The Priest's Son Who Built A Japanese Precision Empire To Fund World Peace

On August 25, 2006, Tokyo police walked five executives out of a corporate headquarters in Kawasaki in handcuffs, in front of television cameras. The company was Mitutoyo, the largest precision measuring instrument manufacturer in the world, and the reason was that its coordinate measuring machines had been found inside Libya's gas centrifuge program. This is how that happened, told from the beginning. Mitutoyo was founded in 1934 by Yehan Numata, third son of a Jodo Shinshu priest from a family that had held the same Hiroshima temple for sixteen generations. Sent to California in 1916 as an assistant missionary, Numata worked as a houseboy and chauffeur to pay for school, contracted tuberculosis, and came close to dying alone in Los Angeles. What saved him was a letter from his parents carrying a teaching attributed to Shinran. He recovered, enrolled at UC Berkeley, took a master's in statistics, and founded a free English-language Buddhist magazine called The Pacific World in 1925. It collapsed within two years for lack of money, despite backing from the financier Shibusawa Eiichi. That failure produced the vow that produced the company. Numata decided to become independently wealthy so that Buddhist propagation would never again depend on anyone else's generosity. He chose the micrometer, an instrument Japan imported almost entirely, and spent three years failing to make one. In 1936 Mitutoyo produced its first lot of one hundred. Seventeen passed inspection. By the company's own account, the remaining eighty-three were buried in the factory grounds. The video traces the rest chronologically. Wartime military contracts. The domestic gauge block race against Taisuke Tsugami. The destruction of the Kamata works in the 1945 Tokyo firebombings, and the dispersal to Mizonokuchi and Utsunomiya, where the company trained teenagers in hand lapping and sent staff to learn interferometry in the middle of a losing war. It covers what lapping involves, why two gauge blocks wring together, and why the length standard is defined at twenty degrees Celsius. It then follows the internationalization. Numata's appearance at the 1954 International Metrology Conference in the United States, using English he learned during the worst decade of his life. New York in 1963, Düsseldorf in 1968, Singapore in 1978. The founding of Bukkyo Dendo Kyokai in December 1965 and its Gideon Bible strategy for placing The Teaching of Buddha in hotel rooms worldwide. The 1978 Digimatic launch, the ABSOLUTE encoder that made Mitutoyo calipers the machinist's standard, and the counterfeit epidemic that followed. And it covers the collapse. Japan tightened dual-use export controls in 1992 and denied Mitutoyo a license for Iran in 1993. Management responded by building software, code-named COCOM, that made its own machines report degraded accuracy so they would clear customs as uncontrolled goods. Roughly ten thousand devices left Japan without proper licenses. Between December 2001 and December 2002, machines moved through Malaysia's Scomi Precision Engineering and Dubai into A.Q. Khan's network, and IAEA inspectors found the equipment in Libya in December 2003. Four executives were convicted in June 2007, and METI imposed the maximum export ban available. The video closes on the detail that reframes everything: Mitutoyo is unlisted, and its largest shareholder remains the Buddhist foundation its founder created to promote world peace. Subscribe to Trade Archive for more documentaries on the companies that built the physical world. --- SOURCES Albright, David. Reporting on the A. Q. Khan network and Scomi Precision Engineering. Washington, DC: Institute for Science and International Security. Bukkyo Dendo Kyokai. "In Memory: Rev. Dr. Yehan Numata." BDK America. Accessed 2026. https://www.bdkamerica.org/in-memory/. Bukkyo Dendo Kyokai. "Who We Are." BDK America. Accessed 2026. https://www.bdkamerica.org/about/. Carnegie Endowment for International Peace. "A. Q. Khan Nuclear Chronology." Washington, DC: Carnegie Endowment for International Peace. Institute of Buddhist Studies. "History and Remembrance: Pacific World." Berkeley, CA. https://pwj.shin-ibs.edu/history. Kyodo News. "Mitutoyo Exported 10,000 Devices Since 1995, Most of Them Illegally." Tokyo, 2006. Mitutoyo Corporation. "Mitutoyo History." Mitutoyo Europe. Accessed 2026. https://mitutoyo.eu/about-us/discover.... Mitutoyo Corporation. "Corporate Profile and Company History." Kawasaki, Japan. Accessed 2026. https://www.mitutoyo.co.jp/corporate/. New York Times. "Five Executives Are Arrested in Japan." August 2006. Nuclear Threat Initiative. "The Mitutoyo Case." WMD Insights, 2007. https://www.nti.org/analysis/articles.... Numata, Yoshiaki. Interview by The Worldfolio, 2018. https://www.theworldfolio.com/intervi.... Wikipedia. "Yehan Numata." https://en.wikipedia.org/wiki/Yehan_N....