Showa-Hikoki-Kogyo-Kaisha, a company associated with the other Japanese companies Surnimoto and Furukawa.

-It was founded in 1937 to build aviation engines. We are looking for more information. The BMW-132 made under license is known.

From Appendix 9:  We have some images of the BMW 132 engine manufactured under license by this company.

“BMW 132 by Showa”

“Photo of Showa's BMW 132”