Not that I have any experience with the CCD cam's, but I do have an electronic background and would expect that there would indeed be differences between camera brands using the same Kodak sensors, and the quality of their support electronics.
I suspect the quality of the ADC(
Analog to Digital converter), or anything else in the analogue signal path(like amplifiers etc) would be just as improtant as that of the CCD itself.
As with CCDs, there are different manufacturers of ADCs and different versions of ADC from each manufacturer, some are better than others, some are extremely expensive, some reasonably cheap.
The design of the support circuitry for the ADC would also have an effect on image quality... the accuracy and stability of the ADCs reference voltage for example.
Links in a chain.