Horribly sad news... May he rest in peace. Uemura certainly took a significant role in both Nintendo and video games' history as a whole, and he spent years teaching others which no doubt helps too.
Both the NES and the SNES (or Famicom and Super Famicom if you want) have very interesting development stories, with the former being quite the ordeal to get rolling, in no small part thanks to Hiroshi Yamauchi being amazingly vague in what he wanted (imagine getting a call from your boss saying "make something to play arcade games at home and it needs to not have competition in less than three years" and letting you on your own) and imposing limits that made little sense, like no being able to work with the company you've been working with for other products.
But he and his team got to create something that shaped the medium, and even helped bring back to life certain market, something we still pay attention to and enjoy playing.
To this day I still discover games on those systems I never knew before, and thanks to how the cartridges were capable of improving the system's capabilities, it's pretty neat to see how video games evolved inside those systems throughout their life. There's such a long road from, I don't know, Golf to NES Open Tournament Golf, or early Famicom games such as Jajamaru-Kun to Ninja Gaiden, and it's surprising that something like Final Fantasy IV and Seiken Densetsu 3 are on the same system.
He was behind other things, like the Famicom Disk System and the Satellaview, which are also fascinating (and getting harder to preserve). Such interesting times to read about game development...
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