Sony and Ericsson brought a unique trait to the Sony cell phone as a product that won the market of mobile communications. The founders of Sony Corporation were Masaru Ibuka and Akio Morita, however, they are not the parents of the Sony cell phone. The headquarters of the company are at Minato, Tokyo, Japan.
Sony belongs to the wider range of consumer electronics and entertainment industry as they produce audio, video, televisions, communications and information, semiconductors, electronic components, motion picture, music, online business and play-station devices. In 2008 the company's operating income was US$ 4 billion and their revenue was US$ 100 billion. Plus, the number of employees working in Sony facilities worldwide was around 180,000.
From a historical point of view, Sony maintains a high quality standard in the storage and recording items they provide, as they created their individual brands and products without stealing from the competition. The standard products designed and manufactured over the years include Umatic (~1968), Betamax (1975), Betacam (81), Compact Disc (82), 3.5 inch Floppy Disk (82), Video8 (85), DAT (87), Hi8 (88), Minidisc (~90), Digital Betacam (~90), miniDV (92), Memory Stick (98), Digital8 (99), PSP Universal Media Disc (~2003), HDV (~2004), Blu-ray Disc (2006). So, Sony is mainly known for these consumer electronics rather than for cell phones which they started developing in cooperation with Ericsson only. Therefore, although you may refer to them as Sony cell phone products, you would actually discuss Sony Ericsson phones.
After their association, Sony and Ericsson became famous in the field of cell phone design due to their Walkman and Cyber-shot phones, getting to the fifth place among the top companies of the world, after LG, Nokia, Samsung and Motorola. The most famous Walkman mobiles were by far K750i and W800i, each with a great music playback range and two low-end phones included; both mobiles were launched in March 2005. A few months later, in October, another Sony cell phone - the P990 - was released, being the first mobile phone based on UIQ 3.
Another successful Sony cell phone belongs from the Cyber-shot brand. This one - the K750, was also launched in 2005 and became one of the most popular Sony Ericsson phones. Unlike the Walkman had the disadvantage of a poor camera, the Cyber-shot phone had a decent media viewing and good cameras.