Jikan means "Kannon himself" (ji = jibun = himself, Kan = Kanzeon). Actually, Ji means the person himself, and Kan means contemplation. Therefore, Jikan means instrospection, the inner self-observation, or the observation which the "self" does of its own interior conditions.
This way, He introduced himself as Kanzeon Bossatsu.
Works created under the Jikan nickname:
Jinsai.org - Life and work of Master Jinsai