Ronin was a six-issue mini series first published by DC from 1983 to 1984. With Ronin, Miller not only refined his own art and storytelling techniques, but also helped change how creator rights were viewed, and proved that comics in new formats could be commercially viable. Ronin was also his most clearly manga-influenced title, drawing mainly from the black and white Lone Wolf and Cub series. From Wikipedia. 

Frank Miller - Ronin

Download links:

http://rapidshare.de/files/31030961/R1.rar

http://rapidshare.de/files/31034646/R2.rar

http://rapidshare.de/files/31040306/R3.rar

(Two issues in each file.)

Thanks to misokvc from ProjectW and Axeman808 for these.