He hasn't released a proper comic in more than a decade, and that one was, unfortunately, the wretchedly awful Gits 2, which was every bit the Dark Knight Strikes Again to GitS 1's The Dark Knight Returns. Which means the last decent comic he released was Dominion: Conflict 1, all the way back in 1995.
Real Drive and Ghost Hound were pretty good, but his involvement in those likely didn't extend beyond the initial idea, with much of the reason for the quality of those two shows resting with talent like Ryutaro Nakamura, Chiaki J. Konaka, Kazuhiro Furuhashi, and Junichi Fujisaku.