Timeline
- 1912 Yamaoka Magokichi sets up business under the name Yamaoka Engine Workshop.
- 1931 Inauguration of Yamaoka Engine Workshop limited.
- 1936 Inauguration of Yamaoka Internal Combustion Machines limited.
- 1940 Yamaoka Internal Combustion Machines amalgamates with Yamaoka Engine Workshop.
- 1952 Company name changes to Yanmar Diesel limited.
- 2002 Company name changes to Yanmar limited.
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