Traded as TYO: 6951
Founded 1948
Founders Kenji Kazato, Kazuo Ito
Headquarters Akishima, Tokyo, Japan
Key people

Terukazu Eto, Chairman of the Board, Chief Executive Officer, Representative Director Yoshiyasu Harada, President, Chief Operating Officer, Representative Director

Toshihito Suzuki, Chief Director of Finance
Products Scientific instruments

JEOL, Ltd. (日本電子 Nihon Denshi, Nihon meaning Japan and Denshi meaning electron) is a major developer and manufacturer of electron microscopes and other scientific instruments, industrial equipment and medical equipment.[1] Its headquarters are in Tokyo, Japan, with 25 domestic and foreign subsidiaries and associated companies as of 2014.[1] It is listed in the top ten businesses world-wide for analytical laboratory instrument manufacturing.[2] JEOL's instruments are used by researchers around the world, including the University of Cambridge,[3] University of Oxford,[4] and MIT.[5]

For the year ending March 31, 2016, JEOL reported net sales of 107,373 million Japanese yen.[6][7] JEOL is traded on the Tokyo Stock Exchange.[7] It has been included in the Activest Lux Nanotech Mutual Fund[8] and the WestLB Nanotech Fund.[9]


Scientists in Japan began to collaborate as early as 1939 on the development of an electron microscope. Kenji Kazato and Kazuo Ito met while working at the Naval Central Institute in Tokyo during World War II. After the war, Kazato attracted Ito and a group of others to Mobara, Chiba Prefecture, Japan.[10][11] This initial group developed a prototype magnetic field–type electron microscope called the DA-1, which was sold to Mitsubishi in 1947.[12][13] Because of differences over the direction of this early company, Kazato and Ito chose to found a new organization.[10]

The Japan Electron Optics Laboratory Company, Limited (Nihon Denshi Kogaku Kenkyujo)[13] was founded in 1949 by Kenji Kazato and Kazuo Ito in Mitaka, Tokyo.[12][14] It produced its first commercial model transmission electron microscope, the JEM-1,[12] a year later. Overseas sales began in 1956 with the sale of a system to France. The company's strengths were the customization of orders to fit customer requests, and the provision of strong customer support.[10]

In 1961, the company was renamed JEOL, Limited. Its first overseas subsidiary, JEOL Company (USA) Inc., was established in 1962 and headquartered in Peabody, MA. JEOL was listed on the Second Section of the Tokyo Stock Exchange by 1962, and on the First Section of the Tokyo Stock Exchange by 1966.[12]

The company expanded from electron microscopy to nuclear magnetic resonance (NMR), releasing the first NMR system in Japan, the JNM-1, in 1956. They produced their first mass spectrometer in 1963, and their first scanning electron microscope in 1966. In 1968 they produced the first amino acid analyzer in the world, the JLC-5AH.[12] The company also continued to develop its line of electron microscopes. The JEM-7, in 1964, was the first electronic microscope to include a mechanism for the electrical adjustment of the lens axis. The JEM-100B incorporated an electromagnetic deflection unit as well as an electromagnetic stigmator. The first photomicrograph of atomic arrangement in the world was taken by a JEOL electron microscope, in 1976.[12]

Kazuo Ito has expressed the company's philosophy as follows:

"On the basis of creativity, and research and development, JEOL (日本電子) positively challenges the world’s highest technology thus forever contributing to the progress in both science and human society through its products."[10]

In commemoration of JEOL's 20th anniversary, the Kazato Research Foundation was created to support electron microscopy research.[15] Kenji Kazato retired as president of JEOL in 1975, but continued to act as an adviser to the company until his death in 2012. Kazuo Ito was JEOL's president from 1982 to 1987. The Pittcon Heritage Award was posthumously awarded to them in 2016 for their contributions to scientific instrumentation.[12][16]


JEOL Ltd. has four business segments. Electron Optics manufactures scanning electron microscopes, transmission electron microscopes and scanning probe microscopes, along with related equipment. The Analytical Instruments section's products include mass spectrometers, nuclear magnetic resonance and electron spin resonance equipment. The Industrial Equipment segment covers a range of equipment particularly targeted at the semiconductor industry, such as electron beam sources, wafer process monitors, and plasma gun series. Finally, the Medical Equipment segment manufactures automatic analysis devices, clinical diagnostic systems and amino acid analyzers.


