Appears to be a couple more climbs (1997, 1999) listed on the Wikipedia page http://en.wikipedia.org/wiki/Gasherbrum_IV which largely references Alpinist Newswire. The coordinates seem to be a little off too, at least vs. the Google base-map. The Gasherbrum I page appears to also need as per this page: "Contrary to general belief Gasherbrum doesn't mean "shining wall". The name comes from the Balti words rgasha, which means beautiful and brum which means mountain."
Thanks!
Coordinates corrected. Info Source: High Asia 5700/500 list, by Jurgalski and de Ferranti. 35°45'45" 76°36'57" Converted to decimal.
The missing Korean ascents added.
I also changed the info on the GI page. I was one of those which believed Gasherbrum meant shining wall, but was later taught that wasn't the case. I had forgotten to change that on the GI page.