
Source: http://pc.watch.impress.co.jp/docs/arti ... 3/ipsj.htm
I just found that picture on the interwebs, and I was wondering what all those nice ergo NEC keyboards were.
The one on the right is a PK-KB015 with yellow Alps switches. xixihaha2008 on GH has one.
The first one on the left is a PC-9801-98-S02, yellow Alps switches again. Hasu has one.
But what are the last three ones on the left?
NEC made some Topre keyboards, so maybe there's a µTron ancestor here!

Not in that picture but also known: the PC-8801-K1.
The last one on the left looks a bit like it, but has a column more on each side, and a one more row of function keys on top.