Check out the following youtube posting on these beautiful pieces from Hattori.  sorry for the low resolution as these set of videos were taken by a phone.

Hattori - the HT-05 Dream Hunter Knife

4-inch heavy gauge reverse curved hollow ground AUS-8 blade with large false edge on back. Hand contoured layered linen Black Micarta handle with solid Nickel silver Hilt and rivets.
AUS-8 
4.5mm thick,
103mm blade,
210mm overall,
Weight 175g

https://www.youtube.com/watch?v=S9ditLi6mt8

Hattori - HA6-4 Semi-Drop Point Utility Knife

Leather washer handle  4" hollow ground Semi-Drop point blade AUS-6 Vanadium stainless steel with false edge on the back. Comfortable grip leather washers handle securely fastened with bolt end. Solid brass hilt and aluminum butt.

AUS-6  in

4.0mm thick,

105mm blade,  

210mm overall,

Weight 140g

https://www.youtube.com/watch?v=j-4ehVJxl3s