What I define as "minimal" is the Minimal House.
There's no such thing as Minimal Techno saying Techno is already implying that it is Minimal.
If we look back in the 80s and beginning of the 90s, Techno was looking itself for an identity and if we follow it's evolution, it's simply a genre of music who evolved with the technology. Suddently you could have much more faster techno and harder because the sound quality was more decent, more sophisticated synths because you could actually get a nice sound with a software. What has become minimal is simply tech-house with a stripped beat and bleeps and bloop.

That's what I define as Minimal.