Ah you're right, although I was thinking more like they could be coded names (eg. ウォッカ becomes ウオ ツカ as a pun) then again why isn't Miyano's name coded as well? Should've asked myself that beforehand...
(Btw, it's the first time I've heard of Sakanazuka, who did you hear it from? But Uotsuka is definitely one way to pronounce the surname. But whichever way they pronounce the name, no way anyone can 'unsee' the pun on Uotsuka lol...)
Also we only see O澤O, sorry I totally filled the gaps of my memories with this link I've read in the past: http://anokata.xxxxxxxx.jp/faq.html (3rd question) but I'm pretty gutted I don't have the original source to confirm this interview (though there are a few sources on the Internet pointing towards the same quote: あれ、見えないけど魚塚三郎の隣に 本当は黒澤陣って書いてあるんだよね。(That's not seen, but next to Uotsuka Saburou really is Kurosawa Jin written down.) If only there's a scan lol.......)
And in his quote immediately before that, Aoyama did kinda admit to the name Kurosawa Jin (assuming this interview really is in Rabu Conan page77...)
In no way am I saying they're real names, normally they'd be at least coded, right???? XD (Even if they're real names it wouldn't make sense--- do their real names come before the beverage naming convention or what? etc.) What bothers me the most is Shiho's name as it is. Unless there's somebody non-BO at the 'meeting/party' who knows Shiho or her parents...
In any case, however much misleading Aoyama wants to make this, this level of red herring is just way too much to pass by!
Edit: Just found the series of posts about this a few pages back, haha sorry for repeating. The muraji thing totally makes sense. Personally, more the reason to believe Ooguro being the boss, or at least one of the top-most directors/commander/whatever (but then again, we have James Black............. dammit.)
Still doesn't solve the Uotsuka Saburou speculation though