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Introduction to Mitutoyo Institute of Metrology
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History of Mitutoyo

1930-1959

1960-1979

1980-1999

2000-

Corporation chronicle

Product chronicle


1934

Yehan Numata founded a research laboratory at Musashi Shinden in Tokyo for the domestic production of micrometers.

1936

Founded Kamata Factory at Kamata in Tokyo and named Mitutoyo Manufacture.
Kamata plant (1936)

1938

Reorganized to stock corporation and Yehan Numata was inaugurated as president.
Founder Yehan Numata
Founder Yehan Numata

1930-


1937

Succeeded in domestic production of micrometers.
No.1 Micrometer


1940

Constructed Mizonokuchi Factory at Kawasaki, Kanagawa for mass production of micrometers, and immediately started production.
Kawasaki plant (1940)

1944

Constructed Utsunomiya Factory for mass production of high-speed film perforators, and immediately started production.
Utsunomiya plant (1944)

1947

Founded Hiroshima Research Laboratory at Shiwa in Hiroshima prefecture for preservation of micrometer manufacturing technologies.

1940-

1942

Trial manufacture of Gauge blocks.

1943

Trial manufacture of capacitance-type electric comparators.

1947

Restarted producing micrometers.

Developed an automatic weight sorting machines.

1949

Started trial production of calipers.
Started production of calipers. (1949)


1954

Yehan Numata attended in the International Metrology Conference (U.S.A.), exhibited corporate products and established a foothold for exports.

1959

Separated the sales department and founded Mitutoyo Trade Corporation instead.

Constructed Hiroshima Plant at Kure in Hiroshima prefecture and absorbed Hiroshima Research Laboratory aiming for consistent production of micrometers.
Hiroshima plant (1959)

1950-

1952

Started production of Indicating micrometers.

Started production of Snap meters.

Completed 3m-size Outside micrometers (world’s largest at that time).

1953

Started production of grinding gages.

1956

Started production of bore gages.

1957

Started production of projection-type inspection machines.

1958

Started production of Height Masters.

Started production of Test Indicators.

Started production of precision surface plates.

Started production of small stainless steel calipers.

1959

Started production of Dial indicators.

Started production of Height Gages.

Started production of Toolmakers microscopes.


1960-1979