Konica Minolta patents show that they might be behind the LEICA DG 10-25mm and 25-50mm f/1.7 lens design
Two new patents spotted by Asobinet (patent one and patent two) show that these Konica Minolta design nearly exactly match the optical design of the LEICA DG 10-25mm and 25-50mm f/1.7 lenses. I would NOT be surprised to learn that this is indeed the case.