Microwave oven
The development of the cavity magnetron in the UK made possible the production of electromagnetic waves of a small enough wavelength (microwaves). American engineer Percy Spencer is generally credited with inventing the modern microwave oven after World War II from radar technology developed during the war. Named the "Radarange", it was first sold in 1946. Raytheon later licensed its patents for a home-use microwave oven that was first introduced by Tappan in 1955, but these units were still too large and expensive for general home use. Sharp Corporation introduced the first microwave oven with a turntable between 1964 and 1966. The countertop microwave oven was first introduced in 1967 by the Amana Corporation. After Sharp introduced low-cost microwave ovens affordable for residential use in the late 1970s, their use spread into commercial and residential kitchens around the world. In addition to their use in cooking food, types of microwave ovens are used for heating in many industrial processes.
Neff GmbH
In 1957, it introduced the first microwave oven. In 1957, it introduced the first induction cooker (hob) in Europe, marketing it under the revolutionary slogan of "Kochen auf der kalten Platte" (cook on a cold surface). In 1961 it introduced the first integrated cooker units in Europe, built into other kitchen units - the built-in oven. Also in the same year they began selling larger microwave cookers for commercial (catering) uses. By 1970 it was branching out into providing for the full range of units to make up a fitted kitchen. By the early 1970s the cookers were among the first to be controlled with a digital clock.