Corps and Galvin Manufacturing subsequently played a significant role with such radio
and communications equipment as the walkie-talkie and handie-talkie in World War II
(citation needed).
Motorola made its first public stock offering in 1947, which is when it officially changed
its name to Motorola Inc. In 1948 Motorola entered the television business and sold more
than 100,000 TV sets in one year, making it the fourth largest manufacturer of them.
During the late 1940s it began to supply car radios to Ford and Chrysler plants for
installation in their automobiles (citation needed).
Motorola took advantage of expanded allocations of radio frequencies to introduce
dispatcher radios with aggressive marketing, and its reputation for reliable equipment
earned it a leading role in the industry. Noble then launched a Motorola research and
development facility in Phoenix, Arizona. Anticipating the enormous potential of the
newly invented transistor, he helped Motorola become one of the worlds largest
manufacturers of semiconductors (citation needed).
By 1950 Motorolas net sales were $177,104,669 and it had 9,325 employees. Its first color
television in 1952 was unsuccessful due to technical problems, a high price, and the failure
of broadcasters to offer an adequate amount of color programming. It pulled the product
from the market in 1956 (citation needed).
Some of the innovations for which Motorola is famous are pagers, which delivered radio
messages selectively to particular individuals carrying them, and the Motrac, which
enabled car radios to operate without running the engine. It was also the first company to
use the epitaxial method to mass produce semiconductors and developed the first
rectangular picture tube for color TVs in a joint venture with National Video (citation
needed).
It pioneered in using low-cost techniques for making the silicon rectifiers in automobile
alternators. Its Automotive Products Division began producing alternators in place of car
generators, inaugurating the companys role as a supplier of under-the-hood electronics. It
also designed and made eight-track tape players for the auto industry in collaboration with
Ford and RCA. Domestic and foreign car manufacturers soon became customers for then
and eight-track players became the Automotive Product Divisions second major product
line (citation needed).
As the cost of semiconductors continued to decline their applications in consumer