It is headquartered in Ōta, Tokyo, Japan. Canon Inc. has 383 subsidiaries as of 31 June 2017. The number includes second-generation subsidiaries, for example, Canon IT Solutions Inc.

The origins of Canon date back to the founding of Precision Optical Instruments Laboratory in Japan in 1937 by Takeshi Mitarai, Goro Yoshida, Saburo Uchida and Takeo Maeda. During its early years the company did not have any facilities to produce its own optical glass, and its first cameras incorporated Nikkor lenses from Nippon Kogaku K.K. (the later Nikon Corporation).

Between 1933 and 1936 'The Kwanon', a copy of the Leica design, Japan's first 35 mm focal-plane-shutter camera, was developed in prototype form. In 1940 Canon developed Japan's first indirect X-ray camera.

Canon introduced a field zoom lens for television broadcasting in 1958 and in 1959 introduced the Reflex Zoom 8, the world's first movie camera with a zoom lens, and the Canonflex.

In 1937, The company is incorporated under the name Precision Optical Industry Company Ltd., marking Canon's official founding date. In 1947, The company officially becomes Canon Camera Co., Inc.

Canon has been manufacturing and distributing digital cameras since 1984, starting with the RC-701. The RC series was followed by the PowerShot and Digital IXUS series of digital cameras. Canon also developed the EOS series of digital single-lens reflex cameras (DSLR) which includes high-end professional models.

Due to consumers switching from compact cameras to smartphones, Canon's Q1 2013 operating profit fell 34 percent year-on-year.

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According to en.wikipedia