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Dyson Ltd is a British technology company that designs and manufactures vacuum cleaners, hand dryers, bladeless fans, and heaters. It sells machines in over 70 countries and employs more than 5,000 people worldwide. ==History== James Dyson encountered a number of problems with the conventional wheelbarrow he was using while renovating his property. He found that the wheel sank into the mud, was unstable and was prone to punctures; the steel body caused damage to paint work and became covered with dried cement. These problems got Dyson thinking about improvements, and by 1974 Dyson had a fibreglass prototype of a barrow with a ball instead of a wheel. The Ballbarrow was born.〔James Dyson - Against the Odds〕 Later that year Dyson bought a Hoover Junior vacuum cleaner. The Hoover became clogged quickly and lost suction over time. Frustrated, Dyson emptied the bag to try to restore the suction but this had no effect. On opening the bag to investigate, he noticed a layer of dust inside, clogging the fine material mesh and preventing the machine working properly. The machine only worked well with a fresh bag, it lost suction over time. He resolved to develop a better vacuum cleaner that worked more efficiently. During a visit to a local sawmill, Dyson noticed how the sawdust was removed from the air by large industrial cyclones.〔(【引用サイトリンク】url=http://content.dyson.com/insideDyson/article.asp?aID=newidea&hf=&js= )〕 Centrifugal separators are a typical method of collecting dirt, dust and debris in industrial settings. Such methods usually were not applied on a smaller scale because of the higher cost. Dyson reportedly hypothesised the same principle might work, on a smaller scale, in a vacuum cleaner. He removed the bag from the Hoover Junior and fitted it with a cardboard cyclone. On cleaning the room with it, he found it picked up more than his bag machine. This was the first vacuum cleaner without a bag.〔 According to ''@Issue: The Journal of Business and Design'' (vol. 8, no. 1), the source of inspiration was in the following form:
Dyson developed 5,127 prototype designs between 1979 and 1984, the first prototype vacuum cleaner, a red and blue machine brought Dyson little success, as he struggled to find a licensee for his machine in the UK and America. Manufacturing companies like Hoover did not want to licence the design, probably because the vacuum bag market was worth $500m so the Dyson was a threat to their profits.〔 In 1983, a Japanese company, Apex, licensed Dyson's design and built the G-Force, which appeared on the front cover of ''Design Magazine'' the same year. In 1986, a production version of the G-Force was first sold in Japan for the equivalent of US$2,000. The G-Force had an attachment that could turn it into a table to save space in small Japanese apartments.〔 In 1991, it won the International Design Fair prize in Japan, and became a status symbol there. Using the income from the Japanese licence, James Dyson set up the Dyson company, opening a research centre and factory in Wiltshire, England, in June 1993. His first production version of a dual cyclone vacuum cleaner featuring constant suction was the DA001 (replaced by the DC01 the following year), sold for £200. Even though market research showed that people wouldn’t be happy with a transparent container for the dust, Dyson and his team decided to make a transparent container anyway and this turned out to be a popular and enduring feature which has been heavily copied.〔(【引用サイトリンク】url= http://www.jenkins-ip.com/mym/spring2004/item_11.htm )〕 The DC01 became the biggest selling vacuum cleaner in the UK in just 18 months.〔 After the introduction of the cylinder machine, DC02, DC02 Absolute, DC02 De Stijl, DC05, DC04, DC06 and DC04 Zorbster, the root Cyclone was introduced in April 2001 as the Dyson DC07, which uses seven smaller funnels on top of the vacuum. By 2009, Dyson began creating other air-powered technologies, the AirBlade hand drier, the Air Multiplier bladeless fan and Dyson Hot, the bladeless fan heater.〔(【引用サイトリンク】title=Dyson Vacuum Cleaners, Fans, Heaters & Tools - Official Site )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dyson (company)」の詳細全文を読む スポンサード リンク
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