Hi,
Sounds like 1993 TerraLiner. It has "Miyata" on the downtube and "Koga" on the seattube. If so, yes it the the one. Original specs were only Altus(!) and some other decent, but not very sophisticated stuff. I would say it was a bit underspecced for the nice frame.
The other two TerraLiners for that year were TerraLiner Alloy and TerraLiner Carbolite. Both shared the concept of tubing bonded to neat aluminium lugs, but the 1st being full aluminium and the later having carbon tubing (3 tubes) in the front triangle. The also shared a nice bonded aluminium fork.
The Alloy was specced with the hybrid specific Shimano 400cx groupset and the Carbolite with 700cx and Syncros/Nitto componentry.
Those 3 TerraLiners came without fenders, racks, lights etc.
I had the TerraLiner Carbolite of the 1992 year. I think with bikes like the Klein Adept and the Kuwahara C-Pacer one of the sweetest among all hybrids ever made. Catalogue pic:

1992 TerraLiner Carbolite with XT, a lot Syncros, SM Titanio. 1992 TLC frame: Hardtlite (steel) stays and fork, aluminium lugs and 4 Carbolite tubes for front triangle.