Yokogawa Electric Corporation(横河電機株式会社,Yokogawa-denki-kabushikigaisha?) (TYO: 6841) is a Japanese electrical engineering and software company, with businesses based on its measurement, control, and information technologies. It has a global workforce of over 19,000 employees in 90 companies, operating in 55 countries. The company is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 index.
Yokogawa traces its roots back to 1915, when Dr. Tamisuke Yokogawa, a renowned architect, established an electric meter research institute in Shibuya, Tokyo. After pioneering the development and production of electric meters in Japan, this enterprise was incorporated in 1920 as Yokogawa Electric Works Ltd. In 1933 Yokogawa began the research and manufacture of aircraft instruments and flow, temperature, and pressure controllers. In the years following the war, Yokogawa went public, developed its first electronic recorders, signed a technical assistance agreement for industrial instruments with the U.S. firm Foxboro, and opened its first overseas sales office (New York). In the 1960s the company made a full-scale entry into the industrial analyzer market and launched the development, manufacturing, and sales of vortex flowmeters, and in the decade following established its first manufacturing plant outside Japan (Singapore), opened a sales office in Europe, and became one of the first companies to bring a distributed process control system to market. In 1983 Yokogawa merged with Hokushin Electric Works and, towards the end of the decade, entered the high-frequency measuring instrument business. In the 1990s, Yokogawa established an office in Bahrain to oversee its business in the Middle East and entered the confocal scanner and biotechnology businesses. In 2002 the firm continued its growth with the acquisition of Ando Electric, and in 2005 set the stage for a new level of globalization in its industrial automation business with the establishment of Yokogawa Electric International in Singapore.
Some of Yokogawa's main hardware products are controllers, recorders and data acquisition equipment.
Yokogawa products are used in different industries requiring process control systems. Depending on the size of the project and the requirements, Yokogawa offers various control systems: DCS, PLC, SCADA and ESD (Emergency ShutDown). In collaboration with Shell Global Solutions, Yokogawa also offers Advanced Process Control (APC) solutions for refineries, petrochemical plants, and chemical plants.
Centum, Yokogawa's flagship DCS, has the largest capacity among DCSs, supporting up to 1 million device tags.
Yokogawa manufactures field instruments, test and measurement instruments, and semi-conductor related products.
Yokogawa's consolidated net sales in fiscal 2007 accounted for over 437.4 billion yen (4.1 billion US dollars), and net income was 11.7 billion yen; net sales fell to 376.5 billion yen, and net loss was 38.4 billion yen in fiscal year 2008; net sales fell further to 316.6 billion yen, and net loss was 14.8 billion yen in fiscal 2009. In fiscal 2010, net sales increased slightly to 325.6 billion yen and net loss decreased to 6.7 billion yen.[dated info]