ROCHESTER, N.Y. (AP) — The chemical know-how and machines that spooled out countless miles of film are being eyed for medical marijuana and solar cells, while the private rail line now carries tomatoes alongside coal as photography pioneer Kodak, its bankruptcy behind it, embraces a new role: startup landlord. [...] rather than selling off its sprawling, 2-square-mile Kodak Park campus, the company has become landlord to 58 diverse companies — and counting — that have been courted with the promise of plentiful utilities, its own railroad and unique access to Kodak's specialty technical and industrial capabilities. [...] tenant Natcore Technology Inc.