Abstract
'Elmo 16 mm film projector (model A)' was Japan's first domestically produced 16 mm film projector. In this paper, its inventor, Hidenobu Sakaki was reported. He was known as the "Genius of Inventions in Nagoya" At the time, the mainstream was 35 mm film projectors, which did not become popular because of portability and setting up issues. Sakaki believed in the possibility of use of small-scale projectors in the education sector, and with this idea in mind, he thoroughly studied an imported 16 mm toy projector. After some setbacks, he managed to successfully create the first 16 mm film projector, model-A. It was the first domestically-made small-scale film projector in Japan, and was driven by hand.
