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In page Canon Inc.:

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The company was originally named Seikikōgaku kenkyūsho (Japanese: 精機光学研究所, lit. 'Precision Optical Laboratory'). In 1934, it produced the Kwanon, a prototype for Japan's first-ever 35 mm camera with a focal-plane-based shutter.[1] In 1947, the company name was changed to Canon Camera Co., Inc.,[1] shortened to Canon Inc. in 1969. The name Canon comes from Buddhist bodhisattva Kannon (Japanese: 観音, lit. 'Guanyin'), previously transliterated as Kuanyin, Kwannon, or Kwanon in English.[citation needed]