In popular culture

The company's direct analysis in real time (DART) mass spectrometry system has appeared on the television program CSI: NY.[20][21]

See also


  1. 1 2 "Annual Report 2014" (PDF). JEOL Ltd. Retrieved 24 June 2016.
  2. "JEOL LTD". Plunkett Research, Ltd. Retrieved 24 June 2016.
  3. "Facilities @ Wolfson Electron Microscopy Suite". University of Cambridge. Retrieved 24 June 2016.
  4. "Instruments". Oxford University. David Cockayne Centre for Electron Microscopy David Cockayne Centre for Electron Microscopy. Retrieved 24 June 2016.
  5. "Electron Microscopy". MIT. MIT Center for Materials Science and Engineering. Retrieved 24 June 2016.
  6. "Summary of Consolidated Financial Results for the Year Ended March 31, 2016 (Based on Japanese GAAP)" (PDF). JEOL Ltd. May 13, 2016.
  7. 1 2 "jeol ltd (6951:Tokyo Stock Exchange)". Bloomberg. Retrieved 24 June 2016.
  8. Uldrich, Jack (2006). Investing in nanotechnology : profiles over 100 leading nanotechnology companies. Avon, MA: Adams Media. p. 45. ISBN 9781593374082. Retrieved 24 June 2016.
  9. Thayer, Ann M. (May 2, 2005). "Nanotech Investing". Chemical & Engineering News. 83 (18): 17–24. Retrieved 24 June 2016.
  10. 1 2 3 4 Aspray, William (May 16, 1994). "KENJI KAZATO & KAZUO ITO: An Interview Conducted by William Aspray (Interview #199)". Engineering and Technology History Wiki. Center for the History of Electrical Engineering, The Institute of Electrical and Electronics Engineers, Inc.
  11. Yoshimura, Nagamitsu (2013). Historical evolution toward achieving ultrahigh vacuum in JEOL electron microscopes. Tokyo: Springer Japan. ISBN 4431544488. Retrieved 29 June 2016.
  12. 1 2 3 4 5 6 7 "Pittcon Heritage Award". Chemical Heritage Award. Retrieved 29 June 2016.
  13. 1 2 Ito, Kazuo (1996). "Development of the Electron Microscope at JEOL". In Mulvey, Tom. The growth of electron microscopy. San Diego: Academic Press. pp. 659–664. ISBN 9780120147380. Retrieved 29 June 2016.
  14. Palucka, Tim. "Overview of Electron Microscopy". Dibner Institute for the History of Science and Technology. Retrieved 29 June 2016.
  15. "Objectives / Brief History". Kazato Research Foundation. Retrieved 29 June 2016.
  16. "Award Presentations at PITTCON 2016" (PDF). PITTCON 2016. Retrieved 29 June 2016.
  17. Sparkman, O. David (June 2002). "Mass Spectrometry PittCon®2002". Journal of the American Society for Mass Spectrometry. 13 (6): 749–758. doi:10.1016/S1044-0305(02)00394-X. Retrieved 29 June 2016.
  18. Borman, Stu (March 28, 2005). "PITTCON 2005 TAKES ORLANDO BY STORM". Chemical & Engineering News. 83 (13): 39–45. Retrieved 29 June 2016.
  19. Cody, Robert B.; Laramée, James A.; Durst, H. Dupont (April 2005). "Versatile New Ion Source for the Analysis of Materials in Open Air under Ambient Conditions". Analytical Chemistry. 77 (8): 2297–2302. doi:10.1021/ac050162j.
  20. Dorneanu, Lucian (July 19, 2007). "The Newest Tool for Fighting Counterfeit Money - as Seen on "CSI: New York"". I &heart Softpedia. Retrieved 29 June 2016.
  21. ""CSI: New York" Turns TV Spotlight on Technology in use at ECBC" (PDF). Edgewood Chemical Biological Center. 20 October 2005. Retrieved 29 June 2016.

External links

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