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日本三豐Mitutoyo  
日本三豐公司由沼田惠范創立于1934年，最初是一家制造千分尺的公司，1949年獲得制造卡尺的許可證，隨后公司不斷發展，向市場提供各種測量工具以及坐標測量機、形狀測量儀、圖象及光學測量儀等，如今三豐公司已成為世界著名的精密測量儀器制造和銷售公司。
三豐公司總部位于日本神奈川縣，公司資本3.91億日元。目前三豐在世界各地共有43個公司（日本9個、美洲11個、歐洲14個、亞洲9個），共有從業人員4000余人（日本2177人，海外1883人，2004年6月統計）。年銷售額831.41億日元?，F任董事長：沼田智秀，社長：手冢和作。
三豐公司的企業方針為“良好的環境，優秀的人才，精湛的技術”。精密測量技術是工業的基礎技術，而精密測量技術需要精密測量設備的支撐。三豐公司瞄準世界市場的前沿，將5種基礎技術（機械技術、電子技術、光學技術、計算機技術、控制（伺服系統）技術）融為一體，生產性能最好的精密測量設備。
三豐公司在日本有12個生產廠和3個實驗室，在美國、荷蘭、墨西哥、巴西、中國均建有生產廠。在日本以及8個國家及地區（美國、墨西哥、巴西、新加坡、意大利、英國、德國和中國臺灣）建有三豐計量研究所，確保應用具有世界領先水平的前沿技術開發和生產高質量的精密測量產品

Founded by Yehan Numata on October 22, 1934, Mitutoyo Corporation manufactures and distributes precision measuring instruments. This company has it's base located in Kawasaki, Japan. In 1934, a research laboratory was set up by Numata in Tokyo for manufacturing mechanical micrometers. Soon, the company expanded it's product range to include instruments like indicators, callipers and other precision measurement devices.

Digital and electronic measurement devices were added to the range of products in the 1970s. By this time, a wide array of equipment included bigger, sophisticated and more sensitive measuring devices like form measuring equipment, coordinate measuring instruments and optical comparators. When the science of metrology became popular, Mitutoyo introduced such products as data collectors, output gauges and analysis software in the market. This company benefited with the arrival of computer technology and incorporated it so that measuring accuracies were brought to the sub-micron range.

Nowadays, Mitutoyo offers over 6000 computer-based metrology systems, which are integrated and capable of interconnection to develop efficient networks. This company still focuses on creating advanced measurement devices and systems with the aid of innovative technologies. Old Mitutoyo Vernier models are much sought after due to their vintage value. There is also a strong demand for Mitutoyo digital micrometer models.