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Siemens AG ((:ˈziːmɛns)) is a German multinational conglomerate company headquartered in Berlin and Munich. It is the largest engineering company in Europe. The principal divisions of the company are ''Industry'', ''Energy'', ''Healthcare'', and ''Infrastructure & Cities'', which represent the main activities of the company. The company is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the company's total sales, is its second-most profitable unit, after the industrial automation division. The company is a component of the Euro Stoxx 50 stock market index.〔(Frankfurt Stock Exchange )〕 Siemens and its subsidiaries employ approximately 362,000 people worldwide and reported global revenue of around €71.9 billion in 2014 according to their annual report. ==History== ===1847 to 1901=== Siemens & Halske was founded by Werner von Siemens and Johann Georg Halske on 12 October 1847. Based on the telegraph, his invention used a needle to point to the sequence of letters, instead of using Morse code. The company, then called ''Telegraphen-Bauanstalt von Siemens & Halske'', opened its first workshop on October 12.〔(【引用サイトリンク】 title=Founding of the "Siemens & Halske Telegraph Construction Company," which later became Siemens AG )〕 In 1848, the company built the first long-distance telegraph line in Europe; 500 km from Berlin to Frankfurt am Main. In 1850, the founder's younger brother, Carl Wilhelm Siemens later Sir William Siemens started to represent the company in London. The London agency became a branch office in 1858. In the 1850s, the company was involved in building long distance telegraph networks in Russia. In 1855, a company branch headed by another brother, Carl Heinrich von Siemens, opened in St Petersburg, Russia. In 1867, Siemens completed the monumental Indo-European (Calcutta to London) telegraph line.〔(【引用サイトリンク】 title=Siemens history )〕 In 1867, Werner von Siemens described a dynamo without permanent magnets (independently invented also by Charles Wheatstone), and Siemens became the first company to build such devices. In 1881, a Siemens AC Alternator driven by a watermill was used to power the world's first electric street lighting in the town of Godalming, United Kingdom. The company continued to grow and diversified into electric trains and light bulbs. In 1890, the founder retired and left running the company to his brother Carl and sons Arnold and Wilhelm. In 1887 it opened its first office in Japan.〔Siemens website (August 1, 2012 – 125 Years Siemens in Japan (1887–2012) ) Retrieved on August 12, 2013〕 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「Siemens」の詳細全文を読む スポンサード リンク
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