I find a lot of missing stuff reading the light novels. Mother's Rosario (on Baka-tsuki) Chapter 12, this character is mentioned (though not in name) when Kirito hears this character's name. He admits that "that person took care of [Heathcliff when he dived]". The description matches the Chronology in the Aincrad Arc in Koujiro Rinko's page. In the Mother's Rosario novel, it is then stated that Koujiro was the provider of the original design of the Medicuboid.
Hmmm, yes, it seems we forgot to mention this information into the article. If there's valuable information missing from the article, don't be afraid to add it. I'm not an admin myself, but I don't think we have a policy that would restrict this information o.o
TUSF (Talk) 07:01, August 2, 2013 (UTC)
In Volume 10 it is confirmed that the person is Koujirou Rinko. We even have this information available on some other related articles, but nobody has got around to putting it here as well and I personally have a lot of projects on my hand, so I didn't have time to add it. If you want to add the information, feel free to do so. If you make a mistake somewhere, there are plenty of editors that will help you correct it. The only way you could annoy us with editing is if you do pointless edits or edits that are against our rules (e.g. Linking the same page more than once on the same page). So, if you add information that can be sourced, don't feel discouraged to add it yourself. Of course, if you are unsure about a piece of information, you could just ask the other editors for confirmation :) --Gsimenas (talk) 06:37, August 3, 2013 (UTC)