radio. TTK’s technicians had to learn to develop their own transistors requiring months of trial and error. They eventually managed to improve on the existing technology by perfecting the phosphorus doping method which had been abandoned by Bell Labs.

They produced their first transistor radio, the TR-52, in June of 1955. Unfortunately it suffered cabinet problems. The front plastic speaker grill warped or became unglued from the rest of the cabinet due to hot, humid weather. With about 100 units off the assembly line the radio’s production was stopped and was never released. I wonder where those 100 examples are today?
In August a re-designed and improved radio, the TR-55 was released. It has the honor of being Japan’s very first transistor radio.

Not long after the release of the TR-55 while on a business trip to Japan, a Canadian gentleman by the name of Albert Cohen, owner of General Distributing (GENDIS), met with TTK and had the foresight to buy fifty of these radios to promote to department stores in Canada. Unknowingly, the beginning of the end for the North American electronics industry began right here in Canada!

In 1956 a wood cabinet portable radio, the TR-72, was released followed by several coat pocket sized radios such as the TR-5 (a redesign of the TR-55) TR-6, TR-66, TR-67, TR-77 and the shirtpocket sized TR-63. The TR-63 would prove to be the turning point for Totsuko and the Sony brand. It was smaller than anything the American companies were manufacturing and required only a 9-volt battery. The radio was dubbed "the world’s first shirt pocket radio" even though it was slightly larger than the average pocket. Salesmen for TTK actually wore specially designed shirts, which had larger pockets to accommodate the radio.
By 1957 Sony brand radios were familiar to the Canadian consumer however none had made an appearance south of the border. In 1957 the TR-63 was the first Sony radio to be imported into the United States. It was such a success that the Tokyo Tsushin Kogyo company decided to change it’s corporate name to Sony in January of 1958.
After releasing several more coat pocket sets like the TR-608. TR-77 and the TR-75, Sony unveiled the stylish and even smaller TR-610 in 1958. Sales amost reached half a million units. Many consider the TR-610 to be the quintessential pocket radio. It is perhaps the most copied transistor radio of all time.

During the late 50’s and 60’s Sony achieved many technological milestones. They released their first transistorized AM/FM radio, the TFM-151, in 1958 (It may have been the world's first transistorized FM radio). The world's first AM/SW shirtpocket radio (the TR-714) was released in 1959.

Then in 1979 Sony changed the electronics world once again with a little device they invented called the "Walkman".

Many of these historic radios can be seen right here.
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