Here's an interview with Janty founder and president Ludo Timmermans. Many vapers in American think of joyetech when they hear "eGo" and Dekang when they hear "RY4." Both of those are actually Janty creations (though some dispute the latter claim). Those are two huge contributions to vaping and I don't think that Janty gets the credit that it deserves.
Lots more details on my visit with Ludo here.