Ito Institute Industry
Ito Institute produced the IMC line of machines using their own frame and running gear but buying engines from other manufacturers. They were in production between 1950 till 1962. The initial model called the "Hayabusa A" used a small war surplus generator engine made by Tohatsu. When the surplus stock ran down they switched to a Mitsubishi engine. Other engine suppliers used included Olympus, Mizuho, Gadden and Kawasaki. Engine displacements ranged from 50cc to 249cc. The constant changing of engine suppliers caused design and support issues, plus there appears to have been engine quality issues as well. The impacts of the Ise Bay 1959 typhoon eventually led to the collapse of the company.