Neither could I, I spent half an hour or so trawling through various resources I have. It doesn't appear to be, or at least I can't find a match in the relevant online catalogues, made by JAE, Molex, Tyco, or AMP (who are basically the same).

That said, I'm sure I've seen those connectors before somewhere. It's very likely that they're from one of the Japanese manufacturers based on the fact it's in a piece of Japanese equipment. I have a vague feeling they might be used in some automotive applications as well. They're not automotive-specific, but it's a possible route to take.

What's the connector pitch? Is it metric or imperial?

pca